Test Bank for Focus on Nursing Pharmacology 8th Edition Karch by StudyGuide

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Table of Contents Table of Contents Chapter 01 - Introduction to Drugs Chapter 02 - Drugs and the Body Chapter 03 - Toxic Effects of Drugs Chapter 04 - The Nursing Process in Drug Therapy and Patient Safety Chapter 05 - Dosage Calculations Chapter 06 - Challenges to Effective Drug Therapy Chapter 07 - Introduction to Cell Physiology Chapter 08 - Antiinfective Agents Chapter 09 - Antibiotics Chapter 10 - Antiviral Agents Chapter 11 - Antifungal Agents Chapter 12 - Antiprotozoal Agents Chapter 13 - Anthelmintic Agents Chapter 14 - Antineoplastic Agents Chapter 15 - Introduction to the Immune Response and Inflammation Chapter 16 - Antiinflammatory, Antiarthritis, and Related Agents Chapter 17 - Immune Modulators Chapter 18 - Vaccines and Sera Chapter 19 - Introduction to Nerves and the Nervous System Chapter 20 - Anxiolytic and Hypnotic Agents Chapter 21 - Antidepressant Agents Chapter 22 - Psychotherapeutic Agents Chapter 23 - Antiseizure Agents Chapter 24 - Antiparkinsonism Agents Chapter 25 - Muscle Relaxants Chapter 26 - Narcotics, Narcotic Antagonists, and Antimigraine Agents Chapter 27 - General and Local Anesthetic Agents Chapter 28 - Neuromuscular Junction Blocking Agents Chapter 29 - Introduction to the Autonomic Nervous System Chapter 30 - Adrenergic Agonists Chapter 31 - Adrenergic Antagonists Chapter 32 - Cholinergic Agonists Chapter 33 - Anticholinergic Agents Chapter 34 - Introduction to the Endocrine System Chapter 35 - Hypothalamic and Pituitary Agents Chapter 36 - Adrenocortical Agents Chapter 37 - Thyroid and Parathyroid Agents Chapter 38 - Agents to Control Blood Glucose Levels Chapter 39 - Introduction to the Reproductive System Chapter 40 - Drugs Affecting the Female Reproductive System Chapter 41 - Drugs Affecting the Male Reproductive System Chapter 42 - Introduction to the Cardiovascular System Chapter 43 - Drugs Affecting Blood Pressure Chapter 44 - Agents for Treating Heart Failure Chapter 45 - Antiarrhythmic Agents Chapter 46 - Antianginal Agents Chapter 47 - Lipid-Lowering Agents Chapter 48 - Drugs Affecting Blood Coagulation Chapter 49 - Drugs Used to Treat Anemias Chapter 50 - Introduction to the Renal System

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Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Chapter 51 - Diuretic Agents Chapter 52 - Drugs Affecting the Urinary Tract and the Bladder Chapter 53 - Introduction to the Respiratory System Chapter 54 - Drugs Acting on the Upper Respiratory Tract Chapter 55 - Drugs Acting on the Lower Respiratory Tract Chapter 56 - Introduction to the Gastrointestinal System Chapter 57 - Drugs Affecting Gastrointestinal Secretions Chapter 58 - Drugs Affecting Gastrointestinal Motility Chapter 59 - Antiemetic Agents

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Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Chapter 01 - Introduction to Drugs

A nurse working in radiology administers iodine to a patient who is having a computed tomography (CT) scan. The nurse working on the oncology unit administers chemotherapy to patients who have cancer. At the Public Health Department, a nurse administers a measles-mumps-rubella (MMR) vaccine to a 14-month-old child as a routine immunization. Which branch of pharmacology best describes the actions of all three nurses?

Pharmacoeconomics

Pharmacotherapeutics

Pharmacodynamics

Pharmacokinetics

Ans:

B Feedback: Pharmacology is the study of the biologic effects of chemicals. Nurses are involved with clinical pharmacology or pharmacotherapeutics, which is a branch of pharmacology that deals with the uses of drugs to treat, prevent, and diagnose disease. The radiology nurse is administering a drug to help diagnose a disease. The oncology nurse is administering a drug to help treat a disease. Pharmacoeconomics includes any costs involved in drug therapy. Pharmacodynamics involves how a drug affects the body and pharmacokinetics is how the body acts on the body.

A physician has ordered intramuscular (IM) injections of morphine, a narcotic, every 4 hours as needed for pain in a motor vehicle accident victim. The nurse is aware this drug has a high abuse potential. Under what category would morphine be classified?

Schedule I

Schedule II

Schedule III

Schedule IV

Ans:

B Feedback: Narcotics with a high abuse potential are classified as Schedule II drugs because of severe dependence

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

liability. Schedule I drugs have high abuse potential and no accepted medical use. Schedule III drugs have a lesser abuse potential than II and an accepted medical use. Schedule IV drugs have low abuse potential and limited dependence liability. 3.

When involved in phase III drug evaluation studies, what responsibilities would the nurse have?

Working with animals who are given experimental drugs

Choosing appropriate patients to be involved in the drug study

Monitoring and observing patients closely for adverse effects

Conducting research to determine effectiveness of the drug

Ans:

C Feedback: Phase III studies involve use of a drug in a vast clinical population in which patients are asked to record any symptoms they experience while taking the drugs. Nurses may be responsible for helping collect and analyze the information to be shared with the Food and Drug Administration (FDA) but would not conduct research independently because nurses do not prescribe medications. Use of animals in drug testing is done in the preclinical trials. Select patients who are involved in phase II studies to participate in studies where the participants have the disease the drug is intended to treat. These patients are monitored closely for drug action and adverse effects. Phase I studies involve healthy human volunteers who are usually paid for their participation. Nurses may observe for adverse effects and toxicity.

What concept is considered when generic drugs are substituted for brand name drugs?

Bioavailability

Critical concentration

Distribution

Half-life

Ans:

A Feedback: Bioavailability is the portion of a dose of a drug that reaches the systemic circulation and is available to act on body cells. Binders used in a generic drug may not be the same as those used in the brand name drug. Therefore, the way the body breaks down and uses the drug may differ, which may eliminate a generic drug substitution. Critical concentration is the amount of a drug that is needed to cause a therapeutic effect and should not differ between generic and brand name medications. Distribution is the phase of pharmacokinetics, which involves the movement of a drug to the body’s tissues and is the

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

same in generic and brand name drugs. A drug’s half-life is the time it takes for the amount of drug to decrease to half the peak level, which should not change when substituting a generic medication. 5.

A nurse is assessing the patient’s home medication use. After listening to the patient list current medications, the nurse asks what priority question?

Do you take any generic medications?

Are any of these medications orphan drugs?

Are these medications safe to take during pregnancy?

Do you take any over-the-counter medications?

Ans:

D Feedback: It is important for the nurse to specifically question use of over-the-counter medications because patients may not consider them important. The patient is unlikely to know the meaning of orphan drugs unless they too are health care providers. Safety during pregnancy, use of a generic medication, or classification of orphan drugs are things the patient would be unable to answer but could be found in reference books if the nurse wishes to research them.

After completing a course on pharmacology for nurses, what will the nurse know?

Everything necessary for safe and effective medication administration

Current pharmacologic therapy; the nurse will not require ongoing education for 5 years.

General drug information; the nurse can consult a drug guide for specific drug information.

The drug actions that are associated with each classification of medication

Ans:

C Feedback: After completing a pharmacology course nurses will have general drug information needed for safe and effective medication administration but will need to consult a drug guide for specific drug information before administering any medication. Pharmacology is constantly changing, with new drugs entering the market and new uses for existing drugs identified. Continuing education in pharmacology is essential to safe practice. Nurses tend to become familiar with the medications they administer most often, but there will always be a need to research new drugs and also those the nurse is not familiar with because no nurse knows all medications.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

A nurse is instructing a pregnant patient concerning the potential risk to her fetus from a Pregnancy Category B drug. What would the nurse inform the patient?

Adequate studies in pregnant women have demonstrated there is no risk to the fetus.

Animal studies have not demonstrated a risk to the fetus, but there have been no adequate studies in pregnant women.

Animal studies have shown an adverse effect on the fetus, but there are no adequate studies in pregnant women.

There is evidence of human fetal risk, but the potential benefits from use of the drug may be acceptable despite potential risks.

Ans:

B Feedback: Category B indicates that animal studies have not demonstrated a risk to the fetus. However, there have not been adequate studies in pregnant women to demonstrate risk to a fetus during the first trimester of pregnancy and no evidence of risk in later trimesters. Category A indicates that adequate studies in pregnant women have not demonstrated a risk to the fetus in the first trimester or in later trimesters. Category C indicates that animal studies have shown an adverse effect on the fetus, but no adequate studies in humans. Category D reveals evidence of human fetal risk, but the potential benefits from the use of the drugs in pregnant women may outweigh potential risks.

Discharge planning for patients leaving the hospital should include instructions on the use of over-thecounter (OTC) drugs. Which comment by the patient would demonstrate a good understanding of OTC drugs?

OTC drugs are safe and do not cause adverse effects if taken properly.

OTC drugs have been around for years and have not been tested by the Food and Drug Administration (FDA).

OTC drugs are different from any drugs available by prescription and cost less.

OTC drugs could cause serious harm if not taken according to directions.

Ans:

D Feedback: It is important to follow package directions because OTCs are medications that can cause serious harm if not taken properly. OTCs are drugs that have been determined to be safe when taken as directed; however, all drugs can produce adverse effects even when taken properly. They may have originally been prescription drugs that were tested by the FDA or they may have been grandfathered in when the

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

FDA laws changed. OTC education should always be included as a part of the hospital discharge instructions. 9.

What would be the best source of drug information for a nurse?

Drug Facts and Comparisons

A nurse’s drug guide

A drug package insert

The Physicians’ Drug Reference (PDR)

Ans:

B Feedback: A nurse’s drug guide provides nursing implications and patient teaching points that are most useful to nurses in addition to need-to-know drug information in a very user friendly organizational style.Lippincott’s Nursing Drug Guide (LNDG) has drug monographs organized alphabetically and includes nursing implications and patient teaching points. Numerous other drug handbooks are also on the market and readily available for nurses to use. Although other drug reference books such as Drug Facts and Comparisons, PDR, and drug package inserts can all provide essential drug information, they will not contain nursing implications and teaching points and can be more difficult to use than nurse’s drug guides.

10.

The nurse is preparing to administer a medication from a multidose bottle. The label is torn and soiled but the name of the medication is still readable. What is the nurse’s priority action?

Discard the entire bottle and contents and obtain a new bottle.

Find the drug information and create a new label for the bottle.

Ask another nurse to verify the contents of the bottle.

Administer the medication if the name of the drug can be clearly read.

Ans:

A Feedback: When the drug label is soiled obscuring some information the safest action by the nurse is to discard the bottle and contents because drug labels contain a great deal of important information, far more than just the name of the drug. Concentration of the drug, expiration date, administration directions, and precautions may be missing from the label and so put the patient at risk. Looking up drug information in a drug handbook or consulting with another nurse will not supply the expiration date or concentration of medication. Be safe and discard the bottle and its contents.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

11.

What aspect of pharmacology does a nurse study? (Select all that apply.)

Chemical pharmacology

Molecular pharmacology

Impact of drugs on the body

The body’s response to a drug

Adverse and anticipated drug effects

Ans:

C, D, E Feedback: Nurses study pharmacology from a pharmacotherapeutic level, which includes the effect of drugs on the body, the body’s response to drugs, and both expected and unexpected drug effects. Chemical and molecular pharmacology (Options A and B) are not included in nursing pharmacology courses.

12.

The nurse, providing patient teaching about home medication use to an older adult, explains that even when drugs are taken properly they can produce negative or unexpected effects. What are these negative or unexpected effects called?

Teratogenic effects

Toxic effects

Adverse effects

Therapeutic effects

Ans:

C Feedback: Negative or unexpected effects are known as adverse or side effects. Teratogenic effects are adverse effects on the fetus and not a likely concern for an older adult. Toxic effects occur when medication is taken in larger than recommended dosages caused by an increase in serum drug levels. Therapeutic effects are the desired actions for which the medication is prescribed.

13.

After administering a medication, for what would the nurse assess the patient?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Drug effects

Allergies

Pregnancy

Preexisting conditions

Ans:

Feedback: After the medication is administered, the nurse assesses the patient for drug affects, both therapeutic and adverse. The nurse would assess the patient for allergies, preexisting conditions, and pregnancy before administering a medication. 14.

The nurse receives an order to administer an unfamiliar medication and obtains a nurse’s drug guide published four years earlier. What is the nurse’s most prudent action?

Find a more recent reference source.

Use the guide if the drug is listed.

Ask another nurse for drug information.

Verify the information in the guide with the pharmacist.

Ans:

A Feedback: The nurse is responsible for all medications administered and must find a recent reference source to ensure the information learned about the medication is correct and current. Using an older drug guide could be dangerous because it would not contain the most up-to-date information. Asking another nurse or the pharmacist does not guarantee accurate information will be obtained and could harm the patient if the information is wrong.

15.

What would the nurse provide when preparing a patient for discharge and home medication selfadministration?

Personal contact information to use if the patient has questions

Thorough medication teaching about drugs and the drug regimen

Over-the-counter medications to use to treat potential adverse effects

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

A sample size package of medication to take home until prescription is filled

Ans:

Feedback: The nurse is responsible for providing thorough medication teaching about drugs and the drug regimen to ensure the patient knows how to take the medication and when to notify the provider. The nurse never provides personal contact information to a patient. If adverse effects arise, the patient is taught to call the health care provider and should not self-medicate with over-the-counter drugs, which could mask serious symptoms. The nurse never dispenses medication because it must be properly labeled for home use; this is done by the pharmacy. 16.

In response to the patient’s question about how to know whether drugs are safe, the nurse explains that all medications undergo rigorous scientific testing controlled by what organization?

Food and Drug Administration (FDA)

Drug Enforcement Agency (DEA)

Centers for Disease Control and Prevention (CDC)

Joint Commission on Accreditation of Healthcare Organizations (JCAHO)

Ans:

A Feedback: The FDA is responsible for controlling and regulating the development and sale of drugs in the United States, allowing new drugs to enter the market only after being subjected to rigorous scientific testing. The DEA regulates and controls the use of controlled substances. The CDC monitors and responds to infectious diseases. The JCAHO is an accrediting body that inspects acute care facilities to ensure minimum standards are met.

17.

The nurse, assisting with Phase I drug studies, is talking with a woman who asks, Why can’t I participate in this study? What would be the nurse’s best response?

Drugs pose a greater risk to women of reproductive age.

Drugs are only tested on men because they are stronger.

Women are more prone to adverse effects from medications.

Drugs affect women differently than they affect women.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

A Feedback: Phase I drug trials usually involve healthy male volunteers because chemicals may exert an unknown and harmful effect on ova in women which could result in fetal damage when the woman becomes pregnant. Drugs are tested on both men and women, but women must be fully informed of risks and sign a consent stating they understand the potential for birth defects. Women are not more prone to adverse effects of medications. Although some drugs may affect women differently than men, this is a rationale for why drugs need to be tested on women, not an explanation of why women are not included in a phase I study.

18.

The patient tells the nurse about a new drug being tested to treat the disease she was diagnosed with and asks the nurse whether the doctor can prescribe a medication still in the preclinical phase of testing. What is the nurse’s best response?

The doctor would have to complete a great deal of paperwork to get approval to prescribe that drug.

Sometimes pharmaceutical companies are looking for volunteers to test a new drug and the doctor could give them your name.

Drugs in the preclinical phase of testing are only tested on animals and so would not be available to you.

Drugs in the preclinical phase of testing are given only to healthy young men and so would not be available to you.

Ans:

C Feedback: During the preclinical phase of testing drugs are tested on animals and are not available to patients. In phase I, the drug is tested on volunteers who are usually healthy young men. It is only in phase III studies that the drug is made available to prescribers who agree to closely monitor patients getting the medication.

19.

The nurse is caring for a patient who had a severe, acute, previously unseen adverse effect of a drug in Phase III testing. The patient asks, After all the testing done on this drug, didn’t they know this adverse effect could occur? What is the nurse’s best response? (Select all that apply.)

Pharmaceutical companies sometimes underreport problems to make more money.

Your response to this medication will be reported to the drug company and the Food and Drug Administration (FDA).

When a drug begins to be used by a large clinical market, new adverse effects may be found.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The pharmaceutical company weighs the benefits of the drug with the severity of adverse effects.

After a drug reaches phase III testing it is considered an accepted drug and will not be recalled.

Ans:

B, C Feedback: When a new and unexpected adverse effect occurs, especially one of a serious nature, it is reported to the drug company who reports it to the FDA immediately. When a large number of people begin using the drug in phase III studies, it is not unusual to identify adverse effects not previously noted. It would be both unprofessional and inaccurate to imply that pharmaceutical companies put profit ahead of patient concern because lawsuits would remove any potential profit if a drug proves harmful. The FDA is responsible for weighing risk versus benefit in deciding whether to allow the drug to move to the next phase of testing. Drugs found to have serious adverse effects can be removed from the market at any time.

20.

The telephone triage nurse receives a call from a patient asking for a prescription for a narcotic to manage his surgical pain. The nurse explains that narcotic prescriptions must be written and cannot be called in to the pharmacy. The patient says, Why are narcotics so difficult to get a prescription for? What is the nurse’s best response?

The Drug Enforcement Agency (DEA) determines the risk for addiction and the Food and Drug Administration (FDA) enforces their control.

The increase in the number of drug addicts has made the rules stronger.

The Centers for Disease Control and Prevention (CDC) regulates use of controlled substances to reduce the risk of injury.

Controlled substances like narcotics are controlled by the FDA and the DEA.

Ans:

D Feedback: Controlled substances are controlled by the FDA and the DEA: the DEA enforces control while the FDA determines abuse potential. Regulations related to controlled substances have remained strict and specific and have not been significantly impacted by substance abusers. The CDC is not involved in control of narcotics and other controlled substances.

21.

The nurse explains the Drug Enforcement Agency’s (DEA’s) schedule of controlled substances to the nursing assistant who asks, Do you ever get a prescription for Schedule I medications? What is the nurse’s best response? Schedule I medications have no medical use so they are not prescribed.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Schedule I medications have the lowest risk for abuse and do not require a prescription.

Schedule I medications are only prescribed in monitored units for patient safety.

Schedule I medications are found in antitussives and antidiarrheals sold over the counter.

Ans:

Feedback: Schedule I medications have no medical use and are never prescribed. Schedule V medications have the lowest risk for abuse and are found mostly in antitussives and antidiarrheals but they are not sold over the counter. 22.

The nurse, working on the maternity unit, receives a call from a pregnant woman asking how she can know whether a medication is safe to take while pregnant. What is the nurse’s best response?

You can take any drug indicated as a Category A.

No medications should be taken during pregnancy.

Never take medication until you receive approval from your health care provider.

Most medications are safe but you need to weigh benefit against risk.

Ans:

C Feedback: The best response to a pregnant woman asking about medication usage is to talk with her obstetric practitioner because the best advice will come from someone who knows their health and pregnancy history. While Category A drugs have no known risk, they may be contraindicated by the woman’s health condition or pregnancy issues and many pregnant women would not know what it means to be a Category A drug. Medications can be helpful during pregnancy if taken safely and appropriately. Although risk benefit needs to be weighed, it should occur with advice from the obstetric practitioner.

23.

A patient asks the nurse, What is a Drug Enforcement Agency (DEA) number? What is the nurse’s best response?

DEA Numbers are given to physicians and pharmacists when they register with the DEA to prescribe and dispense controlled substances.

Physicians must have a DEA number in order to prescribe any type of medication for patients.

DEA numbers are case numbers given when someone breaks the law involving a controlled substance.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

DEA numbers are contact numbers to talk with someone at the DEA when questions arise about controlled substances.

Ans:

Feedback: All pharmacists and physicians must register with the DEA. They are given numbers that are required before they can dispense or prescribe controlled substances. DEA numbers are only needed when prescribing controlled substances. A DEA number is neither a case number nor a phone number. 24.

When moving to another state, what is the nurse responsible for becoming familiar with?

Local policies and procedures for controlled substance administration

Local provider’s Drug Enforcement Agency (DEA) number for prescribing controlled substances

The agency monitoring controlled substances in the new state

Board of Nursing regulations of controlled substances in the new state

Ans:

A Feedback: The nurse needs to learn local policies and procedures for controlled substance administration because they can vary with some local governments more rigorous than others. Nurses do not memorize a provider’s DEA numbers. The DEA is a federal agency that monitors controlled substances in all states. State boards of nursing do not regulate controlled substances but may regulate how controlled substances are administered by nurses.

25.

The patient looks at the prescription provided by the doctor and asks the nurse whether he can request a generic substitution. The nurse answers No when noting what on the prescription?

No refills

DAW

Brand name used on prescription

Patient older than 65 years of age

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Feedback: DAW stands for dispense as written and means that the doctor does not want a generic substituted for the prescribed medication. Requesting no refills does not preclude the substitution of a generic medication. Even when the brand name is ordered, the pharmacist can substitute a generic equivalent so long as the prescriber does not write DAW. Generic substitutions are not impacted by the patient’s age. 26.

The patient asks the nurse why generic drugs would be used and voices concerns that only the brand name product will be safe. What is the nurse’s best response?

Generic drugs are often less expensive.

Some quality control problems have been found with generic drugs.

Most generic drugs are very safe and can be cost effective as well.

Although initial cost is higher for a brand name it may cost less in the long run.

Ans:

C Feedback: Most generic medications are completely safe and may be identical to the brand name drug except generic medications are often less expensive, but this does not address the patient’s concern about safety. Although some quality control issues have occurred in the past, this does not address the patient’s concerns regarding safety or explain why generic drugs are prescribed and used. Although some doctors believe initial cost is higher but will cost less over time, this response also does not address the patient’s concerns.

27.

While studying for the test, the nursing student encounters the following drug: papaverine (Pavabid). What does the nursing student identify the name Pavabid as?

The generic name

The chemical name

The brand name

The chemical and generic name

Ans:

C Feedback: Several clues indicate the brand name including capitalization of the first letter in the name and in parentheses. Generic names are not capitalized; chemical names are descriptions of the chemistry of the

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

medication resulting in complicated names. 28.

The patient is prescribed a medication that was just placed in Phase IV study. The patient tells the nurse, This medication is too expensive. Could the doctor order a generic form of this medication? What is the nurse’s most accurate response?

Medications are not produced in generic form until the patent expires, which normally takes several years.

You can request the generic form but the binder used may make the drug less effective for this medication.

The generic form of the medication would not be any less expensive because this is a relatively new medication.

Generic medications are lower quality drugs and that would mean you would not be getting the best treatment available.

Ans:

A Feedback: When a new drug enters the market, it is given a time-limited patent; generic forms of the medication cannot be produced until the patent expires. Because no generic version of this drug will exist because it is so new, it is impossible to predict what binder will be used or what the cost would be.

29.

The nurse learns that a drug needed by the patient is classified as an orphan drug and recognizes what as a reason for this classification? (Select all that apply.)

The drug is rarely prescribed.

The drug has dangerous adverse effects.

The drug treats a rare disease.

The patent on the medication is still effective.

Production by a company that only manufactures drugs.

Ans:

A, B, C Feedback: Drugs are classified as orphan drugs when they are not financially viable for a drug company to produce either because of risk for lawsuits about adverse effects or because the drug is not prescribed, which is often seen in rare diagnoses. Generic drugs are not produced until the patent expires, but this

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

has no impact on classifying a particular drug as an orphan drug. Generic drugs are often produced by companies that only manufacture drugs without conducting research, but this has no bearing on the classification of orphan drugs. 30.

While collecting a medication history, the patient admits to doubling the recommended dosage of an over-the-counter (OTC) medication, saying It’s harmless or they would require a prescription. What is the nurse’s best response?

OTC drugs are serious medications and carry serious risks if not taken as directed.

Taking medications like that is careless and you could kill yourself doing it.

Sometimes you need to take more than the package directs to treat the symptoms.

Did you notify your doctor of the increased dosage you were taking?

Ans:

A Feedback: OTC drugs are no less a medication than prescription drugs and carry the same types of risks for overdosage and toxicity if directions are not followed. Although increasing the dosage is careless and dangerous, it is important to use the information as a teaching opportunity rather than scolding the patient. Agreeing with the patient or asking her if she talked to the doctor misses the teaching opportunity, which could be harmful for the patient.

31.

The patient asks the nurse, Is it safe to take over-the-counter (OTC) medications with prescription medications? What is the nurse’s best response? (Select all that apply.)

OTC medications can interact with prescription medications.

It is important to tell your doctor all medications you take, including OTC.

OTC medications could mask or hide signs and symptoms of a disease.

You should avoid taking any OTC medication when taking prescription drugs.

Taking OTC medications can make your prescription medication more effective.

Ans:

A, B, C Feedback: OTC medications can interact with prescription medications or other OTC so it is always important to consult your pharmacist and provider for advice. To provide the most accurate instruction, the health care provider must know all medications taken including dietary supplements, OTC, and prescription.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

OTC medications could mask or hide symptoms of a disease so it is always important to consult a physician if symptoms persist. OTC medications are not prohibited when taking prescription drugs as long as no drug interaction occurs. How an OTC will impact a prescription medication varies depending on the medications involved, so it is incorrect to say it will make the prescription drug more effective. 32.

Before administering a prescription medication, what information does the nurse find on the drug label? (Select all that apply.)

Brand name

Generic name

Drug concentration

Expiration date

Adverse effects

Ans:

A, B, C, D Feedback: Prescription drug labels will contain the brand name, generic name, drug concentration, and expiration date. Adverse effects will not be listed on drug labels.

33.

The nurse is preparing a medication that is new to the market and cannot be found in the nurse’s drug guide. Where can the nurse get the most reliable information about this medication?

Package insert

Another nurse

Drug manufacturer

Physician

Ans:

A Feedback: The most reliable information about the drug can be found on the package insert supplied by the manufacturer because it was prepared according to strict Food and Drug Administration (FDA) regulations. Asking another nurse or the physician is not reliable and cannot be verified as accurate. It would not be realistic to call the drug manufacturer for information.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

34.

The nurse explains that what drug resource book is compiled from package inserts?

Nurses Drug Guide

Physicias’s Desk Reference (PDR)

Drug Facts and Comparisons

AMA Drug Evaluations

Ans:

B Feedback: The PDR is a compilation of information found on package inserts. The Nurses Drug Guide uses more easily understood language and incorporates nursing considerations and patient teaching points. Drug Facts and Comparisons includes cost comparison, often not found in other drug resource guides. The AMA Drug Evaluations is far less biased than the PDR and includes drugs still in the research stage of development.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Chapter 02 - Drugs and the Body

Drugs do not metabolize the same way in all people. For what patient would a nurse expect to assess for an alteration in drug metabolism?

A 35-year-old woman with cervical cancer

A 41-year-old man with kidney stones

A 50-year-old man with cirrhosis of the liver

A 62-year-old woman in acute renal failure

Ans:

C Feedback: The liver is the most important site of drug metabolism. If the liver is not functioning effectively, as in patients with cirrhosis, drugs will not metabolize normally so that toxic levels could develop unless dosage is reduced. A patient with cervical cancer or kidney stones would not be expected to have altered ability to metabolize drugs so long as no liver damage existed. The patient with renal failure would have altered excretion of the drugs through the renal system but metabolism would not be impacted.

A patient presents to the emergency department with a drug level of 50 units/mL. The half-life of this drug is 1 hour. With this drug, concentrations above 25 units/mL are considered toxic and no more drug is given. How long will it take for the blood level to reach the non-toxic range?

30 minutes

1 hour

2 hours

3 hours

Ans:

B Feedback: Half-life is the time required for the serum concentration of a drug to decrease by 50%. After 1 hour, the serum concentration would be 25 units/mL (50/2) if the body can properly metabolize and excrete the drug. After 2 hours, the serum concentration would be 12.5 units/mL (25/2) and reach the nontoxic range. In 30 minutes the drug level would be 37.5 units/mL, whereas in 3 hours the drug level would be

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

6.25. 3.

A patient has recently moved from Vermont to Southern Florida. The patient presents to the clinic complaining of dizzy spells and weakness. While conducting the admission assessment, the patient tells the nurse that he have been on the same antihypertensive drug for 6 years and had stable blood pressures and no adverse effects. Since his move, he has been having problems and he feels that the drug is no longer effective. The clinic nurse knows that one possible reason for the change in the effectiveness of the drug could be what?

The impact of the placebo effect on the patient’s response.

The accumulative effect of the drug if it has been taken for many years.

The impact of the warmer environment on the patient’s physical status.

Problems with patient compliance with the drug regimen while on vacation.

Ans:

C Feedback: Antihypertensive drugs work to decrease the blood pressure. When a patient goes to a climate that is much warmer than usual, blood vessels dilate and the blood pressure falls. If a patient is taking an antihypertensive drug and moves to a warmer climate, there is a chance that the patient’s blood pressure will drop too low, resulting in dizziness and feelings of weakness. Even mild dehydration could exacerbate these effects. Most antihypertensives are metabolized and excreted and do not accumulate in the body. Patients must be very compliant with their drug regimen on vacation. After several years on an antihypertensive drug, the effects of that drug are known; therefore, the placebo effect should not be an issue.

An important concept taught by the nurse when providing medication teaching is the need to provide a complete list of medications taken to health care providers to avoid what?

Spending large amounts of money on medications

Allergic reactions to medications

Drugdrug interactions

Critical concentrations of medications in the body

Ans:

C Feedback: It is important that all health care providers have a complete list of the patient’s medications to avoid drugdrug interactions caused by one provider ordering a medication, unaware of another medication the

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

patient is taking that could interact with the new prescription. Using the same pharmacist for all prescriptions will also help to prevent this from happening. Informing the provider of all medications taken will not reduce costs of medications, which is best accomplished by requesting generic medications. Allergies should be disclosed to all health care providers as well, but this is not why it is important to provide a complete list of medications taken. Critical concentrations are desirable because that is the amount of drug needed to cause a therapeutic effect, or, in other words, to have the effect the drug is prescribed for. 5.

A pharmacology student asks the instructor what an accurate description of a drug agonist is. What is the instructor’s best response?

A drug that reacts with a receptor site on a cell preventing a reaction with another chemical on a different receptor site

A drug that interferes with the enzyme systems that act as catalyst for different chemical reactions

A drug that interacts directly with receptor sites to cause the same activity that a natural chemical would cause at that site

A drug that reacts with receptor sites to block normal stimulation, producing no effect

Ans:

C Feedback: Agonists are drugs that produce effects similar to those produced by naturally occurring neurotransmitters, hormones, or other substances found in the body. Noncompetitive antagonists are drugs that react with some receptor sites preventing the reaction of another chemical with a different receptor site. Drugenzyme interactions interfere with the enzyme systems that stimulate various chemical reactions.

A nurse is caring for a patient who has been receiving a drug by the intramuscular route but will receive the drug orally after discharge. How does the nurse explain the increased dosage prescribed for the oral dose?

Passive diffusion

Active transport

Glomerular filtration

First-pass effect

Ans:

D Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The first-pass effect involves drugs that are absorbed from the small intestine directly into the portal venous system, which delivers the drug molecules to the liver. After reaching the liver, enzymes break the drug into metabolites, which may become active or may be deactivated and readily excreted from the body. A large percentage of the oral dose is usually destroyed and never reaches tissues. Oral dosages account for the phenomenon to ensure an appropriate amount of the drug in the body to produce a therapeutic action. Passive diffusion is the major process through which drugs are absorbed into the body. Active transport is a process that uses energy to actively move a molecule across a cell membrane and is often involved in drug excretion in the kidney. Glomerular filtration is the passage of water and water-soluble components from the plasma into the renal tubule. 7.

A nurse is working as a member of a research team involved in exploring the unique response to drugs each individual displays based on genetic make-up. What is this area of study is called?

Pharmacotherapeutics

Pharmacodynamics

Pharmacoeconomics

Pharmacogenomics

Ans:

D Feedback: Pharmacogenomics is the area of study that includes mapping of the human genome. In the future, medical care and drug regimens may be personally designed based on a patient’s unique genetic makeup. Pharmacotherapeutics is the branch of pharmacology that deals with the uses of drugs to treat, prevent, and diagnose disease. Pharmacodynamics involves how a drug affects the body. Pharmacoeconomics includes the costs involved in drug therapy.

The nurse uses what term to describe the drug level required to have a therapeutic effect?

Critical concentration

Dynamic equilibrium

Selective toxicity

Active transport

Ans:

A Feedback: A critical concentration of a drug must be present before a reaction occurs within the cells to bring about the desired therapeutic effect. A dynamic equilibrium is obtained from absorption of a drug from

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

the site of drug entry, distribution to the active site, metabolism in the liver, and excretion from the body to have a critical concentration. Selective toxicity is the ability of a drug to attach only to those systems found in foreign cells. Active transport is the process that uses energy to actively move a molecule across a cell membrane and is often involved in drug excretion in the kidney. 9.

A nurse is caring for a patient who is supposed to receive two drugs at the same time. What is the nurse’s priority action?

Wash her hands before handling the medications.

Consult a drug guide for compatibility.

Question the patient concerning drug allergies.

Identify the patient by checking the armband and asking the patient to state his name.

Ans:

B Feedback: A nurse should first consult a drug guide for compatibility when two or more drugs are being given at the same time. After compatibility is determined the medication can be administered. The nurse will perform hand hygiene, check for patient allergies, and ensure the right patient receives the medication by using two identifiers.

10.

The nurse is talking with a group of nursing students who are doing clinical hours on the unit. A student asks if all intramuscular (IM) drugs are absorbed the same. What factor would the floor nurse tell the students to affect absorption of the IM administration of drugs?

Perfusion of blood to the subcutaneous tissue

Integrity of the mucous membranes

Environmental temperature

Blood flow to the gastrointestinal tract

Ans:

C Feedback: A cold environmental temperature can cause blood vessels to vasoconstrict and decreases absorption or in a hot environment vasodilate and increase absorption of IM medications. Blood flow to the subcutaneous tissues interferes with subcutaneous injection and blood flow to the gastrointestinal (GI) tract causes alterations in absorption for oral medications. The condition of mucous membranes can interfere with sublingual (under the tongue) and buccal (in the cheek) administration of drugs.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

11.

The patient is taking a drug that affects the body by increasing cellular activity. Where does this drug work on the cell?

Receptor sites

Cell membrane

Golgi body

Endoplasmic reticulum

Ans:

A Feedback: Many drugs are thought to act at specific areas on cell membranes called receptor sites. After the receptor site is activated, this in turn activates the enzyme systems to produce certain effects, such as increased or decreased cellular activity, changes in cell membrane permeability, or alterations in cellular metabolism. Receptor sites are generally located on the outside of cells and allow the drug to bypass the cell membrane. The Golgi body and endoplasmic reticulum are not involved in this process.

12.

Several processes enable a drug to reach a specific concentration in the body. Together they are called dynamic equilibrium. What are these processes? (Select all that apply.)

Distribution to the active site

Biotransformation

Absorption from the muscle

Excretion

Interaction with other drugs

Ans:

A, B, D Feedback: The actual concentration that a drug reaches in the body results from a dynamic equilibrium involving several processes: Absorption from the site of entry (can be from the muscle, the gastrointestinal (GI) tract if taken orally, of the subcutaneous tissue if given by that route); Distribution to the active site; biotransformation (metabolism) in the liver; excretion from the body. Interaction with other drugs is not part of the dynamic equilibrium.

13.

A nurse is administering digoxin to a patient. To administer medications so that the drug is as effective

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

as possible, the nurse needs to consider what? A)

Pharmacotherapeutics

Pharmacokinetics

Pharmacoeconomics

Pharmacogenomics

Ans:

B Feedback: When administering a drug, the nurse needs to consider the phases of pharmacokinetics so that the drug regimen can be made as effective as possible. Pharmacogenomics is the area of study that includes mapping of the human genome. Pharmacotherapeutics is the branch of pharmacology that deals with the uses of drugs to treat, prevent, and diagnose disease. Pharmacoeconomics includes all costs involved in drug therapy.

14.

The nurse is explaining how medications work to a group of peers and explains that disruption of a single step in any enzyme system disrupts what?

Cell life

Cell membrane

Cell receptor sites

Cell function

Ans:

D Feedback: If a single step in one of the many enzyme systems is blocked, normal cell function is disrupted. Cell life and cell membrane may be impacted by disruption of some enzymes but not all enzymes. Receptor sites would not be disrupted by disruption in a single step in the enzyme system.

15.

The processes involved in dynamic equilibrium are key elements in the nurse’s ability to determine what?

Dosage scheduling

Amount of solution for mixing parenteral drugs

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Timing of other drugs the patient is taking

How long the patient has to take the drug

Ans:

Feedback: These processes are key elements in determining the amount of drug (dose) and the frequency of dose repetition (scheduling) required to achieve the critical concentration for the desired length of time. The processes in dynamic equilibrium are not key elements in determining the amount of diluents for intramuscular (IM) drugs; they do not aid in the timing of the other drugs the patient is taking or how long the patient has to take the drug. 16.

What factor influences drug absorption?

Kidney function

Route of administration

Liver function

Cardiovascular function

Ans:

B Feedback: Drug absorption is influenced by the route of administration. IV administration is the fastest method; drug absorption is slower when given orally. Kidney function impacts excretion, liver function impacts metabolism, and cardiovascular function impacts distribution.

17.

What does the lipid solubility of the drug influence?

Absorption of the drug

Metabolism of the drug

Excretion of the drug

Distribution of the drug

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Feedback: Factors that can affect distribution include the drug’s lipid solubility and ionization and the perfusion of the reactive tissue. The lipid solubility of a drug does not influence absorption, metabolism, or excretion. 18.

The nursing students are learning about the half-life of drugs. A student asks the instructor to explain half-life. What is the instructor’s best response?

Half-life of a drug is the time it takes for the amount of drug in the body to decrease to half of the peak level it previously achieved.

Half-life is the amount of time it takes for the drug to be metabolized by the body.

Half-life is the amount of time it takes for half of the drug to reach peak level in the body.

Half-life of a drug is the time it takes for the drug to reach half its potential peak level in the body.

Ans:

A Feedback: The half-life of a drug is the time it takes for the amount of drug in the body to decrease to half the peak level it previously achieved. Therefore Options B, C, and D are not correct.

19.

The patient is taking a 2-mg dose of ropinerol XR. The drug has a half-life of 12 hours. How long will it be before only 0.25 mg of this drug remains in the patient’s system?

24 hours

36 hours

48 hours

60 hours

Ans:

B Feedback: The half-life of a drug is the time it takes for the amount of drug in the body to decrease to half of the peak level it previously achieved. At 12 hours there will be 1 mg of the drug available to the body. At 24 hours there will be 0.5 mg; at 36 hours there will be 0.25 mg; at 48 hours there will be 0.125 mg, and at 60 hours there will be 0.0625 mg.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

20.

The patient has a diagnosis of multiple sclerosis and is taking the drug interferon beta-1a (Rebif). The patient takes this drug by subcutaneous injection three times a week. The dosage is 44 mcg per injection. If the patient takes an injection on Monday, how much of the drug would still be in the patient’s system when she takes her next injection on Wednesday, assuming the half-life of the drug is 24 hours?

22 mcg

16.5 mcg

11 mcg

5.5 mcg

Ans:

C Feedback: The half-life of a drug is the time it takes for the amount of drug in the body to decrease to 1 half the peak level it previously achieved. On Tuesday, there would be 22 mcg remaining in the body, so option A is incorrect. On Wednesday 11 mcg would remain, so option C is the correct answer. At 12 hours before taking the next dose on Wednesday, there would be 16.5 mcg remaining. If the injection were not taken on Wednesday, 12 hours after the dose was due, there would be 5.5 mcg remaining.

21.

The patient is a 6-year-old child who is taking 125 mg of amoxicillin every 6 hours. Assuming that the half-life of Amoxicillin is 3 hours, how much Amoxicillin would be in the child’s body at the time of the next administration of the drug?

62.5 mg

46.875 mg

31.25 mg

15.625 mg

Ans:

C Feedback: The half-life of a drug is the time it takes for the amount of drug in the body to decrease to 1 half the peak level it previously achieved. Option A would occur at 3 hours after the original dose of amoxicillin. Option B would occur 4 1/2 hours after the original dose. Option C would occur at 6 hours after the original dose. Option D would occur at 7 1/2 hours after the original dose.

22.

A drug with a half-life of 4 hours is administered at a dosage of 100 mg. How much of the drug will be in the patient’s system 8 hours after administration?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

75 mg

50 mg

37.5 mg

25 mg

Ans:

Feedback: The half-life of a drug is the time it takes for the amount of drug in the body to decrease to 1 half the peak level it previously achieved. Option A would occur 2 hours after administration of the drug. Option B would occur at 4 hours. Option C would occur at 6 hours. Option D would occur at 8 hours after the original administration of the drug. 23.

The nurse administers amoxicillin 500 mg. The half-life of this drug is approximately 1 hour. At what point would the drug level in the body be 62.5 mg if the drug was not administered again?

1 hours after the original dose

2 hours after the original dose

3 hours after the original dose

4 hours after the original dose

Ans:

C Feedback: The half-life of a drug is the time it takes for the amount of drug in the body to decrease to one-half of the peak level it previously achieved. At a dose of 500 mg the drug level would be 250 mg in 1 hour, 125 mg in 2 hours, 62.5 mg in 3 hours, and 31.25 mg in 4 hours so the correct answer is 3 hours.

24.

The nurse is caring for a patient who is receiving gentamicin, 250 mg and fluconazole (Diflucan), 500 mg at the same time. The nurse knows that if these two drugs competed with each other for proteinbinding sites, what would this do?

Make the patient gentamicin deficient

Make the patient fluconazole deficient

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Counteract any positive benefit the drugs would have

Alter the effectiveness of both drugs

Ans:

Feedback: Some drugs compete with each other for protein-binding sites, altering effectiveness or causing toxicity when the two drugs are given together. Nothing in the scenario would indicate that the patient would be either Gentamicin or Diflucan deficient, nor does it indicate that these drugs cannot be given together because they would counteract each other. 25.

The student nurse asks the instructor why a patient with a central nervous system infection is receiving antibiotics that will not cross the bloodbrain barrier. What is the instructor’s most correct response?

A severe infection alters the bloodbrain barrier to allow the drug to cross.

A medication that is water soluble is more likely to cross the blood-brain barrier.

Antibiotics are the exception to the bloodbrain barrier and cross easily.

An infection that spreads outside the central nervous system helps drugs cross the barrier.

Ans:

A Feedback: Effective antibiotic treatment can occur only when the infection is severe enough to alter the bloodbrain barrier and allow antibiotics to cross. Lipid-soluble, not water-soluble, medications cross the bloodbrain barrier more easily and most antibiotics are lipid soluble, so they are not the exception. No matter where the infection originates, drugs must cross the bloodbrain barrier to treat central nervous system infections.

26.

The patient is taking low dose aspirin daily for his heart. The nurse knows only a portion of the medication taken actually reaches the tissue due to what process?

Distribution

First-pass effect

Reduced absorption

Gastrointestinal circulation

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

B Feedback: Drugs that are taken orally are usually absorbed from the small intestine directly into the portal venous system and then delivers these absorbed molecules into the liver, which immediately break the drug into metabolites, some of which are active and cause effects in the body, and some of which are deactivated and can be readily excreted from the body. As a result, a large percentage of the oral dose is destroyed at this point and never reaches the tissues. This process is not caused by distribution, absorption, or gastrointestinal circulation.

27.

What needs to happen to the proteindrug complex for the drugs to reach the cells where the drug can act?

The proteindrug complex must break itself into smaller pieces to enter the capillaries.

The binding site on the protein picks up a chemical to make it soluble in the serum.

The drug must break away from the protein-binding site and float freely.

The drug must be dissolved in the plasma so it can enter the capillaries and then the tissues.

Ans:

C Feedback: Most drugs are bound, to some extent, to proteins in the blood to be carried into circulation. The proteindrug complex is relatively large and cannot enter into capillaries and then into tissues to react. The drug must be freed from the protein’s binding site at the tissues. This occurs without the introduction of another chemical or by dissolving in it plasma.

28.

The nurse is reviewing the results of the patient’s laboratory tests. What must the nurse keep in mind when reviewing these results related to medication administration?

The patient’s emotional response to the disease process

The timing of the last dose of medication relative to when blood was drawn

The possibility of a druglaboratory test interaction

A change in the body’s responses or actions related to the drug

Ans:

C Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The body works through a series of chemical reactions. Because of this, administration of a particular drug may alter results of tests that are done on various chemical levels or reactions as part of a diagnostic study. This druglaboratory test interaction is caused by the drug being given and not necessarily by a change in the body’s responses or actions. The patient’s emotional response or timing of the last dose is not important in drug-laboratory interactions. 29.

A patient has come to the clinic and been diagnosed with Lyme disease. The physician has ordered oral tetracycline. What is important for the nurse to include in the teaching plan about tetracycline? (Select all that apply.)

Do not take the drug with anything high in sodium content to keep from producing a state of hypernatremia in the body.

Do not take the drug with foods or other drugs that contain calcium.

Do not take the drug at the same time you take an iron supplement or with foods that are high in iron content.

Avoid exposure to the sun when taking this drug as it can turn your skin purple.

Avoid eating bananas at the same time you take this drug as the potassium content of the tetracycline can produce hyperkalemia in the body.

Ans:

B, C Feedback: The antibiotic tetracycline is not absorbed from the gastrointestinal (GI) tract if calcium or calcium products (e.g., milk) are present in the stomach. It cannot be taken with iron products because a chemical reaction occurs preventing absorption. Although tetracycline can increase sun sensitivity, it does not turn the skin purple. Patients who take tetracycline do not need to avoid eating bananas or foods that are high in potassium.

30.

A nurse is caring for a patient taking multiple drugs and is concerned about a possible drugdrug interaction. What is the nurse’s first and best means of avoiding this problem?

Consult a drug guide.

Call the pharmacist.

Contact the provider.

Ask another nurse.

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Whenever two or more drugs are being given together, first consult a drug guide for a listing of clinically significant drugdrug interactions. Sometimes problems can be avoided by staggering the administration of the drugs or adjusting their dosages. Consulting the pharmacist is not wrong, but it would not be the first action to take. The nurse holds responsibility for his or her own practice so asking a health care provider or another nurse is based on the assumption that that professional is knowledgeable about all drugdrug interactions, which is likely not the case. 31.

The nurse promotes optimal drug effectiveness by doing what? (Select all that apply.)

Incorporate basic history and physical assessment factors into the plan of care.

Evaluate the effectiveness of drugs after they have been administered.

Modify the drug regimen to modify adverse or intolerable effects.

Minimize the number of medications administered to patients.

Examine factors known to influence specific drugs if they are to be effective.

Ans:

A, B, C, E Feedback: Incorporate basic history and physical assessment factors into any plan of care so that obvious problems can be identified and handled promptly. If a drug simply does not do what it is expected to do, further examine the factors that are known to influence drug effects. Frequently, the drug regimen can be modified to deal with that influence. Minimizing the number of medications administered is usually not an option because each drug is ordered for a reason of necessity for the patient.

32.

The nurse administers a specific medication to an older adult patient every 4 hours. The patient has a history of chronic renal failure. Why would this patient be at risk for toxic drug levels?

Cumulative effect

First-pass effect

Drug interactions

Cross-tolerance effect

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

If a drug is taken in successive doses at intervals that are shorter than recommended, or if the body is unable to eliminate a drug properly, the drug can accumulate in the body, leading to toxic levels and adverse effects. This is a cumulative effect. First-pass effect addresses the reduction of available drug when taken orally due to metabolism in the liver before the drug reaches the bloodstream. Drug interactions occur when taken with other drugs, food, or complementary alternative therapies. Crosstolerance is resistance to drugs within the same class. 33.

The patient, diagnosed with cancer, is receiving morphine sulfate (a potent narcotic pain reliever) to relieve cancer pain. Approximately every 7 days the medication is no longer effective in controlling the patient’s pain and a larger dose is needed to have the same effect. How might the nurse explain why this is happening?

Tolerance

Cumulation

Interactions

Addiction

Ans:

A Feedback: The body may develop a tolerance to some drugs over time. Tolerance may arise because of increased biotransformation of the drug, increased resistance to its effects, or other pharmacokinetic factors. When tolerance occurs, the amount of the drug no longer causes the same reaction. Therefore, increasingly larger doses are needed to achieve a therapeutic effect. Cumulative effect occurs when the drug is not properly eliminated and more of the drug is administered, resulting in toxic levels accumulating. Interactions occur when the drug reacts badly with another substance such as food, another drug, or an alternative or complementary therapy. Addiction is the psychological need for a substance.

34.

While administering a medication that the nurse has researched and found to have limited effectiveness, the patient tells the nurse, I have read all about this drug and it is such a wonder drug. I’m so lucky my doctor prescribed it because I just know it will treat my problem. The nurse suspects this drug will be more effective than usual for this patient because of what effect?

Cumulative effect

First-pass effect

Placebo effect

Cross-tolerance effect

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Feedback: A drug is more likely to be effective if the patient thinks it will work than if the patient believes it will not work. This is called the placebo effect. If a drug is taken in successive doses at intervals that are shorter than recommended, or if the body is unable to eliminate a drug properly, the drug can accumulate in the body, leading to toxic levels and adverse effects. This is a cumulative effect. Firstpass effect addresses the reduction of available drug when taken orally due to metabolism in the liver before the drug reaches the bloodstream. Cross-tolerance is resistance to drugs within the same class. 35.

The nurse administers an intravenous medication with a half-life of 24 hours but recognizes what factors in this patient could extend the drug’s half-life? (Select all that apply.)

Gastrointestinal disease

Kidney disease

Liver disease

Cardiovascular disease

Route of administration

Ans:

B, C, D Feedback: Kidney disease could slow excretion and extend the drug’s half-life. Liver disease could slow metabolism resulting in an extended half-life. Cardiovascular disease could slow distribution resulting in a longer half-life. Gastrointestinal disease would not impact half-life because the medication was injected directly into the bloodstream. Route of administration would not extend half-life because IV injection eliminates the absorption step in the process.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Chapter 03 - Toxic Effects of Drugs

A nurse is planning patient teaching about a newly prescribed drug. What is a priority teaching point included by the nurse to improve compliance and safety?

List of pharmacies where the drug can be obtained

Measures to alleviate any discomfort associated with adverse effects

The cost of the brand name drug compared with the generic form

Statistics related to Phase III testing for the prescribed drug

Ans:

B Feedback: If a patient is aware of certain adverse effects and how to alleviate or decrease the discomfort, he or she is more likely to continue taking the medication. A list of pharmacies can be useful information but will not improve safety or compliance. Knowing the cost of the brand name versus the generic form could also be helpful to the patient. However, a substitution may not be allowable and the cost of a drug does not improve patient safety. Most patients are not concerned with the statistics related to drug testing and it would not improve compliance or safety even if the patient was interested in the information.

A patient presents at the clinic complaining of vaginal itching and a clear discharge. The patient reports to the nurse that she has been taking an oral antibiotic for 10 days. The nurse is aware that the patient is experiencing what?

An adverse reaction from the antibiotic

A drug toxicity effect of the antibiotic

An overdose of the drug that is damaging to more than one body system

A superinfection caused by the antibiotic, which has destroyed normal flora

Ans:

D Feedback: Superinfections often occur with antibiotic use because the drug kills normal bacterial flora. This is not a result of toxic levels of the antibiotic, but rather an effect of the medication that has killed normal flora, which it is designed to do. Vaginal itching and a clear discharge are not considered adverse effects of an antibiotic. An overdose of a drug that damages more than one body systems is considered

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

drug poisoning. 3.

A 42-year-old male patient is brought to the emergency department by ambulance. The patient is in distress. The nurse suspects an anaphylactic reaction resulting from taking oral penicillin. What assessment findings are important in making this diagnosis?

Blood pressure (BP): 186/100, difficulty breathing

Hematocrit (Hct): 32%, decreased urine output

Temperature: 102º, swollen joints

Profuse sweating, Blood Pressure: 92/58

Ans:

A Feedback: An anaphylactic reaction is an immune reaction that causes a massive release of histamine, which results in edema and swelling that can lead to respiratory distress and increased blood pressure. A decreased hematocrit and decreased urine output suggests a cytotoxic reaction. An increased temperature and swollen joints could suggest serum sickness. Profuse sweating and decreased blood pressure may indicate cardiac-related issues.

A patient with seasonal allergies is taking an antihistamine to relieve itchy, watery eyes, and a runny nose. When planning teaching for this patient, the nurse would include what teaching point?

Advise the patient to limit fluid intake to dry out mucous membranes.

Advise the patient to avoid driving or operating machinery.

Advise the patient to report strange dreams or nightmares.

Advise the patient to decrease dietary fat.

Ans:

B Feedback: An adverse effect of antihistamines is drowsiness, so that injury to the patient or others can occur if driving or operating machinery. An increase in fluids would be indicated to help keep nasal membranes moist. It is common for dreams to occur when taking medication and it is not necessary to report them. Dietary fat should not interfere with the drug metabolism of antihistamines.

A nurse is providing teaching to a group of patients who are beginning drug therapy for acquired immunodeficiency syndrome (AIDS). What should be included in her instructions to the group?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Take your medications as directed. Poisoning occurs with overdosage causing damage to more than one body system.

Renal injury results from first-pass effect when the drug is excreted from the system.

A blood dyscrasia due to drug therapy can be serious. Call us if your skin looks yellowish or you experience itching.

Most drugs are metabolized in the liver and the first indication of damage is dark red papules, which should be reported immediately.

Ans:

Feedback: Poisoning resulting from overdosage can lead to the potential for fatal reactions when more than one body system is affected. Liver, not kidney, injury can be caused by the first-pass effect and can cause the skin to have a yellow appearance. Most drugs are metabolized in the liver but liver damage causes jaundice, manifested as a yellow tinge to the skin and sclera. Dark red papules appearing on limbs are characteristic of Stevens-Johnson syndrome, a potentially fatal erythema multiforme exudativum, which should be reported but is not due to liver damage. 6.

The pharmacology instructor is talking to the nursing students about potassium-sparing diuretics and how they can lead to hyperkalemia, indicated by what assessment finding?

Urine output of 1,500 mL/24 hours

Blood pressure of 98/60

Potassium level of 5.9 mEq/L

Calcium level of 11.4 mg/dL

Ans:

C Feedback: The normal range of serum potassium for an adult is 3.5 to 5.0 mEq/L. A level higher than 5.0 mEq/L can indicate hyperkalemia. Normal urinary output is between 1,500 and 2,000 cc per day. Urinary output below 1,000 mL per day would include oliguria and would indicate hyperkalemia. A decrease in blood pressure and pulse can indicate hypokalemia. Hyperkalemia refers to an elevated potassium level and not an elevated calcium level.

An 80-year-old patient presents at the clinic for a follow-up appointment. She is taking a macrolide antibiotic and is experiencing tinnitus. The nurse is talking with family members about home care for the patient. What should the nurse include in her instructions regarding home care?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Keep the patient in a prone position when in bed.

Eliminate salt from the patient’s diet.

Provide protective measures to prevent falling or injury.

Monitor exposure to sunlight.

Ans:

Feedback: Macrolide antibiotics can cause severe auditory nerve damage, which can cause dizziness, ringing in the ears (tinnitus), and loss of balance and hearing. The patient would be at high risk for injury due to falls. Usually a person who is dizzy is unable to lie flat and needs to recline with the head elevated. Salt and sunlight are not a component of this patient’s presenting complaint. 8.

Oral antidiabetic drugs can cause alterations in glucose metabolism. Patients who are taking these drugs would need to be observed for what?

Increased urination

Deep Kussmaul’s respirations

Thirst and hot or flushed skin

Confusion and lack of coordination

Ans:

D Feedback: Antidiabetic medications decrease blood glucose levels. If levels fall too low, symptoms of hypoglycemia would include confusion and lack of coordination. Elevated blood glucose levels can occur when the patient does not take the medications. With inadequate dosage, hyperglycemia can occur, resulting in increased urination in an attempt to eliminate serum glucose, deep Kussmaul’s respirations to reduce blood pH by eliminating carbon dioxide, thirst, and hot or flushed skin.

A patient is taking chloroquine (Aralen) for rheumatoid arthritis. What problem reported by the patient would the nurse suspect may be an adverse reaction of the medication?

I have to urinate all the time.

Sometimes I have blurred vision.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

I have tingling in my arms and legs.

Sometimes I feel like I am off balance.

Ans:

Feedback: Chloroquine (Aralen) can cause ocular toxicity with blurring of vision, color vision changes, corneal damage, and blindness. Increased urination, tingling, and numbness are signs of hyperkalemia and hypokalemia. Loss of balance can be caused by auditory damage due to drug toxicity. 10.

A 68-year-old patient who must take antihistamines for severe allergies is planning a vacation to Mexico. The nurse will encourage the patient to do what?

Avoid sightseeing during the hottest part of the day.

Discontinue the antihistamines if he becomes extremely restless.

Decrease the dosage of the drugs if he experiences excessive thirst.

Continue taking the antihistamines even if he begins to hallucinate.

Ans:

A Feedback: Antihistamines can cause anticholinergic effects, which would result in decreased sweating and place the patient at high risk for heat stroke. Avoiding the hottest part of the day will help prevent dehydration and heat prostration. Extreme restlessness could indicate Parkinson-like syndrome not usually associated with antihistamines. Excessive thirst is characteristic of hyperglycemia. Hallucinations are associated with drugs that affect neurologic functioning. Further, nurses should never tell patients to decrease or discontinue a drug unless the prescriber has instructed them to do so.

11.

A 77-year-old man is brought to the clinic by his daughter for a routine follow-up appointment. The daughter tells the nurse that her father is only taking half the prescribed dosage of several of his medications. What effect would the nurse explain could result from this behavior?

Increased risk of primary actions

Dermatologic reaction

Superinfection

Reduced therapeutic effect

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

D Feedback: Taking too little of the medication would mean that therapeutic levels are not being reached and the drugs will be less effective at lower dosages. Primary actions are the result of overdose, which is not the case in this patient who is taking too little of the drug. Dermatologic reactions are not likely if the patient is taking too little of the drug unless the drug is treating a dermatologic problem, which is not indicated by the question. Superinfection would only result if the patient was taking an antibiotic, which is not indicated by the question.

12.

A patient with Parkinson’s disease is taking an anticholinergic drug to decrease the tremors and drooling caused by the disease process. The patient complains that he is having trouble voiding. The nurse would explain that this is what?

A hypersensitive action of the drug

A primary action of the drug

An allergic action of the drug

A secondary action of the drug

Ans:

D Feedback: Sometimes the drug dosage can be adjusted so that the desired effect is achieved without producing undesired secondary reactions. But sometimes this is not possible, and the adverse effects are almost inevitable. In such cases, the patient needs to be informed that these effects may occur and counseled about ways to cope with the undesired effects. The situation described is not a hypersensitivity reaction that would indicate an allergic reaction, a primary reaction that would be excessive therapeutic response, or an allergic reaction to the drug.

13.

The nurse is assessing a patient new to the clinic. The patient says she is allergic to penicillin. What would be the nurse’s appropriate next action?

Ascertain the exact nature of the patient’s response to the drug.

Document the patient is allergic to penicillin.

Mark the patient’s chart in red that she has a penicillin allergy.

Continue to assess the patient for other allergies.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

A Feedback: Ask additional questions of patients who state that they have a drug allergy to ascertain the exact nature of the response and whether it is a true drug allergy. Patients may confuse secondary actions of the drug with an allergy. Only after it was determined the action was truly an allergy would the nurse document the allergy, mark the patient’s chart, and continue to assess for other allergies.

14.

The pharmacology instructor is discussing the adrenergic drug ephedrine with the nursing students and lists an adverse reaction of this drug as what?

Bronchoconstriction

Hyperglycemia

Cardiac arrhythmias

Severe constipation

Ans:

B Feedback: Ephedrine (generic), a drug used as a bronchodilator to treat asthma and relieve nasal congestion, can break down stored glycogen and cause an elevation of blood glucose by its effects on the sympathetic nervous system. Ephedrine does not cause bronchoconstriction, cardiac arrhythmias, or severe constipation.

15.

The nurse needs to consider teratogenic effects of medications when caring for what population of patients?

Older adults

Patients with a history of cancer

Children

Young adult women

Ans:

D Feedback: A teratogen is a drug that can harm the fetus or embryo so the nurse would consider the teratogenic

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

properties of medications when caring for woman of child-bearing age including adolescents and young adult women. Teratogens have no impact on older adults or children. Carcinogens are chemicals that cause cancer. 16.

The nurse is caring for a patient receiving an antineoplastic medication who reports fever, chills, sore throat, weakness, and back pain. What type of adverse effect does the nurse suspect this patient is experiencing?

Dermatologic reaction

Blood dyscrasia

Electrolyte imbalance

Superinfection

Ans:

B Feedback: Symptoms of blood dyscrasias include fever, chills, sore throat, weakness, back pain, dark urine, decreased hematocrit (anemia), low platelet count (thrombocytopenia), low white blood cell count (leukopenia), and a reduction of all cellular elements of the complete blood count (pancytopenia). Dermatologic reactions would be reflected in skin alterations, electrolyte imbalances would result in differing symptoms depending on the electrolyte involved but would not cause chills and fever, and a superinfection could cause a fever but would not cause a sore throat, weakness, or back pain unless the infection involved those body parts.

17.

The pharmacology instructor explains to students that adverse effects can be extensions of what?

Primary action of a drug

Anaphylaxis

Secondary action of a drug

Anticholinergic responses to the drug

Ans:

A Feedback: Primary action adverse effects are extensions of the therapeutic action and are usually the result of overdosage, essentially too much of the therapeutic effect. Anaphylaxis is not an extension of the therapeutic action of the drug but a histamine reaction to an allergen. Secondary actions of a drug are negative effects of the drug that occur even when the drug is in the therapeutic range. Anticholinergic responses occur in response to drugs that block the parasympathetic nervous system.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

18.

A student nurse asks her study group how to define a drug allergy. What would be the peer group’s best response?

A second effect of the body to a specific drug

The formation of antibodies to a drug protein causing an immune response when the person is next exposed to that drug.

A serum sickness caused by a reaction to a drug

Immediate systemic reaction to the drug when exposed to the drug the first time.

Ans:

B Feedback: A drug allergy is the formation of antibodies to a drug or drug protein; causes an immune response when the person is next exposed to that drug. A drug allergy does not occur at the first exposure to a drug. A second action of a specific drug is an adverse response that the drug causes in addition to the therapeutic effect. Serum sickness is one type of allergic reaction but does not define allergic reaction. An immediate systemic reaction to a drug, usually not on first exposure, is an anaphylactic reaction.

19.

The home health nurse is caring for an elderly patient with benign prostatic hypertrophy. An anticholinergic drug has been prescribed. What would be the nurse’s priority teaching point for this patient?

Urinary incontinence may develop.

Bladder hypertonia may develop.

An increased dosage may be required.

Empty the bladder before taking the drug.

Ans:

D Feedback: A patient with an enlarged prostate who takes an anticholinergic drug may develop urinary retention or even bladder paralysis when the drug’s effects block the urinary sphincters, so anticholinergic drugs are avoided whenever possible. However, if the medication is needed, the patient must be taught to empty the bladder before taking the drug. A reduced dosage also may be required to avoid potentially serious effects on the urinary system but this would not be a teaching point for the patient because the provider will make that decision. Hypotonia, not hypertonia, is more likely to occur. Urinary incontinence is not a likely effect in this case.

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20.

The Kardex record of a male patient who is prescribed antihistamines for treating an allergy reads as follows: Age: 32; Profession: Carpenter; Lifestyle & diet: Lives alone, average smoker, nonalcoholic, no food preferences, practices yoga; Medical history: Suffers from hay fever, recent urinary tract infection that has been treated successfully. What information from the Kardex is likely to have the greatest implication in educating the patient about antihistamine administration?

The patient’s age

The patient’s smoking habit

The patient’s profession

The patient’s medical history

Ans:

C Feedback: Most antihistamines cause drowsiness, so the nurse should advise the patient not to operate machinery or perform tasks that require alertness when taking antihistamines (e.g., climbing ladders, working on rooftops, standing on iron supports at the top of a building). Because the patient is not an older adult, his age has no implications on the therapy. Although encouraging the patient to make better lifestyle choices is an important part of the patient’s plan of care, this information is not related to administration of antihistamines. There is nothing in the documented medical history that is significant to antihistamine use.

21.

The nurse is caring for a patient who experienced a severe headache. When the prescribed number of over-the-counter pain relievers did not work the patient said she took double the dosage an hour later. The nurse recognizes this patient is at greatest risk for what?

An allergic reaction

Anaphylactic reaction

Poisoning

Sedative effects

Ans:

C Feedback: This patient has taken an overdosage of the medication. Poisoning occurs when an overdose of a drug damages multiple body systems, leading to the potential for fatal reactions. Allergic and anaphylactic reactions can occur with any drug administration but this is not the patient’s greatest risk. More

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

information about the exact type of medication would be needed to determine whether sedative effects are likely. 22.

What classification of drug allergy would be described as an immune system reaction to injected proteins used to treat immune conditions?

A cytotoxic reaction

Serum sickness

A delayed reaction

An anaphylactic reaction

Ans:

B Feedback: Serum sickness is an immune system reaction to certain medications, injected proteins used to treat immune conditions, or antiserum, the liquid part of blood that contains antibodies that help protect against infectious or poisonous substances. An allergic reaction can occur with any drug, not just those containing protein. Anaphylaxis is an acute, systemic, life-threatening allergic reaction. A cytotoxic reaction is one in which antibodies circulate and attack antigens on cell sites, causing death of that cell.

23.

Why does the nurse need to be alert for any indication of an allergic reaction in patients?

To obtain early warning of noncompliance in drug therapy

To increase the effectiveness of a specific medication

To maintain the patient’s safety during drug therapy

To reduce the risk of adverse effects during drug therapy

Ans:

C Feedback: Being alert to adverse effectswhat to assess and how to intervene appropriatelycan increase the effectiveness of a drug regimen, provide for patient safety, and improve patient compliance. Indications of allergic reactions would not indicate noncompliance or improve effectiveness of a specific medication. Indications of allergic reaction would indicate an adverse effect and would not reduce the risk.

24.

The nurse administers erythromycin, a drug that is known to irritate mucosa in the stomach lining. When the patient reports abdominal discomfort after taking the medication, the nurse would classify

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

this discomfort as what type of adverse effect? A)

Primary action

Secondary action

Hypersensitivity reaction

Allergic reaction

Ans:

D Feedback: Secondary actions are those actions that occur as a result of taking a medication but do not fall under the category of therapeutic action and are often negative. This patient is experiencing a secondary action of erythromycin. Primary actions would be extensions of therapeutic action. Hypersensitivity reaction would be an excessive response to either the primary or secondary effects of a drug. An allergic reaction would be an immune response to the drug.

25.

The nurse administers antipsychotic medications to the patient who has taken these same drugs for many years. What signs and symptoms would the nurse attribute to secondary actions of the drug? (Select all that apply.)

Muscular tremors

Drooling

Changes in gait

Yellow discoloration of skin and sclera

Fine red rash on the trunk

Ans:

A, B, D Feedback: Drugs that affect the dopamine levels in the brain (e.g., antipsychotic drugs), cause a syndrome that resembles Parkinson’s disease including lack of activity, akinesia, muscular tremors, drooling, changes in gait, rigidity, extreme restlessness or jitters (akathisia), or spasms (dyskinesia). Yellow discoloration of the skin and sclera indicate jaundice and would suggest liver damage. A fine red rash on the trunk would be a dermatologic reaction unrelated to an antipsychotic agent’s secondary effects.

26.

The nurse is acting as the triage nurse in the emergency department when a 16-year-old boy is brought in by his friends. The patient is in respiratory distress, he is vomiting, and blood is noted in the vomitus.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

He is somnolent and his electrocardiogram shows an arrhythmia. The boy’s friends tell you he was taking a bunch of little green pills he got from the cupboard at his grandparent’s house. The nurse suspects what? A)

Overdose of sleeping pills

Poisoning

Anaphylactic shock

Allergic reaction to Dyazide

Ans:

B Feedback: Poisoning occurs when an overdose of a drug damages multiple body systems, leading to the potential for fatal reactions. The situation described does not indicate what was contained in the little green pills so it is not possible to say whether the drugs were sedatives or triamterene and hydrochlorothiazide (Dyazide). The symptoms do not indicate an anaphylactic reaction, which would not normally include bloody vomitus.

27.

The patient with diabetes is also taking ephedrine to treat asthma that causes her blood sugar to increase. The patient asks the nurse, Why does this medication make my blood sugar go up? What is the nurse’s best response?

The active ingredient in ephedrine is mixed with sugar.

Ephedrine is a placebo containing only sugar.

Stored glycogen is broken down by ephedrine, which is causing higher blood sugar levels.

Insulin is inactivated by ephedrine so it cannot work to control sugar levels.

Ans:

C Feedback: Ephedrine breaks down stored glycogen, which then enters the bloodstream as glucose and causes an increase in serum blood glucose, or blood sugar, levels. Ephedrine is not mixed with sugar and is not a placebo. Ephedrine has no effect on insulin.

28.

The nurse is writing a plan of care for a patient who is exhibiting Parkinson-like syndrome. What would be an appropriate intervention if, on assessing the patient, the nurse finds the patient is having difficulty swallowing?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Thicken all liquids.

Keep the patient NPO (not taking anything orally).

Give only soft or pureed foods.

Provide small, frequent meals.

Ans:

Feedback: Provide small, frequent meals if swallowing becomes difficult. Keeping the patient NPO would be inappropriate because these effects often result from medications that will be taken throughout the patient’s life. Soft or pureed foods are often more difficult to swallow than more rigid foods. Thickening liquids would only be necessary if the dysphagia, or difficulty swallowing, continued to progress. 29.

The post-anesthesia care unit nurse is serving a patient after a right knee arthroscopy. As the patient begins to wake up from anesthesia, the nurse assesses rigidity, involuntary movements, hyperthermia, and tachycardia. What would the nurse suspect is causing these effects?

Neuroleptic malignant syndrome

Parkinson-like syndrome

Malignant tachycardia

Anaphylactic shock

Ans:

A Feedback: Neuroleptic malignant syndrome is a generalized syndrome that includes extrapyramidal symptoms such as slowed reflexes, rigidity, involuntary movements; hyperthermia; autonomic disturbances (e.g., hypertension, fast heart rate); fever may be noted as well. This is most often seen after administering general anesthesia or drugs with central nervous system (CNS) effects. This syndrome was once known as malignant hyperthermia. These symptoms are not consistent with Parkinson-like syndrome or anaphylactic shock. Malignant tachycardia is a distracter.

30.

A patient is admitted to the intensive care unit with hyperkalemia. The nurse caring for the patient knows that the most severe adverse effect of hyperkalemia is what? Renal failure

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Cardiac emergency

Liver failure

Respiratory distress

Ans:

Feedback: Monitor for cardiac irregularities because potassium is an important electrolyte in the action potential, needed for cell membrane stability. When potassium levels are too high, the cells of the heart become very irritable and rhythm disturbances can occur. Be prepared for a possible cardiac emergency. Hyperkalemia is often found in the patient with renal failure. Liver failure and respiratory distress are not generally caused by hyperkalemia. 31.

The nurse administers an anticholinergic medication to the patient. When assessing this patient, what finding will the nurse consider a secondary effect of the drug?

Nasal congestion

Tachycardia

Hyperthermia

Profuse sweating

Ans:

A Feedback: Anticholinergic secondary effects include dry mouth, altered taste perception, dysphagia, heartburn, constipation, bloating, paralytic ileus, urinary hesitancy and retention, impotence, blurred vision, cycloplegia, photophobia, headache, mental confusion, nasal congestion, palpitations, decreased sweating, and dry skin. Tachycardia, hyperthermia, and profuse sweating would not be expected findings or consistent with anticholinergic effects and would require further assessment.

32.

Before administering a macrolide antibiotic the nurse would question the order for what patient?

An 82-year-old woman with hypertension

A 12-year-old boy with hearing loss

A 30-year-old pregnant patient

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

A 51-year-old man after myocardial infarction

Ans:

Feedback: Macrolide antibiotics can cause severe auditory nerve damage so the nurse would question administration of this drug to the child with hearing loss because another antibiotic may be indicated to preserve remaining hearing. This drug is not contraindicated in older adults, although a lower dosage may be indicated. It may safely be given in pregnancy and after myocardial infarction. 33.

What cardiac effect would the nurse be prepared to see in the patient with an extremely high potassium level?

Arrhythmia

Tachycardia

Sudden death

Bradycardia

Ans:

A Feedback: Elevated potassium levels irritate cardiac cells and increase the likelihood of a cardiac arrhythmia. Tachycardia, sudden death, and bradycardia would be the result of an arrhythmia if they were to occur.

34.

The nurse administers a loop diuretic to the patient. In addition to sodium and water, what other electrolyte would the nurse expect to be excreted in significant amounts?

Calcium

Magnesium

Potassium

Zinc

Ans:

C Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Loop diuretics increase excretion of sodium, water, and potassium most significantly. Although other electrolytes may be excreted, loss of magnesium, calcium, and zinc are usually not significant. 35.

The nurse administers a medication to the patient that induces the secondary action of hypoglycemia. What organ will be most acutely impacted by inadequate circulating glucose?

Brain

Heart

Lungs

Skin

Ans:

A Feedback: While all cells require glucose to function, the brain uses the greatest amount. As a result, hypoglycemia has the greatest impact on the brain, which explains why hypoglycemia has so many neurological signs and symptoms including fatigue, drowsiness, anxiety, headache, shaking, lack of coordination, numbness and tingling of the mouth, tongue, and /or lips; confusion, and in severe cases, seizures or coma may occur because the brain cannot function without adequate supplies of glucose.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Chapter 04 - The Nursing Process in Drug Therapy and Patient Safety

A 70-year-old patient has just received a drug that can cause sedation. What would be the priority nursing diagnosis for this patient?

Noncompliance: Cost of the drug

Deficient knowledge: Unfamiliar with drug therapy

Risk for injury: Related to adverse effects of the drug

Ineffective health maintenance: Need for medication

Ans:

C Feedback: Because of the patient’s age and that the medication causes sedation, the highest priority nursing diagnosis is related to maintaining the patient’s safety. Safety for the patient is the nurse’s number one concern. There is nothing indicated related to the cost of the drug or the risk of noncompliance for this patient. Deficient knowledge will need to be addressed but it is not the priority when compared with patient safety. There is no indication the patient’s need for this medication is related to an ineffective health maintenance issue.

What is the responsibility of the nurse related to the patient’s drug therapy? (Select all that apply.)

Teaching the patient how to cope with therapy to ensure the best outcome

Providing therapy as well as medications

Evaluating the effectiveness of therapy

Altering the drug regimen to optimize outcome

Recommending appropriate over-the-counter medications to treat adverse effects of prescription drug therapy

Ans:

A, B, C Feedback: A nurse is, therefore, a key health care provider who is in a position to assess the whole patient, to administer therapy as well as medications, to teach the patient how best to cope with the therapy to ensure the most favorable outcome, and to evaluate the effectiveness of the therapy. Nurses do not alter

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

drug therapy or recommend over-the-counter medications because prescribing is outside the nurse’s scope of practice. 3.

The nurse is gathering assessment data from a medication history of a 38-year-old man with four children. What assessment information would be most important in providing care for this patient?

The medication history of the patient’s mother and/or father

The name of the patient’s pharmacy

Insurance, financial support, and stability for the patient and his family

The last time the patient was hospitalized

Ans:

C Feedback: In this situation, insurance, financial support, and stability would be the most important data and may determine compliance with future drug therapy. The medication history of the patient’s parents could indicate a pattern of overall attitude about drug therapy but is not the priority concern. The last time the patient was hospitalized could indicate whether the patient seeks medical care when appropriate or if he self-medicates, contributing to the nurse’s knowledge of this individual but this is not the priority concern. The name of the pharmacy would be unnecessary unless the nurse anticipates having to call a prescription in to the pharmacy for the prescriber.

During what phase of the nursing process would the nurse be required to consider the efficacy of nursing interventions related to drug therapy?

Assessment

Nursing diagnosis

Interventions

Evaluation

Ans:

D Feedback: Evaluation allows the nurse to review what has changed since intervening to determine whether the nursing care has had a positive, therapeutic effect moving the patient toward a more healthful life. If outcomes have not improved, the nurse begins again at the assessment phase of the nursing process with the goal of changing the plan of care to improve outcomes. The patient’s response to the drug and occurrence of adverse drug effects indicate the effectiveness of the nursing interventions related to drug therapy. Assessment involves a systematic, organized collection of data concerning a patient. A nursing

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

diagnosis indicates actual or potential alterations in patient function based on the assessment of the clinical situation. Interventions are actions taken to meet the patient’s needs, such as administration of drugs. 5.

When the nurse reads in the drug handbook the section related to recommended dosage, it is important to remember that this suggested dosage is based on what?

A 40-year-old man

An average-sized adult

A 150-pound adult male

A healthy young adult

Ans:

C Feedback: Drug studies base the therapeutic dosage, or that dose needed to reach a critical concentration, on the physiology of a 150-pound healthy adult male. Testing is not routinely done in women because of the potential for unknown effects on the ova. Testing would not be done on an obese adult or older adult because of the potential for underlying disease, altered metabolism, or reactions to the drug. Children and adolescents are never used for testing due to ethical concerns.

A nurse is caring for a child on the pediatric unit. A drug is ordered for the child, but no pediatric dose is listed for the drug. To make sure that the right dose has been ordered, what will the nurse use to calculate the correct dose?

Surface area

Height

Birth date

Adult dosage

Ans:

A Feedback: The surface area of a child is calculated using height and weight. It is the most accurate way to determine an appropriate dosage for that child. Age does not take into consideration variations in growth. Height alone does not take into account the mass of the child. Gestational age is simply a distracter.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

You are evaluating the discharge teaching you have done with your patient concerning drug therapy. What statement from the patient would indicate that teaching had been effective?

I have to take three pills each day and I can take them at the time that fits my schedule.

I should take the white pill in the morning because the doctor wants me to take it.

I will add the names and dosages of these new drugs to my medication list in my wallet.

I have prescriptions at different pharmacies. I shop around for the best price for each drug.

Ans:

C Feedback: The patient needs to recognize the importance of keeping an updated list of all current medications and the need to share this list with all health care providers to avoid drug-drug interactions. The patient should understand exactly when to take medications, why that medication is being taken, and how to take it safely. Patients should be encouraged to use a single pharmacy because this will add another layer of safety because the pharmacy will know all drugs being prescribed to this patient.

The nurse would expect to see an adjusted dosage in what patients? (Select all that apply.)

Young adult women

Middle-aged men

Infants

Neonates

Older adults

Ans:

C, D, E Feedback: Patients at the extremes of the age spectrumchildren and older adultsoften require dosage adjustments based on the functional level of the liver and kidneys and the responsiveness of other organs. The child’s age and developmental level will also alert the nurse to possible problems with drug delivery, such as an inability to swallow pills or follow directions related to other delivery methods. The adult, whether male or female, would not require altered dosage unless a secondary condition such as renal or hepatic alterations existed.

When taking a medication history on a patient why should the nurse ask about the use of complementary or alternative therapies?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Patients starting on new drugs are usually not compliant with medical regimens.

Many drug-alternative therapy interactions can cause serious problems.

Natural products may be more effective and the prescribed drug may not be needed.

The cost of the drug and the alternative therapy may be too expensive for the patient to handle.

Ans:

Feedback: Alternative therapies often involve the use of herbal products, which contain natural chemicals that affect the body. Many drug-alternative therapy interactions have been reported that could cause serious adverse effects, but patients often don’t think to mention these therapies when asked about the medications they are taking. The health care provider needs to be alert to these possible interactions and to adjust treatment appropriately. Cost and effectiveness may be factors, but the balancing of these therapies in the drug regimen to prevent interactions is the main concern of the nurse. 10.

The nurse is reviewing the patient’s medication orders and finds an order stating amoxicillin 250 mg every 8 hours. What would the nurse question regarding this order?

Dose

Route

Frequency of administration

Allowance for generic substitution

Ans:

B Feedback: For the nurse to administer a medication, all essential components of a medication order must be written by the prescriber including drug name, dosage, route, frequency, and patient name. This order is missing the route and the drug could be given IV, IM, or PO. The nurse should call the ordering health care provider and clarify what route the medication is to be administered.

11.

The home health nurse is caring for a 77-year-old patient with congestive heart failure. What would the nurse consider a priority to assess to develop the most effective plan of care related to medication administration? Description of the patient’s living environment

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Required lifestyle changes

Family members in the community

Compliance with therapy to reduce risk of skin breakdown

Ans:

Feedback: Nurses must consider how a person responds to disease and its treatment, including the changes in lifestyle that may be required. By recognizing required lifestyles during the home visit the nurse can teach the patient how to make healthy choices and support the process of changing to new choices. Although the environment would impact the physical plan of care, it would not be a factor in the administration of medications. Assessment of family members in the community would not be a necessary part of the assessment in relation to the patient’s drug therapy. Nothing suggests the patient is at risk for skin breakdown so this would not factor into the medication regimen. 12.

Student nurses are learning to weigh patients and do vital signs. How does a correct weight impact administering medication?

Proper dosage calculation

Assessing changes in fluid balance

Assessing changes in nutritional status

Caloric needs

Ans:

A Feedback: Dosage of medication is often calculated based on the patient’s weight, so getting patients’ weight wrong could cause a medication error. The patient’s weight gives information into fluid balance, nutritional status, and caloric needs but this is not associated with drug therapy. However, a patient’s weight is most important in determining the appropriateness of drug dosage.

13.

Teaching the patient/caregiver about her or his medications is an important step in reducing the risk of medication errors. What is an important teaching point about medications? (Select all that apply.)

Speak up and ask questions.

Store medications in a warm humid place.

Adjust your medication according to how you feel.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Keep a list of your prescribed medications.

Take all medications together in the morning.

Ans:

A, D

Feedback: Appropriate patient teaching will reduce the risk of medication errors and complications. Nurses teach patients to speak up, ask questions, and act as his or her own advocate when medications are being prescribed. He should keep a complete list of medications and have a copy available at all times in case of accident. Store drugs in a dry, cool place away from children and pets that could be harmed. Take medications as they have been prescribed and do not adjust dosage without authorization from the prescriber. Take medications at the time they are prescribed to be taken, always being aware that some drugs cannot be taken together. 14.

A 73-year-old male patient is being discharged home today. The discharge order reads: Take 10 mL of guaifenesin (Robitussin) PO q4h. This over-the-counter pharmaceutical comes in bottles with plastic measuring caps. How much should the nurse teach the patient to take at home?

1/2 tsp

1 tsp

2 tsp

1 tbsp

Ans:

C Feedback: The nurse is responsible for teaching the patient the correct drug dosage. You should teach the patient that 5 mL = 1 tsp, so 10 mL (5 × 2) = 2 tsp; therefore Options A, B, and D are incorrect. It is important that patients be taught how to take their medication using measurement systems they are familiar with and know how to use.

15.

It is important for the nurse to evaluate the efficacy of what parameter when evaluating the drug therapy of a patient?

Appropriateness of drug dosages

Compliance

Caregivers’ knowledge level

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Nursing interventions

Ans:

Feedback: During the evaluation phase of care, nurses evaluate how effective care has been in meeting outcome goals. Appropriateness of drug dosages should be determined before administering the medication and not when evaluating their effects. Often, compliance cannot be evaluated until the nurse evaluates the effectiveness of therapy and finds the drug is not performing as expected, at which time the nurse may question the patient about whether medications are being taken as ordered. Caregivers’ knowledge level is an assessment providing data that will determine the teaching plan. 16.

The nurse is conducting an admission assessment on a patient. When collecting data related to medications the nurse asks What medications are you currently taking? After collecting this information, what other questions should the nurse ask? (Select all that apply.)

Do you take any medications?

What over-the-counter (OTC) medications do you take?

Do you take an herbs, vitamins, or supplements?

Do you take medications safely when you take them?

Why do you take this medication?

Ans:

B, C Feedback: Patients often neglect to mention OTC drugs or alternative therapies (e.g., herbals) because they do not consider them to be actual drugs or they may be unwilling to admit their use to the health care provider. Ask patients specifically about OTC drug and alternative therapy use. The question What medications are you taking? has already been asked so there is no need to ask if they take any medications. Often, patients may take medications unsafely, so do not ask whether the patient takes drugs safely but instead assess exactly how they take medications to determine whether they are being taken safely. Patients should always know why they are taking each medication to understand whether they are getting the desired effect.

17.

A 27-year-old man is admitted to the emergency department (ED) after a serious motorcycle accident. The patient has a head injury, abrasions covering the left side of his body, a broken left femur, and internal injuries that are not fully assessed at this time. He is transferred from the ED to the intensive care unit (ICU). The nurse who is going to care for this patient in the ICU knows that a priority responsibility in regard to drug therapy is what? Support vital functions

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Continue curative treatment

Institute life-saving treatment

Monitor patient’s response

Ans:

Feedback: Because the nurse has the greatest direct and continued contact with the patient, the nurse is in the best position to detect minute changes that ultimately determine the course of drug therapytherapeutic success or discontinuation because of adverse or unacceptable responses. The nurse would support vital functions, continue curative treatment, and institute life-saving treatment, but these actions occur regardless of drug therapy. 18.

When assessing a patient before starting a drug regimen, why would the nurse consider it important to assess baseline kidney function?

To anticipate adverse effects of drugs

To determine patient’s baseline electrolyte levels

To determine patient’s ability to excrete the drug

To determine patient’s ability to metabolize the drug

Ans:

C Feedback: Patients with kidney or liver disease require very cautious medication administration, often needing dosages to be decreased and contraindicating some drugs altogether. The patient’s renal status will indicate the ability to excrete the drug. Liver function is needed to assess metabolism. Electrolyte levels would be indicated by serum blood test results, not by studies of kidney function. The nurse’s goal is to prevent or minimize adverse effects of drugs, not to anticipate them.

19.

A nurse is caring for a 77-year-old patient. The nurse plans care for this patient based on the knowledge that the aging process impacts drug therapy in what important way?

Blood volume decreases

Subcutaneous tissue increases

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Total body water increases

Muscle mass increases

Ans:

Feedback: As patients age, the body undergoes many normal changes that can affect drug therapy, such as a decreased blood volume, decreased gastrointestinal (GI) absorption, reduced blood flow to muscles or skin, and changes in receptor site responsiveness. As a person ages, subcutaneous tissue decreases, total body water decreases, and muscle mass decreases. 20.

The nurse is caring for a patient who takes several drugs. What patient would the nurse monitor most closely because of an increased risk for adverse effects of medications?

The school-aged child

The obese middle-aged man

The adolescent

The newborn infant

Ans:

D Feedback: Patients most likely to have adverse drug reactions include the very young or very old due to physiologic characteristics peculiar to these age groups. Therefore, the newborn infant would be at greater risk than the school-aged child who is at greater risk than the adolescent or middle-aged man.

21.

Which statement best describes drug efficacy/toxicity in pediatric patients?

Drug requirements for infants have been extensively studied.

Drug dosage is altered by age and weight in children.

Children always need smaller doses of medication than adults.

Infants and children are not at risk for drug toxicity if the dosage is correct.

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Feedback: All aspects of pediatric drug therapy must be guided by the child’s age, weight, and level of growth and development. Drugs are generally studied using healthy young men and are never studied in infants because they are not old enough to give consent for themselves. Drug dosages are very specific and a big child may weigh more than an adult and require a larger dose. Even when medications are given accurately, adverse effects can occur. 22.

A 7-year-old boy fell off a wood pile while playing. He has been admitted to the intensive care unit with multiple broken bones and internal bleeding. What should the nurse know about drug therapy in this type of patient?

Adverse effects may be decreased.

Therapeutic effects may be increased.

Pharmacodynamics may be altered.

Pharmacokinetics remain the same.

Ans:

C Feedback: The child’s developmental age will influence pharmacokinetics and pharmacodynamics; the immature liver may not metabolize drugs in the same way and the kidneys may not work as efficiently as those of an adult. Adverse effects might be increased and therapeutic effects may be decreased.

23.

After admitting a patient to the unit, the nurse is organizing times to administer ordered medications. What important consideration will guide the nurse’s timing of each medication?

Comfort

Ethnicity of patient

Gender

Age

Ans:

A Feedback: Organizing the day and the drug regimen to make it the least intrusive on a patient’s comfort can help to prevent errors and improve compliance. Ethnicity, gender, and age should be a consideration when ordering the drug, but after the drug is chosen it should be administered in a way that will maintain the

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

patient’s quality-of-life. 24.

The nursing instructor is discussing drug therapy in the older adult. What would the instructor tell the students about what could affect therapeutic dosing in an older adult?

Changes in the gastrointestinal (GI) system can reduce drug absorption.

In older adults, drugs enter into circulation more quickly.

In older adults, drugs are distributed to a smaller portion of the tissues.

In older adults, drugs have an increased action.

Ans:

A Feedback: As patients age, the body undergoes many normal changes that can affect drug therapy, such as a decreased blood volume, decreased GI absorption, reduced blood flow to muscles or skin, and changes in receptor site responsiveness. They are not released more quickly into circulation; distributed to a smaller portion of tissue; nor do they have an increased action.

25.

In today’s health care environment there is often more contact between the patient and the nurse than between the patient and the physician. How does this increased patient contact impact drug therapy?

Choosing the best medication to treat the patient’s condition

Assessing the patient’s preferred communication strategies

Assessing the therapeutic success of the drug therapy

Reducing dosage quickly when adverse effects arise

Ans:

C Feedback: Because the nurse has the greatest direct and continued contact with the patient, the nurse is in the best position to detect minute changes that ultimately determine the course of drug therapytherapeutic success or discontinuation because of adverse or unacceptable responses. The nurse does not choose the medication or reduce dosage because it is outside the scope of practice of the nurse. Communication strategies used by patients are not related to drug therapy.

26.

The nurse admits a patient to the unit and learns the patient has recently been diagnosed with chronic renal failure but has not informed the primary care provider of this diagnosis. What is the nurse’s first priority?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Administer medications ordered immediately.

Maintain the patient’s confidentiality.

Call the admitting physician immediately.

Provide teaching about chronic renal failure.

Ans:

Feedback: Knowledge of the patient’s diagnosed renal failure is essential to proper medication ordering because some dosages will need to be decreased whereas other medications may be contraindicated in this patient. The nurse does not breach confidentiality when sharing information that impacts needed care to the primary care provider. Teaching about renal failure may be provided at some point but it is not the priority in this situation. Medications should not be administered until they are appropriately adjusted by a health care provider who is aware of the renal failure diagnosis. 27.

It is often necessary to obtain baseline data prior to initiating many forms of drug therapy. These baseline data include what? (Select all that apply.)

Education level

Allergies

Drug use

Number of members in family

Father’s occupation

Ans:

A, B, C Feedback: Assessing educational level allows the nurse to plan an effective teaching plan. Allergies must be fully assessed before administering any medication to prevent allergic responses. Understanding the patient’s current drug use informs the nurse about drugs that may interact or be impacted. Knowing the number of family members and father’s occupation would not promote safer drug administration.

28.

A 32-year-old woman is admitted to the unit with a diagnosis of hypovolemia. The nurse is developing a care plan for this patient. What is an appropriate nursing diagnosis to help prevent medication errors?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Dysfunctional gastrointestinal motility

Ineffective self-health maintenance

Risk for injury

Deficient fluid volume

Ans:

Feedback: Hypovolemia is condition involving fluid volume in the body that is less than required. This would affect drug therapy for this patient and would be an important inclusion in the plan of care. The situation described does not indicate dysfunctional GI motility or ineffective self-health maintenance. A patient who is severely fluid volume deficient might be at risk for falls and injury but more information would be needed to make this determination. 29.

The nurse applies the nursing process in medication therapy to ensure what?

That medications are given at the right time

That care is efficient and effective

That the right dose of the drug is given to the patient

That the right drug is given to the right patient at the right time

Ans:

B Feedback: Nurses use the nursing process as a decision-making, problem-solving process to improve the efficiency and effectiveness of care. Options A, C, and D are incorrect and do not describe why the nursing process is important as much as they explain how to give medications safely.

30.

A 35-year-old male patient is admitted to the hospital with pneumonia. He was originally being treated at home, but became worse when he quit taking his antibiotic prematurely. What is an appropriate nursing diagnosis for this patient?

Deficient knowledge: monitoring temperature

Noncompliance

Risk for injury related to hypoxia

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Non-adherence: overuse

Ans:

Feedback: This patient did not take his antibiotic as directed. He quit taking his medication too soon, probably when he began to feel better so he was noncompliant with care. Why he quit taking the medication is unknown; it could have been a knowledge deficit or inability to pay for the full prescription. This will require further assessment to determine. Further data would need to be collected to determine whether the patient is experiencing hypoxia. He did not overuse his medication so option D is inaccurate. 31.

The nurse is reviewing the patient’s admission medication orders. What order would the nurse to question?

Digoxin .5 mg orally nowgive one dose only

Lasix 20 mg. IV every 4 hours times 3

Gentamicin 80 mg IV to infuse over 1 hour every 12 hours

Acetaminophen 650 mg PO every 4 hours as needed for pain

Ans:

A Feedback: The nurse should question the order for Digoxin.5 mg to make sure 0.5 mg is meant versus 5 mg, or what should have been ordered which is 0.05 mg. There should always be a 0 before a decimal point if no other number is present to make sure the decimal point is seen. The remaining orders could be administered as written.

32.

The nursing instructor observes several nursing students administer medications to their assigned patients. The instructor would stop what student from administering the medication until the error was corrected?

The student checks the label on the medication against the administration record three times.

The student enters the patient’s room and asks the patient Are you Mr. Jones?

The student checks the drug’s brand name and generic name before taking it to the patient.

The student documents the medication upon exiting the patient’s room.

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Feedback: When the student asks the patient, Are you Mr. Jones the patient may nod in agreement, even if that is not his name. Perhaps he misheard, or maybe he wasn’t paying attention to the name, or he may just want to be agreeable but this manner of ensuring the right patient receives a medication often results in errors. The student is correct to check the medication name against the medication administration record (MAR) three times to ensure the right drug is administered. The student who checks brand name and generic name is accurate in making sure the correct drug is prepared. Medication should be documented as soon as they are given so this student is also correct. 33.

The nurse is caring for a patient scheduled for surgery this morning who is not to be given anything orally. The nurse reviews the medication administration record and finds the patient has an important medication due but it is supposed to be given orally. What is the nurse’s best action?

Give the medication with a small sip of water.

Give the medication via a different route.

Hold the medication and put a note on the front of the chart for the surgeon.

Call the ordering health care provider and clarify administration.

Ans:

D Feedback: The nurse would consult with the ordering provider to determine whether the medication should be held, given by another route, or taken with a sip of water. Administering the medication with a small sip of water could cause the cancellation of the procedure, either because of the sip of water or because the medication may interfere with anesthesia. The nurse cannot change the route of administration without an order. Holding the medication would constitute a drug error because the medication was not given on time.

34.

The nurse admits an older adult patient to the emergency room with reports of shortness of breath on exertion and a productive cough. The nurse reviews the patient’s current medications and the patient says, I take one pink pill every morning. The nurse asks the name of the drug and the patient says she doesn’t know. The patient cannot supply the name of the drug or the purpose in taking it either. This happens with four other medications the patient says she takes. What is an appropriate nursing diagnosis for this patient?

Acute confusion

Risk-prone health behavior

Ineffective health maintenance

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Noncompliance

Ans:

Feedback: This patient is demonstrating ineffective health maintenance because knowledge of what medications are being taken and why they are being taken is essential to her health. Patients should be instructed to carry an up-to-date list of current medications to share with all health care providers. She is taking her medication as ordered according to what she said so that would eliminate risk-prone health behaviors and noncompliance. There is no indication the patient is confused. 35.

What action does the nurse take during the intervention state of the nursing process related to drug therapy? (Select all that apply.)

Administer the medication.

Determine medication effectiveness.

Document the medication.

Analyze the data collected.

Collect a nursing history.

Ans:

A, C Feedback: During the implementation phase, the nurse administers and documents the medication. Effectiveness of the medication is determined during the evaluation phase. Analyzing data occurs when assigning appropriate nursing diagnoses. Collecting a nursing history is part of the assessment stage of the nursing process.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Chapter 05 - Dosage Calculations

The nurse is calculating a drug dosage and converting from milligrams to grams. What measurement system is the nurse using?

Metric system

Apothecary system

Household system

Avoirdupois system

Ans:

A Feedback: The metric system is the most widely used system of measurement in the world; it is based on the decimal system. The gram is the basic unit of solid measure, and the liter unit of liquid measure. The apothecary system uses the grain as the basic unit of solid measure. The household system uses the pound as the basic unit of measure. The avoirdupois system uses ounces and grains, but it is mostly used by drug manufacturers for bulk medications.

The nurse teaches a young mother the importance of administering appropriate dosages of acetaminophen (Tylenol) and determines further teaching is needed when the mother makes what statement?

The children’s dosage will change with time as they grow.

My baby’s dose of Tylenol is about 1 half an adult dose.

It is important to give the right dose to prevent toxic effects of the medication.

My children’s dose of Tylenol should be based on their weight or age.

Ans:

B Feedback: A child’s dose is never based on an adult’s dose. A child’s dosage is based on weight and age and will change with age as they grow. Larger than directed dosages can result in toxic effects of this medication.

A nurse calculates the pediatric patient’s medication dosage using Clark’s rule and uses what formula?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Infant’s age in months/150 months times the average adult dose

Child’s age in years/child’s age in years plus 12 times the average adult dose

Weight of child in pounds/150 pounds times the average adult dose

Surface area in square meters/1.73 times the average adult dose

Ans:

Feedback: Clark’s rule uses the child’s weight to calculate the dose and assumes the adult dose is based on a 150pound person. Fried’s rule applies to a child younger than 1 year of age and assumes that an adult dose would be appropriate for a child who is 12.5 years (150 months) old. Young’s rule applies to children 1 to 12 years of age. Surface area calculation of a child’s dose is determined with the use of a nomogram including the child’s height and weight. 4.

Ans:

The nurse receives a new medication order for a patient to administer 240 mg of medication per day in equally divided doses every 6 hours. How many mg of the drug should the nurse administer for each dose? 60 mg Feedback: Because there are 24 hours in a day, giving a drug every 6 hours would mean giving the drug 4 times a day. Because the total daily dose is 240 mg, dividing that dose by 4 would mean each dose should be 60 mg.

A physician orders 500 mL of IV solution be administered over 8 hours. If the IV infusion set delivers 15 drops per mL, how many drops per minute should the nurse administer to the patient?

15 drops/min

20 drops/min

32 drops/min

64 drops/min

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

If a patient was to receive 500 mL in 8 hours, dividing 500 by 8 would mean that the patient would receive 62.5 mL in 1 hour, or 60 min. Setting up the equation, 15 drops/mL/X equals 62.5 mL/60 min; cross-multiplying, the answer will be 15 drops/min. 6.

The nurse is teaching a diabetic patient to self-administer Humulin insulin, supplied in a vial labeled 100 units/mL. The provider has ordered 32 units of Humulin insulin to be taken each morning. How many mL of insulin would the patient prepare for one dose?

0.032 mL

0.32 mL

3.2 mL

0.64 mL

Ans:

B Feedback: There are 100 units in each mL. Divide that amount by 32 units for the answer (0.32 mL).

Ans:

The provider orders a maintenance dose of oral aminophylline, 3 mg/kg every 6 hour. The patient weighs 50 kg. How many mg should the nurse administer to the patient in a 24-hour period? 600 milligram Feedback: The patient’s weight times the number of milligram/kilogram will provide daily dosage of medication: 50 kg × 3 mg/kg = 150 mg per dose. The patient is to receive a dose every 6 hours. The number of hours in a day divided by the number of hours separating each dose supplies the number of dosages the patient receives per day: 24 hours ÷ 6 hours between doses = 4 doses per day. If each dose is 150 mg and the patient receives 4 of these doses a day, the total amount of medication received is 150 mg × 4 daily doses = 600 mg.

The physician writes an order for oxazepam for a 6-year-old child. The nurse verifies that there is no established dosage for children 6 to 12 years of age for oxazepam. The nurse knows that the usual adult dose is 10 mg tid. What would the nurse calculate the appropriate dose to be?

0.03 mg tid

0.3 mg tid

1.8 mg tid

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

3.3 mg tid

Ans:

Feedback: Because the nurse knows only the child’s age, the nurse would need to use Young’s rule to determine the appropriate dosage. The formula for Young’s rule is: Child’s dose = child’s age in years ÷ (child’s age + 12) × average adult dose. Using the information provided in the question: Dose = 6 ÷ (6 + 12) × 10 mg = 6 ÷ 18 × 10 = 0.33 × 10 = 3.3. 9.

A newly admitted patient has orders to receive 1,000 mL of normal saline IV over 8 hours. If the IV infusion set is a microdrip set that delivers 60 drops per mL, how many drops per minute should the nurse administer to the patient?

60 drops/min

125 drops/min

240 drops/min

480 drops/min

Ans:

B Feedback: If a patient was to receive 1,000 mL in 8 hours, dividing 1000 by 8 would mean that the patient would receive 125 mL in 1 hour, or 60 minutes. Setting up the equation, 60 drops/mL ÷ X = 125 mL/60 minutes; cross-multiplying, the answer is 125 drops/min.

10.

The nurse is preparing to administer cefadroxil 1 g PO. The medication is supplied in 500-mg tablets. How many tablets will the nurse administer?

0.5 tablet

1 tablet

2 tablets

3 tablets

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Feedback: Convert 1 g to mg by multiplying 1 g times 1,000 mg. There are 500-mg in each tablet. Dividing the 1000 mg prescribed dosage by 500-mg available dosage, the answer is two tablets. 11.

The nurse begins administering 500 mL of 5% dextrose and water solution at 01:00 to run over 4 hours. At 02:00, the nurse administers 80 mg gentamicin in 50 cc normal saline to infuse over 30 minutes. How many mL of fluid will the nurse administer to the patient between 02:00 and 03:00?

175 mL

150 mL

125 mL

100 mL

Ans:

A Feedback: The patient is receiving 500 mL over 4 hours. To determine how much fluid is infusing per hour = 500 mL ÷ 4 = 125. In addition to the 125 mL of IV solution, the patient also receives 50 mL of gentamicin during the 02:00 to 03:00 hour. 125 mL + 50 mL = 175 total mL of fluid received during this hour.

12.

Ans:

An adult patient with renal cancer, weighing 95 kg, is to receive vincristine 25 mcg/kg/day IV. What is the dosage of vincristine that the nurse should administer to the patient daily in mg? __________ 2.375 mg Feedback: This order requires 25 mcg of medication for every 1 kg of body weight. The patient weighs 95 kg. To determine total dosage multiply weight times mcg of medication: 25 × 95 = 2,375 mcg. Convert mcg to mg by moving the decimal three places to the left, or you can divide 2,375 by 1,000 because there are 1,000 mcg per mg.

13.

Ans:

The nurse is preparing medication for a 30-month-old child with otitis media in the right ear. The child weighs 33 pounds. The physician has ordered Keflex, 50 mg/kg/d in equally divided doses every 8 hours. The medication concentration is 250 mg/5 mL. How many milliliters should the nurse give the toddler for each dose? 5 mL Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

To calculate the correct dosage, the nurse first converts the child’s weight from pounds to kilograms by dividing weight in pounds by 2.2 (2.2 lb = 1 kg). 33 pounds ÷ 2.2 pounds/kg = 15 kg. The child is to receive 50 mg for every kilogram. To determine this child’s dosage multiply weight times daily dose (15 kg × 50 mg/kg = 750 mg). Thus, 750 mg is to be administered in equally divided dosages every 8 hours, or 3 times a day. 750 mg ÷ 3 = 250 mg/dose. There is 250 mg in 5 mL of medication so the patient would be given 5 mL. 14.

An adolescent is admitted to the intensive care unit with diabetic ketoacidosis. The nurse prepares a continuous insulin infusion of 100 units (U) regular insulin in 500 milligram normal saline. When documenting this medication, how many units of regular insulin will this patient receive per milligram of IV solution?

0.175 U/milligram

0.2 U/milligram

0.25 U/milligram

0.5 U/milligram

Ans:

B Feedback: The problem tells us there is 100 U/500 milligram. To determine how many units are in each milligram, divide both numbers by 500: 100 U ÷ 500/500 milligram÷ 500 = 0.2 U/1 milligram.

15.

The patient drinks 18 ounces of fluid at lunchtime. How many milliliters of intake will the nurse document?

1.7 mL

0.6 mL

540 mL

54 mL

Ans:

C Feedback: 1 ounce = 30 mL. Using the ratio-and-proportion method: 1 oz/30 mL = 18 oz/X. Cross-multiply to determine the patient drank 540 mL of fluid.

16.

The pediatric nurse is caring for a child who weighs 44 pounds. The physician has ordered

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

methylprednisolone sodium succinate (Solu-Medrol), 0.03 mg/kg/d IV in normal saline. How many milligrams of medication will the nurse prepare? A)

6.5

0.65

0.6

Ans:

D Feedback: First convert the child’s weight to kilograms by dividing 44 pounds by 2.2 kg/1 pound = 20 kg. Multiply the dosage times the child’s weight: 20 kg × 0.03 mg/kg/d = 0.6 mg/d

17.

The nurse is to infuse 100 mL of 5% dextrose and water solution containing an IV antibiotic over 30 minutes. The infusion set delivers 10 gtt/mL. How many drops per minute will the nurse administer?

33 gtt/min

30.3 gtt/min

30 gtt/min

3 gtt/min

Ans:

A Feedback: Use the following ratio to determine how many drops of fluid to administer per minute: Using the information from this problem: Because it is not possible to deliver 0.3 drops, round 33.3 to 33 gtt/min.

18.

An 80-year-old patient with internal bleeding is admitted through the emergency room after a motor vehicle accident. The physician has ordered 2 units of packed red blood cells (1 unit is 250 mL) to infuse over 1 hour each. The drip rate on the blood administration set is10 gtt/mL. The nurse administers how many drops per minute to infuse the blood as ordered? 47

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

Feedback: Use the following ratio to determine how many drops of fluid to administer per minute: Using the information from this problem: Because it is not possible to deliver 0.7 of a drop, round 41.7 to 42 minutes 19.

The physician prescribes 250 mg of a drug. The information on the drug vial says the concentration is 500 mg/mL. How much of the drug will the nurse prepare?

0.25 mL

0.33 mL

0.5 mL

0.75 mL

Ans:

C Feedback: To determine amount to prepare: 500 mg/1 mL = 250 mg/X. Cross-multiply to determine the nurse will prepare 0.5 mL.

20.

An 81-year-old patient with congestive heart failure has been sent to a cardiologist who prescribes digoxin (Lanoxin) 0.125 mg PO every morning. The pharmacy dispenses pills that contain 0.25 mg of Lanoxin. How many pills should the nurse teach the patient to take every morning?

1.5

0.5

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

D Feedback: 0.25 mg/1 tablet = 0.125 mg dose/X. Cross-multiply to determine 0.5 or 1/2 of a tablet is to be taken daily. The nurse may request the pharmacy dispense a different concentration to prevent the patient from having to cut the tablet in half.

21.

A patient with diabetic ketoacidosis is to receive a continuous infusion of regular insulin. The physician orders 1 L of 5% dextrose and water solution to run at 150 mL/h once the patient’s blood glucose has reached 250 mg/dL. The drip factor of the tubing is 15 gtt/mL. How many drops per minute will the nurse deliver?

0.25 gtt/min

62 gtt/min

37 gtt/min

250 gtt/min

Ans:

C Feedback: Using the information from this problem: 37.5 can be rounded to 37 or 38 gtt/min.

22.

A patient has orders to receive 2 L of IV fluid over a 24-hour period with ½ this amount to be infused in the first 10 hours of treatment. How many milliliters per hour will the nurse administer during the first 10 hours of the infusion?

50 mL/h

100 mL/h

83 mL/h

200 mL/h

Ans:

B Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

½ of the 2 liters is to infuse in the first 10 hours. ½ of 2 = 1 L; 1 L = 1,000 mL to infuse over 10 hours = 100 mL/L. 23.

A patient is going to have bowel surgery in the morning. The physician orders 500 mL of GoLytely PO to be administered at 5 PM this evening. How many liters will the nurse administer?

Ans:

C Feedback: Cross-multiply to learn 500 mL = ½ or 0.5 L.

24.

The patient returns from the postanesthesia care unit (PACU) with the following order: morphine 3 mg IV every 2 hours as needed for relief of pain. The vial reads morphine, 4 mg/mL. How many milliliters of morphine will the nurse administer?

1 mL

0.75 mL

0.5 mL

0.25 mL

Ans:

B Feedback: Using the figures from this problem: 4 mg/1 mL = 3 mg/X. Cross-multiply yielding 0.75 mL.

25.

A patient is admitted with a deep vein thrombosis in his or her left calf. The physician orders Heparin, 7,500 units subcutaneously every 12 hours. The medication vial reads Heparin, 10,000 units/mL. How many milliliters does the nurse administer? 0.5 mL

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

0.75 mL

1 mL

1.25 mL

Ans:

Feedback: Using the information supplied by the problem: 10,000 units/1 mL = 7,500/X. Cross-multiplying yields X = 0.75 mL for each dose. 26.

A patient with an acute myocardial infarction is admitted to the coronary care unit. The physician has ordered heparin 25,000 units in 250 mL normal saline to infuse at a rate of 600 units/h. The nurse sets the infusion pump to deliver how many milliliters in an hour?

Ans:

C Feedback: First determine the number of units per mL = 25,000 units/250 mL = 100 units/1 mL. Next use the ratio and proportion method to determine the number of milliliters needed to supply 600 units/h. 100 units/1 mL = 600 units/X. Cross-multiplying yields 6 mL needed every hour to supply the required dose.

27.

The physician has ordered 30 mg of Demerol IM for relief of a severe migraine headache. The package insert reads meperidine hydrochloride (Demerol) 50 mg/mL. How many milliliters would the nurse administer?

1.6

0.6

0.5

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

C Feedback: Filling in the information from the problem: 50 mg/1 mL = 30 mg/X mL. Cross-multiply yielding 0.6 mL required to administer a 30-mg dosage.

28.

A patient is experiencing pain, so the physician orders codeine ½ grain every 4 hours. How many milligrams of codeine would the nurse administer?

15 mg

30 mg

60 mg

120 mg

Ans:

B Feedback: The simplest way to convert measurements from one system to another is to set up a ratio and proportion equation. The ratio containing two known equivalent amounts is placed on one side of an equation, and the ratio containing the amount you wish to convert and its unknown equivalent is placed on the other side. 60 mg/1 grain = flexion range of motion. Cross-multiplying yields 30 mg.

29.

A 79-year-old female patient presents at the clinic complaining of constipation for 1 week. The nurse practitioner prescribes Milk of Magnesia 2 teaspoons by mouth as needed for relief of constipation. How many milliliter will the nurse administer?

30 mL

7.5 mL

10 mL

15 mL

Ans:

C Feedback: Use the ratio and proportion method to convert from household system to metric system. 5 mL/1 tsp =

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

X mL/2 tsp. Cross-multiplying yields 10 mL = 2 tsp. 30.

A patient has orders to receive 3,000 mL of IV fluid at a rate of 150 mL/h. If the infusion starts at 08:00, when would it be finished?

20:00

23:00

01:00

04:00

Ans:

D Feedback: Amount of fluid to infuse = 3,000 mL; rate of infusion = 150 mL. 3,000 ÷ 150 mL = 20 hours to infuse. There are 24 hours in a day 20 hours = 4 hours. The infusion will complete in 4 hours before 08:00 (08:00 04:00 = 04:00 hour) so the infusion completes at 04:00.

31.

The nurse recognizes that what system is being used when seeing a medication ordered in minims?

Apothecary

Metric

Household

Avoirdupois

Ans:

A Feedback: The apothecary system used minims as the basic measure of liquid and is rarely used today. The metric system uses liters as the basic unit of measurement for fluid, while the household system uses ounces and the avoirdupois system uses ounces with a different conversion amount.

32.

The nurse is calculating the patient’s intake and output record and converts ounces to milliliters. What systems is this nurse converting from and to? From household to metric

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

From metric to household

From household to apothecary

From apothecary to Avoirdupois

Ans:

Feedback: Ounces can be either household or Avoirdupois, although they are not equal measurements and milliliters is a metric measurement. Since Avoirdupois to metric is not an available choice, the correct answer is household to metric. 33.

What is the most accurate method for the nurse to use when determining a pediatric dosage?

A nomogram using body surface area

Young’s rule

Fried’s rule

Clark’s rule

Ans:

A Feedback: The most accurate means of determining a pediatric drug dosage is a nomogram using body surface area because the weight and body surface area of two children who are of the same age can be significantly different. Young’s rule, Fried’s rule, and Clark’s rule are based on the child’s age and the usual adult dosage and are rarely used today unless no other method will suffice for a specific drug.

34.

The nurse determines a child’s body surface area is 0.4 m2 and the average adult dosage of the medication is 500 mg. The medication is supplied in liquid form with 500mg/5 mL. How many milliliter will the nurse administer?

3.46 mL

1.73 mL

0.5 mL

12 mL

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

A Feedback: The formula for calculating the child’s dose using body surface area is surface area in m2 divided by 1.73 and then multiplied by adult dosage. Using the information supplied in this problem (0.4 ÷ 1.73) × 500 mg = 346 mg. Using the ratio and proportion method, 500 mg/5 mL = 346 mg/X mL; crossmultiplying yields 3.46 mL for the nurse to administer.

35.

The physician orders acetaminophen (Tylenol) 15 mg/kg q4 hours PRN (as needed) for pain. The drug is supplied with 160 mg/5 mL. The infant weighs 12 pounds. How many milliliter of medication will the nurse administer?

2.5 mL

5.6 mL

12.4 mL

10.7 mL

Ans:

A Feedback: Begin by converting the infant’s weight to kilograms (12 pounds ÷ 2.2 pounds/kg = 5.45 kg). The order says to give 15 mg/kg. To determine this child’s dosage multiply weight and 15 mg/kg (5.45 kg × 15 mg/kg = 81.75 mg/dose). Finally, use the ratio and proportion method to calculate how to prepare the medication: 160 mg/5 mL = 81.75 mg/X mL; cross-multiplying yields 2.5 mL.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Chapter 06 - Challenges to Effective Drug Therapy

A nurse is preparing a drug for administration to a patient. The drug does not have an indicated use for the patient’s medical diagnosis. What should the nurse do?

Administer the drug as ordered.

Question the prescriber concerning the ordered drug.

Ask a coworker his or her thoughts about the ordered drug for the patient.

Ask the patient why the drug has been prescribed for him or her.

Ans:

B Feedback: If the nurse is not sure about giving a drug, the order should be questioned. The nurse should never give a medication that is not clear. Mistakes do happen and the drug ordered, if not approved for the condition that the patient has, could be an error on someone’s part. The person who wrote the order should be questioned, not a co worker, who probably does not know why an off-label drug is being used. It would be unprofessional and inappropriate to ask the patient about the drug.

According to Center for Disease Control and Prevention (CDC) recommendations, what is the role of the nurse in preparing for the possibility of bioterrorism?

Post updated information on signs and symptoms of infections caused by biological agents

Provide guidelines for treating patients exposed to, or potentially exposed to, biological agents

Remain current on recognition and treatment of infections caused by biological weapons

Advocate for increased funding for research involving bioterrorism and patient treatment

Ans:

C Feedback: Nurses need to remain current about recognition of and treatment for those exposed to biological weapons because nurses are often called upon to answer questions, reassure the public, offer educational programs, and serve on emergency preparedness committees. The CDC posts updated information on signs and symptoms of infections caused by biological agents that nurses would read. The CDC also provides guidelines for how to treat patients exposed to biological agents and the nurse must remain current on this information. Although nurses could advocate for funding, this is not usually

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

the role of the nurse. 3.

How can the nurse find the most up-to-date information about emergency preparedness related to bioterrorism agents?

Read textbooks devoted to the topic.

Ask coworkers to explain current events.

Read journal articles about bioterrorism agents.

Visit the Centers for Disease Control and Prevention (CDC) Web site.

Ans:

D Feedback: The most current information will be found on the CDC Web site because new information can be posted immediately whereas textbooks and journal articles take time to print. Coworkers may or may not remain current on emergency preparedness and should not be the primary source of information.

The nurse is assessing a diabetic patient who has presented at the clinic reporting several hypoglycemic episodes during the past 3 weeks. The nurse questions the patient about the use of herbal or alternative therapies, suspecting what herbal remedy could cause the hypoglycemic episodes?

St. John’s wort

Kava

Fish oil

Ginseng

Ans:

D Feedback: Ginseng is known to decrease blood sugar levels. If the patient used this in combination with his or her oral antidiabetic agent, diet, and exercise, his or her blood sugar could drop below therapeutic levels. St. John’s wort interacts with many drugs, but not with antidiabetic agents. Kava is associated with liver toxicity. Fish oil has been associated with decreased coronary artery disease.

A 22-year-old patient calls the clinic and tells the nurse that she has been depressed and is thinking about taking St. John’s wort but wants to know if it is safe first. The nurse begins by questioning what other medications the patient takes and would be concerned about a drug-alternative drug interaction if the patient is also taking what type of medication?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Antihistamines

Analgesics

Antibiotics

Oral contraceptives

Ans:

Feedback: St. John’s wort can interact with oral contraceptives that alter drug metabolism, which can decrease the effectiveness of the contraceptive. Analgesics, antibiotics, and antihistamines can be taken in combination with St. John’s wort without known adverse effects. 6.

A patient tells the clinic nurse that he or she has been taking over-the-counter (OTC) Pepcid to relieve acid indigestion for several years. This is the first time the patient has ever reported this issue to a health care provider. As part of the teaching plan for this patient, the nurse explains what risk associated with not sharing OTC drug use with the provider?

The OTC drug could be more expensive than seeking health care advice.

The drug could mask symptoms of a serious problem that is undiagnosed.

Use of the drug could cause a rebound effect of Pepcid.

The drug could interact with several cold medicines.

Ans:

D Feedback: OTC drugs allow patients to self-diagnose and treat routine signs and symptoms without seeing a health care provider. This self-prescribed treatment, however, could mask a more serious underlying medical problem and result in a poor outcome for the patient. The issues of drug rebound and drug interaction need to be considered, but the safety issue related to self-diagnosis and self-prescription presents the greatest risk to the patient. Patients should always be encouraged to discuss the use of OTC products with their health care provider.

What patient populations would the nurse expect is most likely to be prescribed a drug for an off-label use? Adolescent and middle-aged adult patients

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Patients with diabetes or heart disease

Obstetric and neonatal patients

Pediatric and geriatric patients

Ans:

Feedback: Drugs being used for an off-label purpose are commonly prescribed for pediatric and geriatric populations due to the lack of drug trial information and minimal premarket testing. Often a trial-anderror method is used in treating both the pediatric and geriatric populations when only adult information is known. The geriatric population responds to medication more like children because of their decreased ability to metabolize medications. Adolescents, especially later adolescents, use medications similarly to young adults as do middle-aged adults. Patients with different diagnoses are often involved in drug testing including those with diabetes and heart disease. Drugs are discouraged for use in obstetric patients. 8.

A patient calls the clinic and asks to speak to a nurse. The patient questions the nurse about the use of a drug that was advertised on TV. The patient tells the nurse he or she is sure that the drug will make him or her feel the same way as described in the commercial. What response is most appropriate for the nurse to make?

I’m glad that you want to be involved in treatment decisions but you are not qualified to decide what medications are best for your condition.

It’s important to remember that drug advertisements emphasize the positive effects of drug therapy and not the adverse effects or contraindications.

You need to remember that the drugs being advertised are much more expensive than other drugs that have the same effect.

I’ve seen those advertisements and I would want to take that medication too if I had the condition it was designed to treat.

Ans:

B Feedback: It would be important for the nurse to remind the patient that advertisements always emphasize the positive effects of drug therapy. The patient should not be discouraged from contributing to the plan of care by being told she is not adequately qualified to make decisions because no one is more qualified to make decisions about her own body. Although the drug may be more expensive, this is not a reason to choose or avoid a medication that could be more effective. Agreeing with the patient is not meeting the nurse’s obligation to teach and inform.

The clinic nurse is talking with a patient about information concerning a drug her or she bought online.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

What is the nurse’s responsibility to the patient concerning this information? A)

Encourage the patient to seek information about drugs from a pharmacist.

Explain that information obtained from the Internet is not always accurate.

Offer the patient a drug reference guide to read and learn more about the drug.

Interpret the information and explain it in terms that the patient will understand.

Ans:

D Feedback: The Internet can be a good reference for drug information. However, the amount and reliability of the information can be overwhelming. The nurse should always try to interpret the information and explain it in terms that the patient will understand. A pharmacist is a good resource person but may not be able to teach from a holistic perspective. Drug reference guides may be hard for the patient to understand and he or she would still need someone to interpret the information.

10.

The triage nurse in the emergency department sees a patient suspected of abusing amphetamines brought in by friends. While assessing this patient, what would the nurse be likely to find if steroids are being abused?

Hypertension

Bradycardia

Drowsiness

Elated mood

Ans:

A Feedback: Increases in blood pressure, tachycardia, and insomnia are symptoms of amphetamine abuse. Elation can indicate abuse of cannabis.

11.

The nursing instructor is discussing the off-label use of drugs. What group of drugs would the instructor tell the nursing students is often used for off-label indications?

Drugs used to treat psychiatric problems

Drugs used to treat gastrointestinal (GI) problems

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Drugs used to treat cardiovascular problems

Drugs used to treat musculoskeletal problems

Ans:

Feedback: Drugs often used for off-label indications include the drugs used to treat various psychiatric problems. Drugs used to treat GI, cardiovascular, or musculoskeletal problems do not fall in the category of frequent off-label uses. 12.

The patient calls the clinic nurse and says, I looked this medication up on the Internet after it was prescribed yesterday and there is nothing in the literature about this drug being used to treat my disorder. Should I still take it? What is the nurse’s best response?

No, stop taking it immediately until I can consult with the doctor because it is obvious a mistake was made.

Oh, that’s okay. Go ahead and take it because the doctor wouldn’t order it if he or she didn’t think it would be effective.

It is quite common for drugs to be found to have positive effects for a condition not originally intended so it is safe to take.

Let me talk with the physician about why this medication was ordered for you and I will call you back.

Ans:

D Feedback: Off-label use is relatively common because new information is gathered when the drug is used by large numbers of people that may indicate another condition for which the drug is effective. However, if the nurse does not know for a fact that the drug prescribed is the right drug for the patient’s condition, it is always best to consult with the prescriber to make sure the patient is taking the right drug and to avoid a medication error. The medication may be perfectly safe so the patient should not be told the doctor made a mistake.

13.

When a drug is ordered off-label, what must the nurse be clear about before administering the drug? (Select all that apply.)

Why the drug is being given

Its potential for problems

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The research that has been done

The age group it was pretested on

The intended use

Ans:

A, B, E

Feedback: Liability issues surrounding many of these uses are very unclear, and the nurse should be clear about the intended use, why the drug is being given, and its potential for problems. Knowing the age group it was pretested on and knowing the research that has been done are not factors the nurse needs to know before administering the drug. 14.

It is important for the nurse to be aware of what related to the way drugs are marketed?

The adverse effects the advertisements do not mention

What magazines and Web sites contain the advertisement

What patients are seeing in the advertisements about these drugs

The name of the cheerful, happy models who are advertising these drugs

Ans:

C Feedback: As the marketing power for prescription drugs continues to grow, the nurse must be constantly aware of what patients are seeing, what the ads are claiming, and the real data behind the indications and contraindications for these hot drugs. The Food and Drug Administration regulates the information that needs to be contained within medication ads. Where the patient saw the ad and the actors in the ads are unimportant.

15.

When evaluating information accessed over the Internet, an important question the nurse should teach the patient to ask is what?

Is the information anecdotal?

Where has this information been obtained?

Is this information paid for by the drug company?

How many patients have had input into the information?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

A Feedback: Many people do not know how to evaluate the drug-related information that they can access over the Internet. Is it accurate or anecdotal is an important concept for the nurse to teach the patient to assess to verify the accuracy of the information. Where the information came from is unimportant. It would be expected that all drug advertising is paid for by the drug company and this is not an important concern. Number of patients with input into the information is most likely none because information is gathered from health care professionals.

16.

How has the patient’s access to drug information changed the way the patient interacts with the nurse and other health care providers?

Patients share information from research reports with health care providers.

Patients are contacting drug companies to see what their latest reports say.

Patients are more likely to challenge the health care provider with their own research.

Patients are more likely to self-prescribe and not obtain prescriptions from their health care provider.

Ans:

C Feedback: Access to consumer advertising, mass media health reports, and the Internet influence some patients to request specific treatments, to question therapy, and to challenge the health care provider. Consumers do not generally read research reports from medical facilities and contact drug companies to see what their reports say, and they cannot self-medicate because many of these drugs require a prescription to obtain them.

17.

What can make a nurse or any health care provider lose credibility with the patient?

Being unprepared to deal with the disease of the week

Refusing to write prescriptions for the drug the patient requests

Not being knowledgeable about diseases described on House

Being prepared to discuss the role of concierge doctor

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Feedback: Some health care providers have learned to deal with the disease of the week as seen on talk shows; others can be unprepared to deal with what was presented and may lose credibility with the patient. 18.

Today, an abundance of information is available in the health care arena for consumers, resulting in the nurse encountering patients who have a much greater use of what?

Over-the-counter (OTC) therapies

Alternative therapies

Prescription drugs

Off-label drugs

Ans:

B Feedback: The patient now comes into the health care system burdened with the influence of advertising, the Internet, and a growing alternative therapy industry. Many patients no longer calmly accept whatever medication is selected for them. Indeed, an increasing number of patients are turning to alternative therapies with the belief that they will treat their disorder and reduce risk of adverse effects. Although more prescription drugs are used today, that is not related to abundant information. No indication exists of an increase in use of OTC or off-label drugs.

19.

Because of the amount of care now being done in the home care setting, it is imperative that the nurse teach the patients what? (Select all that apply.)

Care givers educational level.

Generic names of medication

Over-the-counter (OTC) drugs that need to be avoided

Alleviation of adverse effects

How to calculate safe dosages

Ans:

B, C, D Feedback: The responsibility of meeting the tremendous increase in teaching needs of patients frequently resides

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

with the nurse. Patients need to know exactly what medications they are taking (generic and brand names), the dose of each medication, and what each is supposed to do. Patients also need to know what they can do to alleviate some of the adverse effects that are expected with each drug (e.g., small meals if gastrointestinal upset is common, use of a humidifier if secretions will be dried and make breathing difficult), which OTC drugs or alternative therapies they need to avoid while taking their prescribed drugs, and what to watch for that would indicate a need to call the health care provider. 20.

What concerns might the nurse legitimately have related to the use of alternative therapies? (Select all that apply.)

The Food and Drug Administration (FDA) does not test or regulate active ingredients.

The incidental ingredients are clearly marked on the label.

The dosage contained in each tablet may vary greatly.

No alternative therapies have been found to be effective.

Advertising of alternative products is not as restrictive or accurate.

Ans:

A, C, E Feedback: Alternative products are not controlled or tested by the FDA and advertising is not as restrictive or accurate as with classic drugs. Incidental ingredients are often unknown and strength of tablets may vary within the bottle depending on the conditions under which they were grown. While some alternative therapies have been found to be effective, there are others who have not been studied.

21.

The nurse provides teaching to the patient using herbal therapies and includes what important information related to the effects of the herbal therapy?

They can interact with prescription drugs.

They always contain known ingredients.

They are natural so they are effective and safe.

The ingredients are natural, meaning toxicity is not a concern.

Ans:

A Feedback: Herbal therapies can produce unexpected adverse effects and toxic reactions, can interact with prescription drugs, and can contain various unknown ingredients that alter the therapies’ effectiveness

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

and toxicity. 22.

When patients do not understand the information provided with their medication, whose responsibility is it to help them sort through and comprehend the meaning?

Care giver

Nurse

Patient

Physician

Ans:

B Feedback: Many pharmacies provide written information with each drug that is dispensed, but trying to organize these sheets of information into a usable and understandable form is difficult for many patients. The nurse is often the one who needs to sort through the provided information to organize, simplify, and make sense of it for the patient.

23.

The nurse is providing an inservice on alternative therapies for peers and explains that the term alternative therapies includes what?

Holistic drug therapy

Hospice care

Nondrug measures

Home care

Ans:

C Feedback: Herbal medicines and alternative therapies are found in ancient records and have often been the basis for discovery of an active ingredient that is later developed into a regulated medication. Today, alternative therapies can also include non-drug measures, such as imaging and relaxation. Options A, B, and D are not included in alternative therapies.

24.

The patient calls the clinic and talks to the nurse saying, I found the same drug the provider prescribed on the Internet and it is much cheaper. Is it safe for me to order my drug from this site? What is the nurse’s best response?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

It is usually safe to order drugs from Internet Web sites if it is a reliable site.

Most drugs ordered online come from another country and are safely used there.

The drug you get will be the same chemical prescribed but the dosage may differ.

The Food and Drug Administration (FDA) has issued warnings to consumers about the risk of taking unregulated drugs.

Ans:

Feedback: The FDA has begun checking these drugs when they arrive in this country and have found many discrepancies between what was ordered and what is in the product, as well as problems in the storage of these products. Some foreign brand names are the same as brand names in this country but are associated with different generic drugs. The FDA has issued many warnings to consumers about the risk of taking some of these drugs without medical supervision, reminding consumers that they are not protected by U.S. laws or regulations when they purchase drugs from other countries. 25.

With the need to protect our environment, what is it now important for the nurse to teach patients to do?

Dispose of drugs no longer used on an annual basis.

Flush drugs down the toilet.

Bury unused in the yard.

Throw unused pill bottles in the trash in original containers.

Ans:

A Feedback: Patients should go through their medicine cabinet annually and dispose of drugs no longer used. Unused drugs should not be flushed down the toilet or buried in the yard because they seep into the community water supply. Pills should be removed from their bottle and mixed with an undesirable substance to prevent someone from using the medication if found.

26.

The nurse receives a call from a frantic mother saying, My child swallowed some of my birth control pills. Should I give Ipecac? What is the nurse’s best response?

Yes, give Ipecac and follow the dosage directions on the bottle.

Ipecac is not effective for this use so you should not give it to your child.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Give the Ipecac only if you are absolutely sure your child swallowed the pills.

No, don’t give Ipecac because it will cause your child to vomit and make a mess.

Ans:

Feedback: Ipecac is a drug that the Food and Drug Administration tested in 2003 and found, despite its use for many years, that it was not effective in inducing vomiting in children suspected of poisoning. As a result, it is no longer used. The mother should be instructed not to give it and to call poison control to get up-to-date instructions on how to deal with this emergency. Whether the pills were swallowed, this child requires appropriate intervention because it is better to err on the side of caution. Making a mess is not a concern. 27.

The patient tells the nurse that he or she has begun ordering his or her medications over the Internet because it is cheaper. What statement made by the nurse in response to this information is accurate?

All drugs are manufactured with the same quality controls.

Any drug that is shipped into this country is safe to use.

Foreign drugs may have the same name as domestic drugs, but they are not the same drug.

If you order from Canada or Mexico, the drugs are safe because they undergo testing.

Ans:

C Feedback: The Food and Drug Administration has begun checking these drugs when they arrive in this country and have found many discrepancies between what was ordered and what is in the product, as well as problems in the storage of these products. Some foreign brand names are the same as brand names in this country but are associated with different generic drugs. Options A, B, and D are incorrect because not all drugs are manufactured the same and they are not always safe coming from another country.

28.

The increasing number of patients who go to their health care provider and request a drug they have seen advertised on television or in a magazine has created what continuing challenge to health care providers?

Treating infections appropriately

Treating sicker patients

Prescribing cost-effectively

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Staying knowledgeable about drug therapy

Ans:

Feedback: As the marketing power for prescription drugs continues to grow, the health care provider must be constantly aware of what patients are seeing (or reading), what the commercials and ads are promising, and the real data behind the indications and contraindications for these hot drugs. It is a continuing challenge to stay up-to-date and knowledgeable about drug therapy. 29.

Ipecac, formerly used as the drug of choice by parents for treatment of suspected poisoning in children, was tested by the Food and Drug Administration (FDA) in 2003. What was the finding of this testing?

Ipecac is ineffective for its intended use.

Ipecac is the safest treatment for poisoning in children.

Ipecac was grandfathered in as an ineffective drug.

Ipecac induces vomiting.

Ans:

A Feedback: Ipecac, a formerly standard over-the-counter drug, was used for many years by parents to induce vomiting in children in cases of suspected poisoning or suspected drug overdose. The drug was finally tested and in 2003, the FDA announced that it was not found to be effective for its intended use. Although it was grandfathered in as an effective drug, this was not what the study researched. Ipecac is not effective and does not consistently induce vomiting.

30.

Federal guidelines state that when advertising a drug, if the company states what the drug is used for, what other information must also be included in the advertisement? (Select all that apply.)

Symptoms

Contraindications

Adverse effects

Precautions

Cost

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

100

B, C, D Feedback: If a drug advertisement states what the drug is used for, it must also state contraindications, adverse effects, and precautions. The advertisement does not have to state symptoms or cost.

31.

The parent of a 2-year-old child is visiting his or her pediatric health care provider and shows the nurse the advertisement for allergy medication found in a magazine in the waiting room saying, This drug sounds like it would be far more effective to treat my son’s asthma and I’d only have to give it once a day. What is the nurse’s best response?

Talk with your health care provider about this drug, but be aware that advertisements do not always provide all the important information you need to know.

Oh, I need to throw that magazine away because so many people show me that ad and it is all complete nonsense with no truth to it at all.

I’ve been seeing amazingly positive results from that medication so you are absolutely right to want to give it to your child.

That drug is dangerous and should not be given to children under the age of 5 unless there are no other good options.

Ans:

A Feedback: The health care provider should make the decision about what medications are to be prescribed, not the nurse. However, the nurse can make the mother aware of the fact that there is often more that goes into choosing the correct drug than the bit of information disclosed in the advertisement. Becoming upset with the mother, agreeing with the mother, or frightening the mother about the medication is the wrong approach for the nurse to use.

32.

The local news has been discussing a specific rare disorder that killed a child in the community this week, describing the symptoms of the disease as including nasal congestion, ear pain, and a cough. The pediatrician’s office is receiving numerous calls asking to make appointments to rule out this rare disease. What is the nurse’s best action?

Prepare a handout that describes the disorder discussed in the news in greater detail.

Tell parents their child is experiencing the common cold and do not need to be seen.

Direct all calls to the local news agency to answer questions and provide details.

Become familiar with the disorder and screen each call for more specific symptoms.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

101

A Feedback: The nurse needs to not only become more familiar with the disorder in the news, but also needs to be prepared to teach parents about the disease of the week to allay fears so a handout with detailed information would allow the parents to have something to consult after leaving the provider’s office. Turning parents away without seeing their child will increase fears and the office will lose credibility for lack of interest in their child’s well-being. Directing calls to the news agencies will not provide parents with essential information. Screening calls without seeing the child could be potentially very dangerous.

33.

The nurse is teaching the patient how to safely use the Internet for health information and includes what information in the teaching plan?

The Web site where information is obtained needs to be evaluated for credibility.

Most information found on the Internet is accurate.

Information on the Internet is most reliable when people give their reviews of the drug.

Only a health care professional can tell whether a Web site is reliable.

Ans:

A Feedback: There are excellent sites for reliable drug information, but each site must be evaluated for credibility and the nurse can teach the patient things to look for to increase confidence in the site. However, a lot of information on the Internet is not accurate; the patient needs to learn how to recognize unreliable information when he or she comes across these sites. Just because a person reviews a drug and gives it multiple stars or a thumbs up does not mean the drug is any more effective or useful in the patient’s care.

34.

The nursing instructor is teaching the class about how prescription drugs become over-the-counter (OTC) drugs and lists what factor as preventing a drug from becoming classified as OTC?

If the patient cannot reliably self-diagnose the condition the drug is intended to treat

If it would mask signs and symptoms of an underlying problem, the drug remains available by prescription only.

If the drug would cause toxic effects if not taken as directed, it remains a prescription drug.

OTC drugs must not have any adverse effects that could harm the patient.

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

102

Feedback: If a diagnosis requires medical intervention, such as hyperlipidemia, which can only be diagnosed through laboratory studies, there is no point in making the drug an OTC medication. Most, if not all, OTC drugs have the capacity to mask signs and symptoms of an underlying disease so this is not a factor in deciding if a drug can be sold OTC. All drugs have the potential for toxic effects if not taken as directed and virtually all drugs have the potential for adverse effects. 35.

The nurse needs to ask what specific questions when collecting a drug history? (Select all that apply.)

Do you take any over-the-counter medications?

Do you take any herbal supplements?

Do you use any alternative therapies?

Do you take any natural supplements or vitamins?

What unusual therapies do you take?

Ans:

A, B, D Feedback: The nurse needs to specifically question the patient’s use of over-the-counter drugs, herbal supplements, natural supplements, and vitamins. Use of terms like alternative therapies or unusual therapies is too vague and may not elicit the kind of information needed.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

103

Chapter 07 - Introduction to Cell Physiology

A researcher is studying chromosomal disorders. What part of the human cell would the researcher be interested in studying?

Cytoplasm

Membrane

Nucleus

Organelles

Ans:

C Feedback: The nucleus of a cell contains all of the genetic material that is necessary for cell reproduction. The nucleus also contains genes or sequences of deoxyribonucleic acid (DNA). Genes are responsible for the formation of messenger ribonucleic acid (mRNA) and transcription RNA, which are involved in production of proteins unique to the cells. This is the area where chromosomal disorders originate. The cell cytoplasm lies within the cell membrane and is the site of activities of cellular metabolism and special cellular functions. The organelles are contained within the cytoplasm and are structures with specific functions. They include the mitochondria, endoplasmic reticulum, free ribosomes, Golgi apparatus, and lysosomes. The membrane is a thin barrier, which separates the intracellular fluid from the extracellular fluid and is essential for cellular integrity; it also maintains cell homeostasis.

Which of these body cells has the greatest number of mitochondria?

Tibia bone cells

Breast tissue

Cardiac muscle

Subcutaneous skin

Ans:

C Feedback: Mitochondria are very abundant in cells that consume energy. The cardiac muscle cells, which must work continually to keep the heart contracting, contain a great number of mitochondria. Milk-producing cells in breast tissue, which are normally dormant, contain very few. Cells of bone and of subcutaneous

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

104

tissue do not consume a great deal of energy; therefore, they have smaller numbers of mitochondria than cardiac muscle. 3.

When hormones, formed within the cell, move across the cell membrane, the process is called what?

Endocytosis

Exocytosis

Phagocytosis

Pinocytosis

Ans:

B Feedback: Exocytosis is the movement of substances such as waste products, hormones, and neurotransmitters out of the cell. Pinocytosis is the movement of nutrients and needed substances into the cell through specific receptors on the cell surface. Phagocytosis involves the destruction of engulfed proteins or bacteria. Endocytosis involves incorporation of material into the cell.

What substances move freely in and out of a cell by diffusion?

Electrolytes

Enzymes

Hormones

Proteins

Ans:

A Feedback: Sodium, potassium, calcium, carbonate, oxygen, bicarbonate, and water move freely in and out of cells. These substances move through channels or pores in the cell membrane through movement from a region of higher concentration to a region of lower concentration. Hormones, enzymes, and proteins are considered carriers. If a substance cannot move freely on its own, it may attach itself to another carrier to be diffused.

5. A)

There can be interference with cancer chemotherapy in what phase of the cell cycle? G0 phase

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G1 phase

G2 phase

S phase

Ans:

105

Feedback: During the G0 phase, the cell is stable. Cells in this phase can interfere with cancer chemotherapy because these drugs usually work on actively dividing cells, leaving resting cells mostly untouched. When the resting cells are stimulated to become active and regenerate, the cancer can return. This is the reason that cancer chemotherapy regimens are complicated and extended over a period of time. In the G1 phase, a cell is stimulated to emerge from its resting phase. During this time, the cell synthesizes the substances needed for DNA formation. The S phase involves the actual synthesis of DNA, and during the G2 phase, the cell produces all the substances that are required for the manufacture of the mitotic spindles. 6.

The pharmacology instructor is discussing the histocompatibility of the cell. What is the importance of a cell’s histocompatibility antigen?

It reproduces cells when other cells die.

It recognizes cells as self-cells that belong in the body.

The antigen produces antibodies to viral invaders.

The antigen stimulates the production of white blood cells.

Ans:

B Feedback: The histocompatibility antigens are proteins that are seen on the top of the cell membrane. T cells use these antigens as the identifying proteins that identify a cell as a self-cell. If these antigens are not present on a cell membrane, the T cells will destroy that cell, determining that it is foreign. The histocompatibility antigens are not involved in reproduction. They do not produce antibodies nor do they stimulate white blood cell production.

A patient on the unit has a deep decubitus ulcer. The family asks why the nurse debrides the ulcer and removes the dead cells. What is the nurse’s best response to explain to the family why debridement is performed?

The lysosomes released by the dead cells in the area continue to kill other cells, destroying more

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tissue. B)

The dead cells no longer contain histocompatible antigens causing a greater inflammatory response.

Removing dead tissue forces oxygen to enter the damaged cells to regenerate them and to promote healing.

The doctor ordered the procedure to be performed so it is done the way it is ordered because orders are always followed.

Ans:

A Feedback: When a cell dies, its cell membrane ruptures and the lysosomes release lysozymes, which dissolve protein. When many cells die, lysozymes accumulate and dissolve the proteins that the dead cells leave behind, but the lysozymes also destroy the cell membrane of healthy cells in the area. Those cells then die, releasing lysozymes, which destroy more cells, and a vicious cycle occurs. A decubitus ulcer is an area of many dead cells, which are killing healthy cells. The area needs to be scraped clean to remove the dead cells so that the lysozymes will stop destroying healthy cells and allow oxygen to return to the area through the capillary bed, which allows healing to occur. Many treatments exist for decubitus ulcers, all of which depend on the return of blood flow to the area and removal of the dead tissue. No procedure should ever be performed only because it was ordered. The nurse should understand why each procedure is needed.

A patient is extremely dehydrated from vomiting and diarrhea causing his or her blood to become hypertonic. What effect does the nurse expect this will have on the red blood cells?

They will swell and eventually rupture.

Red blood cells will migrate to the bone narrow.

The cells will shrink and shrivel, decreasing their oxygen-carrying ability.

The red cells will precipitate out of circulation.

Ans:

C Feedback: A hypertonic solution will draw the water out of the red blood cell, causing it to shrink and shrivel, decreasing the oxygen carrying ability of the red blood cell. A hypotonic solution would result in water moving into the red blood cell, causing it to swell and burst. Red blood cells will not migrate back to the bone marrow or precipitate out of circulation.

The nurse is caring for four patients. Which patient would the nurse expect to have a faster recovery

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period based only on the process of mitosis? A)

A 32-year-old female patient who had surgery for ulcerated colitis

A 72-year-old man who had surgery for colon cancer

A 28-year-old woman who had breast reduction surgery

A 65-year-old man who had surgery for breast cancer

Ans:

A Feedback: Cells lining the GI tract reproduce very quickly (72 hours) compared with breast tissue, which takes 2 to 3 months to reproduce. The older the person is, the longer it will take for recovery due to the aging process that reduces rate of circulation of blood cells carrying oxygen to and from cells.

10.

When chemotherapeutic agents interfere with cellular physiology, it results in what?

Cellular death or alterations

Diffusion

Endocytosis

Homeostasis

Ans:

A Feedback: Drugs may alter the cell membrane, causing the cell to rupture and die or they may deprive the cell of certain nutrients, altering the proteins that the cell produces. This could interfere with normal cell functioning and cell division. Diffusion is the movement of a substance from a region of higher concentration to a region of lower concentration. Endocytosis involves gathering of material into a cell. Homeostasis refers to keeping the cytoplasm stable within the cell membrane. Diffusion, endocytosis, and homeostasis are not the result of chemotherapeutic agents but may be impacted by the agent.

11.

When learning about the physiology of the human body, a student would learn that cellular metabolism takes place where?

Organelles

Mitochondria

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Endoplasmic reticulum

Cytoplasm

Ans:

108

Feedback: The cell cytoplasm lies within the cell membrane and outside the nucleus and is the site of activities of cellular metabolism and special cellular functions. Organelles, mitochondria, and endoplasmic reticulum are all part of the cytoplasm of the cell and each has a specific function that contributes to cellular function. 12.

What is the function of the rough endoplasmic reticulum (ER) within a cell?

Produces proteins

Combines protein with other components of the cytoplasm

Exports protein from the cell

Destroys ribosomes

Ans:

A Feedback: Many granules that contain enzymes and ribosomes, which produce protein, are scattered over the surface of the rough endoplasmic reticulum. Production of proteins, phospholipids, and cholesterol takes place in the rough endoplasmic reticulum. The rough ER segregates (rather than combines) these proteins from other components of the cytoplasm and modifies their structure for a specific function. Rough ER does not transport anything through the cell membrane. Rough ER is studded with ribosomes; it does not destroy them.

13.

What is one purpose of the Golgi apparatus?

Produces bile

Prepares hormones or other substances for secretion-producing excretory granules

Stimulates production of new red blood cells

Produces small carbohydrate molecules

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B Feedback: The Golgi apparatus is a series of flattened sacs that may be part of the endoplasmic reticulum. These structures prepare hormones or other substances for secretion by processing them and packaging them in vesicles to be moved to the cell membrane for excretion from the cell. Golgi bodies do not produce bile. They produce secretory, not excretory, granules and they produce large carbohydrate molecules rather than small ones.

14.

Mitochondria produce energy in the form of what?

Deoxyribonucleic acid (DNA)

Red blood cells

Lactic acid

Adenosine triphosphate (ATP)

Ans:

D Feedback: Mitochondria are rod-shaped power plants within each cell that produce energy in the form of ATP, which allows the cell to function. Red blood cells and DNA are not formed in the mitochondria. If oxygen is not available, lactic acid builds up as a by-product of cellular respiration. Lactic acid leaves the cell and is transported to the liver for conversion to glycogen and carbon dioxide.

15.

The physiology instructor is explaining cell death to the nursing students. The instructor explains that what organelle digests worn or damaged sections of a cell when the cell dies?

Golgi apparatus

Lysosomes

Endoplasmic reticulum

Mitochondria

Ans:

B Feedback: Lysosomes are membrane-covered organelles that contain specific digestive enzymes that can break

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down proteins, nucleic acids, carbohydrates, and lipids. They are responsible for digesting worn or damaged sections of a cell when the membrane ruptures and the cell dies. The Golgi apparatus prepares substances for secretion by processing and packaging them in vehicles to move through the cell membrane. The endoplasmic reticulum provides a large surface for chemical reactions within the cell. Mitochondria are the power plants of the cell. 16.

What is the function of the mitochondria within the cell?

Convert small substances into energy

Convert hormones into secretory substances

Produce energy in the form of adenosine triphosphate (ATP)

Move electrolytes into and out of a cell

Ans:

C Feedback: Mitochondria are rod-shaped organelles that produce energy in the form of ATP for use by cells. They do not convert small substances into energy; they do not convert hormones into secretory substances; and they do not move electrolytes into and out of a cell.

17.

Two types of ribosomes exist within a cell. Ribosomes that are not bound to the endoplasmic reticulum exist throughout the cytoplasm of the cell and produce proteins with what purpose?

Bind themselves to the Golgi apparatus

Bind to produce the endoplasmic reticulum

Denature unnecessary enzymes within the cell

Contribute to the structure of the cell

Ans:

D Feedback: Ribosomes that are not bound to the surface of the endoplasmic reticulum exist throughout the cytoplasm. These free-floating ribosomes produce proteins that are important to the structure of the cell and some of the enzymes that are necessary for cellular activity. Free-floating ribosomes do not bind themselves to Golgi apparatus; produce endoplasmic reticulum; or denature any part of the cell or its contents.

18.

When a cell uses energy to move ions against an electrical or chemical gradient, what is the process

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called? A)

Passive transport

Neutral transport

Cotransport

Active transport

Ans:

D Feedback: Active transport is what happens when cells use energy to move ions against an electrical or chemical gradient. Passive transport is another term for diffusion. There is no such thing as neutral transport. Cotransport is when the sodium ion and the solute are transported in the same direction.

19.

When making a presentation on the cell, what would the students say are the main parts of the cell? (Select all that apply.)

The nucleus

The cytoplasm

The cell membrane

The mitochondria

The organelles

Ans:

A, B, C Feedback: The cell is composed of a nucleus, which contains genetic material and controls the production of proteins by the cell; a cell membrane, which separates the inside of the cell from the outside environment; and cytoplasm, which contains various organelles important to cell function. The mitochondria and the organelles are units within the cytoplasm but are not main parts of the cell.

20.

The cell membrane has embedded within it a series of peripheral proteins that function in several ways. One of these proteins is known as a receptor site. What does this receptor site do? Maintains contact with outside proteins to prevent lysis of the cell wall

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Maintains contact with inside proteins to prevent lysis of the cell wall

Reacts with specific chemicals inside the cell to stimulate a reaction outside the cell

Reacts with specific chemicals outside the cell to stimulate a reaction within a cell

Ans:

112

Feedback: Embedded in the cell membrane are a series of peripheral proteins with several functions. One type of protein located on the cell membrane is known as a receptor site. This protein reacts with specific chemicals outside the cell to stimulate a reaction within a cell. Receptor sites do not prevent lysis of the cell wall nor do they stimulate a reaction outside of the cell. 21.

Proteins within the cell wall allow the passage of several substances into and out of the cell. What is one of these substances?

Calcium

Phosphorous

Magnesium

Manganese

Ans:

A Feedback: Channels or pores within the cell membrane are made by proteins in the cell wall that allow the passage of small substances in or out of the cell. Specific channels have been identified for sodium, potassium, calcium, chloride, bicarbonate, and water; other channels may also exist. Some drugs are designed to affect certain channels specifically. For example, calcium channel blockers prevent the movement of calcium into a cell through calcium channels. Options B, C, and D are not known to have their own channels at this time.

22.

After the cell has produced all substances necessary for the formation of a new cell, mitosis occurs in what phase of the cell cycle?

G0 phase

M phase

S phase

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G2 phase

Ans:

113

Feedback: After the cell has produced all substances necessary for formation of a new cell, or daughter cell, it undergoes cell division. This occurs during the M phase of the cell cycle. During this phase, the cell splits to form two identical daughter cells, a process called mitosis. The S phase involves the actual synthesis of DNA. In the G2 phase, the cell produces all the substances required for manufacture of the mitotic spindles. 23.

During the cell cycle, the cell is stimulated to emerge from its resting phase and enter what stage?

M phase

S phase

G1 phase

G2 phase

Ans:

C Feedback: When a cell is stimulated to emerge from its resting phase, it enters what is called the G1 phase, which lasts from the time of stimulation from the resting phase until the formation of deoxyribonucleic acid (DNA). During this period, the cell synthesizes substances needed for DNA formation. The cell is actively collecting materials to make these substances and producing the building blocks for DNA.

24.

When a substance must attach to another molecule, called a carrier, to move into or out of a cell, it is called what?

Active transport

Osmosis

Passive transport

Facilitated diffusion

Ans:

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Feedback: Sometimes a substance cannot move freely on its own in or out of a cell. Such a substance may attach to another kind of molecule, called a carrier, to be diffused. This form of diffusion, known as facilitated diffusion, does not require energy, only the presence of the carrier. Active transport requires energy to move the substance against the concentration gradient. Osmosis is a special form of diffusion where water moves across a semipermeable membrane from an area low in solutes to one that is higher in solutes to dilute solutes. Passive transport does not require energy to move solutions across a semipermeable membrane and includes diffusion, osmosis, and facilitated diffusion. 25.

A group of students are diagramming the cycle of a cell. What phase would they diagram as actually synthesizing deoxyribonucleic acid (DNA)?

S phase

G0 phase

M phase

G2 phase

Ans:

A Feedback: The next phase, called the S phase, involves the actual synthesis of DNA, which is an energyconsuming activity. The cell remains in this phase until the amount of cellular DNA has doubled. The G0 phase is considered the resting phase of the cell cycle. The M phase is when cell replication occurs. The G2 phase is when the cell produces all substances it needs to replicate.

26.

What is the purpose of the G1 phase of the cell cycle?

Reproduction

Synthesizes substances needed for deoxyribonucleic acid (DNA) formation

Rest

Production of mitotic spindles

Ans:

B Feedback: The G1 phase lasts from the time of stimulation from the resting phase until the formation of DNA.

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During this period, the cell synthesizes substances needed for DNA formation. Mitotic spindles are produced in the S phase; rest is accomplished in the G0 phase; and reproduction is in the M phase. 27.

What is the cell membrane composed of? (Select all that apply.)

Glycolipids

Lysosomes

Cholesterol

Glycoprotein

Phospholipids

Ans:

A, C, E Feedback: The cell membrane is a lipoprotein structure, meaning it is mainly composed of proteins and lipidsphospholipids, glycolipids, and cholesterol; bipolar arrangement of the lipids monitors substances passing in and out of the cell. Lysosomes are organelles within the cytoplasm. Glycoprotein is a distracter.

28.

The Krebs cycle provides a common pathway for the metabolism of nutrients by the body. The Krebs cycle uses carbohydrates, proteins, and what other nutrient to make adenosine triphosphate (ATP)?

NADH + H+

Vitamins

Fat

H2O

Ans:

C Feedback: The mitochondria can take carbohydrates, fats, and proteins from the cytoplasm and make ATP via the Krebs cycle, which depends on oxygen. Cells use the ATP to maintain homeostasis, produce proteins, and carry out specific functions. NADH + H+ is an end-product of glycolysis. Vitamins are not used to make ATP and neither is water.

29.

A patient is discussing a liver transplant with the transplant team. The physician is explaining the effort

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made to match what in the donor tissue? A)

Histocompatability antigens

Lipoproteins

Non-self-markers

Receptor sites

Ans:

A Feedback: The body’s immune system recognizes these proteins and acts to protect self-cells and to destroy nonself-cells. When an organ is transplanted from one person to another, a great effort is made to match as many histocompatibility antigens as possible to reduce the chance that the new body will reject the transplanted organ.

30.

The cell membrane, an integral part of the cell, is essential for what? (Select all that apply.)

Cell movement

Cellular integrity

Cell life

Cell homeostasis

Cell maturation

Ans:

B, C, D Feedback: The membrane is essential for cellular integrity and is equipped with many mechanisms for maintaining cell homeostasis. Options A and E are distracters for this question.

31.

The pharmacology instructor explains to the nursing students that drugs will have the least effect on the cell during what phase of the cell cycle?

G0 phase

G1 phase

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S phase

G2 phase

Ans:

117

Feedback: During the G0 phase, or resting phase, the cell is stable. It is not making any proteins associated with cell division and is basically dormant in terms of reproduction. These cells are functioning to do whatever they are supposed to do. Most drugs, particularly chemotherapy for cancer, work on active cells so cells that are resting are less susceptible to chemical action. The other options are active phases when drugs will be most effective. 32.

The nurse is caring for a patient with acute renal failure with an elevated potassium level. The health care provider orders administration of insulin that causes potassium to return to the cell, thereby lowering serum potassium levels and the risks associated with hyperkalemia. The nurse recognizes this as a type of what?

Passive transport

Active transport

Osmosis

Diffusion

Ans:

A Feedback: Moving potassium back into the cell, an area with a higher concentration gradient than the bloodstream, requires energy. Insulin helps to activate the sodium–potassium pump. Passive transport is a means of moving substances in and out of the cell without the use of energy. Potassium levels are elevated and will not diffuse into the cell independently because potassium levels are higher inside the cell than outside and require energy to cross the concentration gradient. Osmosis involves diffusion of water.

33.

The nurse is caring for a patient with edema caused by escape of fluid from the intravascular compartment to the extracellular compartment. An IV solution will be administered to draw the fluid back into the intravascular compartment. What type of solution will the nurse expect to administer?

Isotonic solution

Hypertonic solution

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Hypotonic solution

Osmotic solution

Ans:

118

Feedback: Hypertonic solutions are those with a higher concentration of solutes than human plasma. They draw water from cells, which would help to draw fluid back into the intravascular space. Hypotonic solutions are fluids that contain a lower concentration of solutes than human plasma, which causes water to be pushed into the cells. Isotonic fluids contain the same concentration of solutes as human plasma and will not cause fluids to shift from one compartment to another. Osmotic solution is a distracter. 34.

The cytoplasm within the cell is stable so that the cell is said to be in what state?

Homeostasis

Activity

Excitability

Mitosis

Ans:

A Feedback: The main goal of a cell is to maintain homeostasis, which means keeping the cytoplasm stable within the cell membrane. Options B, C, and D are distracters for the question.

35.

The patient has been diagnosed with multiple sclerosis, a disease that reduces the amount of available adenosine triphosphate (ATP) in the body. The nurse recognizes that this reduction in ATP is caused by the impact of the disease on what part of the cell?

Cell neuron

Endoplasmic reticulum

Golgi bodies

Mitochondria

Ans:

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Feedback: The mitochondria are rod-shaped power plants within each cell that produce energy in the form of ATP, which allows the cell to function. Inadequate production of ATP would indicate damage to the functioning of the mitochondria. The neuron, endoplasmic reticulum, and Golgi bodies do not produce ATP.

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Chapter 08 - Antiinfective Agents

A patient asks the nurse how an anti-infective produces a therapeutic effect. What key point will the nurse explain to this patient?

Drugs used to treat infections date back to the 17th century.

All anti-infectives work in the same way to destroy organisms.

Selective toxicity determines the appropriate drug dosage needed.

The goal of anti-infectives is to interfere with normal functioning of the organism.

Ans:

D Feedback: The goal of anti-infectives is to interfere with the normal function of the invading organism to prevent it from reproducing and to cause cell death without affecting host cells. Each class of anti-infectives works in a different way, but all have the same goal. Because bacteria cells have a slightly different composition than human cells, the bacteria are destroyed without interfering with the host. The first drugs used to treat systemic infections were developed in the early 20th century. The term selective toxicity refers to the ability to affect certain proteins or enzyme systems that are used by infecting organisms, but not by human cells.

The nursing student learns about anti-infectives in class and demonstrates the need to study more when making what statement about how anti-infectives work?

Some anti-infectives interfere with biosynthesis of the pathogen’s cell wall.

Some anti-infectives prevent the cells of the organism from using essential substances.

Many anti-infectives interfere with the steps involved in protein synthesis.

Some anti-infectives interfere with ribonucleic acid (RNA) synthesis in the cell leading to cell death.

Ans:

D Feedback: Some anti-infectives interfere with deoxyribonucleic acid (DNA) synthesis, not RNA synthesis, in the cell, leading to inability to divide and causing cell death. The fluoroquinolones work in this way. The other three options are correct and would not indicate the need for further study time. Penicillins

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interfere with biosynthesis of the cell wall, sulfonamides prevent organisms from using substances essential to their growth and development, whereas aminoglycosides, macrolides, and chloramphenicol interfere with protein synthesis. 3.

The nurse administers a drug to treat Neisseria gonorrhoeae that works on no other bacteria. How would the nurse describe this drug?

Broad spectrum

Narrow spectrum

Bactericidal

Bacteriostatic

Ans:

B Feedback: Without knowing the name of the antibiotic and how it works to treat N. gonorrhoeae, the only thing that can be said is that it is a narrow-spectrum anti-infective because it only treats one specific organism. Broad-spectrum anti-infectives treat multiple organisms. The name of the drug and how it works would need to be known to determine whether it is bacteriocidal or bacteriostatic.

The nurse has provided patient teaching for a patient who will be discharged to home on an antiinfective. What statement made by the patient indicates the nurse needs to provide additional teaching concerning the use of anti-infectives?

Antibiotics will not help me when I have a viral infection.

A bacterial culture will be done before antibiotics are prescribed for me.

I could develop diarrhea as a result of taking an antibiotic.

I will stop taking the antibiotic as soon as I feel better.

Ans:

D Feedback: Compliance with anti-infective therapy is a concern. Patients tend to stop taking the drugs when they begin to feel better. A nurse should instruct the patient to take the entire course of prescribed drug to ensure a sufficient period to rid the body of pathogens and to help prevent the development of resistance. Antibiotics are not prescribed for viral infections. It is important that cultures be performed before antibiotics are prescribed to determine what organism is causing the infection so that the correct drug is prescribed. Diarrhea is the most common adverse effect from anti-infectives.

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The nurse attends a class on preventing resistance to anti-infectives and learns that the critical concept in preventing the development of resistant strains of microbes is what?

Exposure of pathogens to an antimicrobial agent without cellular death

Drug dosages that are below a therapeutic level

The duration of drug use

Frequency of drug ingestion

Ans:

C Feedback: Exposure of pathogens to an antimicrobial agent without cellular death leads to the development of resistance so it is important to limit the use of these agents to treat pathogens with a known sensitivity to the drug being used. Drug dosages are also important in preventing the development of resistance. However, the duration of drug use is critical to ensure that microbes are completely eliminated and not given the chance to grow and develop resistant strains. It is hard to convince patients that they must always complete the entire course of antimicrobial agents when they begin to feel better, because stopping early favors the emergence of drug-resistant strains.

The pathophysiology class is learning how microorganisms develop resistance to anti-infective drugs. What is one way the nursing students would learn that microorganisms develop resistance to antiinfective drugs?

By rearranging their deoxyribonucleic acid (DNA) to produce membranes that are permeable to the drug

By producing an enzyme that stimulates the drug

By changing the cellular membrane to allow the drug entry into the cell

By altering binding sites on the membrane or ribosomes so that the drug cannot enter the cell

Ans:

D Feedback: Microorganisms have developed resistance by changing cellular permeability to prevent the drug from entering the cell by altering binding sites on the membranes or on ribosomes so the drug can no longer be accepted and by producing enzymes that deactivate the drug. Microorganisms have not been found to be able to rearrange their DNA to change their membrane structure.

The nurse, writing a care plan for a patient on an aminoglycoside, includes what intervention to reduce

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the accumulation of the drug in the kidney? A)

Avoid caffeine intake.

Increase fluids.

Decrease activity.

Increase consumption of fruits and vegetables.

Ans:

B Feedback: To prevent the accumulation of anti-infective drugs in the kidneys, which can damage the kidney, patients taking anti-infective drugs should be well hydrated. Decreasing the dosage will likely reduce the therapeutic action and increase risk of resistance. There is no evidence of association between caffeine intake and drug accumulation in the kidney. Decreasing activity and increasing fruits and vegetables in the diet would not be effective in decreasing drug accumulation.

When conducting patient teaching about using antibiotic medications, what is it critical for the nurse to include to help stop the development of resistant strains of microorganisms?

Antibiotics should be used quickly to treat colds and other viral infections before the invading organism has a chance to multiply.

Antibiotic dosage should be reduced and used for shorter periods of time to reduce unnecessary exposure to the drug.

Prescriptions for antibiotics should be readily available so they can be filled as soon as patients suspect they have an infection.

It is very important to take the full course of an antibiotic as prescribed and not save remaining drugs for future infections.

Ans:

D Feedback: Teaching patients to take the full course of their antibiotic as prescribed can help to decrease the number of drug-resistant strains. Antibiotics should only be used to treat bacterial infections that have been cultured to identify the antibiotic sensitivity and then patients should be instructed to use the antibiotic for the prescribed course, which will help to eliminate drug-resistant strains. Reducing dosage and time intervals increases the chance for drug resistance because anti-infectives are most effective when taken exactly as indicated.

A patient is told that he or she will have to undergo extensive dental surgery. The dentist prescribes a

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course of antibiotic therapy before beginning the procedures and continuing for 5 days after the procedure. What is this is an example of? A)

Chemotherapy

Curative treatment

Prophylaxis

Synergism

Ans:

C Feedback: In a situation where an infection is likely to occur, antibiotics can be used to prevent it. This is called prophylaxis. Synergism is using two antibiotics at the same time to improve their effectiveness. Chemotherapy is the use of drugs to destroy abnormal cells, usually cancer cells. Curative treatment involves treating an actual infection to promote a cure.

10.

A patient is receiving meropenem (Merrem IV). What drug-related reaction will the nurse assess for?

Gastrointestinal toxicity

Hepatic toxicity

Nephrotoxicity

Neurotoxicity

Ans:

A Feedback: This drug has been associated with potentially fatal pseudomembranous colitis, which affects the gastrointestinal tract. This drug is not associated with liver, kidney, or nerve toxicity.

11.

A patient is admitted to the unit and the nurse assesses whether he or she is at increased risk for infection when what factors are determined? (Select all that apply.)

Malnutrition

Hypertension

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Suppression of immune system

Advanced age

Decreased amylase levels

Ans:

A, C, D

125

Feedback: Factors that suppress the host defense mechanisms include malnutrition, suppression of immune system, and advanced age. Hypertension does not predispose a person to infection neither does a decreased amylase level. 12.

The nurse is caring for a patient receiving penicillin. The nurse knows this type of antibiotic works by what mechanism?

Inhibiting growth and development of the organism

Inhibiting protein synthesis

Inhibiting cell wall biosynthesis

Stimulating bacterial reproduction

Ans:

C Feedback: Some anti-infectives interfere with biosynthesis of the bacterial cell wall. Because bacterial cells have a slightly different composition than human cells, this is an effective way to destroy the bacteria without interfering with the host (see Box 8.2). The penicillins work in this way. The sulfonamides inhibit growth and development of the organism’s cells. Aminoglycosides, macrolides, and chloramphenicol interfere with protein synthesis. Fluoroquinolones interfere with synthesis of deoxyribonucleic acid, resulting in the inability to reproduce.

13.

A nurse collects a culture sample of infected tissue. What does the result of testing the culture contribute to the patient’s care?

Identifies the specific organism causing the infection

Pinpoints the exact site of the infection

Identifies individualized patient factors contributing to infection

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Describes the length of time the patient has experienced infection

Ans:

126

Feedback: A culture is collected to identify the causative organism of an infection. It can help with determining the site of infection in some cases if the infection is limited only to the site where the culture is collected. It does not individualize patient factors contributing to infection. These must be determined through assessment. It cannot indicate how long the patient has had the infection, which is often determined by the white blood cell count and differential. 14.

A patient calls the clinic to talk to the nurse. The patient states that he or she saw the physician last week and was prescribed penicillin for a strep throat. The patient goes on to say that they feel so much better they stopped taking the drug today, even though there are a few pills left. What is the nurse’s best response?

Okay, thank you for letting me know. I will document in your medical record that the treatment was effective.

It is important that you take all the medication so all the germs are killed. Otherwise they could come right back and be even stronger.

What you have described is the halo effect of the drug, making you feel better when you are still infected. You’ll feel sick again when the drug is out of your system.

You will need to come to the clinic and be evaluated by your physician to make sure the infection is really gone.

Ans:

B Feedback: The duration of drug use is critical to ensure that the microbes are completely, not partially, eliminated and are not given the chance to grow and develop resistant strains. The nurse must explain the importance of taking all of the prescribed medication and should not agree with the patient. This is not related to a halo effect and the patient may feel well until drug levels decrease rather than being completely eliminated from the body. The patient does not need to be seen if the infection is responding to treatment, but they must take the rest of the antibiotic.

15.

When administering anti-infectives to patients, the nurse is aware of the risk for what potentially fatal adverse effect?

Gastrointestinal toxicity

Eighth cranial nerve damage

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Anaphylaxis

Toxic effects on the kidney

Ans:

127

Feedback: Anaphylaxis is an acute, systemic allergic response to a substance that can be fatal if medical intervention does not occur almost immediately because the airway closes due to tissue edema making it impossible to breathe. Gastrointestinal toxicity, hearing loss due to eighth cranial nerve damage and, toxic effects to the kidney are all adverse effects that may be seen with some anti-infectives. Although these adverse effects can be serious, they are not usually fatal. 16.

A group of nursing students are giving a report on the emergence of drug-resistant microbial agents. What could the students cite as a good way to minimize the emergence of drug-resistant microbial agents? (Select all that apply.)

Avoid the use of broad-spectrum antibacterial drugs when treating trivial or viral infections.

Use narrow-spectrum agents if they are thought to be effective.

Do not use vancomycin unnecessarily.

Antibiotics are best started before the culture and sensitivity report returns.

Administer the smallest effective dosage available.

Ans:

A, B, C Feedback: Exposure to an antimicrobial agent leads to the development of resistance, so it is important to limit the use of antimicrobial agents to the treatment of specific pathogens known to be sensitive to the drug being used. Drug dosage is important in preventing the development of resistance. Doses should be high enough and the duration of drug therapy should be long enough to eradicate even slightly resistant microorganisms. It is best to wait until cultures return before initiating antibiotics when possible, but patients with severe infections may be started on broad -spectrum antibiotics while waiting for culture results.

17.

The home care nurse is taking care of a patient on IV vancomycin for cellulitis of the left calf. How would the nurse explain how microorganisms develop resistance to anti-infective medications?

Microorganisms can alter the blood supply to the infection.

Microorganisms can stop the cell from reproducing.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Microorganisms produce a chemical that acts as an antagonist to the drug.

Microorganisms change their cell membrane to make it look like the drug.

Ans:

128

Feedback: Microorganisms develop resistance in a number of ways, including the following: changing cellular permeability to prevent the drug from entering the cell or altering transport systems to exclude the drug from active transport into the cell; altering binding sites on the membranes or ribosomes, which then no longer accept the drug; and producing a chemical that acts as an antagonist to the drug. Microorganisms do not alter the blood supply to the infection, stop a cell from reproducing, or change the appearance of the cell membrane. 18.

Overuse of anti-infective agents is known to contribute to the onset of superinfections in the body. What is a causative agent of a superinfection?

Escherichia coli

Probenecid

Protozoans

Pseudomonas

Ans:

D Feedback: Common superinfections include vaginal or gastrointestinal yeast infections, which are associated with antibiotic therapy, and infections caused by Proteus and Pseudomonas throughout the body, which are a result of broad-spectrum antibiotic use. Probenicid is a medication, not a causative organism. Protozoa and E. coli do not usually cause superinfections.

19.

The pharmacology instructor is explaining combination drugs to the nursing class. The instructor tells the students that a combination of anti-infective agents may be used for several reasons. What is one of them?

Some drugs are synergistic.

Increased likelihood of killing the microorganisms

Requires larger doses of the drugs

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Absorption of drugs increased

Ans:

129

Feedback: Some drugs are synergistic, which means that they are more powerful when given in combination. The health care provider may be encouraged to use a smaller dosage of each drug, leading to fewer adverse effects, but still having a therapeutic impact on the pathogen. Many microbial infections are caused by more than one organism; each pathogen may react to a different anti-infective agent. Combination drugs do not have a better chance at killing the microorganism and they do not increase the absorption of the drugs. 20.

Bactericidal agents do not prevent compounds fight infection and destroy microorganisms by inhibiting what?

Protein synthesis

Deoxyribonucleic acid (DNA) replication

Cell wall synthesis

Leukocytes

Ans:

A Feedback: Some anti-infectives are so active against the infective microorganisms that they actually cause the death of the cells they affect. These drugs are said to be bactericidal. Bactericidal action inhibits protein synthesis. Bacteriocidal agents do not prevent DNA replication , do not inhibit cell wall synthesis, and do not impact leukocytes.

21.

The nurse is caring for a child who weighs 30 kg. The physician orders gentamicin (Garamycin) tid. The recommended dosage range is 6 to 7.5 mg/kg/day. Why is it important to give a dosage within this recommended range? (Select all that apply.)

To avoid toxic effects

To protect other patients

To reduce the risk of drug-resistant organisms

To eradicate the bacteria

To promote lactic acid removal

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

130

A, B, C, D Feedback: By administering the correct dosage, you avoid overdosage and reduce the risk of toxic effects. The correct dosage reduces the risk of creating drug-resistant organisms; it also protects both the patient and the other patients who might be susceptible to the drug-resistant organisms as well. The proper dosage is needed to eradicate the bacteria. Lactic acid removal is not related to the proper dosage and is a distracter for this question.

22.

The nurse is administering an anti-infective to a pediatric patient. What will the nurse assess for related to adverse effects in this patient?

Cardiovascular function and perfusion

Hydration and nutritional status

Liver and pancreatic function

Rest and sleep status

Ans:

B Feedback: Because children can have increased susceptibility to the gastrointestinal and nervous system effects of anti-infectives, monitor hydration and nutritional status carefully. Patients should be encouraged to drink fluids. Cardiovascular, hepatic, and pancreatic function are not at greater risk in children. Rest and sleep status are important but are not impacted by anti-infectives.

23.

A parasitic infection is suspected. What type of culture is the nurse likely to collect?

Blood

Urine

Stool

Sputum

Ans:

C Feedback:

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131

When investigators search for parasitic sources of infection, the stool is examined for ova and parasites. Blood, urine, and sputum are unlikely to reflect signs of parasitic infection. 24.

The nurse is caring for a patient receiving IV aminoglycosides for an intractable infection in his or her leg. What would it be important for the nurse to monitor this patient for?

Visual disturbances

Liver dysfunction

Serum glucose levels

Renal dysfunction

Ans:

D Feedback: When patients are taking aminoglycosides, it is important they be monitored closely for any sign of renal dysfunction. Aminoglycosides do not generally cause visual disturbances, liver dysfunction, or altered serum glucose levels.

25.

The nurse collects the past medical history of a patient new to the clinic. The patient states he or she is allergic to penicillin. What would the nurse question next? (Select all that apply.)

What signs and symptoms were displayed with the reaction?

What treatment was required to control the allergic reaction?

How was the medication administered?

How many dosages were administered before the reaction occurred?

Had the medication ever been prescribed before the time when the reaction occurred?

Ans:

A, D, E Feedback: It is important to determine what the allergic reaction was and when the patient experienced it (e.g., after first use of drug, after years of use). If she had been prescribed this medication before with no reaction and then had a reaction the next time it was prescribed, this would be important information to know. Some patients report having a drug allergy, but closer investigation indicates that their reaction actually constituted an anticipated effect or a known adverse effect to the drug. It would not necessarily be important to find out what was done to stop the reaction or who the caregiver was at the time of the reaction or what type of allergic reaction it was.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

26.

132

A patient comes to the clinic to talk with the nurse about planned overseas travel. The patient tells the nurse that he or she is planning a trip to an area of the world where malaria is common. He wants to know how to prevent contracting the disease. What should the nurse respond?

We can ask the physician to give you some anti-infectives in case you get malaria.

We can ask the physician for some anti-infectives for you to take prophylactically.

Don’t worry, if you get malaria they have some good doctors where you are going.

If you get malaria, you can always be treated on the way home.

Ans:

B Feedback: Some anti-infectives are used as a means of prophylaxis when patients expect to be in situations that will expose them to a known pathogen, such as travel to an area where malaria is endemic, or undergoing oral or invasive gastrointestinal surgery in a person who is susceptible to subacute bacterial endocarditis. After the patient contracts malaria, it is much harder to treat so he would not start the medication or obtain treatment after being infected.

27.

The nurse is caring for a patient who is receiving a broad-spectrum anti-infective agents. The nurse would assess the patient for what common adverse effect of broad spectrum anti-infective agents?

Destruction of pathogens

Decrease in infection

Destruction of the normal flora

Decrease in inflammation

Ans:

C Feedback: One offshoot of the use of anti-infectives, especially broad-spectrum anti-infectives, is destruction of the normal flora resulting in superinfections. Destruction of pathogens is the therapeutic effect and not an adverse effect resulting in a decrease in infection. Inflammation is reduced by resolution of infection.

28.

Selective toxicity, or the ability to affect certain proteins or enzyme systems in the infecting organism, is a much sought-after quality in an anti-infective agent. How many anti-infective agents have this quality?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

75%

50%

25%

Ans:

133

Feedback: Although anti-infective agents target foreign organisms infecting the body of a human host, they do not possess selective toxicity, which is the ability to affect certain proteins or enzyme systems used by the infecting organism but not by human cells. Because all living cells are somewhat similar, however, no anti-infective drug has yet been developed that does not affect the host. Therefore Options A, B, and C are incorrect. 29.

The nursing instructor teaches the students about selective toxicity when one of the students asks, What happens when a drug doesn’t have selective toxicity? What is the instructor’s best response?

Healthy cells are damaged.

All pathogens are destroyed in the body.

Reduced enzymes are produced.

Protein malnutrition

Ans:

A Feedback: When a drug does not display selective toxicity, healthy cells are damaged because the drug does not specifically target only the pathogen. Anti-infectives work by a variety of different means so one drug is not likely to kill every type of pathogen in the body. Selective toxicity does not impact enzyme production or cause protein malnutrition.

30.

The nursing instructor is talking with the students about anti-infective medication and explains that drugs that are very selective in their actions are said to be what?

Broad spectrum

Narrow spectrum

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Bactericidal

Bacteriostatic

Ans:

134

Feedback: Some anti-infectives are so selective in their action that they are effective against only a few, or possibly only one, microorganism with a very specific metabolic pathway or enzyme. These drugs are said to have a narrow spectrum of activity. They are not called broad spectrum, which applies to a drug with little selectivity; bactericidal, which is a substance that causes death of bacteria; or bacteriostatic, which prevents replication of a bacterium. 31.

The nurse administers polymyxin B to a patient with a gram-negative bacterial infection. What symptoms would cause the nurse to suspect drug fever, hold the medication, and call the health care provider immediately? (Select all that apply.)

Fever

Dizziness

Ataxia

Increased activity

Reduced urine output

Ans:

A, B, C, E Feedback: The actions of polymyxin B on cell membranes means it can be toxic to the human host, leading to nephrotoxicity, neurotoxicity (e.g., facial flushing, dizziness, ataxia, paresthesias, drowsiness), and drug-related fever and rash. This drug is reserved for infections that do not respond to less toxic drugs; the nurse needs to be alert for serious reactions and hold the drug until notifying the provider.

32.

The charge nurse, working on a pediatric unit, sees an order was written to administer chloramphenicol (Chloromycetin) to one of the children assigned to a new graduate nurse. The charge nurse would make sure the new graduate was familiar with what possible adverse effects of this medication? (Select all that apply.)

Gray syndrome

Bone marrow depression

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Aplastic anemia

Liver failure

Hearing loss

Ans:

A, B, C

135

Feedback: Chloramphenicol (Chloromycetin), an older antibiotic, prevents bacterial cell division in susceptible bacteria. Because of the potential toxic effects of this drug, its use is limited to serious infections for which no other antibiotic is effective. Chloramphenicol produces a gray syndrome in neonates and premature babies, which is characterized by abdominal distention, pallid cyanosis, vasomotor collapse, irregular respirations, and even death. In addition, the drug may cause bone marrow depression, including aplastic anemia that can result in death. Liver failure and hearing loss are not usually associated with this drug. 33.

The patient in the clinic receives a prescription for an anti-infective to treat a urinary tract infection. The patient asks the nurse, Would you ask the doctor to give me refills on this prescription? I get a urinary tract infection almost once a year it seems and I’d like to have a refill I can store for the next time so I don’t have to come back to the clinic. What is the nurse’s priority response?

Sure, I’d be glad to ask. How many refills would you like to have?

Most medications, if not used, should be discarded after a year so it is better to get a new prescription next year when you need it.

This antibiotic doesn’t destroy every pathogen that could cause a urinary tract infection so it is better to get the right antibiotic next time.

Saving antibiotics for another time and self-diagnosing when antibiotics are needed lead to resistant organisms that no longer respond to drugs.

Ans:

D Feedback: Option A is incorrect because the patient should not be given refills to use indiscriminately. The remaining options are all important teaching points for this patient, but the priority is teaching this patient about drug-resistant organisms and how they can be prevented, as well as what happens if an infection results from a resistant organism.

34.

The nurse admits a patient with septicemia (i.e., infection in the bloodstream). The patient denies any allergies and the doctor has ordered cefuroxime based on blood culture results that report the active pathogen is susceptible to this drug. The patient asks what antibiotic was ordered, and when the nurse says cefuroxime, the patient says, Call my doctor and tell him I want vancomycin because I’ve been reading about drug-resistant bacteria and I don’t want to take any chances. What is the nurse’s best

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136

response? A)

Vancomycin is a powerful drug with many adverse effects and it is reserved for when no other drug will work against the infection.

There are some resistant infections that require vancomycin so you are right to prefer a stronger antibiotic.

I appreciate your concern but your doctor ordered the right medication for you so don’t worry about it.

You can’t believe anything you read on the Internet because most of it is just someone’s opinion and not fact.

Ans:

A Feedback: The patient is right in saying that vancomycin is effective against drug-resistant bacteria but needs help to understand that he or she does not have a resistant infection as indicated by the culture and sensitivity and that use of such a powerful drug when it is not needed increases risk of developing a vancomycin-resistant infection. It is never right to tell a patient not to worry because they have every right to participate in his or her own care and should not be patronized. Although some information on the Internet may not be accurate, it would be incorrect to say it is all just someone’s opinion and not fact, especially given that the patient’s information is accurate.

35.

The mother brings her 18-month-old toddler to the pediatrician because the child has a fever and has been tugging on his or her left ear. Examination of the tympanic membrane confirms an ear infection and the toddler also has a cold with nasal congestion, rhinorrhea, and a cough. The provider tells the mother to apply heat and gives her a prescription for an otic anesthetic to make the ear more comfortable until the infection resolves. The mother is not happy and says she wants a prescription for an antibiotic. What important teaching points will the nurse include in the teaching plan? (Select all that apply.)

Ear infections that accompany viral respiratory infections do not respond to antibiotics.

Habitual use of antibiotics for viral infections contribute to development of resistant strains.

Adverse effects from antibiotics in children can cause diarrhea and dehydration.

Antibiotics will only be prescribed if a culture indicates the presence of bacteria in the ear.

The pediatrician knows more than the mother and she should trust what she is being told.

Ans:

A, B, C Feedback:

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137

When the child has a viral respiratory infection, the organism involved in ear infections is usually viral as well. As a result, antibiotics will have no effect on the infection that will resolve independently and only comfort care is indicated. Habitual use of antibiotics for viral infections contributes to the development of resistant strains of bacteria and the adverse effects can make the child more uncomfortable causing diarrhea and dehydration. Cultures of ear fluid are almost never done because it would be an invasive procedure to remove fluid from the middle ear. It is never right for the nurse to patronize the mother, who has every right to advocate for her child, and it is more important she understand why the antibiotic is not being prescribed than telling her the pediatrician knows more.

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138

Chapter 09 - Antibiotics

A 32-year-old female patient is admitted to the floor with a superinfection. Her orders read tigecycline (Tygacil) 100 mg IV followed by 50 mg IV every 12 hours infused over 30 to 60 minutes for 5 days. What would be important for the nurse to educate this patient about?

Analgesics

Antihistamines

Contraceptives

Decongestants

Ans:

C Feedback: Many antibiotics interfere with the effectiveness of oral contraceptives and unplanned pregnancies can occur. Women should be advised to use a barrier form of contraceptives when taking this drug. No known serious drugdrug interactions involve analgesics, antihistamines, or decongestants.

A patient with a gram-negative infection is being treated with an aminoglycoside. What system should the nurse expect to monitor closely while the patient is taking this medication?

Respiratory system

Ophthalmic system

Renal system

Musculoskeletal system

Ans:

C Feedback: Renal function should be tested daily because aminoglycosides depend on the kidney for excretion and if the glomerular filtration rate (GFR) is abnormal it may be toxic to the kidney. The results of the renal function testing could change the daily dosage. Aminoglycosides do not usually adversely affect respiratory, hepatic, or musculoskeletal function, although baseline data concerning these systems is always needed.

How would the nurse describe selective toxicity?

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139

Selective toxicity interferes with a biochemical reaction common to many different organisms.

Selective toxicity will decrease invading bacteria by interfering with the pathogens’ ability to reproduce.

Selective toxicity will eliminate bacteria by interrupting protein synthesis and damaging the pathogen’s cell wall.

Selective toxicity is the ability of the drug to kill foreign cells without causing harm to one’s own body cells.

Ans:

D Feedback: The choice of antibiotics in a clinical situation is determined by assessing which drug will affect the causative organism and lead to the fewest adverse effects. Selective toxicity is the ability of the drug to kill foreign cells without causing harm to the human body cells. How the antibiotic works to kill bacteria varies by drug type and may reduce the ability to reproduce, damage the cell wall, or interfere with a biochemical reaction, but this is a description of how the antibiotic works and does not describe selective toxicity

A local bioterrorism medical team is learning about germ warfare. The team is instructed that a fluoroquinolone may be used to prevent an outbreak of anthrax infection. What fluoroquinolone would the nurse be most likely to administer for this purpose?

Ciprofloxacin (Cipro)

Gemifloxacin (Factive)

Norfloxacin (Noroxin)

Sparfloxacin (Zagam)

Ans:

A Feedback: Ciprofloxacin (Cipro) is the most widely used fluoroquinolone and is indicated for the prevention of anthrax infection. Gemifloxacin and sparfloxacin are most useful in treating acute episodes of chronic bronchitis and community-acquired pneumonia. Norfloxacin is recommended only for certain types of urinary tract infections.

A clinic nurse is caring for a 66-pound child who has acute otitis media. The physician has ordered ceftibuten (Cedax) 9 mg/kg per day PO for 10 days. The drug comes in an oral suspension of 90 mg/5 mL. How many mL will the nurse administer?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

5 mL

10 mL

15 mL

20 mL

Ans:

140

Feedback: First, using the formula: 2.2 lb/1 kg = 66 lb/X kg, determine the child’s weight in kg (66/2.2 = 30 kg). Next, determine the desired dose by using the formula: amount of prescribed drug times weight in kg (9 mg/kg times 30 kg = 270 mg). To determine the volume of medication to administer, use the formula: amount of drug available/volume available = amount of drug prescribed/volume to administer (90 mg/5 mL = 270 mg/X mL, 90mg/(X) = 1,350 mg/mL, X = 15 mL). 6.

A 78-year-old woman, who lives alone and is forgetful, is being seen by her home health nurse. In reviewing the patient’s medication, the nurse discovers that the patient is taking Azithromycin (Zithromax) for urethritis. Why would this be a good choice of antibiotics for this patient?

The half-life of the drug is 3 to 7 hours.

It is taken only once a day.

It has very few adverse effects.

It can be given without consideration to drugdrug interactions.

Ans:

B Feedback: Given that the patient is forgetful and lives alone, a daily dose would likely promote improved compliance. Azithromycin can be administered once daily because the half-life is 68 hours. Azithromycin is associated with GI adverse effects and can cause pseudomembranous colitis; neurological symptoms can occur as well. Azithromycin (Zithromax) may adversely interact with cardiac glycosides, oral anticoagulants, theophyllines, carbamazepine, and corticosteroids to name a few agents.

A 12-year-old patient with a complicated skin infection has been admitted to the pediatric unit. The physician has ordered Ertapenem (Invanz). What is the nursing priority? Transcribe the order to the medication administration record (MAR).

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Perform hand hygiene before preparing the medication.

Assess the patient’s renal and hepatic functions.

Question the order by calling the physician who prescribed it.

Ans:

141

Feedback: The nurse should call the physician and question the order Because this drug is not recommended for children younger than 18 years of age. Following clarification of the order, the drug would be transcribed and listed in the MAR. The nurse would then wash her hands before preparing the drug for administration. Assessment of renal and hepatic function is good practice before administering any medication but is not the nursing priority. 8.

A 22-year-old female is diagnosed with mycobacterial tuberculosis. The physician orders rifampin (Rifadin) 600 mg PO daily. What should the nurse question the patient about?

Her diet

Sun exposure

Type of exercise she does

Use of contact lenses

Ans:

D Feedback: Some antimycobacterial drugs can cause discoloration of body fluids. The orange tinged discoloration can cause permanent stain to contact lenses. The patient should avoid wearing them while on the antimycobacterial therapy. With antimycobacterial drugs there is not a concern is warranted about photosensitivity or exercise. However, due to the GI adverse effects, the nurse may want to discuss an appropriate diet if the patient experiences GI upset after beginning treatment.

The nurse is providing discharge teaching to a patient who is being sent home on oral tetracycline (Sumycin). What instructions should the nurse include?

Take the medication only once a day.

Check pulse rate and hold the drug if lower than 60 beats per minute (bpm).

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Take the drug on an empty stomach.

Take the medication with 2 ounces of water.

Ans:

142

Feedback: Tetracycline should be taken on an empty stomach 1 hour before or 2 hours after meals with a full 8 ounces of water to ensure full absorption. Tetracycline is usually taken at least once every 12 hours. Checking the pulse and holding the dose if below 60 bpm is an action specific to the use of cardiac glycosides. 10.

A 28-year-old patient has been prescribed penicillin for the first time. What nursing diagnosis would be most appropriate for this patient?

Acute pain related to gastrointestinal (GI) effects of the drug

Deficient knowledge regarding drug therapy

Imbalance nutrition: less than body requirements related to multiple GI effects of the drug

Constipation

Ans:

B Feedback: Because this is the first time the patient has taken penicillin, she is likely to have limited knowledge about the drug. She may not understand the importance of taking the medication as ordered to increase effectiveness of the drug or to report adverse effects. because the patient has not started the drug yet, there is no way to know what adverse effects, if any, she will experience. Only if she develops acute pain related to GI effects of the drug would this be appropriate. If GI symptoms develop it may lead to imbalanced nutrition, but that remains to be seen. No indication about constipation exists.

11.

The pharmacology instructor is discussing antimicrobials with the nursing class. What would the instructor tell the students about the mechanism of action of antimicrobials? (Select all that apply).

Preventing cell division

Causing cell death

Inhibiting cell wall synthesis

Causing leakage of cell wall allowing fluid to leak in

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Inhibiting synthesis of ribonucleic acid (RNA)

Ans:

A, B, C

143

Feedback: Sites of cellular action of carbapenems, ketolides, lincosamides, aztreonam, penicillins, sulfonamides, tetracyclines, and antimycobacterials. Carbapenems, ketolides, and lincosamides change protein function and prevent cell division or cause cell death. Aztreonam alters cell membranes to allow leakage of intracellular substances and causes cell death; it does not cause leakage of fluid into the cell. Penicillins prevent bacteria from building their cells during division. Sulfonamides inhibit folic acid synthesis for RNA and deoxyribonucleic acid production but does not inhibit RNA synthesis 12.

The nurse is preparing to contact the physician for an antibiotic order for the patient’s infection. What information will the nurse be prepared to provide for the physician to choose the proper antibiotic?

First day of infection symptoms

Culture and sensitivity test results

The patient’s intake and output for past 2 days

Results of complete blood count with differential

Ans:

B Feedback: Antibiotics are best selected based on culture results that identify the type of organism causing the infection and sensitivity testing that shows what antibiotics are most effective in eliminating the bacteria. First day of symptoms of infection is likely already known if culture and sensitivity testing has been performed. Although measurement of intake and output is one indicator of renal function, a bloodureanitrogen test and assessment of creatinine levels would be better ways of assessing renal function, which will be used to determine dose of medication but not for selection of the correct antibiotic. The white blood cell count and differential would indicate the possibility of an infection but are not needed in choosing the proper antibiotic.

13.

A nursing student asks the pharmacology instructor for ways to minimize the emergence of drugresistant microbial agents. What would be an appropriate response by the instructor? (Select all that apply.)

Avoid the use of broad-spectrum antibacterial drugs when treating trivial or viral infections.

Use narrow-spectrum agents if they are thought to be effective.

Do not use vancomycin unnecessarily.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Prescribe antibiotics when the patient believes they are warranted.

Start the antibiotics, do culture and sensitivity tests, and provide patient education.

Ans:

A, B, C

144

Feedback: To prevent or contain the growing threat of drug-resistant strains of bacteria, it is very important to use antibiotics cautiously, to complete the full course of an antibiotic prescription, and to avoid saving antibiotics for self-medication in the future. You would not give antibiotics every time the patient wants them, nor would you do a culture and sensitivity test after starting antibiotics. Therefore, Options D and E are incorrect. 14.

A student asks the pharmacology instructor if there is a way to increase the benefits and decrease the risks of antibiotic therapy. What would be an appropriate response by the instructor?

Taking drugs not prescribed for the particular illness tends to maximize risks and minimize benefits.

Never use antibiotics in combination with other prescriptions or in combination with other antibiotics.

Maximize antibiotic drug therapy by administering the full dose when the patient has a fever.

Use antibiotics cautiously and teach patients to complete the full course of an antibiotic prescription.

Ans:

D Feedback: To prevent or contain the growing threat of drug-resistant strains of bacteria, it is very important to use antibiotics cautiously, to complete the full course of an antibiotic prescription, and to avoid saving antibiotics for self-medication in the future. A patient and family teaching program should address these issues, as well as the proper dosing procedure for the drug (even if the patient feels better) and the importance of keeping a record of any reactions to antibiotics. Thus, taking drugs not prescribed for the particular illness tends to maximize risks and minimize benefits. Also, if the infection is viral, antibacterial drugs are ineffective and should not be used.

15.

What is the priority reason for the nurse to consider questioning an order for tetracycline in a child younger than 8 years of age?

Children younger than 8 years of age cannot take tetracyclines.

Weight-bearing joints have been impaired in young animals given the drugs.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Tetracyclines can damage developing teeth and bone in children younger than 8 years of age.

Liver and kidney function may be damaged when it is given to children under 8 years of age.

Ans:

145

Feedback: Use tetracyclines with caution in children younger than 8 years of age because they can potentially damage developing bones and teeth. Although the drug does not cause damage to liver and kidneys, it may be contraindicated in patients with hepatic or renal dysfunction because it is concentrated in the bile and excreted in the urine. Fluoroquinolones, not tetracyclines, are generally contraindicated for use in children (i.e., those younger than 18 years of age) because weight-bearing joints have been impaired in young animals given the drugs. Clindamycin (Dalacin C) warrants monitoring hepatic and renal function when it is given to neonates and infants. Trimethoprimsulfamethoxazole (Nu-Cotrimox) is used in children, although children younger than 2 months of age have not been evaluated. Children under 8 years of age can take tetracycline, but it should be used with caution. 16.

After administering an antibiotic, the nurse assesses the patient for what common, potentially serious, adverse effect?

Rash

Pain

Constipation

Hypopnea

Ans:

A Feedback: Examine skin for any rash or lesions, examine injection sites for abscess formation, and note respiratory statusincluding rate, depth, and adventitious sounds to provide a baseline for indications of an allergic or adverse response to the drug. Report nausea, vomiting, diarrhea, rash, recurrence of symptoms for which the antibiotic drug was prescribed, or signs of new infection (e.g., fever, cough, sore mouth, drainage). These problems may indicate adverse effects of the drug, lack of therapeutic response to the drug, or another infection. Pain, constipation, and hypopnea are not common adverse effects of antibiotic drugs.

17.

The nurse is caring for a 62-year-old patient who is receiving IV gentamicin (Garamycin). The patient complains of difficulty hearing. What should the nurse do?

Hold the dose and notify the physician immediately.

Administer the dose and speak in a louder voice when talking to the patient.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Administer the dose and report this information to the oncoming nurse.

Administer the dose and document the finding in the nurse’s notes.

Ans:

146

Feedback: Aminoglycosides are contraindicated in the following conditions: known allergy to any of the aminoglycosides; renal or hepatic disease that could be exacerbated by toxic aminoglycoside effects and that could interfere with drug metabolism and excretion, leading to higher toxicity; preexisting hearing loss, which could be intensified by toxic drug-related adverse effects on the auditory nerve. Ototoxicity should be reported and the drug should be stopped. You would not administer the dose and then call the physician, administer the dose and report information to oncoming nurse, or administer the dose and document the finding in the nurse’s notes because each additional dose administered could potentially worsen hearing loss. 18.

The nurse is providing patient teaching before discharging a patient home. The patient is taking ciprofloxacin (Cipro). What would the nurse teach this patient is the best way to prevent crystalluria caused by ciprofloxacin (Cipro)?

Eliminate red meat and seafood from the diet.

Encourage at least 2 liters of fluid per day.

Avoid caffeine and alcohol.

Spend time in the sun each day to optimize vitamin D levels.

Ans:

B Feedback: Provide the following patient teaching: Avoid driving or operating dangerous machinery because dizziness, lethargy, and ataxia may occur; try to drink a lot of fluids and maintain nutrition (very important), even though nausea, vomiting, and diarrhea may occur. There is no need to eliminate red meat, seafood, caffeine, or alcohol from the diet, although alcohol may increase the risk of GI irritation. Patients should be taught to avoid the sun due to possible photosensitivity.

19.

The nurse is caring for a child weighing 30 kg. The physician orders gentamicin (Garamycin) 100 mg tid for the patient. The recommended dosage range is 6 to 7.5 mg/kg/day. What action should the nurse take?

Administer the medication and assess hearing frequently.

Question the physician about the frequency of administration.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Question the physician about the dosage of the medication.

Administer the medication and assess renal function frequently.

Ans:

147

Feedback: The dosage is outside the recommended dosage range at 10 mg/kg/day so the nurse should question the dosage before administering the medication. It is appropriate to administer gentamicin tid to pediatric patients so there would be no need to question frequency of dosage. The drug should not be administered until the correct dosage is ordered so there is no need to assess hearing or renal function. 20.

The nurse is caring for a patient with a gram-positive infection. What antibiotic would be most effective in treating this infection?

Cefaclor (Ceclor)

Cefoxitin (generic)

Cefotaxime (Claforan)

Cefazolin (Zolicef)

Ans:

A Feedback: First-generation cephalosporins are largely effective against gram-positive bacteria and include cefadroxil (generic), cefazolin (Zolicef), and cephalexin (Keflex). Second-and third-generation cephalosporins are less effective against gram-positive bacteria. Cefoxitin (generic) is a secondgeneration cephalosporin and cefotaxime (Claforan) and cefazolin (Zolicef) are third-generation cephalosporins.

21.

What severe reaction would the nurse assess for if it were necessary to administer trimethoprim/sulfamethoxazole (TMP/SMX) to an older adult?

Diarrhea

Bone marrow depression

Vomiting

Decreased gastrointestinal (GI) motility

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Ans:

148

B Feedback: TMP/SMX is associated with an increased risk of severe adverse effects in patients with reduced liver and kidney function. Because kidney function is known to decline as a natural part of aging, older adults would be at more increased risk of severe reactions and would require more careful monitoring. Severe skin reactions and bone marrow depression are the most frequently reported severe reactions. Diarrhea and vomiting are possible adverse effects of most medications but are not examples of severe reactions, although they would require proper intervention to prevent dehydration. GI motility is more likely to increase than to decrease.

22.

What medication would the nurse question if ordered for a pediatric patient?

Amikacin

Cefazolin

Streptomycin

Levofloxacin

Ans:

D Feedback: Fluoroquinolones are contraindicated in patients who are younger than 18 years of age. Levofloxacin is the only fluoroquinolone among the answer options and is contraindicated for pediatric patients under age 18.

23.

The nurse is caring for a patient who is receiving an aminoglycoside. What would be a priority assessment on this patient?

Respiratory function

Vision

Cardiac function

Liver function

Ans:

A Feedback:

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149

Aminoglycosides come with a black box warning alerting health care professionals to the serious risk of ototoxicity and nephrotoxicity. Central nervous system effects include ototoxicity, possibly leading to irreversible deafness; vestibular paralysis resulting from drug effects on the auditory nerve; confusion; depression; disorientation; and numbness, tingling, and weakness related to drug-related adverse effects on other nerves. Visual alterations are not usually reported in relation to this drug. Respiratory function and liver function are not usually impacted by this drug. 24.

The nurse provides discharge teaching for a patient who will receive a prescription for cefaclor (Ceclor). What important information will the nurse provide this patient?

Avoid alcohol until 72 hours after stopping this medication.

Genital itching will go away after the drug is discontinued.

Monitor for yellowing of the skin or eyes and call the doctor if it occurs.

Avoid grapefruit juice when taking this medication to prevent adverse effects.

Ans:

A Feedback: Patients should be taught to avoid alcohol for up to 72 hours after discontinuing cefaclor (Ceclor) to prevent a disulfiram-like reaction that results in unpleasant symptoms such as flushing, throbbing headache, nausea and vomiting, chest pain, palpitations, dyspnea, syncope, vertigo, blurred vision, and in extreme reactions, cardiovascular collapse, convulsions, or even death. Genital itching in women indicates the possibility of a superinfection and the patient should see her health care provider. Liver damage, indicated by jaundice, is not a likely adverse effect with this drug. There is no need to avoid grapefruit juice.

25.

The nurse is teaching the patient about amoxicillin prior to discharge and includes what important teaching point?

Blackening of the tongue may occur but will subside when the drug is discontinued.

Even if it seems like the infection is not improving, the drug is still working.

Yeast infections are unlikely to occur with this medication because it is narrow spectrum.

Appearance of a rash is common and does not indicate an allergic reaction.

Ans:

A Feedback: One of the adverse effects of ampicillin is blackening of the tongue but the discoloration goes away after stopping the drug. If it is accompanied by swelling, the patient should be instructed to call the

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150

prescribing health care provider immediately. Many penicillin-resistant pathogens exist, so if the infection does not seem to be responding to the drug, the patient should notify the health care provider because a different antibiotic may be required. Yeast infections are very likely after taking ampicillin because it is a broad-spectrum antibiotic. Appearance of a rash should be evaluated by a health care professional because allergic reactions to this class of antibiotic are very common. 26.

What drug administered by the nurse belongs to the group of Carbapenems?

Primaxin

Gemifloxacin

Demeclocycline

Cefuroxime

Ans:

A Feedback: The group consists of three drugs: imipenem-cilastatin (Primaxin), meropenem (Merrem), and ertapenem (Invanz). Gemifloxacin is a Fluoroquinolones, Cefuroxime is a second-generation cephalosporin, and demeclocycline is a tetracycline.

27.

An intensive care unit nurse is caring for a patient taking kanamycin. What is the nurse’s priority action?

Giving the drug for no longer than 7 days

Assessing liver function daily

Contacting the ordering physician

Monitoring renal function daily

Ans:

D Feedback: The potential for nephrotoxicity and ototoxicity with amikacin is very high, so the drug is used only as long as absolutely necessary and should not be administered for longer than 7 to 10 days because of its potentially toxic adverse effects, which include renal damage, bone marrow depression, and gastrointestinal (GI) complications. The nurse cannot stop administering the drug after 7 days if the doctor orders it to be given longer but the nurse could question the order and promote change to another antibiotic if necessary. Monitoring renal function is the priority action when this drug is administered and the provider should be notified if signs of renal failure occur. Liver function is not usually impacted by this drug, although a patient with preexisting liver alterations may require a change in dosage to

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151

prevent toxicity. There is no indication of a need to contact the health care provider. 28.

The clinic nurse is providing health teaching to a patient who has been prescribed doxycycline (Doxycin). What is a priority teaching point for this patient?

Stay out of the sun.

Avoid sexual activity.

Take an antacid with the drug if nausea occurs.

Chew the tablets completely before swallowing.

Ans:

A Feedback: Encourage the patient to apply sunscreen and wear protective clothing if sun exposure cannot be avoided to protect exposed skin from rashes and sunburn associated with photosensitivity reactions. If the patient is a woman the nurse may advise the patient to use barrier methods of contraceptives (if she is taking oral contraceptives) due to the drugdrug interaction but the patient would not be told to avoid sexual activity. Antacid therapy and chewing the tablets would be inaccurate information.

29.

The mother of a 5-year-old asks the nurse why it seems amoxicillin is always prescribed when her child needs an antibiotic. What is the priority rationale the nurse should give the mother?

It is better absorbed.

It is less costly.

It has a less frequent dosing schedule.

It tastes better in oral form.

Ans:

A Feedback: Most penicillins are rapidly absorbed from the GI tract, reaching peak levels in 1 hour. Although amoxicillin is less expensive, that fact has far less impact on choosing the proper antibiotic than the effectiveness of the drug. Most oral antibiotics for children are available in pleasant tasting syrups so taste would not be a factor. Ampicillin is often given up to 4 times a day so it actually has a frequent dosing schedule.

30.

When discussing cephalosporins with the nursing class, the pharmacology instructor explains that this classification of drug is primarily excreted through which organ?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Lung

Liver

Kidney

Skin

Ans:

152

Feedback: The cephalosporins are primarily metabolized in the liver and excreted in urine. These drugs cross the placenta and enter breast milk. They are not excreted through the lungs, liver, or skin. 31.

The nurse is caring for a patient receiving an antimycobacterial who reports dizziness, headache, and drowsiness. What is the priority nursing diagnosis?

Imbalanced nutrition: less than body requirements

Disturbed sensory perception (kinesthetic) related to central nervous system (CNS) effects of the drug

Acute pain related to gastrointestinal (GI) effects of the drug

Deficient knowledge regarding drug therapy

Ans:

B Feedback: The priority concern for this patient right now is the disturbed sensory perception related to the CNS effects of the drug. Acute Pain could also be used but it would be related to CNS effects, not GI effects. There is no indication of imbalanced nutrition or deficient knowledge in the question.

32.

The patient is admitted to the acute care facility with acute septicemia and has orders to receive gentamicin and ampicillin IV. The nurse is performing an admission assessment that includes a complete nursing history. What information provided by the patient would indicate the need to consult the health care provider before administering the ordered medication?

Takes furosemide (Lasix), a potent diuretic, daily

Had prostate surgery 3 months ago

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

History of hypothyroidism

Allergic to peanuts and peanut products

Ans:

153

Feedback: Aminoglycosides should be avoided if the patient takes a potent diuretic because of the increased risk of ototoxicity, nephrotoxicity, and neurotoxicity. Learning the patient takes a potent diuretic would indicate the need to consult with the health care provider before administering gentamicin. Prostate surgery, hypothyroidism, and an allergy to peanuts would not preclude administration of these medications and would not indicate a need to consult with the provider. 33.

When the nurse cares for a patient receiving an antibiotic, what instructions will the nurse provide no matter what medication is prescribed? (Select all that apply.)

Drink plenty of fluids to avoid kidney damage.

Take all medications as prescribed until all of the medication is gone.

Report difficulty breathing, severe headache, or changes in urine output.

Take antibiotic with food to avoid gastrointestinal (GI) upset.

Take safety precautions such as changing position slowly.

Ans:

A, B, C Feedback: The patient taking any antibiotic needs to drink plenty of fluids to avoid kidney damage and improve excretion of the metabolized drug; take all medications as prescribed until all of the medication is gone to avoid developing a resistant strain of bacteria; and report any difficulty breathing, severe headache, or changes in urine output because these are primary manifestations of serious adverse effects. Although some antibiotics need to be taken with food, others may be best taken on an empty stomach so this does not apply to all antibiotics. Not all antibiotics are associated with central nervous system (CNS) toxicity so taking safety precautions need only be included in patient teaching if they are taking a drug associated with CNS adverse effects.

34.

The nurse is admitting a 12-year-old girl to the acute care facility and notices discolored secondary teeth. The mother says she doesn’t know why the teeth are discolored because the child is very good about brushing and flossing and sees the dentist regularly. What question would the nurse ask?

Has she ever received tetracycline?

Has she ever received gentamicin?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Has she ever received ampicillin?

Has she ever received cephalexin?

Ans:

154

Feedback: The nurse would question whether the child was ever given tetracycline because this drug is commonly associated with discoloration of secondary teeth when it is administered to children who still have their primary teeth. Gentamicin, ampicillin, and cephalexin are not associated with discoloration of the teeth. 35.

The nurse is caring for a female patient whose tests confirm she is 10 weeks pregnant and has contracted tuberculosis. The health care provider orders a combination of antimycobacterials. What combination of drugs would the nurse identify as safest for this pregnant patient?

Isoniazid, ethambutol, and rifampin

Rifabutin, streptomycin, and rifampin

Capreomycin, cycloserine, and ethionamide

Dapsone, ethambutol, and cycloserine

Ans:

A Feedback: The antituberculosis drugs are always used in combination to affect the bacteria at various cellular stages and first-line drugs are always the first choice, using second-line drugs only when the patient is unable to take the first-line medications. Because this patient is pregnant, the safest choices would be isoniazid, ethambutol, and rifampin but no drug is administered during pregnancy unless the benefit outweighs the risk. The other drug choices would be less safe and would not be used unless the safer drugs were contraindicated.

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Chapter 10 - Antiviral Agents

The nurse explains why viruses are so difficult to treat when making what statement?

Viruses are contained inside the human cell and cannot be destroyed without destroying the cell.

Release of interferons by the host cell makes the virus replicate more quickly allowing the virus to spread.

Drugs exist to treat all viral infections but they carry serious adverse effects and the benefit often does not outweigh the risk.

Individual antiviral drugs are often effective in treating many different viruses because one virus in a category behaves like others in the same category.

Ans:

A Feedback: Because viruses are contained inside human cells while they are in the body, researchers have difficulty developing effective drugs that destroy a virus without harming the human host. Interferons are released by the host in response to viral invasion of a cell and act to prevent the replication of that particular virus. Some interferons that affect particular viruses can now be genetically engineered to treat particular viral infections. Other drugs that are used in treating viral infections are not natural substances and have been effective against only a limited number of viruses. Very few viruses are treatable with medications; a few more can be prevented through immunization but most have no known treatment. Each antiviral is generally only suited to treat the single virus it was developed for and will not be effective against other viruses.

While calculating the drug dose of antiviral medications for children who have AIDS a pediatric nurse uses what?

The viral complications

The child’s age

The severity of the virus

The child’s weight

Ans:

D Feedback:

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156

Antiviral medication dosages for children are calculated according to weight. There is no scientific data available concerning dosages based on complications or severity of illness. The ethical dilemma using children in drug studies is always a concern. Children must be monitored very carefully for adverse effects on kidneys, bone marrow, and the liver. The complications and severity of the disease may determine which drug is prescribed. 3.

A patient taking nevirapine (Viramune) as part of combination therapy for treatment of HIV took 200 mg/daily PO for 14 days. The patient is now taking 200 mg PO bid. How many mg of the medication is the patient taking daily?

100 mg

200 mg

300 mg

400 mg

Ans:

D Feedback: The patient is to take 200 mg bid, which means twice a day. (200 times 2 equals 400 mg daily.)

What medication is only administered intravenously and is used to treat cytomegalovirus (CMV)?

Cidofovir (Vistide)

Foscarnet (Foscavir)

Valacyclovir (Valtrex)

Valganciclovir (Valcyte)

Ans:

B Feedback: Foscarnet (Foscavir) is administered IV only. Ganciclovir and (Cytovene) can be administered by IV and orally. Valganciclovir (Valcyte) and Valacyclovir (Valtrex) are administered only by the oral route.

A hospitalized patient is receiving an antiviral drug to treat cytomegalovirus. What is the nurse’s priority action after administering the antiviral drug? Monitor vital signs every hour.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Decrease fluid intake.

Keep side rails up.

Encourage the patient to ambulate 10 minutes after each dose.

Ans:

157

Feedback: Antiviral drugs for herpes and cytomegalovirus can cause confusion, dizziness, and other central nervous system (CNS) effects. Side rails should be up after administration to protect the patient from injury until risk for these adverse effects is lowered because not every patient will experience these effects. The patient should not be encouraged to walk after each dose because of the risk of falls if adverse effects occur. Fluid intake should be slightly increased to help decrease risk of nephrotoxicity. Vital signs should be monitored, but it would not be necessary to take them every hour unless serious adverse effects occur. 6.

A nurse is caring for a patient with HIV. What lab tests would the nurse monitor when a protease inhibitor has been ordered for this patient?

A fasting blood sugar and 2-hour postprandial blood sugar

Urine specific gravity and urine pH

Serum alanine aminotransferase and bilirubin

Arterial blood gases and O2 saturation

Ans:

C Feedback: Serum alanine aminotransferase and bilirubin are monitored when a protease inhibitor is used due to the risk of liver damage and the need to monitor liver function. Cholesterol and triglycerides may also be elevated by the drug and should be monitored. Protease inhibitors are metabolized in the liver and partially by the cytochrome P450 oxidase system. Although some cases of kidney stones have been related to protease inhibitors use, the greatest risk is to the liver and therefore urine specific gravity and urine pH, which indicate renal function, would be less critical to assess. Lab tests for blood sugar and arterial blood gases would not be directly affected by hepatic function.

A patient with renal impairment and HIV has had a medication change. What drug would be considered the drug of choice for this patient? Atazanivir (Reyataz)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Lopinavir (Kaletra)

Nelfinavir (Viracept)

Ritonavir (Norvir)

Ans:

158

Feedback: Nelfinavir is the best choice for a patient with renal impairment because very little of the drug is excreted through the kidney, with most being excreted in feces. The other drugs are all excreted through both the urine and feces, so patients with renal impairment might need dosage adjustments to avoid toxicity. 8.

The nurse is caring for a patient with hepatitis B. The patient is taking adefovir (Hepsera). Which medication would the nurse question if it were ordered?

Cimetidine (Tagament)

Diltiazem (Cardizem)

Diphenhydramine (Benadryl)

Telbivudine (Tyzeka)

Ans:

D Feedback: Telbivudine is an antihepatitis B agent, and when given with adefovir (Hepsera) can result in severe hepatomegaly with steatosis, sometimes fatal. Cimetidine is a histamine-2 antagonist, diltiazem is a calcium channel blocker, and diphenhydramine is a first-generation antihistamine. These drugs are normally not considered nephrotoxic and could be used with adefovir.

A nurse is caring for a stroke victim in the intensive care unit. The nurse notices a cold sore and requests medication. Docosanol (Abreva) is ordered. Before applying the medication, the nurse would first?

Clean the area to be treated and then pat it dry.

Assess the area for open lesions or abrasions.

Put gloves on to protect herself.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Prepare applicator for drug administration.

Ans:

159

Feedback: The nurse would assess the area first to make sure no open lesions or abrasions could allow for systemic absorption of the drug. Then the nurse would clean the area and pat it dry. The nurse may apply the medication using gloves or an applicator. 10.

A patient with AIDS is taking an antiviral agent. What comment by the patient would indicate that the teaching plan was effective?

I feel like I do when I have the flu.

I will continue to take the over-the-counter medication for my allergies.

Excessive fatigue and a severe headache are common adverse effects of my medication.

This drug will cure AIDS.

Ans:

A Feedback: Common adverse effects of antiviral agents are flu-like symptoms, which may be related to the underlying disease. Excessive fatigue and a severe headache can indicate a serious complication and should be reported immediately. Antiviral agents do not cure the disease. HIV causes loss of helper Tcell function. This causes the immune system to be depressed and allows opportunistic infections to occur. Antiviral agents reduce the number of mutant viruses that are formed and spread to noninfected cells.

11.

The school nurse is preparing a lecture on hepatitis B for a health class in high school. What is an important teaching point for the nurse to include about the transmission of hepatitis B? (Select all that apply.)

Hepatitis B is transmitted through the bite of an insect.

Hepatitis B is transmitted through sexual contact.

Hepatitis B is transmitted through blood-to-blood contact.

Hepatitis B is transmitted from the mother to her unborn baby.

Hepatitis B is transmitted through nonsexual household contact.

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Ans:

160

B, C, D Feedback: Hepatitis B is transmitted from one person to another through sexual contact, blood-to-blood contact, or perinatally. It is not transmitted through casual contact. Several studies involving more than 1,000 uninfected, nonsexual household contacts with persons with hepatitis B infection (including siblings, parents, and children) have shown no evidence of casual transmission. Hepatitis B is not spread by mosquitoes or other insect vectors.

12.

A 21-year-old woman presents with cytomegalovirus (CMV). The LPN says, I’ve never heard of CMV before. The nurse explains to the LPN that this infection is most often seen with patients diagnosed with what?

HIV

Influenza

Autoimmune disorder

Hepatitis B

Ans:

A Feedback: CMV is an opportunistic infection that is most often diagnosed in patients with HIV or who are immunocompromised because those with a healthy immune system can fight off CMV. CMV would not be diagnosed in patients with influenza, an autoimmune disorder, or hepatitis B because the immune system would be strong enough to destroy the CMV pathogen.

13.

The nurse is assessing a patient admitted with AIDS who is taking a nonnucleoside reverse transcriptase inhibitor. What nursing diagnosis is most likely to be appropriate for this patient?

Risk for injury related to central nervous system (CNS) effects of the drug

Excess fluid volume related to renal failure

Imbalanced nutrition: Less than body requirements, related to gastrointestinal (GI) effects of the drugs

Ineffective health maintenance related to spiritual distress

Ans:

C Feedback:

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The adverse effects most commonly experienced with these drugs are GI relateddry mouth, constipation or diarrhea, nausea, abdominal pain, and dyspepsia. As a result, this patient is most at risk for imbalanced nutrition; less than body requirements. CNS effects are not common with this classification of drug. Renal failure is not a common adverse effect. Nothing indicates the possibility of spiritual distress in this situation. 14.

A patient has just been diagnosed with HIV. When developing the teaching plan, what information would the nurse share with this patient related to use of alternative or complementary therapies?

Complementary therapies such as acupuncture or herbal therapy are dangerous to patients with HIV and you are discouraged from exploring these types of therapy.

Researchers have not looked at the benefits of alternative therapy for patients with HIV, so it is suggested you avoid these therapies until research data are available.

Alternative therapies have benefits and risks. Are there any types of alternative or complementary therapies that you follow or are there any herbs or supplements that you take?

You do not take herbs or practice some type of alternative medicine such as acupuncture, massage therapy, hypnosis, or diet therapy, do you?

Ans:

C Feedback: With a new diagnosis of HIV, it is important for the nurse to assess the patient for use of alternative therapies because some alternative therapies are contraindicated while on antiviral medication. Options A and D are negative statements that discourage the patient from sharing information with the nurse. Option B gives the patient information, but does not elicit information in return and is therefore inappropriate for the nurse to use.

15.

The nurse is caring for a patient hospitalized with hepatitis B. The family comes to visit and a family member asks the nurse if it is safe to visit. What is the nurse’s best response?

You seem fearful. Why do you think you are at risk?

Don’t worry, you will not contract the disease from the patient.

There is no risk unless you come in contact with blood and body fluids.

The patient should be isolated and have limited visitation.

Ans:

C Feedback:

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162

Visitors should be reassured that they are not at risk of contracting the virus unless they come in contact with blood or body fluids. It is never appropriate to tell someone not to worry because it is neither effective nor appropriate. The reason the family member is fearful is obvious, so these questions are demeaning. Visitation does not need to be limited. 16.

A patient newly diagnosed with HIV is receiving patient teaching from the clinic nurse about antiviral medications. What would the nurse tell the patient needs to be reported to a health care provider?

Dizziness

Constipation

Vomiting

Rash

Ans:

D Feedback: All options provided have the potential to be an adverse effect of antiviral medications prescribed to treat HIV. Most can be managed through diet or over-the-counter medications but a rash needs to be reported immediately because it could indicate a potentially serious reaction and requires immediate intervention.

17.

The nurse is planning care for an AIDS patient admitted with chronic severe diarrhea secondary to adverse effects of the antiviral drugs prescribed. What would be the most appropriate goal for this patient?

Patient will show improved nutritional status evidenced by weight gain.

Alleviation or reduction of signs and symptoms of AIDS.

Patient will be able to demonstrate the effectiveness of the teaching plan.

Patient will state that comfort and safety measures are effective and show compliance with the regimen.

Ans:

A Feedback: Severe chronic diarrhea is likely to result in malnutrition and weight loss along with potential alterations in fluid and electrolyte balance. The best indicator of improvement would be an improvement in nutritional status as indicated by weight gain. Although the other outcomes might be applicable to a patient with AIDS, weight gain is the priority concern for a patient with severe chronic diarrhea.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

18.

163

A nurse practitioner is teaching a health class in the local high school. The NP informs the class about hepatitis B. What occupation does the NP inform the class is at the greatest risk for contracting hepatitis B?

Policemen

Health care workers

Educators

Fire fighters

Ans:

B Feedback: Health care workers are at especially high risk for contracting hepatitis B due to needle sticks and contact with the blood of infected patients. Policemen, educators, and fire fighters are not considered at high risk for contracting hepatitis B although they do face some risk because of contact with blood and body fluids.

19.

What liver function test is a sensitive indicator of injury to liver cells and useful in detecting acute liver disease such as hepatitis?

Clotting factors

SGGT

Serum aminotransferases

Alkaline phosphatase

Ans:

C Feedback: Antiviral drugs are indicated for the treatment of adults with chronic hepatitis B who have evidence of active viral replication and evidence of either persistent elevations in serum aminotransferases or histologically active disease. The drugs inhibit reverse transcriptase in the hepatitis B virus and cause DNA chain termination, leading to blocked viral replication and decreased viral load. Clotting factor alterations will be seen only in cases of severe liver damage. Serum gamma-glutamyl transferase and alkaline phosphatase may elevate with liver damage, but serum aminotransferases are the best indicator of hepatitis B

20.

What drug would the nurse administer to treat chronic hepatitis C in children and adults who relapse

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164

after interferon-alfa therapy? A)

Zanamivir (Relenza)

Acyclovir (Zovirax)

Cidofovir (Vistide)

Ribavirin (Virazole)

Ans:

D Feedback: Ribavirin is used in combination with interferon alfa-2b as an oral drug for the treatment of chronic hepatitis C in children and adults who relapse after inferferon alfa therapy. Cidofovir is used to treat cytomegalovirus (CMV) in AIDS patients. Virazole is used to treat uncomplicated infuenza infections. Acyclovir is used for herpes infections.

21.

Some antiviral agents are given locally to treat local viral infections. How do these medications work? (Select all that apply.)

Interfere with viral metabolic processes

Interfere with viral cellular replication

Interfere with host metabolic processes

Interfere with viral transcription

Increase antibody production

Ans:

A, B Feedback: These antiviral agents act on viruses by interfering with normal viral replication and metabolic processes. They are indicated for specific local viral infections. The medications do not interfere with the invaded cell or with viral transcription and they do not increase antibody production.

22. A)

What drug used to treat influenza A should not be used by nursing mothers? Ribavirin (Rebetron)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Rimantadine (Flumadine)

Valganciclovir (Valcyte)

Acyclovir (Zovirax)

Ans:

165

Feedback: Rimantadine is embryotoxic in animals and should be used during pregnancy only if the benefits clearly outweigh the risks. The drug should not be used by nursing mothers because it crosses into breast milk and can cause toxic reactions in the neonate. Valganciclovir is used to treat cytomegalovirus-related retinitis in AIDS patients. Acyclovir is used to treat herpes simplex outbreaks. Ribavirin is used as a treatment of influenza A, respiratory syncytial virus (RSV), and herpes virus infections; treatment of children with RSV; has undergone testing for use in several other viral conditions. It is teratogenic and is rated pregnancy category X, but no warnings are related to breastfeeding mothers. 23.

A 25-year-old female patient presents at the clinic with fever, chills, and achy joints. The patient is diagnosed with influenza A, and ribavirin is prescribed. What should the nurse include in patient teaching about this medication?

Advise women of childbearing age to remain on oral contraceptives for at least 1 month after finishing this medication.

Advise women of childbearing age that this drug is also an abortifacient.

Advise women of childbearing age to use barrier contraceptives.

Advise women of childbearing age that this drug is safe for the fetus.

Ans:

C Feedback: For ribavirin, advise women of childbearing age to use barrier contraceptives if they are taking this drug. The drug has been associated with serious fetal effects, but it has not been associated with spontaneous abortions. Oral contraceptives should not be stopped and barrier contraceptives should be used in addition.

24.

A patient has been prescribed ribavirin for influenza A. The patient is experiencing nausea, vomiting, and diarrhea. What would the nurse be sure to include in the patient teaching about this medication?

Do not take with anticholinergic medications.

Do not take with acetaminophen or aspirin.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Do not take with antiarrhythmics.

Do not take with antacids.

Ans:

166

Feedback: Ribavirin levels may be reduced if given with antacids. Patients who receive amantadine or rimantadine may experience increased atropine-like effects if either of these drugs is given with an anticholinergic drug. Patients taking rimantadine may also experience a loss of effectiveness of aspirin and acetaminophen if these are also being used. Rifampin is known to decrease the effectiveness of many drugs, including antiarrhythmics. 25.

The nurse is caring for a patient who is prescribed cidofovir, IV. What other medication will the nurse administer with cidofovir?

Probenecid

Paroxetine hydrochloride

Penciclovir

Prostigmin

Ans:

A Feedback: Cidofovir, which is given by IV infusion, reaches peak levels at the end of the infusion; in studies, it was cleared from the system within 15 minutes after the infusion was completed. It is excreted unchanged in the urine and must be given with probenecid to increase renal clearance of the drug. Paroxetine hydrochloride is Paxil, an antidepressant; Penciclovir is an antiviral cream; Prostigmin is an anticholinesterase agent used in myasthenia gravis. None of these drugs are used with cidofovir except for probenecid.

26.

The nurse admits a patient for treatment of cytomegalovirus (CMV). The patient has been ordered foscarnet (Foscavir), 40 mg/kg q812h given over 2 hours. By what route would the nurse administer this drug?

Sub q

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

167

Feedback: Foscarnet is available in intravenous (IV) form only. It reaches peak levels at the end of the infusion and has a half-life of 4 hours. About 90% of foscarnet is excreted unchanged in the urine making it highly toxic to the kidneys. Use caution and at reduced dosage in patients with renal impairment. Options A, C, and D are incorrect. 27.

A patient comes to the clinic with a herpes outbreak. The nurse notes from the patient’s chart that the patient is just beginning a course of antibiotics prescribed by another physician in the clinic. What classification of antibiotic should not be taken with an antiviral medication used to treat herpes?

Penicillin

Beta-Lactam

Aminoglycoside

Macrolide

Ans:

C Feedback: The risk of nephrotoxicity increases when agents indicated for the treatment of herpes and cytomegalovirus are used in combination with other nephrotoxic drugs, such as the aminoglycoside antibiotics. No contraindication exists for penicillins, beta-lactams, or macrolide antibiotics.

28.

A nonnucleoside reverse transcriptase inhibitor has direct effects on the HIV virus activities within the cell. What drug is a nonnucleoside reverse transcriptase inhibitor?

Econazole nitrate (Spectazole)

Oxaliplatin (Eloxatin)

Olanzapine (Zyprexa)

Efavirenz (Sustiva)

Ans:

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168

Feedback: The nonnucleoside reverse transcriptase inhibitors now available include: delavirdine (Rescriptor), efavirenz (Sustiva), and nevirapine (Viramune). Econazole nitrate is an antifungal cream, olanzapine is an atypical antipsychotic, and oxaliplatin is an antineoplastic agent. 29.

An immunocompromised 3-year-old has been exposed to avian flu. The patient is brought to the clinic and the mother reports that the patient has had flu-like symptoms for the past 12 hours. What medication would you expect the physician to order for this patient?

Oseltamivir (Tamiflu)

Amantadine (Symmetrel)

Ribavirin (Rebetron)

Zanamivir (Relenza)

Ans:

A Feedback: Oseltamivir is the only antiviral agent that has been shown to be effective in treating avian flu. Therefore Options B, C, and D are incorrect.

30.

The nurse is providing discharge teaching for a patient going home on the medication entecavir (Baraclude). What is the priority teaching point for this patient?

Take the whole course of the medication as prescribed.

Take this medication with grapefruit juice.

Do not stop taking this medication or allow the prescription to run out.

The patient will take this medication for the rest of his life.

Ans:

C Feedback: A potential risk for hepatitis B exacerbation could occur when the drugs are stopped. Therefore, teach patient the importance of not running out of the drugs and using extreme caution when discontinuing these drugs. Options A, B, and D are incorrect responses.

31.

The nurse is caring for a patient who is taking adefovir to treat hepatitis B. The nurse would hold the

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169

medication and notify the health care provider if assessing the signs and symptoms of what? (Select all that apply.) A)

Lactic acidosis

Hepatotoxicity

Headache

Nausea

Asthenia

Ans:

A, B Feedback: Withdraw the drug and monitor the patient if he or she develops signs of lactic acidosis or hepatotoxicity because these adverse effects can be life threatening. Headache, nausea, and asthenia are potential adverse effects but are not life threatening and would not require withdrawal of the drug.

32.

The nurse is caring for an asymptomatic preschool-aged child who has cystic fibrosis and has been exposed to influenza A before receiving the appropriate immunization. What antiviral medication might the nurse administer to this child?

Rimantadine (Flumadine)

Zanamivir (Relenza)

Oseltamivir (Tamiflu)

Amantadine (Symmetrel)

Ans:

C Feedback: Amantadine is indicated for the prevention of respiratory virus infections and can be given to children older than 1 year of age. This would be appropriate in a child with a chronic respiratory illness who could die as the result of developing a respiratory virus. Zanamivir is not indicated for children younger than 7 years of age. Rimantadine is administered as prophylaxis against influenza A virus in children older than 10 years of age. Oseltamivir is indicated for patients who are symptomatic for less than 2 days, but this child is asymptomatic.

33.

For what viruses might the nurse administer acyclovir (Zovirax)? (Select all that apply.)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Herpes simplex virus

Shingles

Chickenpox

HIV

Cytomegalovirus (CMV)

Ans:

A, B, C

170

Feedback: Acyclovir is indicated for the treatment of herpes simplex virus, shingles, and chickenpox as well as topically for treating herpes labialis. Acyclovir is not effective against HIV or CMV. 34.

The nurse is caring for a patient whose condition has continued to decline on other antiviral medications and is now prescribed nevirapine (Viramune). What other medications will the nurse assess for to avoid a drugdrug interaction with this new prescription? (Select all that apply.)

Oral contraceptives

Protease inhibitors

St. John’s wort

Ergot derivatives

Antiarrhythmics

Ans:

A, B, C Feedback: Effectiveness may be lessened if nevirapine is combined with hormonal contraceptives or protease inhibitors. St. John’s wort should not be used with this drug or any nonnucleoside reverse transcriptase inhibitors because a decrease in antiviral effects can occur. Antiarrhythmics are contraindicated when taking delavirdine, not nevirapine. Ergot derivatives are contraindicated with efavirenz, not nevirapine.

35.

The nurse is caring for a pregnant woman diagnosed with HIV on prenatal drug screening. What medication would the nurse expect to administer to reduce the risk of maternal to fetal transmission of the virus? Lamivudine (Epivir)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Zidovudine (Retrovir)

Stavudine (Zerit XR)

Tenofovir (Viread)

Ans:

171

Feedback: AZT, or zidovudine is administered to prevent the transmission of HIV from mother to child and can be administered to both after birth to treat symptomatic HIV. The other medications (options A, C, and D) are not used for this purpose.

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Chapter 11 - Antifungal Agents

A 17-year-old male patient with athlete’s foot is extremely upset that he cannot get rid of it. He calls the clinic and asks the nurse whether the doctor can give him an antibiotic to cure the infection. What should the nurse include in the explanation of treatment for fungal infections?

Fungi differ from bacteria in that the fungus has flexible cell walls that allow for free transfer into and out of the cell.

Protective layers contain sterols, which change the membrane permeability.

The composition of the protective layers of the fungal cell makes the organism resistant to antibiotics.

Fungi cell walls contain Candida, which makes the cells rigid.

Ans:

C Feedback: The nurse should tell the patient that the composition of the protective layers of the fungal cell makes the organism resistant to antibiotics so that antibiotics would not have any positive effect. Fungi do differ from bacteria, but the fungus has rigid cell walls that allow for free transfer in and out of the cell. The protective layers contain ergosterol, not Candida, that helps keep the cell wall rigid, not permeable.

The nurse admits a 1-year-old child to the pediatric intensive care unit (ICU) with cryptococcal meningitis. What drug will the nurse anticipate receiving an order for to treat this child?

Amphotericin B (Fungizone)

Fluconazole (Diflucan)

Griseofulvin (Fulvicin)

Ketoconazole (Nizoral)

Ans:

B Feedback: Fluconazole is used in the treatment of cryptococcal meningitis and is safe to use in a 1-year-old child. Amphotericin B has many unpleasant adverse effects and is very potent, so it would not be the first or best medication to administer initially but would be reserved for use if fluconazole was not effective. Griseofulvin is given to treat tinea pedis and tinea unguium in children. Ketoconazole is not given to

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173

children younger than 2 years because safety has not been established. 3.

The nurse is teaching the patient about a newly prescribed systemic antifungal drug. What sign or symptom will the nurse instruct the patient to report to the provider immediately?

Unusual bruising and bleeding

Constipation or diarrhea

Red and dry eyes

Increased appetite with weight gain

Ans:

A Feedback: Unusual bruising and bleeding can be an indication of hepatic toxicity, which should be reported immediately. Yellowing of the eyes, not redness, and tearing are also indicative of hepatic toxicity. Usually GI symptoms include nausea and vomiting with antiviral drugs, which could cause decreased appetite and weight loss. These symptoms should be reported if they persist but are not emergency symptoms to report immediately.

A patient who has a tinea infection calls the clinic and complains of intense local burning and irritation with use of a topical antifungal drug. Even before asking the patient, the nurse suspects he or she is applying what medication?

Butoconazole (Gynazole I)

Ciclopirox (Loprox)

Econazole (Spectazole)

Haloprogin (Halotex)

Ans:

C Feedback: Econazole can cause intense local burning and irritation in treatment of tinea infections. Butoconazole is used to treat vaginal Candida infections. Ciclopirox is used to treat toenail and fingernail tinea infections and does not produce intense burning and irritation. Haloprogin is used to treat athlete’s foot, jock itch, and ringworm infections and is not associated with burning or irritation.

A patient asks the nurse if he or she should use a topical antifungal. The nurse is aware that the most important contraindication to topical antifungals is what?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Hepatic impairment

Renal impairment

Congestive heart failure

Known allergy to any of the antifungal drugs

Ans:

174

Feedback: Topical antifungals are not absorbed systemically so they are not metabolized and excreted. As a result, the only contraindication would be an allergy to the drug. Hepatic and renal impairment and congestive heart failure would not be a contraindication because these drugs do not enter the bloodstream and impact these organ systems. 6.

A patient with high cholesterol is taking lovastatin (Mevacor). What drug would the nurse question if it was ordered for this patient?

Nifedipine (Procardia)

Ciprofloxacin (Cipro)

Itraconazole (Sporanox)

Oxazepam (Serax)

Ans:

C Feedback: Itraconazole is an azole antifungal drug that has been associated with severe cardiovascular events when taken with lovastatin. Nifedipine, ciprofloxacin, and oxazepam have no drug interactions with lovastatin. Nifedipine is an antihypertensive drug whose effects can be increased when taken with cimetidine. The effects of ciprofloxacin are altered when taken with antacids and theophyllines. Oxazepam is an antianxiety drug that should not be taken with alcohol or theophyllines.

An 85-year-old man who is a resident in an extended-care facility has athlete’s foot. After applying an antifungal cream, what is the nurse’s next action?

Wipe away excess medication from the affected area.

Wrap a sterile kling dressing around both feet.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Elevate the feet for 30 minutes.

Apply clean dry socks.

Ans:

175

Feedback: Clean dry socks should be applied when treating athlete’s foot to help eradicate the infection because they will keep the feet dry as well as prevent the cream from being wiped away. A kling dressing is not necessary as it would bind the feet and interfere with mobility and increase the risk of systemic absorption. Medication should not be removed once applied, and there is no need to elevate the feet unless another medical condition warrants this action. 8.

A patient comes to the clinic and is diagnosed with a vaginal fungal infection. The nurse provides patient information for self-administration of a vaginal antifungal medication. What will the nurse include in the instructions?

Insert low into the opening of the vagina.

Discontinue use during menstruation.

Remain recumbent for at least 15 minutes after insertion.

Rub the cream into the vaginal wall after insertion.

Ans:

C Feedback: The patient should remain recumbent at least 10 to 15 minutes after the medication is deposited high in the vagina so that leakage will not occur and absorption will take place. The effectiveness of the medication is determined by the consistent application for each specified dose for maximal results. The nurse would instruct the patient to continue the medication during menstruation. Stopping the drug and restarting it later can lead to the development of resistant strains of the drug. The cream need not be rubbed into the vaginal wall as it will coat the wall naturally after insertion.

A patient who is using a topical antifungal agent to treat mycosis calls the clinic to report a severe rash that is accompanied by blisters. What will the nurse instruct the patient to do?

Continue the drug as the prescription indicates.

Scrub the rash with soap and water.

Stop using the drug immediately.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Decrease the amount of the medication used.

Ans:

176

Feedback: The patient should stop using the drug. The rash could indicate sensitivity to the drug or worsening of the condition being treated. Scrubbing the rash could cause further irritation and increase the risk for other infections. Continuing the drug could cause further complications. Decreasing the medication would be ineffective in treating the infection while continuing to risk further complications. 10.

The nurse admitted a 25-year-old woman to the unit. What would be the most important thing for the nurse to assess before administering ketoconazole?

Complete blood count (CBC) and blood glucose

Eating and sleeping habits

Height and weight

Renal and hepatic function

Ans:

D Feedback: It would be important for the nurse to know the patient’s CBC, blood glucose level, eating and sleeping habits, and height and weight. All of these factors could help determine a specific dosage. However, the most important factor would be the patient’s renal and hepatic function because hepatic or renal toxicity could occur quickly if the organs are not functioning properly.

11.

What drug would the nurse administer orally without the need to question when treating infections caused by Candida albicans?

Amphotericin B (Abelcet)

Tolnaftate (Tinactin)

Griseofulvin (Fulvicin)

Fluconazole (Diflucan)

Ans:

D Feedback:

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Fluconazole is available for oral use and is effective in treating C. albicans. Amphotericin B is reserved for severe and potentially fatal infections, so it would not be used for a C. albicansinfection. Tolnaftate is used to treat athlete’s foot and is applied topically, not given orally. Griseofulvin is applied topically and is used to treat tinea, not C. albicans. 12.

When administering a topical antifungal via the vaginal route, what action would the nurse take?

Place the patient in left lateral Sims’ position.

Applied using sterile technique

Administered high into the vagina.

Insert a tampon after insertion.

Ans:

C Feedback: Vaginal antifungals should be administered high into the vagina. The patient should be placed in a recumbent position for insertion. Clean technique (not sterile) should be used. Inserting a tampon after administration is not necessary.

13.

By what route would the nurse administer amphotericin B?

Intravenously

Intramuscularly

Orally

Topically

Ans:

A Feedback: Amphotericin B is only administered by the IV route. It cannot be given intramuscularly, orally, or topically.

14.

What classification of medication will the nurse administer concurrently with amphotericin B (Fungizone) to help minimize the adverse reactions to this medication? Sedatives

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Antipyretics

Beta-adrenergic blockers

Diuretics

Ans:

178

Feedback: Amphotericin B is often given with antipyretics to improve patient comfort and to minimize adverse reactions. Sedatives, beta-adrenergic blockers, and diuretics are not indicated for use with amphotericin B unless the patient has a coexisting diagnosis that would indicate a need for these drugs. 15.

The nurse provides teaching about amphotericin B (Fungizone) for an 82-year-old patient. The nurse evaluates the patient understood teaching when he says he could develop what condition?

Diabetes

Liver necrosis

Kidney damage

Pancreatitis

Ans:

C Feedback: Amphotericin B is nephrotoxic so the patient needs to understand the risk of kidney damage. Other risks of amphotericin B include bone marrow suppression; GI irritation with nausea, vomiting, and potentially severe diarrhea; anorexia and weight loss; and pain at the injection site with the possibility of phlebitis or thrombophlebitis, but it does not cause diabetes, liver necrosis, or pancreatitis.

16.

The nurse is reviewing the patient’s medications and sees fluconazole has been ordered. The nurse will question this order when finding the patient is taking what other medication?

Digoxin

Humulin insulin

Acetaminophen

Hydrochlorothiazide

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

179

A Feedback: Fluconazole strongly inhibit the cytochrome P450 (CYP450) enzyme system in the liver and are associated with many drugdrug interactions, such as increased serum levels of the following agents: cyclosporine, digoxin, oral hypoglycemics, warfarin, oral anticoagulants, and phenytoin. Diphenhydramine, acetaminophen, and hydrochlorothiazide have no impact on fluconazole. There is no indication that humulin insulin, acetaminophen, and hydrochlorothiazide are contraindicated when taking fluconazole.

17.

The nurse administers nystatin (Mycostatin) to a patient with thrush (oral candidiasis). How does the medication work in the body?

Changes membrane permeability

Prevents reproduction of fungal cells

Fungistatic

Inhibits glucan synthesis

Ans:

A Feedback: Nystatin binds to sterols in the cell wall, changing membrane permeability and allowing leaking of the cellular components, which will result in cell death. Nystatin is not a fungistatic (prevents reproduction of fungal cells) and it does not inhibit glucan synthesis.

18.

The nurse teaches the patient to administer butoconazole (Gynazole) for vaginal candidal infection. What instructions will the nurse supply?

Fill the applicator with the medication and insert it into the vagina at bedtime.

Apply the medication to the perineal area twice a day and wear white cotton underwear.

Soak in a sitz bath twice daily and insert the medication into the vagina after the bath.

Take one tablet by mouth and be sure to follow the medication with a full glass of water.

Ans:

A Feedback:

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180

Butoconazole (Gynazole) is administered once daily and should be inserted high into the vagina with the patient remaining recumbent for at least 10 to 15 minutes after insertion. Using the medication at bedtime helps decrease losing the medication by gravity and extends the time the medication will be in contact with the vaginal wall. The medication is not usually applied to the perineum unless the infection has traveled outside the vagina. Sitz baths are contraindicated because fungi flourish in moist environments. This medication is not administered orally and can only be applied topically. 19.

What medication could the nurse administer in a single dose for effective treatment of the patient’s vaginal candidal infection?

Caspofungin (Cancidas)

Terbinafine (Lamisil)

Ketoconazole (Nizoral)

Tioconazole (Monistat-1)

Ans:

D Feedback: Tioconazole may be given as one dose for treatment of vaginal candidal infection. Caspofungin is given IV to treat invasive aspergillosis in patients who did not respond to other treatments and would not be used for a vaginal candidal infection. Terbinafine is administered twice daily for 1 to 4 weeks to treat topical mycosis. Ketoconazole is administered orally or topically to treat aspergillosis, leishmaniasis, cryptococcosis, blastomycosis, moniliasis, coccidioidomycosis, histoplasmosis, and mucormycosis but would not be used to treat vaginal candidal infections.

20.

The nurse works on a renal transplant unit and receives an order for posaconazole (Noxafil) for the patient which the nurse interprets to mean the patient has what infection?

Blastomycosis

Aspergillus

Mucormycosis

Coccidioidomycosis

Ans:

B Feedback: Posaconazole is used for prophylaxis treatment of invasive Aspergillus and Candida infections in adults and children older than 13 years who are immunosuppressed secondary to antineoplastic,

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181

chemotherapy, graft-versus-host disease following transplants, or hematological malignancies. Posaconazole would not be used to treat blastomycosis, mucormycosis, or coccidioidomycosis. 21.

The nurse admits a patient diagnosed with a systemic fungal infection and is ordered IV fluconazole. When developing the plan of care for this patient, the nurse would use what nursing diagnosis related to this medication?

Chronic pain related to the gastrointestinal (GI) system, central nervous system (CNS), and local effects of drug

Risk for altered perfusion secondary to system cardiovascular effects of drug

Disturbed sensory perception (kinesthetic) related to CNS effects

Monitor IV sites to ensure that phlebitis or infiltration does not occur.

Ans:

C Feedback: Nursing diagnoses related to drug therapy might include disturbed sensory perception (kinesthetic) related to CNS effects. Cardiovascular effects are not a concern with this medication; acute, not chronic, pain is associated with GI, CNS, and local effects of the drug; option D is an intervention, not a nursing diagnosis.

22.

The nurse is caring for a patient receiving an oral fungicide to treat a systemic fungal infection. What intervention would the nurse include in the plan of care?

Maintain complete bed rest.

Assess for cyanosis every 4 hours.

Administer medication 1 hour before meals.

Monitor nutritional status.

Ans:

D Feedback: Monitor nutritional status and arrange a dietary consultation as needed to ensure nutritional status secondary to gastrointestinal (GI) upset related to medication. Complete bed rest is unnecessary. Cyanosis is not an anticipated problem. Medications should be given with food not before meals.

23.

What factors would the nurse indicate as contributing to an increase in diagnosed fungal infections? (Select all that apply.)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Acquired immunodeficiency syndrome (AIDS)-related complex

Increased prevalence of cancer

Rise in birth rates across the country

Greater number of older adults

Increased use of immunosuppressants

Ans:

A, D, E

182

Feedback: The incidence of fungal infections has increased with the rising number of immunocompromised peoplepatients with AIDS and AIDS-related complex (ARC), those taking immunosuppressant drugs, those who have undergone transplantation surgery or cancer treatment, and members of the increasingly larger elderly population, who are no longer able to protect themselves from the many fungi that are found throughout the environment. Cancer rates and birth rates are declining and do not contribute to the increase in diagnosis of fungal infection. 24.

A patient who has received a heart transplant is taking cyclosporine. The patient is found to have a systemic Aspergillus infection. What drug would the nurse question if ordered for this patient?

Terbinafine

Posaconazole

Itraconazole

Ketoconazole

Ans:

D Feedback: Ketoconzaole and fluconazole strongly inhibit the cytochrome P450 (CYP450) enzyme system in the liver and is associated with many drugdrug interactions such as increased serum levels of the following agents: cyclosporine, digoxin, oral hypoglycemics, warfarin, oral anticoagulants, and phenytoin. There is no known drug interaction between cyclosporins and terbinafine, posaconazole, or itraconazole.

25.

When caring for a patient with a secondary immunodeficiency disease following kidney transplantation being treated for candidemia the nurse can anticipate receiving an order for what medication?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Amphotericin B

Anidulafungin

Flucytosine

Butoconazole

Ans:

183

Feedback: Anidulafungin (Eraxis) is used for the treatment of candidemia (infection of the bloodstream) and other forms of candidal infections, intra-abdominal infections, and esophageal candidiasis. Amphotericin B is not indicated in the treatment of candidemia. Flucytosine is indicated for the treatment of candidemia but is excreted primarily in the urine so would be contraindicated in a patient with a transplanted kidney. Butoconazole is a topical medication that would not be appropriate for use treating a systemic bloodborne fungal infection. 26.

Which antifungal would the nurse explain works by inhibiting glucan synthesis

Flucytosine

Terbinafine

Micafungin

Ketoconazole

Ans:

C Feedback: The antifungal medications called echinocandins work by inhibiting glucan synthesis and micafungin is one of the drugs in this classification. Flucytosine is a miscellaneous antifungal agent, whereas terbinafine and ketoconazole are topical agents.

27.

What antifungal would be appropriate for the nurse to administer to treat a patient with an oropharyngeal candidiasis?

Itraconazole

Fluconazole

Posaconazole

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Clotrimazole

Ans:

184

Feedback: Clotrimazole is an effective treatment for oropharyngeal candidiasis (in troche form) or to prevent oropharyngeal candidiasis in patients receiving radiation or chemotherapy. Itraconazole, fluconazole, and posaconazole would not be appropriate for this patient because they do not treat oropharyngeal candidiasis infections. 28.

What drug would the nurse recognize as contraindicated for pediatric use?

Fluconazole

Terbinafine

Griseofulvin

Flucytosine

Ans:

D Feedback: Flucytosine does not have proven safety and efficacy in children, and extreme caution should be exercised if it is ordered. Fluconazole, terbinafine, and griseofulvin have established pediatric doses and would be drugs of choice if appropriate for a particular infection.

29.

When caring for a 92-year-old patient, the nurse would anticipate the need for what interventions related to administration of any antifungal medications? (Select all that apply.)

Dose reduction

Frequent monitoring

Frequent testing of liver function

Shorter course of treatment

Continuous cardiorespiratory monitoring

Ans:

A, B, C

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Feedback: Patients over age 85 are at increased risk for some liver dysfunction and require more careful monitoring, lower dosages, and frequent assessment of liver function studies. Course of treatment should not be shortened, but dosage should be reduced. Continuous cardiorespiratory monitoring is not indicated. 30.

A 15-year-old patient is immunocompromised because of the adverse effects of chemotherapy. He or she has developed severe migraine headaches and is being treated with ergot. What drug would be contraindicated in this patient?

Caspofungin

Ketoconazole

Posaconazole

Terbinafine

Ans:

C Feedback: Patients being treated with voriconazole or posaconazole should be cautioned about the risk of ergotism if they combine this drug with ergot, an herb frequently used to treat migraine headache and menstrual problems. If the patient is using voriconazole, it should be suggested that ergot not be used until the antifungal therapy is finished. The other options do not have a known drug interaction with ergot.

31.

The nurse is reading the patient’s medical record and discovers the patient has a mycosis and interprets this as meaning what?

An infection caused by a fungus

A fungus normally found on mucous membranes

A systemic fungal infection

A fungal infection with a secondary bacterial infection

Ans:

A Feedback: A mycosis is simply a fungal infection. It does not give any indication of type or where it is found and has nothing to do with a bacterial infection.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

32.

186

The nurse admits a patient suspected of having a fungal infection. What action will the nurse need to take before a systemic antifungal can be prescribed? (Select all that apply.)

Initiate IV therapy.

Assess history of liver or kidney disease.

Obtain a culture of the fungus.

Request the patient sign a consent form.

Assess history of lymphatic disease.

Ans:

B, C Feedback: The nurse would assess the patient for history of liver or kidney disease because systemic antifungals carry a higher risk of adverse effects and toxicity in patients with disease of these organs. A culture to determine the type of fungus should also be performed to increase the likelihood of the correct medication being prescribed. Not all antifungals are administered IV so this may not be necessary and would not be initiated until a drug was prescribed. A consent form is not needed by most facilities. History of lymphatic disease would not be associated with concern related to antifungal medications.

33.

The patient is admitted for IV administration of antifungal medication with the plan to discharge the patient on oral medication in a few days. What medication would the nurse be able to administer both IV and orally?

Fluconazole

Itraconazole

Posaconazole

Terbinafine

Ans:

A Feedback: Fluconazole and voriconazole are available in oral and IV preparations, making it possible to start the drug IV for a serious infection and then switch to an oral form when the patient’s condition improves and he or she is able to take oral medications. Itraconazole, posaconazole, and terbinafine are administered only orally.

34.

The nurse admits a patient diagnosed with diabetes who has been undergoing fertility treatment in the

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187

hopes of becoming pregnant but is not pregnant at this time. The patient has a life-threatening fungal infection and requires systemic antifungal therapy. What medication would be contraindicated in this patient? A)

Ketoconazole

Fluconazole

Posaconazole

Itraconazole

Ans:

A Feedback: Ketoconazole is not the drug of choice for patients with endocrine or fertility problems because of its effects on these processes. It is not known whether posaconazole crosses the placenta or enters breast milk, so it should not be used during pregnancy or lactation unless the benefits clearly outweigh the potential risks but has no risk to those with fertility or endocrine problems. Fluconazole and itraconazole would be safe for this patient.

35.

The nurse is assessing the patient’s medication history and learns the patient received a prescription for voriconazole from one provider and a prescription for an ergot alkaloid from another provider. The nurse realizes this patient is at risk for, and needs to be assessed for, what condition?

Liver toxicity

Central nervous system (CNS) depression

Ergotism

Renal toxicity

Ans:

C Feedback: This patient is at risk for ergotism and would require an electrocardiographic or rhythm strip to assess the QT interval because ergotism manifests with prolonged QT intervals. The drug combination does not contribute to hepatic or renal toxicity or depression of the central nervous system.

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Chapter 12 - Antiprotozoal Agents

The patient is having an acute malarial attack with chills and fever. The nurse knows chills and fever are caused by what?

Formation of sporozoites into the system

Rupture of red blood cells due to invasion of merozoites

Invasion of the tsetse fly into the central nervous system

Release of amastigotes into the blood vessels

Ans:

B Feedback: The chills and fever associated with an acute malarial attack are caused by the rupture of red blood cells containing merozoites. These symptoms are related to the pyrogenic effects of the protozoa and the toxic effects of the red blood cell components on the system. The formation of sporozoites occurs in the stomach of the mosquito when the male and female gametocytes mate and produce a zygote. Invasion of the tsetse fly causes trypanosomiasis, which affects the central nervous system. The release of amastigotes occurs in leishmaniasis, which is caused by the sand fly and is part of a cyclic pattern that causes serious skin lesions.

The nurse is caring for a patient of Greek descent who plans to travel to an area of the world in which malaria is endemic. What should this patient be tested for before administering antimalarial medications?

Tay-Sachs disease

Glucose-6-phosphate dehydrogenase (G6PD) deficiency

Plasmodium

Penicillin allergy

Ans:

B Feedback: Patients of Mediterranean descent, including Greeks, are more likely to have a G6PD deficiency. When patients with this deficiency take primaquine, chloroquine, or quinine, an acute hemolytic crisis may occur. Patients of Mediterranean descent should be tested for G6PD deficiency before any antimalarial

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drugs are prescribed. Tay-Sachs disease is a disorder seen in those of middle-eastern descent that causes death of the child by age 5. Plasmodium is the genus strain that causes malaria. Penicillin allergy has no connection to this situation. 3.

The nurse is caring for a patient who is being treated with quinine (Qualaquin) for drug-resistant malaria. The nurse will monitor the patient for cinchonism that will present with what manifestations?

Diarrhea, nausea, and fever

Yellowing of the sclera and skin

Tremors and ataxia

Vomiting, tinnitus, and vertigo

Ans:

D Feedback: Patients with cinchonism or quinine toxicity may complain of tinnitus, headache, dizziness, nausea, fever, tremors, and visual disturbances. Diarrhea, yellowing of the sclera or skin, and ataxia are not associated with cinchonism.

Patients receiving chloroquine (Aralen Phosphate) for malaria prophylaxis should receive patient teaching from the nurse, which includes instructions to receive what regularly?

Cardiovascular studies

Eye exams

Immunizations

Pulmonary studies

Ans:

B Feedback: Chloroquine is associated with visual disturbances and a patient receiving this drug should receive regular ophthalmic exams. Heart and lung toxicity is not associated with chloroquine use. Immunizations are not associated with chloroquine use.

A 28-year-old woman is planning to be part of a mission team going to Central Africa. She will take mefloquine (Lariam) once a week, beginning 1 week before traveling to Africa until 4 weeks after leaving Africa. What precaution will the nurse teach this patient is needed?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Avoid excessive weight gain.

Have regular cancer screening.

Use contraceptives to avoid pregnancy.

Stop the medication if diabetes is diagnosed.

Ans:

190

Feedback: Mefloquine is teratogenic and should be avoided during pregnancy. The nurse will want to determine whether a possibility exists that the patient is pregnant and warn about the need to avoid pregnancy for 2 months after completing therapy. Avoiding weight gain and having regular cancer screenings are good preventive care but not associated with mefloquine. This medication is not contraindicated in patients with diabetes. 6.

The nurse is writing a plan of care for a patient receiving antimalarial drug therapy. What nursing diagnosis would be appropriate for this patient if common adverse effects were indicated?

Disturbed sensory perception (visual) related to central nervous system effects

Imbalanced nutrition: more than body requirements

Constipation

Ineffective breathing pattern

Ans:

A Feedback: Visual disturbances, including blindness related to retinal damage from the drug, may occur. Patients usually have gastrointestinal (GI) upset including diarrhea, not constipation, which could produce loss of weight and not an increase. Respiratory disturbances are not associated with antimalarial agents.

During a lecture on intestinal parasites, the students learn that what is the most commonly diagnosed intestinal parasite infection in the United States?

Amebiasis

Giardiasis

Leishmaniasis

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Trichomoniasis

Ans:

191

Feedback: The most commonly diagnosed intestinal parasite in the United States is Giardiasis. It is transmitted through contaminated water or food. Amebiasis is found in the United States but is not the most common. Leishmaniasis is transmitted through sand flies, which are not common in the United States. Trichomoniasis is a flagellated protozoan and most often is seen in the vagina and is spread during sexual intercourse by men who have no signs and symptoms of infection, it is not the most commonly diagnosed. 8.

A patient has been diagnosed with trichomoniasis. Before beginning tinidazole (Tindamax) therapy, what should the nurse question the patient about?

Working conditions

Use of alcohol

Recent visit to a beach or desert

Possibly having AIDS

Ans:

B Feedback: Tinidazole is prescribed for trichomoniasis, which is transmitted during sexual intercourse. The drug should not be used when there is a history of alcohol use. Alcohol use could interfere with the drug’s metabolism in the liver and cause toxicity and patients should be warned to avoid consuming all alcoholic beverages while taking this medication. There is no need to question about working conditions unless transmission involved environmental contamination of food and water, which is not indicated by the question. A recent visit to a beach or desert would be indicated if the patient was diagnosed with leishmaniasis and questioning the patient concerning AIDS would be indicated if the patient had a diagnosis of Pneumocystis carinii pneumonia and would not involve trichomonas.

The nurse is caring for a patient with acquired immunodeficiency syndrome (AIDS) who has been diagnosed with Pneumocystis jiroveci pneumonia. The patient is taking multiple oral agents to treat AIDS. What would be the drug of choice for this patient?

Nitazoxanide (Alinia)

Chloroquine

Metronidazole

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Pentamidine

Ans:

192

Feedback: Pentamidine is available as an inhalation product for the direct treatment of P. jiroveci in patients with AIDS. Because the patient is already taking multiple oral drugs, inhaler administration would be the best choice. Nitazoxanide, chloroquine, and metronidazole are not effective against P. jiroveci pneumonia. 10.

A patient with giardiasis is being treated with metronidazole. What comment by the patient would indicate that the nurse needs to provide further teaching?

I can continue to work delivering pizza because the disease is not contagious.

I will not lose my hair during drug therapy.

I know I will experience diarrhea during this time.

I shouldn’t experience irregular menstrual periods.

Ans:

A Feedback: Although giardiasis is not contagious, the patient should be encouraged not to drive or operate heavy equipment until the effects of the drug can be assessed because metronidazole can lead to central nervous system adverse effects, including dizziness and lack of coordination. The drug may also cause diarrhea. Loss of hair and irregular menstrual periods are not associated with this drug, so these statements would be correct and would not indicate the need for further teaching.

11.

During treatment of amebiasis with chloroquine (Aralen Phosphate), the nurse assesses the patient for what adverse effects?

Diarrhea

Weight gain

Hypertension

Seizures

Ans:

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Feedback: With amebicides, observe for anorexia, nausea, vomiting, epigastric burning, and diarrhea that can lead to malnutrition and significant weight loss, which the nurse assesses for with each visit to intervene before significant malnutrition occurs. Weight gain, hypertension, or seizures are not associated adverse effects. 12.

The clinic nurse provides teaching for a patient prescribed pyrimethamine (Daraprim) to prevent malaria and instructs on the need to notify the prescriber immediately if what signs and symptoms occur?

Diarrhea, fatigue, weight loss, and anemia

Irritation, rash, or inflammation

Headache, nausea, or constipation

Anorexia, nausea, or vomiting

Ans:

A Feedback: If signs of folate deficiency develop, pyrimethamine will need to be discontinued so the prescriber needs to be notified immediately. Folate deficiency presents with diarrhea, fatigue, weight loss, and anemia. The other signs and symptoms would need to be reported if significant and/or long-lasting.

13.

The mother of a 6-month-old infant comes to the clinic. The mother is diagnosed with a protozoal infection. What would be a priority for the nurse to assess for?

Whether she is breast-feeding

Whether she has a support network

Whether she has money to pay for the medication

Whether she eats a protein-rich diet

Ans:

A Feedback: Assess for lactation because antiprotozoal drugs could enter the breast milk and be toxic to the infant. The other options are part of a complete nursing history but do not specifically relate to treatment for a protozoal infection.

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14.

194

A patient is prescribed mefloquine (Lariam) for malaria prophylaxis. When should the nurse instruct mefloquine be started?

1 week prior to entering an endemic area

1 to 2 days prior to entering an endemic area

On arrival to an endemic area

When mosquitoes are present

Ans:

A Feedback: Lariam should be taken 1 week prior to entering a malarial area. Therefore, options B, C, and D are incorrect.

15.

What statements made by the 36-year-old patient leads the nurse to believe that he or she has understood the teaching regarding metronidazole (Flagyl)?

I will refrain from operating heavy machinery while I am taking this medication.

I will avoid foods high in vitamin C.

I will not drink alcohol while I am taking this medication.

I will contact my physician if I have a cold.

Ans:

C Feedback: Patients should avoid all forms of alcohol while taking metronidazole. Patients do not need to avoid operating heavy machinery,and foods high in vitamin C, and will not contact the physician if they have colds.

16.

The emergency room nurse admits a patient suspected of having giardiasis. What symptoms would the nurse expect the patient to present with?

Voluminous soft unformed stool

Frothy voluminous pale stool

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Pale and mucous-filled stool

Frothy tan stool

Ans:

195

Feedback: Diarrhea, rotten-egg-smelling stool, and pale and mucous-filled stool are commonly seen. Diarrhea is often accompanied by epigastric distress, weight loss, and malnutrition as a result of the invasion of the mucosa. Therefore, options A, B, and D are incorrect. 17.

A 91-year-old man is being treated for Pneumocystis carinii pneumonia with pentamidine (NebuPent). What should the nurse measure when assessing this patient for adverse effects of the medication?

Liver function tests

Serum potassium

Daily blood pressure

Blood urea nitrogen (BUN) and creatinine

Ans:

A Feedback: Patients receiving antiprotozoal agents should be monitored regularly to detect any serious adverse effects. Liver function tests are of particular importance to determine the appropriateness of therapy and to monitor for toxicity. Serum potassium, BUN, and creatinine would indicate kidney damage, which is not normally a risk with this drug. Blood pressure is not indicated for this medication but is an early indicator of health deterioration and is usually included in all provisions of care.

18.

What is the priority teaching point to be provided by the nurse to a patient being treated for trichomoniasis to prevent reinfection?

Meats should be fully cooked before eaten.

Sexual partners should be treated.

Wash hands before eating.

Purify all drinking water when camping.

Ans:

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Feedback: Trichomoniasis is usually spread during sexual intercourse and men often have no symptoms. Women present with red, inflamed vaginal mucosa, itching, burning, and a yellowish green discharge. Women should be taught the importance of having their partners tested and treated simultaneously to prevent reinfection. The other options are healthy lifestyle choices but are not the primary means of preventing reinfection. 19.

How does the nurse teach the patient to take chloroquine (Aralen Phosphate)?

On an empty stomach

With 8 ounces of water

With meals

With orange juice followed by 8 ounces of water

Ans:

C Feedback: Chloroquine should be taken with meals to reduce gastrointestinal (GI) upset; small frequent meals may also reduce negative GI effects. Taking medications, any medication, with adequate amounts of water is always good practice but not specific to this medication. There is no indication that ingestion of orange juice makes any practical difference.

20.

The nurse, learning about malaria, discovers that the transmission of malaria occurs when what is injected into the human body by the infected mosquito?

Sporozoites

Gametocytes

Schizonts

Merozoites

Ans:

A Feedback: Gametocytes are sucked with the blood from an infected person by the mosquito. The gametocytes mate in the stomach of the mosquito and produce a zygote that goes through several phases before forming sporozoites (spore animals) that make their way to the mosquito’s salivary glands. The next

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person who is bitten by that mosquito is injected with thousands of sporozoites. Schizonts are the primary tissue organisms resulting from asexual cell division and reproduction after the sporozoites are introduced into the body. Merozoites are then formed from the primary schizonts. 21.

The nurse is caring for a patient who is taking antimalarial medications. The nurse teaches the patient about the medication and explains the need to report what signs and symptoms immediately because of its association with a serious adverse effect?

Loss of appetite

Loss of hair

Loss of vision

Loss of sensation

Ans:

C Feedback: Report blurring of vision, which could indicate retinal damage; loss of hearing or ringing in the ears, which could indicate central nervous system toxicity; and fever or worsening of condition, which could indicate a drug-resistant strain or noneffective therapy. Loss of appetite is such a common result of the gastrointestinal (GI) effects of the drug that the nurse should provide anticipatory guidance to teach the patient how to maintain adequate nutrition, but the patient does not need to report this unless it becomes serious or unmanageable. Loss of sensation is not a typical adverse effect the nurse would anticipate and teach about.

22.

The nurse is caring for a patient who just returned from a trip to South America and was infected by the protozoan Trypanosoma cruzi. What will the nurse assess for in this patient?

Serious lesions in the skin

Sleeping sickness

Severe cardiomyopathy

Yellowish green vaginal discharge

Ans:

C Feedback: Chagas’ disease, which is caused by T. cruzi, is passed to humans by the common house fly. This protozoan results in a severe cardiomyopathy that accounts for numerous deaths and disabilities in certain regions. Sleeping sickness results from T. brucei gambiense; leishmaniasis produces serious lesions in the skin, and trichomoniasis produces a yellowish green discharge.

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23.

198

A patient with malaria is taking primaquine. What would indicate to the nurse caring for this patient that the patient has cinchonism?

Diarrhea

Abdominal cramping

Tan, frothy stool

Vertigo

Ans:

D Feedback: Cinchonism (nausea, vomiting, tinnitus, and vertigo) may occur with high levels of primaquine. Symptoms of cinchonism do not include diarrhea, abdominal cramping, or tan, frothy stool.

24.

A patient has been prescribed an antimalarial as prophylaxis for the disease. What assessment finding would the nurse recognize as indicating the patient has a common adverse effect?

Dyspepsia

Hematemesis

Tarry stool

Tachycardia

Ans:

A Feedback: Nausea, vomiting, dyspepsia, and anorexia are associated with direct effects of the antimalarial medications on the GI tract and the effects on central nervous system control of vomiting caused by the products of cell death and protein changes. Adverse effects from antimalarial drugs do not usually include hematemesis, tarry stool, or tachycardia.

25.

A patient presents at the emergency department complaining of sudden onset of high fever and swelling and reddening of the limbs. Assessment shows severe hypotension. The nurse taking the patient’s history notes that the patient has recently returned to the United States from the African continent. The patient is admitted to the intensive care unit (ICU) suspected of having malaria caused by what protozoan?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Plasmodium ovale

Plasmodium falciparum

Plasmodium vivax

Plasmodium malariae

Ans:

199

Feedback: P. falciparum is considered to be the most dangerous type of protozoan. Infection with this protozoan results in an acute, rapidly fulminating form of the disease with high fever, severe hypotension, swelling and reddening of the limbs, loss of red blood cells, and even death. The other options are pathogens that cause milder forms of the disease and P. ovale is rarely encountered. 26.

Pyrimethamine (Daraprim) has been ordered for the patient as prophylactic treatment of malaria. The nurse recognizes the action of this drug prevents relapse of the disease by acting on what?

Changing the metabolic pathways for reproduction

Disrupting the mitochondria of the plasmodium

Blocking the use of folic acid

Increasing the acidity of plasmodial food vacuoles

Ans:

C Feedback: Pyrimethamine is used in combination with agents that act more rapidly to suppress malaria; it acts by blockings the use of folic acid in protein synthesis by the plasmodium, eventually leading to inability to reproduce and cell death. Chloroquine changes the metabolic pathways for reproduction of the plasmodium and is toxic to parasites that absorb it. Primaquine disrupts the mitochondria of the plasmodium. Mefloquine increases the acidity of plasmodial food vacuoles causing cell rupture and death.

27.

A patient, recently returned from a vacation in the tropics, is diagnosed with leishmaniasis. The patient asks the nurse how he or shes got this disease. What is the nurse’s best response?

You got this disease from a mosquito bite.

You got this disease from unsanitary drinking water.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

You got this disease from eating unsanitary food.

You got this disease from the bites of sand flies.

Ans:

200

Feedback: Leishmaniasis is a disease caused by a protozoan that is passed from sand flies to humans. Therefore, options A, C, and D are incorrect. 28.

The patient, newly diagnosed with African sleeping sickness, asked what caused the disease. What is the nurse’s best response?

Trypanosoma brucei gambiense

Giardia lamblia

Promastigote

Trypanosoma cruzi

Ans:

A Feedback: African sleeping sickness, which is caused by Trypanosoma brucei gambiense, is transmitted by the tsetse fly. After the pathogenic organism has lived and grown in human blood, it eventually invades the central nervous system, leading to acute inflammation resulting in lethargy, prolonged sleep, and even death. G. lamblia causes giardiasis; T. cruzi causes Chagas’ disease. A promastigote is a flagellated protozoan that causes leishmaniasis.

29.

The patient, a physician returning from a trip to the tropics, is prescribed chloroquine and asks the nurse how it works. What is the nurse’s best response?

Blocks the plasmodium’s ability to synthesize ribonucleic acid

Changes the metabolic pathways necessary for the reproduction of the plasmodium

Interrupts the cell wall preventing entry of nutrients into the plasmodium

It is alkaline and decreases the ability of the parasite to synthesize deoxyribonucleic acid (DNA).

Ans:

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201

Feedback: Chloroquine is currently the mainstay of antimalarial therapy. This drug enters human red blood cells and changes the metabolic pathways necessary for the reproduction of the plasmodium (see Figure 12.1). In addition, this agent is directly toxic to parasites that absorb it, it is acidic, and it decreases the ability of the parasite to synthesize DNA, leading to a blockage of reproduction. 30.

What antimalarial medication is used as a radical cure of Plasmodium vivax malaria?

Chloroquine

Mefloquine

Pyrimethamine

Primaquine

Ans:

D Feedback: Primaquine (generic) is the only drug indicated for the prevention of relapses of P. vivax and P. malariae infections and a radical cure of P. vivax malaria. It may be given in combination with other drugs that interrupt the cell cycle at other stages. None of the other options are indicated for this use.

31.

The nurse, working in a pediatric clinic, admits a patient who will be traveling to a country where malaria is endemic. What is the safest treatment for this child?

No prophylaxis is administered because of the severity of adverse effects.

Call the Centers for Disease Control and Prevention (CDC) or local health department for the safest possible treatment.

Administer extremely small doses of chloroquine.

Any antimalarials in appropriate dosages can be administered.

Ans:

B Feedback: Although dosages for prophylaxis have been calculated to treat malaria in children, many drugs have not been proven to be safe and efficient in that population and extreme caution is needed .If a child needs to travel to an area with endemic protozoal infections, the CDC or local health department should be consulted about the safest possible preventive measures. As a result, the other options are incorrect.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

32.

202

What statement, if made by the nurse, would be correct?

Malaria can live without a host and be contracted from drinking standing water.

Any mosquito can carry the plasmodium that transmits malaria.

A major problem with controlling malaria is the mosquito that is resistant to insecticide.

Widespread efforts at mosquito control have never been helpful.

Ans:

C Feedback: Widespread efforts at mosquito control have been successful, with fewer cases of malaria being reported each year. However, the rise of insecticide-resistant mosquitoes has allowed malaria to continue to flourish, increasing the incidence of the disease. Malaria requires a host to live, whether it is human or mosquito. Only the female Anopheles mosquito harbors the protozoal parasite and carries it to humans.

33.

The nurse is caring for a patient diagnosed with amebiasis caused by Entamoeba histolytica that resulted in the patient having amebic dysentery. What questions might the nurse ask in an attempt to discover how the patient came in contact with the organism? (Select all that apply.)

Have you traveled outside the country recently?

Have you been swimming in a lake or pond recently?

Have you been eating fresh fruits or vegetables without washing them first?

Have you been bitten by a mosquito?

Have you had unprotected sex recently?

Ans:

A, B, C Feedback: The disease is transmitted while the protozoan is in the cystic stage in fecal matter, from which it can enter water and soil. It can be passed to other humans who drink this water or eat food that has been grown in this ground. It is not passed by a mosquito or from sexual activity.

34.

The nurse explains that the drugs metronidazole (Flagyl) or tinidazole (Tindamax) can be administered to treat what protozoan infections? (Select all that apply.)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Trichomoniasis

Giardiasis

Amebiasis

Pneumocystis carinii pneumonia

Cryptosporidium parvum

Ans:

A, B, C

203

Feedback: Metronidazole or tinidazole are effective treatments for trichomoniasis, giardiasis, and amebiasis. They are not effective for P carinii pneumonia or C. parvum. 35.

How does the nurse adapt the plan of care when caring for an older adult receiving an antiprotozoal agent?

Patients should be monitored more closely for toxic adverse effects.

The drug dosage should be lowered for all older adults.

Antiprotozoal agents should not be administered to older adults.

Female patients of appropriate age should be advised to use barrier contraceptives.

Ans:

A Feedback: Older patients may be more susceptible to the adverse effects associated with these drugs. They should be monitored closely. Dosage should only be lowered if the patient has hepatic dysfunction or if hepatic dysfunction is anticipated. Antiprotozoal agents can be administered to older adults with caution when the benefit outweighs the risk. It is not necessary for older adult women to use barrier methods of contraceptives because they are no longer of childbearing age.

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Chapter 13 - Anthelmintic Agents

A public health nurse is speaking to parents of first graders. When discussing worm infection, the nurse will explain that the most common type found in U.S. school-aged children is what?

Pinworms

Roundworms

Threadworms

Whipworms

Ans:

A Feedback: The most common worm infection encountered in U.S. school-aged children is pinworms. These worms are endogenous to the area and easily spread. Roundworms, whipworms, and threadworms are not as common.

A mother of a 3-year-old child brings her child to the clinic. The child is diagnosed with pinworms. What drug would be the best choice for the patient?

Pyrantel (Pin-Rid)

Ivermectin (Stromectol)

Mebendazole (Vermox)

Albendazole (Albenza)

Ans:

C Feedback: Mebendazole is the most commonly used anthelmintic for pinworms because it is available in a chewable tablet. This is a good choice for the 3-year-old patient. Pyrantel is also prescribed for pinworms but is not available in a chewable form. Ivermectin is prescribed for treatment of threadworm disease and albendazole is given to treat active lesions caused by pork tapeworm and cystic disease of the liver, lungs, and peritoneum caused by dog tapeworm.

A nurse is teaching a young mother about administering pyrantel (Pin-Rid, others) to her 5-year-old child. What will the nurse emphasize about how the agent is given?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

In 3 doses as a 1-day treatment

In a morning dose and an evening dose for 3 days

B.I.D. for 10 days

Give only once

Ans:

205

Feedback: Pyrantel is administered orally as a single dose. Albendazole is prescribed for hydatid disease and is given twice a day for 8 to 30 days of treatment. Mebendazole is used in the treatment of diseases caused by pinworms, roundworms, whipworms, and hookworms and is given in a morning and evening dose for 3 days. Praziquantel is used to treat schistosomes and is taken in three doses as a 1-day treatment. 4.

A patient has been diagnosed with roundworms and is to be treated with albendazole. A priority nursing assessment of this patient would be to determine if the patient is taking what?

Cimetidine (Tagamet)

Pioglitazone (Actos)

Alprazolam (Xanax)

Loperamide (Imodium)

Ans:

A Feedback: The adverse effects of albendazole, which are already severe, may increase if the drug is combined with dexamethasone, praziquantel, or cimetidine. These combinations should be avoided if at all possible; if they are necessary, patients should be monitored closely for the occurrence of adverse effects. Pioglitazone is an oral antidiabetic agent that could be taken with albendazole. Loperamide is an antidiarrheal drug that may be used for treatment of diarrhea as a result of the mebendazole and pyrantel. Alprazolam should not be a concern.

5. A)

What would be a priority nursing action related to the care of a patient taking albendazole (Albenza)? Check blood pressure, pulse, and respirations

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Weigh the patient

Monitor renal function

Encourage small, frequent meals

Ans:

206

Feedback: It is important that the patient’s kidney function be monitored because a serious adverse effect of this drug is renal failure. Even though vital signs, weight, and nutrition are important and should be monitored, if the patient exhibits any signs of renal failure the drug should be stopped immediately. 6.

The nurse is caring for an adult patient receiving a prescription for an anthelmintic drug. What is a possible nursing diagnosis for this patient?

Constipation

Disturbed body image

Acute confusion

Imbalanced nutrition: More than body requirements

Ans:

B Feedback: A potential nursing diagnosis for the patient would be disturbed body image related to diagnosis and treatment. There is a stigma associated with having helminthic infections. Treatment can cause diarrhea, loss of hair, and pruritus, which could be noticed by others and further impact the patient’s body image. Usually these drugs do not cause constipation; they have not been linked to confusion.

A nurse is teaching a patient who has been diagnosed with trichinosis. The nurse will include in the discussion that trichinosis is caused by roundworms having what effect?

Disruption of the host’s normal cellular functions causing cell death and resulting in disease

Invasion of body tissues seriously damages lymphatic tissue, lungs, the central nervous system, heart, and liver

Exposure to the delicate mucous membranes of the anus and colon producing local irritation

Easily passed from one individual to another resulting in rapid spreading within a work place

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Ans:

207

B Feedback: Trichinosis is a disease caused by the ingestion of the encysted larvae of the roundworm from undercooked pork. These worms exist outside the intestinal tract and can seriously damage the tissues they invade. The worms do not spread rapidly through a large group of people unless they have all eaten the undercooked pork. They do not enter cells to alter human cellular function.

When instructing a patient about the therapeutic effectiveness of an anthelmintic drug, the nurse would be sure to include what?

Any person exposed to the patient should also be treated.

The drugs should never be taken with food.

The infected person should be isolated.

Strict hygiene measures are important in eradicating the worm.

Ans:

D Feedback: When treating a patient with an anthelmintic drug, the patient should be instructed to follow strict hand washing and hygiene measures as an adjunct in eradicating the worm. Isolation is not necessary and prophylactic treatment is not effective with worms. Anthelmintics are often taken with food to decrease the gastrointestinal (GI) adverse effects.

The nurse is caring for a patient diagnosed with hookworms. The patient is receiving mebendazole (Vermox). What would the nurse expect to see in this patient?

Increased bilirubin

Decreased hematocrit and hemoglobin

Increased aspartate transaminase levels

Decreased blood sugar

Ans:

B Feedback:

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Hookworms can cause anemia and fluid and electrolyte imbalances because of the amount of blood that is sucked from the walls of the intestine. A decreased hematocrit and hemoglobin would indicate anemia and is often found in patients with hookworm. Bilirubin and aspartate transaminase indicate liver function. Because mebendazole is not absorbed systemically, adverse effects are limited to abdominal effects such as discomfort, diarrhea, or pain so this drug would not impact bilirubin or aspartate transaminase levels. Neither the disease nor drug should decrease blood sugar. 10.

A patient is taking an anthelmintic that is absorbed systemically. What adverse effect should the nurse inform the patient might be experienced?

Abdominal discomfort

Diarrhea

Loss of hair

Pain

Ans:

C Feedback: Anthelmintics that are absorbed systemically could cause headache, dizziness, fever, shaking, chills, malaise, pruritus, and loss of hair. Mebendazole and pyrantel are anthelmintics that are not generally absorbed systemically and may cause abdominal discomfort, diarrhea, and pain.

11.

A mother brings her child to the clinic where the child is diagnosed with hookworms. The mother asks how the child got hookworms. What would the nurse tell the mother is the route of entry for hookworm?

Inhalation

Contact with skin

Ingestion of undercooked foods

Blood-borne exposure

Ans:

B Feedback: The larvae penetrate the skin and then enter the blood and within about a week, reach the intestine. Inhalation, ingestion, and blood-borne exposure are incorrect.

12.

A patient is diagnosed with an ascaris infection. The patient asks what the best way is to prevent ascaris

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209

infections. What is the nurse’s best response? A)

Wash hands before eating.

Do not share hairbrushes or hats.

Wash fresh fruits and vegetables before eating.

Avoid heavily populated areas.

Ans:

C Feedback: Ascaris infection occurs where sanitation is poor. Eggs in the soil are ingested with vegetables or other improperly washed foods containing the worm. The patients may be unaware until a worm in their stool is seen or the patient becomes quite ill. Teaching patients the importance of washing fresh fruit and vegetables will help them reduce risk of infection. Washing hands, avoiding sharing hairbrushes or hats, and being aware in populated areas will reduce the risk of other infections but do not relate to ascaris.

13.

What is an appropriate nursing diagnosis for a patient with tapeworm?

Imbalanced nutrition: less than body requirements

Chronic pain

Constipation

Impaired mobility

Ans:

A Feedback: Tapeworm affects the body’s ability to absorb food products and weight loss and malnutrition often follow unless treatment is received promptly. As a result, the best nursing diagnosis is imbalanced nutrition: less than body requirements. Patients with tapeworm are often symptom-free but may experience some abdominal discomfort and distention as well as weight loss so they do not have chronic pain, constipation, or impaired mobility.

14.

Why is it important for a nurse to inquire about any foreign travel of a patient with a suspected lymphatic or hematologic disorder? To determine the varied sexual history of the patient, if any

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

To determine the potential exposure to infectious agents

To determine whether the patient has had any blood transfusions

To determine whether the patient adopted any specific dietary habits

Ans:

210

Feedback: Knowledge of recent travel can help the nurse to pinpoint potential exposure to helminths, parasites, or other infection exposure common in the area visited. The nurse should specifically ask about foreign travel to countries where malaria or parasitic roundworms are common. Sexual history, dietary habits, or any blood transfusions that the patient may have had before would not be adequately explored by questioning travel history. 15.

What helmintic infestation occurs in tropical areas and is carried by snails?

Schistosomiasis

Platyhelminths

Trichinosis

Filariasis

Ans:

A Feedback: Schistosomiasis is a common problem in many tropical areas where the snail that is necessary in the life cycle of the fluke lives. Trichinosis is caused by eating undercooked pork and can occur in any part of the world. Filariasis and platyhelminths are not restricted to tropical areas.

16.

The nursing instructor is discussing helmintic infections with the nursing students. How would the instructor explain the action of anthelmintic drugs?

Destroy the nervous system of the invading worm

Act on metabolic pathways that are present in the invading worm

Interfere in the reproductive cycle of the invading worm

Cause fatal mutations in the deoxyribonucleic acid of the invading worm

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Ans:

211

B Feedback: The anthelmintic drugs act on metabolic pathways that are present in the invading worm, but that are absent or significantly different in the human host. Other options are incorrect descriptions of how anthelmintic drugs work.

17.

What anthelmintics would the nurse expect will be readily absorbed from the gastrointestinal (GI) tract? (Select all that apply.)

Mebendazole

Pyrantel

Albendazole

Praziquantel

Ivermectin

Ans:

D, E Feedback: Praziquantel and ivermectin are readily absorbed from the GI tract. Mebendazole, pyrantel, and albendazole are not.

18.

A mother brings her 18-month-old son into the clinic. The child is diagnosed with pinworms. Which anthelmintic would the nurse expect to be prescribed?

Pyrantel

Mebendazole

Ivermectin

Praziquantel

Ans:

B Feedback: Mebendazole is available in the form of a chewable tablet that would be preferable for a young child.

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Because little of the drug is absorbed systemically, it is safe for children and has few adverse effects, thus making it safer to administer to a child. Pyrantel is not approved for children younger than 2 years old. Ivermectin and praziquantel effects are systemic and would a greater number of adverse effects. 19.

The nurse is caring for a 26-year-old patient diagnosed with roundworms who is prescribed pyrantel. What adverse effect would the nurse teach the patient about?

Vomiting

Itching

Diarrhea

Constipation

Ans:

C Feedback: Mebendazole and pyrantel, which are not absorbed systemically, may cause abdominal discomfort, diarrhea, or pain, but have very few other effects and are well-tolerated. Therefore options A, B, and D are incorrect.

20.

The nurse is caring for a patient taking albendazole. When reviewing the patient’s medication history what drug would cause the nurse to question administering albendazole?

Propranolol

Fexofenadine

Furosemide

Dexamethasone

Ans:

D Feedback: The effects of albendazole, which are already severe, may increase if the drug is combined with dexamethasone, praziquantel, or cimetidine. These combinations should be avoided if at all possible; if they are necessary, patients should be monitored closely for occurrence of adverse effects. No contraindications are noted for propranolol, fexofenadine, or furosemide.

21.

Why is a filariae infestation potentially fatal?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Worm-like embryos overwhelm the lymphatic system

Worm-like embryos invade the central nervous system (CNS)

Worm-like embryos destroy the gastric mucosa

Worm-like embryos hibernate in the brain

Ans:

213

Feedback: Filariasis refers to infection of the blood and tissues of healthy individuals by worm embryos, which enter the body via insect bites. These thread-like embryos, or filariae, can overwhelm the lymphatic system and cause massive inflammatory reactions. While any system can be impacted due to the effect on the blood and lymphatic system, the filariae do not invade the CNS, gastric mucosa, or the brain specifically. 22.

The nurse is caring for a patient diagnosed with threadworm infestation. What is the nurse’s priority assessment related to common manifestations of this infestation?

Gastroenteritis

Pneumonia

Hematuria

Tarry stools

Ans:

B Feedback: Threadworm is a pervasive nematode that can send larvae into the lungs, liver, and central nervous system and can cause severe pneumonia or liver abscess. Threadworms do not cause gastroenteritis, hematuria, or tarry stools.

23.

What infestation would the nurse suspect when the patient manifests with intestinal obstruction caused by the adult worms clogging the lumen of the intestine?

Platyhelminth

Trichinosis

Nematode

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Cestode

Ans:

214

Feedback: Nematode are roundworms such as the commonly encountered pinworm, whipworm, threadworm, Ascaris, or hookworm that cause a common helminthic infection in humans and can cause intestinal obstruction as the adult worms clog the intestinal lumen or severe pneumonia when the larvae migrate to the lungs and form a pulmonary infiltrate. Options A, B, and D are incorrect. 24.

The nurse is caring for a 17-year-old girl who has just been diagnosed with a tapeworm. What is a priority nursing action for this patient?

Monitor hepatic and renal function before and periodically during treatment.

Provide small, frequent, nutritious meals if GI upset is severe.

Instruct the patient about the appropriate dosage regimen.

Offer support and encouragement.

Ans:

D Feedback: Frequently, patients have a very difficult time dealing with a diagnosis of worm infestation. It is very important for the nurse to understand the disease process and to explain the disease and treatment carefully to help the patient to cope with both the diagnosis and the treatment. Options A, B, and C are correct nursing interventions for this patient, but they are not the priority nursing intervention.

25.

The nurse is counseling a patient who has been prescribed mebendazole for a worm infestation. What adverse effects would the nurse caution this patient about?

Fever

Constipation

Nausea

Hematuria

Ans:

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Feedback: Mebendazole is not absorbed systemically so it has few adverse effects. Adverse effects include transient abdominal pain, diarrhea, and fever. Adverse effects do not include constipation, nausea, or hematuria. 26.

When teaching a class of her peers about use of the drug ivermectin, what would the nurse say is the primary route of excretion?

Urine

Feces

Sweat

Both urine and feces

Ans:

B Feedback: Ivermectin is readily absorbed from the gastrointestinal (GI) tract and reaches peak plasma levels in 4 hours. It is completely metabolized in the liver with a half-life of 16 hours and excretion is fecal. Options A, C, and D are incorrect.

27.

Which anthelmintic medication is poorly absorbed from the gastrointestinal (GI) tract and primarily excreted in the urine?

Ivermectin

Praziquantel

Albendazole

Mebendazole

Ans:

C Feedback: Albendazole is poorly absorbed from the GI tract, reaching peak plasma levels in about 5 hours. It is metabolized in the liver and primarily excreted in urine. Although praziquantel is excreted in the urine, it is rapidly absorbed from the GI tract. Mebendazole and ivermectin are excreted in feces.

28.

The nurse is presenting at an educational event about pinworms at the local elementary school during

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an outbreak of the infestation. What suggestion would the nurse give the attendees to prevent a recurrence of the infestation? A)

Tell the children not to share combs and brushes.

Tell the children not to drink out of other peoples drinks.

Avoid pajamas in favor of night gowns.

Shower the children every morning.

Ans:

D Feedback: Some suggested hygiene measures that might help to control the infection include the following: Keep the child’s nails cut short and hands well scrubbed, because reinfection results from the worm’s eggs being carried back to the mouth after becoming lodged under the fingernails when the child scratches the pruritic perianal area. Give the child a shower in the morning to wash away any ova deposited in the anal area during the night. Change and launder undergarments, bed linens, and pajamas every day. Open gowns, rather than pajamas with pants, would not be the best choice because this would allow for greater perianal scratching.

29.

An adult presents at the clinic complaining of a cough, fever, abdominal distention, and pain. The patient is diagnosed with pneumonia and a helminth infection. What type of worm would the nurse suspect the patient has?

Ascaris

Platyhelminth

Hookworm

Schistosomiasis

Ans:

A Feedback: Ascaris manifestations include cough, fever, pulmonary infiltrates, abdominal distention, and pain. Platyhelminth is a flatworm that can live in the human intestine or can invade other human tissues causing malnutrition as the worm competes for the food eaten by the human. Hookworms attach to the small intestine leading to severe anemia, lethargy, fatigue, and weakness. Schistosomiasis presents with a rash and then symptoms of diarrhea and liver and brain inflammation.

30.

A mother asks the nurse what to look for if her child has pinworms. What would be the nurse’s best response?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Hard stools full of worms

Perianal itching

Upset stomach

Bloody diarrhea

Ans:

217

Feedback: Pinworms manifestation includes perianal itching, and occasionally, vaginal itching particularly at night when the pinworms are most active around the anal opening. Pinworms do not usually present in any other manner so the other options are incorrect. 31.

A patient with hookworm infection states that he has a hard time following medication regimens. The nurse knows that what medication would be preferred for this patient?

Pyrantel (Antiminth)

Mebendazole (Vermox)

Ivermectin (Stromectol)

Albendazole (Albenza)

Ans:

A Feedback: Pyrantel can be administered as a single dose, which makes it a good choice for patients who have trouble remembering to take their medications, or have trouble following medication regimens. Mebendazole requires twice-daily dosing, which makes it less optimal for a patient who has trouble with medication regimens. Ivermectin is used to treat threadworm disease (strongyloidiasis) and river blindness (onchocerciasis). Albendazole is used to treat active lesions caused by pork tapeworm and cystic disease of the liver, lungs, and peritoneum caused by dog tapeworm.

32.

What benefit would the nurse describe for treating pinworms and roundworms with a prescription for pyrantel instead of mebendazole?

Pyrantel needs only be taken once.

Mebendazole has many serious adverse effects.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Pyrantel is excreted in the feces.

Pyrantel is safer for children younger than 2 years.

Ans:

218

Feedback: Pyrantel’s big advantage is that it needs only be taken one time so it is a better choice for those who may not remember to take repeated doses. Mebendazole has very few side effects because very little of the medication is absorbed systemically so that is not a reason to prescribe pyrantel. Pyrantel is mostly excreted in the feces but some is also found in urine while mebendazole is only excreted in the feces so this does not benefit prescribing pyrantel. Pyrantel has not been established as safe for use in children under 2 years old. 33.

What laboratory test will the nurse obtain to determine what type of helminth is infecting the patient?

Stool culture

Stool for ova and parasite

Renal function studies

Liver function studies

Ans:

B Feedback: The only test to specifically determine what helminth is involved is a stool culture for ova and parasite. A simple stool culture would not be likely to identify the helminth. Renal and liver function studies would indicate the functioning of these organ systems but would not identify the helminth.

34.

What assessment findings would raise the nurse’s level of suspicion that the patient may be infected with cestodes? (Select all that apply.)

Abdominal discomfort and distention

Weight loss without dieting

Pneumonia

Heart failure

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Encephalitis

Ans:

A, B

219

Feedback: Cestodes enter the body as larvae that are found in undercooked meat or fish; they sometimes form worms that are several yards long, people with a tapeworm may experience some abdominal discomfort and distention, as well as weight loss, because the worm eats ingested nutrients. Trichinosis can result in fatal pneumonia, heart failure, and encephalitis if not treated early, but these symptoms would not be expected with cestode infection. 35.

The nurse is caring for an 85-year-old woman diagnosed with a roundworm infection in addition to heart disease, chronic renal failure, and history of a stroke. The patient is prescribed mebendazole. What assessments will be of particular importance for this patient related to drug therapy? (Select all that apply.)

Hydration

Nutritional status

Liver function

Cognitive function

Respiratory function

Ans:

A, B, D Feedback: Mebendazole is a relatively safe drug with few adverse effects. However, infection by a helminth that impacts absorption of nutrients in a frail older woman could lead to significant dehydration and malnutrition so it would be of particular importance to assess this patient frequently and regularly. Respiratory function, liver function, and cognition would not be impacted by the helminth or the medication, but altered cognition could occur with malnutrition and/or dehydration.

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Chapter 14 - Antineoplastic Agents

The process of cancerous cells exhibiting a loss of cellular differentiation and organization leading to a loss of their ability to function normally is called what?

Anaplasia

Angiogenesis

Autonomy

Metastasis

Ans:

A Feedback: Cancerous cells exhibit anaplasia, which is a loss of cellular differentiation and organization that leads to a loss of their ability to function normally. Angiogenesis refers to the abnormal cells releasing enzymes that generate blood vessels in the area to supply both oxygen and nutrients to the cells. Cancerous cells exhibit autonomy, which is the ability to grow without the usual homeostatic restrictions that regulate cell growth and control. Metastasis is the process of the cancerous cells traveling from the place of origin to develop new tumors.

The mitotic inhibitors interfere with the ability of a cell to divide and they block or alter deoxyribonucleic acid (DNA) synthesis, thus causing cell death. What is important for the nurse to remember when administering these drugs?

The nurse should encourage the patient to eat six small meals a day.

The nurse should avoid any skin, eye, or mucous membrane contact with the drug.

The nurse should avoid using a distal vein.

The nurse should check for extravasation when the infusion is over.

Ans:

B Feedback: Special care needs to be taken when administering these drugs. The nurse should avoid any skin, eye, or mucous membrane contact with the drug. This type of contact can cause serious reactions and toxicity for the nurse. The nurse should check for extravasation frequently during the infusion and not wait until the infusion is completed, a distal vein should be used, nausea and vomiting are commonly

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221

experienced adverse effects of these drugs, and small meals may help the patient to maintain adequate nutrition but this is not the important concern when administering the drug. 3.

A nurse is preparing an antineoplastic agent for a 9-year-old cancer patient. Before administering an antineoplastic agent, what is the nurse’s priority action?

Wash his or her hands.

Identify the child by checking the arm band and asking him or her to state his or her name.

Ensure a quiet environment so the patient can sleep during administration of the drug.

Check laboratory studies to determine most recent measures of bone marrow function.

Ans:

D Feedback: The most important action of the nurse before administering the drug would be to check indexes of bone marrow functioning because these results will help to determine the proper dosage. Smaller dosages are administered if bone marrow function declines, whereas larger dosages can be given if bone marrow function is good. Only after this is checked will the nurse begin the process of actually administering the medication by performing hand hygiene, identifying the patient, and creating a quiet environment.

A patient with leukemia receives rasburicase (Elitek) before administering chemotherapy. What is the nurse’s priority assessment after administration of this medication?

Blood glucose levels

Serum potassium levels

Serum calcium levels

Uric acid levels

Ans:

D Feedback: Rasburicase is approved for the management of plasma uric acid levels in patients with leukemia, lymphoma, and solid malignancies who are receiving antineoplastic therapy associated with tumor lysis and elevated serum uric acid levels. Uric acid levels should be analyzed within 4 hours of each dose of rasburicase. Blood glucose, potassium, and calcium levels should not be affected by administration of the drug.

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The nurse is caring for a patient at risk of severe-to-fatal interstitial lung disease. What antineoplastic agent is the nurse administering that carries this risk?

Valrubicin (Valstar)

Erlotinib (Tarceva)

Histrelin acetate (Vantas)

Triptorelin pamoate (Trelstar Depot)

Ans:

B Feedback: Erlotinib inhibits tyrosine kinase associated with epidermal growth factor found on surfaces of normal and cancer cells and causes serious-to-fatal interstitial lung disease. Histrelin inhibits gonadotropic secretion and decreases follicle-stimulating hormone (FSH) and luteinizing hormone (LH) and testosterone levels and suppresses testosterone production. Hot flashes are very common with this drug. Triptorelin pamoate decreases FSH and LH levels and also suppresses testosterone production. It has also been associated with sexual dysfunction, urinary tract symptoms, bone pain, and hot flashes. Valrubicin is used in intravesical therapy for carcinoma in situ of the bladder. It is also associated with severe bladder spasms.

The nurse is caring for a patient who has just been diagnosed with adenocarcinoma of the pancreas. What antineoplastic does the nurse suspect the patient will receive?

Bleomycin (Blenoxane)

Daunorubicin (DaunoXome)

Idarubicin (Idamycin)

Mitomycin (Mutamycin)

Ans:

D Feedback: Mitomycin is used in before the treatment of disseminated adenocarcinoma of the stomach and pancreas. Bleomycin is used for palliative treatment of squamous cell carcinomas, testicular cancers, and lymphomas. Daunorubicin is the first-line treatment of advanced HIV infection and associated Kaposi’s sarcoma. Idarubicin is used in combination therapy for treatment of acute myeloid leukemia in adults.

The nurse is caring for a patient receiving cyclophosphamide (Cytoxan). What is the priority nursing action for this patient?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Monitor urinalysis results.

Provide small, frequent meals.

Administer an antiemetic when needed.

Provide oral care.

Ans:

223

Feedback: The priority nursing action would be to monitor the patient’s urinalysis results because hemorrhagic cystitis is a potentially fatal adverse effect of cyclophosphamide. Providing small frequent meals, and oral care and administering an antiemetic are necessary to maintain nutrition when GI effects are severe but, assessments come before interventions and these interventions are of lower priority than monitoring for hemorrhagic cystitis. 8.

A 42-year-old woman with breast cancer has had a radical mastectomy. She will have radiation therapy and then begin chemotherapy. Drug therapy will consist of a combination of doxorubicin, cyclophosphamide, and paclitaxel. What will the nurse include in her teaching plan concerning the drug therapy?

Stay on a low-fat diet during the course of the drug therapy.

Take special care when shaving or when brushing her teeth.

Continue to go to church or to the mall just as she did before the diagnosis of cancer.

Stay in bed 2 days after each administration.

Ans:

B Feedback: Special care should be taken when shaving or when brushing her teeth because she may bruise more easily than normal and gums may bleed. A cancer patient should not be on a diet during chemotherapy unless prescribed. Care should be taken to avoid crowds and public places where risk of infection is greater. Cancer patients should remain as active as tolerated, but they should be careful not to overextend themselves physically to promote optimal health.

The nurse should exercise caution when administering antimetabolites to a patient diagnosed with what? Bone marrow suppression

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Diabetes mellitus

Hypertension

Seizure activity

Ans:

224

Feedback: Bone marrow is often the index for dosing and redosing levels. Caution should be used and strict monitoring done for patients with suppressed bone marrow who are receiving an antimetabolite. Diabetes mellitus, hypertension, and seizure activity have not been identified as interfering with this drug therapy. 10.

The nurse is caring for a patient who is receiving a combination of antineoplastic agents. The patient will most likely lose his or her hair. Why would the nurse suggest that he or she get a wig or use appropriate head cover?

People may be uncomfortable seeing his or her bald head.

The hair will likely grow back if the head is covered at all times.

His or her self-esteem will be better if the head is covered.

Heat is lost through the head and it is important to cover it during extremes in temperature.

Ans:

D Feedback: Most of the heat is lost through the head and it is important to cover the head to prevent extreme changes in core temperature, which could affect all biochemical processes in the body. Other people’s feelings should not be an issue in whether she wears a wig or not. Even though loss of hair could decrease self-esteem, patients are usually more concerned about their prognosis. Whether the head is covered or not has nothing to do with hair growing back.

11.

A patient diagnosed with a malignancy is receiving an antimetabolite as part of his or her medication therapy. What would the nurse be sure to teach this patient about his or her antimetabolite medication? (Select all that apply.)

Report all other drugs and alternative therapies he or she is taking.

Use safety measures due to possible dizziness, headache, and drowsiness.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Cover the head at extremes of temperature.

Plan for appropriate exercise regimens.

Avoid being alone as much as possible.

Ans:

A, B, C

225

Feedback: Provide the following patient teaching: Follow the appropriate dosage regimen, including dates to return for further doses. Patients need to be reminded to report all other drugs and alternative therapies that they might be using; maintain nutrition if GI effects are severe; cover the head at extremes of temperature if alopecia is anticipated; plan for appropriate rest periods because fatigue and weakness are common adverse effects of the drugs; avoid infection including avoiding crowded places, sick people, and working in soil; and use safety measures such as not driving or using dangerous equipment due to possible dizziness, headache, and drowsiness. The nurse would not tell the patient to plan for appropriate exercise regimens because patients are more likely to need encouragement to rest; there is no reason he cannot be alone. 12.

The nurse explains that the signs and symptoms caused by cancer are a result of what?

Overgrowth of tumor cells

Enzymes that generate blood vessels

Tumor cells invading healthy tissue

Metastasis

Ans:

C Feedback: As cancer cells grow, they invade and damage healthy host tissues and this is what causes signs and symptoms of cancer. When cancer metastasizes, the tumor cells invade new tissue and other signs and symptoms occur. Cancer cells do overgrow and the abnormal cells do release enzymes that generate blood vessels, but this is not what causes the signs and symptoms of cancer. The effects of neoplasms are not caused by overgrowth of tumor cells, enzymes that generate blood vessels, or metastasis.

13.

The nurse is caring for a patient newly diagnosed with a primary brain tumor. The patient asks the nurse where his or her tumor came from. What is the nurse’s best response?

Your tumor originated from somewhere outside the CNS from a cell just like other cells.

Your tumor is from the pituitary gland in origin.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Your tumor originated from a single cell that is genetically different from nearby cells.

Your tumor is from nerve tissue somewhere in your body.

Ans:

226

Feedback: All cancers start with a single cell that is genetically different from the other cells in the surrounding tissue. Determining the site of the first cell to genetically mutate in this patient would require more information so it is impossible to say if the originating cell was in the CNS, the pituitary gland, or peripheral nerve tissue. 14.

A nurse on the oncology unit is caring for a patient with an astrocytoma. The patient has just been told that the tumor is growing very fast. The patient asks the nurse how these tumors grow. What is the nurse’s best response?

Brain tumors infiltrate the surrounding tissue.

Brain tumors grow by invading the surrounding grey matter.

Brain tumors grow by invading the surrounding white matter.

Brain tumors spread down the spinal cord.

Ans:

A Feedback: Over time, these neoplastic cells grow uncontrollably, invading and damaging healthy tissue in the area and even undergoing metastasis (traveling from the place of origin to develop new tumors in other areas of the body where conditions are favorable for cell growth). The abnormal cells release enzymes that generate blood vessels. Brain tumors can invade either grey or white matter or they can spread down the spinal cord. These responses do not answer the patient’s question.

15.

A patient asks the nurse what a cancer cell’s growth rate is called. What is the nurse’s best response?

Cancer cell’s growth rate is called proliferation.

Cancer cell’s growth rate is called anaplasia.

Cancer cell’s growth rate is called pleomorphism.

Cancer cell’s growth rate is called neoplasm.

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Ans:

227

A Feedback: A cancer cell growth rate is called proliferation. Anaplasia is the loss of organization and structure, pleomorphism is the occurrence of more than one shape of the cell, and a neoplasm is the term for a new or cancerous growth occurring when abnormal cells have the opportunity to multiply and grow.

16.

The nurse is caring for a patient receiving a combination of different antineoplastic medications. The patient asks why they use so many different medications instead of just one drug. The nurse explains that a combination does what? (Select all that apply.)

Decreases the development of cell resistance

Increases the length of treatment

Increases the quantity of each medication used

Decreases the side effects of each medication

Targets different phases of the cell cycle

Ans:

A, E Feedback: Malignant cells that remain in a dormant phase for long periods are difficult to destroy. These cells can emerge long after cancer treatment has finishedafter weeks, months, or yearsto begin their division and growth cycle all over again. For this reason, antineoplastic agents are often given in sequence over periods of time, in the hope that the drugs will affect the cancer cells as they emerge from dormancy or move into a new phase of the cell cycle. A combination of antineoplastic agents targeting different phases of the cell cycle is frequently most effective in treating many cancers. Combinations of drugs do not increase the length of treatment, increase the quantity of medication used, or decrease the adverse effects of the medications used.

17.

The nurse is caring for a patient who is taking bicalutamide (Casodex). For what type of cancer would the nurse administer this drug?

Bladder

Colon

Breast

Prostate

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Ans:

228

D Feedback: Bicalutamide (Casodex) is administered in combination with a luteinizing hormone for the treatment of advanced prostate cancer. This medication would not be effective for treating bladder, colon, or breast cancer because it is a hormone modulator and works only on hormone-requiring cancers.

18.

What nursing diagnosis is a priority for the 87-year-old woman, who has stomatitis secondary to the administration of methotrexate? (Select all that apply.)

Impaired skin integrity

Risk for infection

Imbalanced nutrition

Risk for bleeding

Hopelessness

Ans:

A, B, C, D Feedback: Because of the common adverse effects of severe bone marrow suppression, fatigue, malaise, rashes, alopecia, ulcerative stomatitis, hepatic toxicity, interstitial pneumonitis, chills, fever, and anaphylaxis, priority nursing diagnosis would include impaired skin integrity related to rash, risk for infection, and risk for bleeding related to severe bone marrow suppression. Because the patient has stomatitis, there is a risk for imbalanced nutrition less than body requirements because eating is uncomfortable and not feeling well will also reduce her appetite. Although fear and anxiety are common with any cancer diagnosis, hopelessness is usually not as common unless the patient receives a terminal diagnosis and, even then, many patients are able to remain hopeful.

19.

What measure protects the nurse when preparing cytotoxic drugs?

Wearing protective equipment such as gloves, mask, and gown

Washing hands before preparation

Mixing medication in a 1-L bag

Administering medication IM

Ans:

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Feedback: Cytotoxic drugs are toxic chemicals and the nurse who administers them must take adequate precautions to avoid self-exposure. These precautions include protective equipment. Hand hygiene should be performed before administering any medication but this measure does not protect the nurse. Whether mixing the medication in a 1-L bag or administering it IM, the nurse must wear protective equipment. 20.

The patient has just been started on an alkylating agent to treat cancer. What is the most common adverse effect of most alkylating agents that the nurse will monitor for?

Bone marrow suppression

Nephrotoxicity

Confusion

Depression

Ans:

A Feedback: Hematological effects include bone marrow suppression, with leukopenia, thrombocytopenia, anemia, and pancytopenia, secondary to the effects of the drugs on the rapidly multiplying cells of the bone marrow. Therefore, options B, C, and D are not correct.

21.

The patient is taking ifosfamide as part of his or her cancer treatment. Mesna (Mesnex) is added to the treatment regimen to prevent cystitis induced by the ifosfamide. The nurse explains that mesna works by what action?

By increasing urine output

By shielding the kidney from ifosfamide

By increasing white blood cell production

By combining with a metabolite of ifosfamide

Ans:

D Feedback: Mesna combines with a urotoxic metabolite of ifosfamide to reduce the damaging effects of ifosfamide. It has no effect on urine output, does not provide a shield for the kidney, and has no impact on white blood cell production.

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22.

230

Chlorambucil has been ordered for a patient with Hodgkin’s disease. The patient’s son asks the nurse what adverse effects this drug has. What will the nurse include when responding to this question? (Select all that apply.)

Tremors

Muscle twitching

Confusion

Gynecomastia

Alopecia

Ans:

A, B, C Feedback: Chlorambucil is a palliative treatment for chronic lymphocytic leukemia, malignant lymphomas, and Hodgkin’s disease. Adverse effects include tremors, muscle twitching, confusion, nausea, hepatotoxicity, bone marrow suppression, sterility, and cancer.

23.

A patient with acute myeloblastic leukemia is taking doxorubicin. What medication, if ordered, would the nurse recognize as a cardioprotective drug used in combination with doxorubicin?

Dexrazoxane (Zinecard)

Ixabepilone (Ixempra)

Teniposide (Vumon)

Vinblastine (Velban)

Ans:

A Feedback: Dexrazoxane is a powerful chelating agent that is a cardioprotective drug that interferes with the cardiotoxic effects of doxorubicin. Ixabepilone (Ixempra) is given in combination with capecitabine for the treatment of patients with metastatic or locally advanced breast cancer. Teniposide is given in combination with other drugs for induction therapy in childhood acute lymphoblastic leukemia. Vinblastine is given in combination with other medications as part of the treatment for advanced testicular germ cell cancer.

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24.

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A patient taking tamoxifen to reduce the risk of contralateral breast cancer asks the nurse about adverse effects of the drug. What is an adverse effect of tamoxifen?

Stomatitis

Mucositis

Thrombocytopenia

Cerebrovascular accidents

Ans:

D Feedback: Adverse effects of tamoxifen include hot flashes, rash, nausea, vomiting, vaginal bleeding, menstrual irregularities, edema, pain, cerebrovascular accident, and pulmonary emboli. They do not include stomatitis, mucositis, or thrombocytopenia.

25.

A female patient prescribed methotrexate for meningeal leukemia is asking the nurse about adverse effects of the drug. What would the nurse tell this patient should be avoided while taking methotrexate?

Pregnancy

Aerobic exercise

Smoking

Alcohol

Ans:

A Feedback: Antimetabolites are contraindicated for use during pregnancy and lactation because of the potential for severe adverse effects on the fetus and neonate. The nurse would not caution the patient against aerobic exercise, smoking, or alcohol use because of the medication she was taking.

26.

What is the nurse’s priority intervention to reduce the risk of cystitis caused by cyclophosphamide (Cytoxan)?

Encourage the patient to drink cranberry juice.

Promote adequate rest and sleep.

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Encourage fluids to maintain hydration.

Instruct the patient to wear only cotton underwear.

Ans:

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Feedback: Hemorrhagic cystitis is a potentially fatal adverse effect. Ensure that the patient is well hydrated. Drinking cranberry juice or milk helps to hydrate the patient, but what he or she drinks is less important than that he or she drinks adequate amounts of fluid. Wearing cotton underwear is not an intervention the nurse would teach the patient. 27.

A young man asks the nurse about the goal of the cancer therapy his mother is receiving. What is the nurse’s best response?

The goal is to limit the cancer cells so the immune system can respond without causing too much toxicity to your mother.

The goal is to kill the cancer cells as quickly as possible before they can spread so your mother will be well again.

The goal is to control the speed at which new cancer cells grow so the medication has a better chance to work.

The goal is to keep the cancer cells from spreading all over your mother’s body and choose the drug with the fewest adverse effects.

Ans:

A Feedback: The goal of cancer therapy, much like that of anti-infective therapy, is to limit the offending cells to the degree that the immune system can then respond without causing too much toxicity to the host. Therefore, options B, C, and D are not correct.

28.

The nurse is acting as a mentor for a new graduate nurse who is delivering chemotherapy to a patient in the short-stay unit. What action performed by the new graduate would the mentor teach is not appropriate and requires correction?

Checking the IV line frequently

Using an infusion pump to administer the medication

Premedicating the patient as ordered

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Starting the IV in a large, distal vein

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233

Feedback: If at all possible, do not use an infusion pump to administer one of these drugs because it will continue to deliver the drug under pressure and can cause a severe extravasation. This would be the least beneficial to the patient. Checking the line frequently, premedicating the patient as ordered, and using a large, distal vein would be much more beneficial to the patient. 29.

A patient with rhabdomyosarcoma has been admitted for chemotherapy with vincristine. While preparing a plan of care for this patient, what would be an appropriate nursing diagnosis?

Altered body image due to severe fluid retention

Risk for bleeding due to possible hemorrhagic cystitis

Risk for injury related to muscle wasting and weight loss

Risk of infection related to possible nosocomial infection

Ans:

C Feedback: Adverse effects of vincristine include ataxia, cranial nerve manifestations, neuritic pain, muscle wasting, constipation, leukopenia, weight loss, loss of hair, and death. As a result, the risk for injury due to weakness and falls is a significant concept. Risk for bleeding and severe fluid retention is unlikely with this drug. The risk of infection is related to bone marrow suppression, not a possible nosocomial infection. The patient is more at risk for a nosocomial infection because of the bone marrow suppression.

30.

A patient newly diagnosed with chronic myelocytic leukemia (`) has been prescribed treatment with imatinib. The patient asks the nurse how imatinib works. What would be the nurse’s best response?

imatinib alkylates cellular DNA.

imatinib inhibits folic acid reductase, leading to inhibition of DNA synthesis and inhibition of cellular replication.

imatinib binds to DNA and inhibits DNA synthesis in susceptible cells, causing cell death.

imatinib inhibits the enzyme created by the Philadelphia chromosome abnormality in CML.

Ans:

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Feedback: Imatinib is a tyrosine kinase inhibitor that selectively inhibits the Bcr-Abl tyrosine kinase created by the Philadelphia chromosome abnormality in CML and some tumor cells present in gastrointestinal stromal tumor (GIST); blocking this enzyme inhibits proliferation and induces cell division. Alkylating agents alkylate cellular DNA; antimetabolites inhibit folic acid reductase, leading to inhibition of deoxyribonucleic acid (DNA) synthesis and inhibition of cellular replication; and antineoplastic antibiotics bind to DNA and inhibit DNA synthesis in susceptible cells, causing cell death. 31.

The patient, diagnosed with chronic myelocytic leukemia (CML), has not been responding to chemotherapy and the provider changes the patient to imatinib. The patient asks the nurse, What adverse effects am I going to have to deal with from this drug? What is the nurse’s best response?

Adverse effects from this drug are more serious but this drug is stronger and more effective.

Adverse effects are similar to other drugs including bone marrow suppression, nausea, and hair loss.

Adverse effects are much less likely or severe including GI upset, headache, and muscle pain.

Adverse effects vary from patient to patient and depend on your overall health as to what will occur.

Ans:

C Feedback: Patients who have CML and who have been switched to imatinib after traditional chemotherapy have been amazed at how good they feel and how much they have recovered from the numerous adverse effects of traditional chemotherapy. Administer with a meal and a full glass of water, arrange for small frequent meals if GI upset is a problem, provide analgesics for headache and muscle pain, monitor CBC, and examine for edema. Options A, B, and D are not correct.

32.

The nursing instructor teaches the students that antineoplastic drugs are often carcinogens. The students are surprised to hear this and ask why. The instructor’s best response includes what information?

The drugs kill cells resulting in a need for more cellular growth with risk of a mutant cell.

These drugs do so much damage to so many human cells that the patient is debilitated.

If the patient remains cancer free for 2 years and then cancer is found, it is caused by the drugs.

Palliative therapy promotes the growth of new cancer cells because it is not strong enough.

Ans:

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Feedback: Many neoplastic drugs result in the adverse effect of cancer because cell death caused by the agents increase the need for cellular growth, placing the patient at increased risk for a mutant cell to develop. Patients often recover completely from the adverse effects after chemotherapy is completed and do not remain debilitated. Most cancer patients are not considered to be cured until they have remained cancer free for 5 years because no cells have been identified that can remain dormant for 5 years. Palliative therapy does not promote growth of new cancer cells. 33.

What classification of antineoplastic medication would the nurse administer that acts by inhibiting microtubular reorganization?

Alkylating agents

Hormone modulators

Mitotic inhibitors

Antimetabolites

Ans:

C Feedback: Mitotic inhibitors such as docetaxel and paclitaxel inhibit microtubular reorganization. Alkylating agents interfere with ribonucleic acid (RNA), deoxyribonucleic acid (DNA), or other cellular proteins. Hormone modulators react with specific receptor sites to block cell growth and activity. The antimetabolite cladribine and miscellaneous agent hydroxyurea block DNA synthesis.

34.

The nurse transfers from the adult oncology unit to the pediatric oncology unit. What will the nurse need to add to the patient’s plan of care that was not a part of the adult patient’s care plan?

Social, emotional, and intellectual stimulation

Concerns related to combination drug therapy

Double checking dosage calculations and appropriateness of drug dosage

Monitor for hydration and nutritional status

Ans:

A Feedback: Children need to play and learn so meeting the child’s social, emotional, and intellectual needs is a part of the care plan that was not as significant with adults. Administration of combination drugs, Double-

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checking dosage calculations and appropriateness of drug dosage, and Monitoring for hydration and nutritional status are all components of adult care as well as pediatric care. 35.

The nurse is conducting a class for nurses hired to work on the oncology unit. What statement, if made by the nurse, would be correct regarding chemotherapy for older adults? (Select all that apply.)

Older adults may be more susceptible to the central nervous system (CNS) and GI effects of these drugs.

Older patients are at risk for dehydration and diminished nutritional status.

Safety precautions should be instituted as soon as any drug is initiated.

Dosage will need to be adjusted based on the age of the older adult.

Older adults are already somewhat immunosuppressed, so further suppression is a concern.

Ans:

A, B, E Feedback: Older adults may be more susceptible to the CNS and GI effects of some of these drugs. Older patients should be monitored for hydration and nutritional status regularly. Safety precautions should be instituted if CNS effects occur but are not needed for every drug as soon as it is initiated. Dosage is adjusted based on hepatic and renal function, not the patient’s age. Protecting these patients from exposure to infection and injury is a very important aspect of their nursing care because older patients are naturally somewhat immunosuppressed because of age.

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Chapter 15 - Introduction to the Immune Response and Inflammation

The body’s first-line barrier defense is considered to be what?

Mast cells

Mucous membranes

Skin

T cells

Ans:

C Feedback: The skin is the first line of barrier defense. It acts as a physical barrier to protect the internal tissues and organs of the body. Mast cells are part of cellular defense. They are found in the respiratory and GI tracts and are fixed basophils that do not circulate. Mucous membranes are a barrier defense that line the areas of the body that are exposed to external influences but do not have the benefit of skin protection. T cells are part of the immune response and provide cell-mediated immunity. Activation of a T cell by a nonself-cell results in responses that destroy foreign cells.

The nurse recognizes what patient has lost a barrier defense increasing his risk for infection?

A 68-year-old man diagnosed with prostate cancer

A 24-year-old man diagnosed with partial thickness burns

A 13-year-old boy diagnosed with chickenpox

A 72-year-old man diagnosed with bacterial pneumonia

Ans:

B Feedback: A burn patient loses the protective barrier of the skin and is at risk for infection. In a partial thickness burn, the glands of the skin secrete chemicals that destroy many pathogens and also the normal flora that live on the skin. A cancer patient has decreased cellular defenses. The patient with chickenpox and the patient with pneumonia both have a diminished immune defense along with the prostate cancer patient but still are at less risk for infection than the burn patient.

After reviewing the results of a complete blood count on a patient who is diagnosed with an acute

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infection, what will the nurse expect to see elevated? A)

Basophil count

Eosinophil count

Hematocrit

Neutrophil count

Ans:

D Feedback: During an acute infection, the neutrophils are rapidly produced in response to the interleukins released by active white blood cells. They move to the site of insult to attack the foreign substance. Eosinophils are often increased in an allergic response. Basophils would only increase with generalized bone marrow stimulation. The hematocrit level is increased in polycythemia.

A new mother calls the clinic and tells the nurse her toddler has a temperature of 102ºF. How does the nurse explain why the mother should not be alarmed?

A fever is the body’s way of fighting an infection and supporting the body’s immune system.

Neutrophils release pyrogen, a fever-causing substance, which helps act as a catalyst for the body’s inflammatory and immune responses.

Leukotrienes activated by arachidonic acid attract neutrophils to start the process of fighting inflammation.

Inflammation causes the activation of a chemical called Hageman factor that initiates a process to bring more blood to the injured area and allows white blood cells to escape into the tissues.

Ans:

A Feedback: The best response by the nurse would be that a fever actually increases the efficiency of the immune and inflammatory responses, helping the body to fight the infection. While the other three statements are correct, they are more technical and include terminology that a new mother may not understand or even care about. If the appropriate response does not suffice and the mother still has questions, the nurse would then go into more detail and use the rationale from the other options to explain in greater detail.

A patient presents to the emergency department with an infected wound on his left forearm. The nurse explains the inflammatory response caused by the injury will occur in what sequence?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Heat, pain, redness, swelling

Swelling, pain, redness, heat

Redness, swelling, heat, pain

Pain, redness, swelling, heat

Ans:

239

Feedback: The inflammatory response will begin with redness in the direct line of the infected wound. Next, swelling will occur because of the fluid that leaks into the tissue as a result of the change in capillary permeability. The heat can be detected due to the increased blood flow to the area. Pain will be felt due to the activation of fibers by histamine and the kinin system as well as stretching of the tissue caused by the edema. 6.

The patient with AIDS asks the nurse why his cytotoxic T cells are so important. What is the nurse’s best response to explain the actions of cytotoxic T cells?

Cells that are programmed to identify specific proteins or antigens

Cells that can either destroy a foreign cell or mark it for aggressive destruction

Cells that respond to chemical indicators of immune activity and stimulate other lymphocytes to be more aggressive and responsive

Cells that respond to rising levels of chemicals associated with an immune response to suppress or slow the reaction

Ans:

B Feedback: Effector or cytotoxic T cells either destroy a foreign cell or make it available for aggressive destruction. Cells that identify specific proteins or antigens are B cells. Cells that respond to chemical indicators to stimulate other cells are helper T cells. Cells that suppress or slow the reaction are suppressor T cells.

A patient has a minor laceration on the left arm. What does the nurse know that will cause a patient to experience muscle and joint aches, a low-grade fever, and sleepiness when an inflammatory reaction is initiated? Bacterial toxins

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Interferon activity

Leukotriene activity

Phagocytosis

Ans:

240

Feedback: The leukotrienes (autocoids activated through the kinin system) affect the brain to induce slow-wave sleep, believed to be an important energy conservation measure for fighting the invader. They also cause myalgia and arthralgia (muscle and joint pain)common signs and symptoms of various inflammatory diseases, which also cause reduced activity and save energy. Interferons are released in response to viral infection. Phagocytosis destroys engulfed foreign material in the body. Bacterial toxins cause local reactions unless the infection is intense and the bacteria enter the bloodstream. 8.

What body defense needs to be reduced in the patient following organ transplantation?

Major histocompatibility complex

Barrier defenses

Lymphoid tissues

Eosinophils

Ans:

A Feedback: The major histocompatability complex is the genetic identification code carried on chromosomes and produces several proteins called histocompatibility antigens located on the cell membrane that allow the body to recognize cells that are self-cells. Cells without these proteins, such as those in a transplanted organ, are identified as foreign and are targeted for destruction so this defense must be minimized to prevent damage to the transplanted organ. Barrier defenses prevent entry of pathogens into the body. Lymphoid tissue creates cellular components of the mononuclear phagocyte system, differentiates T cells, and regulates actions of the immune system. Eosinophils respond to allergic responses. Barrier defenses, lymphoid tissue, and eosinophils are not involved in the transplant rejection process.

The nurse is teaching a class on the inflammatory response for other nurses and discusses the role of factor XII or the Hageman factor. What substance does Hageman’s factor activate to cause kininogen to be converted to bradykinin?

Arachidonic acid

Prostaglandins

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Leukotrienes

Kallikrein

Ans:

241

Feedback: Hageman’s factor activates kallikrein, a substance found in the local tissues, which causes the precursor substance kininogen to be converted to bradykinin and other kinins. Bradykinin causes the release of arachidonic acid from the cell membrane. Arachidonic acid causes the release of other substances called autocoids, including prostaglandins, leukotrienes, and thromboxanes 10.

A patient who has received a heart transplant has been given an order for drugs that block T cell activity. What is the rationale behind this order?

To manufacture antibodies to the foreign proteins

To stimulate wound healing

To combine with a complement to cause a massive inflammatory reaction

To prevent an inflammatory reaction against the transplanted heart

Ans:

D Feedback: Effector or cytotoxic T cells are aggressive against nonself-cells, releasing cytokines that can either directly destroy a foreign cell or mark it for aggressive destruction. If the transplanted organ is attacked by cytokines, it will be destroyed, referred to as organ rejection. As a result, inhibition of these killer T cells is essential to continued organ function in the transplanted organ. Blocking T cells would not manufacture antibodies, stimulate wound healing, or trigger a massive inflammatory response.

11.

The nurse anticipates what generalized response to the patient’s cellular injury?

Decreased pH

Increased protein catabolism

Inhibition of cell growth

Inflammation

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242

D Feedback: The inflammatory response is the local reaction of the body to invasion or injury. Any insult to the body that injures cells or tissues sets of a series of events and chemical reactions known as the inflammatory response. Protein catabolism is the breakdown of protein into particles small enough to be carried into the cell and is an incorrect choice. Cellular injury does not inhibit cell growth or lower pH.

12.

The nurse takes a class to better understand the immune and inflammatory responses and learns what cells help to slow or suppress the immune response?

Cytotoxic T cells

Helper T cells

Suppressor T cells

B cells

Ans:

C Feedback: Suppressor T cells respond to rising levels of chemicals associated with an immune response to suppress or slow the reaction. Helper T cells respond to the chemical indicators of immune activity and stimulate other lymphocytes, including B cells, to be more aggressive. Cytotoxic T cells are aggressive against nonself-cells.

13.

The nurse plans care for patients with the knowledge that loss of body defenses can increase the patient’s risk for infection. What barrier defenses need to remain intact to prevent infection? (Select all that apply.)

Skin

Mucous membranes

Gastric acid

Leukocytes

T cells

Ans:

A, B, C

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Feedback: The skin is the first line of barrier defense, creating a physical barrier to prevent pathogens from entering the internal tissues. Mucous membranes are another barrier defense protecting the area without skin protection (e.g., the respiratory tract, gastrointestinal tract, genitourinary tract). Gastric acids destroy many pathogens that are ingested or swallowed, preventing them from entering the bloodstream or internal organs. Leukocytes and T cells are cellular defenses and not barrier defenses. 14.

What is the nurse referring to when discussing B-cell immunity when the B cells are programmed to identify specific proteins or antigens?

T-cell immunity

Autoimmunity

Passive immunity

Humoral immunity

Ans:

D Feedback: B cells are programmed to identify specific proteins, or antigens. They provide what is called humoral immunity. Autoimmunity occurs when the body attacks its own self-cells. Passive immunity is the transfer of antibodies from one person to another. Active immunity is immunity produced by the body in response to an organism.

15.

When antibodies and antigens react, they create an antigenantibody complex. This structure reveals a new receptor site that activates a series of plasma proteins called what?

Complement

Neutralization of viral toxins

Opsonization

Histamine

Ans:

A Feedback: When the antigens and antibodies react, they form an antigenantibody complex. This new structure reveals a new receptor site on the antibody that activates a series of plasma proteins in the body called complement proteins. Options B, C, and D are distracters for this question and are not involved in this

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process. 16.

The pharmacology instructor is discussing activated complement with the nursing students. What would the instructor tell the students that activated complement stimulates?

Opsonization

Chemotaxis

Agglutination

Phagocytosis

Ans:

B Feedback: Activated complement stimulates chemotaxis (movement of monocytes, neutrophils, basophils, and eosinophils toward the antigen) and the release of hydrolytic enzymes; actions that result in the destruction or inactivation of the invading antigen. Opsonization is the coating of the antigen so that it is more readily recognized by phagocytic cells. Agglutination is the clumping of cells. Phagocytosis is the destruction of pathogens or cells.

17.

The nursing instructor explains that future exposure to an antigen previously encountered elicits a much faster response as the result of what cells forming memory cells?

T cells

Lymphocytes

Monocytes

B cells

Ans:

D Feedback: After being activated, the B cells form memory cells that will produce antibodies for immediate release in the future if the antigen is encountered again. Although lymphocytes, monocytes, and T cells will then join in the battle to destroy the antigen, they do not produce memory cells as the B cells do.

18.

When explaining the immune response the nursing instructor explains the role of neutrophils as doing what?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Phagocytosis

Producing memory cells

Marking cells for destruction

Initiating an immune response

Ans:

245

Feedback: Neutrophils engulf and digest foreign material through the process of phagocytosis. B cells produce memory cells. Cytoxic T cells mark cells for destruction. Basophils initiate the immune response. 19.

What specific drug group has both antiviral and antiproliferative actions?

Interferons

Interleukins

Monoclonal antibodies

Hematopoietic growth factors

Ans:

A Feedback: Interferons are chemicals that are secreted by cells that have been invaded by viruses and possibly by other stimuli. The interferons prevent viral replication and also suppress malignant cell replication and tumor growth. Therefore, options B, C, and D are incorrect.

20.

Tumor necrosis factors (TNF) participate in the inflammatory response of the human body. What do they cause in the inflammatory response?

Enhancing macrophage activity

Tumor regression

Binding of target cells

Delaying or stopping macrophage migration

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246

B Feedback: TNF, a cytokine, is a chemical released by macrophages that inhibits tumor growth and can cause tumor regression. It also works with other chemicals to make the inflammatory and immune responses more aggressive and efficient. Therefore, options A, C, and D are incorrect.

21.

Stressors are a variety of factors that have long been thought to have an important connection with the immune response. What could the nurse classify as a stressor? (Select all that apply.)

Trauma

Foreign cells

Viruses

Extremes of environmental conditions

Self-cells

Ans:

A, B, C, D Feedback: The term stressors can include bacteria, viruses, other foreign pathogens or nonself-cells, trauma, and exposure to extremes of environmental conditions. Self-cells are not considered a stressor on the body.

22.

The nurse is caring for a patient with newly diagnosed multiple sclerosis (MS). The patient asks why MS is called an autoimmune disease. What is the nurse’s best response?

The body attacks its own cells because it responds to specific self-antigens to produce antibodies.

A result of response to a cell that was invaded by bacteria, leading to antibody production to similar cells.

Production of autoantibodies is a normal process that goes on all the time, but immunosuppression limits B-cell response.

People with multiple sclerosis have a genetic predisposition to destroy autoantibodies.

Ans:

A Feedback:

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Autoimmune disease occurs when the body responds to specific self-antigens to produce antibodies or cell-mediated immune responses against its own cells. The actual cause of autoimmune disease is not known, but theories speculate that (1) it could be a result of response to a cell that was invaded by a virus, leading to antibody production to similar cells; (2) production of autoantibodies is a normal process that goes continuously, but in a state of immunosuppression, the suppressor T cells do not suppress autoantibody production; or (3) a genetic predisposition to develop autoantibodies is present. 23.

The nurse is caring for a patient with an acute infection that resulted in an immune reaction. What symptoms exhibited by the patient would the nurse recognize as being caused by interleukins? (Select all that apply.)

Fever

Joint pain

Muscle pain

Hyperactivity

Insomnia

Ans:

A, B, C Feedback: Interleukins cause many of the symptoms associated with flu-like symptoms, all things that help the body to conserve energy including fever, joint pain (arthralgia), muscle pain (myalgia), and slow-wave sleep induction. Hyperactivity and insomnia are incorrect options.

24.

What immunoglobulin (Ig) is present in small amounts and is thought to be related to allergic responses?

IgM

IgG

IgE

IgA

Ans:

C Feedback: Five different types of immunoglobulins have been identified: IgE is present in small amounts and seems to be related to allergic responses and to the activation of mast cells. The first immunoglobulin

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released is M (IgM). It contains the antibodies produced at the first exposure to the antigen. IgG, another form of immunoglobulin, contains antibodies made by the memory cells that circulate and enter the tissue; most immunoglobulin found in the serum is IgG. IgA is found in tears, saliva, sweat, mucus, and bile. It is secreted by plasma cells in the GI and respiratory tracts and in epithelial cells. These antibodies react with specific pathogens that are encountered in exposed areas of the body. 25.

Our bodies contain various immunoglobulins (Ig). Which of these immunoglobulins is found in sweat, tears, mucus, and bile?

IgG

IgA

IgM

IgE

Ans:

B Feedback: Five different types of immunoglobulins have been identified: IgA is found in tears, saliva, sweat, mucus, and bile. It is secreted by plasma cells in the GI and respiratory tracts and in epithelial cells. IgE is present in small amounts and seems to be related to allergic responses and to the activation of mast cells. The first immunoglobulin released is M (IgM); it contains the antibodies produced at the first exposure to the antigen. IgG, another form of immunoglobulin, contains antibodies made by the memory cells that circulate and enter the tissue; most of the immunoglobulin found in the serum is IgG. These antibodies react with specific pathogens that are encountered in exposed areas of the body.

26.

A 44-year-old man has come to the clinic with an exacerbated asthma attack, asthma exacerbation. He tells the nurse that his father and brother also suffer from asthma, as does his 15-year-old son. The nurse explains that there is most likely an allergic component based on a genetic predisposition. The specific allergen initiated by immunological mechanisms is usually mediated by what?

Immunoglobulin A

Immunoglobulin M

Immunoglobulin G

Immunoglobulin E

Ans:

D Feedback: Allergic reactions characterized by the action of IgE antibodies and a genetic predisposition to allergic

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reactions are found in diseases like asthma. IgG is the most common immunoglobulin and is found in intravascular and intercellular compartments. IgA and IgM are found in mucous secretions. 27.

Injury to a cell membrane causes the local release of histamine. What does histamine do?

Stimulates pain perception

Causes vasoconstriction

Decreases capillary permeability

Inhibits phagocytosis

Ans:

A Feedback: Pain comes from the activation of pain fibers by histamine and the kinin system, occurring any time a cell is injured. Histamine also causes vasodilation, increases capillary permeability, and facilitates phagocytosis.

28.

An adolescent comes to the free clinic with complaints of allergic rhinitis. The adolescent asks the nurse what makes his nose get so stuffy. What is the nurse’s best response?

The inside of the nose swells because of the dilation of the blood vessels.

Allergies make the sinuses drain into the nasal passages and it stuffs them up.

The inside of the nose swells closed because of drainage from the sinuses.

Leukotrienes are attacking the mucous membranes of your nose and causing irritation.

Ans:

A Feedback: Histamine is the major mediator of allergic reactions in the nasal mucosa. Tissue edema results from vasodilation and increased capillary permeability. Tissue edema is not caused by drainage from the sinuses or from leukotrienes.

29.

In a discussion about cancer, a student asks why the body does not phagocytize a tumor. What would be the instructor’s best response? Sometimes tumor cells trick the T cells into allowing them to survive.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Some tumor cells do not develop an antigenantibody reaction.

Some tumor cells develop a strong mast cell reaction.

Tumor cells are too small to be seen by the immune system.

Ans:

250

Feedback: Neoplasms occur when mutant cells escape normal surveillance of the immune system and begin to grow and multiply. Aging reduces efficiency of the immune system; location of mutant cells can make it difficult for lymphocytes to get to them or that mass can grow so quickly that the tumor becomes too large for the immune system to deal with. Tumors can produce antibodies that cover antigen receptor sites on the tumor and prevent recognition by cytotoxic T cells, or a weak antigenic tumor may elicit a mild response from the immune system and tricks the T cells into allowing it to survive. 30.

What systems are activated by Hagemans factor? (Select all that apply.)

Kinin system

Histamine release system

Clotting cascade

Plasminogen system

Chemotaxis system

Ans:

A, C, D Feedback: Hagemans factor is responsible for activating at least three systems in the body: the kinin system; the clotting cascade, which initiates blood clotting; and the plasminogen system, which initiates the dissolution of blood clots. Histamine release is stimulated by cell damage. Arachidonic acid activates some leukotrienes that have a property called chemotaxis, which is the ability to attract neutrophils and to stimulate them and other macrophages to be very aggressive.

31.

The nurse assesses the patient’s postoperative wound and determines that the wound is inflamed, most likely because of an infection, when noting what classic symptoms? (Select all that apply.)

Heat around the site of the wound

Redness around the site of the wound

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Increase in reports of pain

Edema at the site of the wound

Serosanguineous drainage from the wound

Ans:

A, B, C, D

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Feedback: Activation of the inflammatory response produces a characteristic clinical picture. Heat occurs because of the increased blood flow to the area. Swelling occurs because of the fluid that leaks into the tissues as a result of the change in capillary permeability. Redness is related to the increase in blood flow caused by the vasodilation. Pain comes from the activation of pain fibers by histamine and the kinin system. 32.

When assessing the patient with tissue injury, the nurse correlates signs and symptoms to the responses occurring within the patient’s body. Put the inflammatory responses in the order they will occur.

Activation of Hageman’s factor

Kininogen activates release of bradykinin

Release of leukotrienes and prostaglandins

Prekallikrein becomes kallikrein

Release of arachidonic acid

Ans:

A, B, C, D, E Feedback: Tissue injury is followed by exposure of plasma to the injured cell, which results in activation of Hageman’s factor. This stimulates prekallikrein to become active kallikrein. Kininogen activates bradykinin. Arachidonic acid is released, which activates release of leukotrienes and prostaglandins.

33.

The patient tells the nurse she was reading about interferons on the Internet but still does not exactly understand what they do. What actions would the nurse describe as being performed by interferons? (Select all that apply.)

Prevent viral replication

Suppress malignant cell replication

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Suppress tumor growth

Stimulate T and B cells to initiate an immune response

Stimulate the body to produce more T cells

Ans:

A, B, C

252

Feedback: Interferons are chemicals that are secreted by cells that have been invaded by viruses and possibly by other stimuli. The interferons prevent viral replication and also suppress malignant cell replication and tumor growth. Interleukins stimulate T and B cells to initiate an immune response and to produce more T cells. 34.

The nurse is caring for a patient waiting for a heart transplant. The patient’s spouse asks the nurse, Why don’t they just choose any heart until the right heart can be found? What is the nurse’s best response?

The more closely the new heart matches the patient’s tissue, the less aggressive the immune reaction will be.

When the body responds to specific self-antigens to produce antibodies against its own cells, a severe immune response results.

Graft-versus-host disease would result making the patient very ill.

The patient would need to have suppressor T cells infused daily to maintain the heart.

Ans:

A Feedback: Transplantation of foreign tissue (e.g., moving a heart from a donor to a sick patient) results in an immune reaction. Matching a donor’s human leukocyte antigen markers is important as closely as possible to those of the recipient because histocompatability is essential. The more closely the transplanted heart matches the recipient, the less aggressive the immune response will be to the donated tissue. Graft-versus-host disease occurs only in stem cell or bone marrow donations, not organ transplantation. Suppressor T cells cannot be transfused like blood because they must be produced by the body to function appropriately.

35.

The patient, recently diagnosed with HIV, is waiting for results of his lab work to determine his T cell count and says to the nurse, What exactly is a T cell? What is the nurse’s best response?

T cells are monocytes, which are a type of white blood cell that helps to fight off infections and other foreign bodies that enter the body.

T cells are neutrophils, which are a type of white blood cell that helps to fight off infections and

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other foreign bodies that enter the body. C)

T cells are lymphocytes, which are a type of white blood cell that helps to fight off infections and other foreign bodies that enter the body.

T cells are basophils, which are a type of white blood cell that helps to fight off infections and other foreign bodies that enter the body.

Ans:

C Feedback: T cells are lymphocytes, a type of white blood cells with large, varied nuclei that can be either T cells or B cells. T cells are not neutrophils, which are capable of moving outside the bloodstream and phagocytizing foreign material. Basophils are myelocytic leukocytes containing chemical substances important for initiating and maintaining an immune or inflammatory response. Monocytes are macrophages capable of phagocytizing an antigen and help to remove foreign material from the body.

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Chapter 16 - Antiinflammatory, Antiarthritis, and Related Agents

A nurse has admitted a 10-year-old child to the short-stay unit. The child has complained of chronic headaches and his or her mother reports that he or she gives him or her acetaminophen (Tylenol) at least twice a day. What will the nurse evaluate?

Renal function

Hepatic function

Respiratory function

Cardiac function

Ans:

B Feedback: The nurse should evaluate the patient’s hepatic function. Severe hepatotoxicity can occur from overuse of acetaminophen. Significant interferences do not occur in the kidney, heart, or lung with acetaminophen.

The nurse is discussing ethnic differences in response to medication with your nursing students. What group of people would the nurse tell the students may have a decreased sensitivity to pain-relieving effects of anti-inflammatory drugs and should be educated concerning signs and symptoms of gastrointestinal bleeding from use of these drugs?

African Americans

White Americans

Hispanics

Asians

Ans:

A Feedback: African Americans have a documented decreased sensitivity to pain-relieving effects of many antiinflammatory drugs. They also have an increased risk of developing GI adverse effects to these drugs. In general, White Americans, Hispanics, and Asians are at lower risk for these problems.

A patient, newly diagnosed with ulcerative colitis, has been admitted to the short-stay unit. What

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salicylates does the nurse anticipate will be ordered for this patient? A)

Balsalazide (Colazal)

Sodium thiosalicylate (generic)

Choline magnesium trisalicylate (Tricosal)

Salsalate (Argesic)

Ans:

A Feedback: Balsalazide is delivered intact to the colon, where it delivers a local anti-inflammatory effect that is most effective for patients with ulcerative colitis. Choline salicylate and salsalate are used to treat pain, fever, and inflammation. Sodium thiosalicylate is used mainly for episodes of acute gout, for muscular pain, and to treat rheumatic fever.

The nurse is caring for a 66-pound child with orders for choline magnesium trisalicylate (Tricosal). The orders read 50 mg/kg/d PO in two divided doses. How many milligram will the patient receive per dose?

250 mg

500 mg

750 mg

1,000 mg

Ans:

C Feedback: First, the nurse must determine the child’s weight in kilogram. One kg is equal to 2.2 pounds. Divide 2.2 into 66 to equal 30 kg. Multiply 50 mg times 30 kg to equal 1,500 mg. Divide 1,500 by 2 for the divided doses, which will equal 750 mg per dose.

A nurse is caring for a patient with severe rheumatoid arthritis who takes anti-inflammatory agents on a regular basis. What medication should the nurse question if ordered by the physician to be taken in addition to the anti-inflammatory agent? Oral antidiabetic agent

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Calcium channel blocker

Beta-blocker

Antibiotic

Ans:

256

Feedback: Nonsteroidal anti-inflammatory drugs have the potential to decrease antihypertensive effects from beta blockers if these drugs are taken at the same time. Patients who receive these combinations should be monitored closely and appropriate dosage adjustments made if needed. Drug interactions do not usually occur with oral antidiabetic agents, calcium channel blocking medications, or antibiotics. 6.

A nurse is assessing a patient who has been taking nonsteroidal anti-inflammatory drugs (NSAID). What statement by the patient indicates to the nurse that the patient has a good understanding of the use of this therapy?

I drink a glass of wine just about every night.

I asked my doctor to check for blood in my stool regularly.

I do not like to swallow tablets so I crush them.

I drink as little water as possible when I take my medication.

Ans:

B Feedback: Taking certain anti-inflammatory drugs can irritate the gastric mucosa and increase the risk of bleeding; therefore, by asking his or her doctor to check his or her stool for bleeding, the nurse knows that the patient is aware of this. Alcohol and crushing the tablets can interfere with anti-inflammatory metabolism. A full glass of water should be taken with this medication to increase absorption.

A salicylate has been prescribed for a 15-year-old patient who has been diagnosed with arthritis. The mother is concerned about giving her child a salicylate. What salicylates could the nurse tell this mother are recommended for use in children?

Salsalate (Argesic)

Olsalazine (Dipentum)

Sodium thiosalicylate (generic)

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Choline magnesium trisalicylate (Tricosal)

Ans:

257

Feedback: Aspirin and choline magnesium trisalicylate are the only salicylates recommended for use in children. They should not be used when any risk of Reye’s syndrome exists. Salsalate (Argesic), olsalazine (Dipentum), and sodium thiosalicylate (generic) have not been approved for pediatric use and do not provide pediatric dosing guidelines as a result. 8.

A mother has brought her 6-year-old child to the clinic. The child has a fever of 102.8ºF and is diagnosed with the flu. What medication will the nurse suggest for this child?

Etanercept (Enbrel)

Penicillamine (Depen)

Acetaminophen (Tylenol)

Aspirin (Bayer)

Ans:

C Feedback: Acetaminophen would be the suggested medication. It is prescribed for relief of pain and fever for influenza in children. Aspirin would be contraindicated because it increases the risk for Reye’s syndrome. Etanercept and penicillamine are given for severe rheumatoid arthritis therapy.

A nurse is presenting an educational event for a group of new parents. One topic that the nurse addresses is the overuse of acetaminophen, which can cause liver toxicity. What would the nurse tell the parents it is important to do?

Do not give acetaminophen (Tylenol) unless you receive a doctor’s order.

Check the label of over-the-counter (OTC) medications carefully to watch for inclusions of acetaminophen in the ingredients.

Monitor their child’s temperature carefully and regulate the Tylenol dose based on the fever.

Mix OTC children’s medications to get the best coverage for their child’s symptoms.

Ans:

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Feedback: Inadvertent overdose with acetaminophen frequently occurs because of the combining of OTC drugs that contain the same ingredients. Parents should be taught to carefully check the labels of OTC products and follow the dosage guidelines. A prescription is not required for acetaminophen. Dosage guidelines are the best guide to follow to prevent overdose. 10.

A mother asks the nurse how acetaminophen works. What statement best describes the therapeutic action of acetaminophen?

Acetaminophen (Tylenol) works by blocking the increase of interleukin-1.

Acetaminophen reacts with free-floating tumor necrosis (TNF) factor released by active leukocytes.

Acetaminophen acts directly on the hypothalamus to cause vasodilation and sweating.

Acetaminophen is taken up by macrophages, thus inhibiting phagocytosis and release of lysosomal enzymes.

Ans:

C Feedback: Acetaminophen acts on the hypothalamus to cause vasodilation and sweating to reduce fever. The mechanism of action as an analgesic is not understood. Anakinra (Kineret) blocks the increased interleukin-1, which is responsible for the degradation of cartilage in rheumatoid arthritis. Etanercept (Enbrel) reacts with free-floating TNF released by active leukocytes in autoimmune inflammatory disease to prevent the damage caused by TNF. Gold compounds are taken up by macrophages, which, in turn, inhibits phagocytosis and releases lysosomal enzymes, which causes damage associated with inflammation.

11.

Antipyretic drugs (e.g., aspirin, ibuprofen, acetaminophen) often are used to alleviate the discomforts of fever and to protect vulnerable organs, such as the brain, from extreme elevations in body temperature. However, the use of aspirin in children is limited due to the possibility of what disease?

Munchausen’s syndrome

Guillain-Barré syndrome

Angelman’s syndrome

Reye’s syndrome

Ans:

D Feedback:

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Salicylates like aspirin are contraindicated for the treatment of childhood fevers because of the risk of Reye’s syndrome in children and teenagers. Munchausen’s syndrome is an unusual condition characterized by habitual pleas for treatment and hospitalization for a symptomatic but imaginary acute illness. Guillain-Barré syndrome is an idiopathic, peripheral polyneuritis that occurs 1 to 3 weeks after a mild episode of fever associated with a viral infection or with immunization. Angelman’s syndrome is an autosomal recessive syndrome characterized by jerky puppet-like movements, frequent laughter, mental and motor retardation, a peculiar open-mouthed facial expression, and seizures. Salicylates like aspirin are not contraindicated for patients with Munchausen’s syndrome, Guillain-Barré syndrome, or Angelman’s syndrome. 12.

A patient has been diagnosed with severe rheumatoid arthritis and hylan G-F 20 has been ordered. How is this drug given?

Injected into the joint

Orally

Sub Q

Ans:

A Feedback: Hyaluronidase derivatives (e.g., hylan G-F 20, sodium hyaluronate) have elastic and viscous properties. These drugs are injected directly into the joints of patients with severe rheumatoid arthritis of the knee. They seem to cushion and lubricate the joint and relieve the pain associated with degenerative arthritis. They are given weekly for 3 to 5 weeks and are not given by any other route.

13.

A nurse is caring for a patient in the early stage of rheumatoid arthritis. The nurse would expect what medication classification to be used in the treatment of this patient?

Antimalarial agents

Nonsteroidal anti-inflammatory drugs (NSAIDs)

Xanthine oxidase inhibitors

Uricosuric agents

Ans:

B Feedback:

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NSAIDs are indicated for relief of the signs and symptoms of rheumatoid arthritis and osteoarthritis, for relief of mild to moderate pain, for treatment of primary dysmenorrhea, and for fever reduction. Antimalarial agents are used in the treatment of systemic lupus erythematosus. Xanthine oxidase inhibitors and uricosuric agents are used in the treatment of gout. 14.

The nurse is caring for a patient who receives anakinra (Kineret) for arthritis. By what route will the nurse administer this medication?

Into the affected joint directly

Oral

Intramuscular

Subcutaneous

Ans:

D Feedback: Anakinra is administered subcutaneously every day and is often used in combination with other antiarthritis drugs. No other route is appropriate.

15.

The nurse is preparing to administer a nonsteroidal anti-inflammatory drug (NSAID) to an older patient. What NSAID is associated with increased toxicity and should be avoided if possible?

Naproxen (Aleve)

Ibuprofen (Motrin)

Indomethacin (Indocin)

Etodolac (Lodine)

Ans:

A Feedback: Geriatric warnings have been associated with naproxen, ketorolac, and ketoprofen because of reports of increased toxicity when they are used by older patients. These NSAIDs should be avoided in this population if possible. No such warnings exist for ibuprofen, indomethacin, or etodolac.

16.

What medication used to treat rheumatic arthritis not only has anti-inflammatory effects but is also used in premature infants to close a patent ductus arteriosus?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Penicillamine

Indomethacin

Antimalarials

Prednisone

Ans:

261

Feedback: Indomethacin given IV is used in premature infants to close a patent ductus arteriosus and avoid a surgical procedure. Penicillamine, antimalarials, and prednisone are not used for this purpose. 17.

When the nurse learns that the patient with rheumatic arthritis is complaining of stomatitis, the nurse should further assess the patient for the adverse effects of what medication?

Corticosteroids

Gold-containing compounds

Antimalarials

Salicylate therapy

Ans:

B Feedback: Various adverse effects are common with the use of gold salts and are probably related to their deposition in the tissues and effects at that local level: stomatitis, glossitis, gingivitis, pharyngitis, laryngitis, colitis, diarrhea, and other GI inflammation; gold-related bronchitis and interstitial pneumonitis; bone marrow depression; vaginitis and nephrotic syndrome; dermatitis, pruritus, and exfoliative dermatitis; and allergic reactions ranging from flushing, fainting, and dizziness to anaphylactic shock. The disease-modifying antirheumatic drug (DMARD) category of antimalarials may cause visual changes, GI upset, rash, headaches, photosensitivity, and bleaching of hair. Tinnitus is associated with salicylate therapy. Hirsutism is associated with corticosteroid therapy.

18.

A patient with rheumatoid arthritis is taking gold salts. What drugs should the nurse teach this patient that are contraindicated when taking gold salts? (Select all that apply.)

Antimalarials

Cytotoxic drugs

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Salicylates

Penicillamine

Anticoagulants

Ans:

A, B, D

262

Feedback: These drugs should not be combined with penicillamine, antimalarials, cytotoxic drugs, or immunosuppressive agents other than low-dose corticosteroids because of the potential for severe toxicity. No contraindication exists for therapy involving gold salts and salicylates or anticoagulants. 19.

The nurse teaches a patient with rheumatic disease who is being prescribed salicylate therapy to monitor himself or herself for what?

Tinnitus

Visual changes

Stomatitis

Hirsutism

Ans:

A Feedback: Tinnitus is associated with salicylates. The disease-modifying antirheumatic drug (DMARD) category of antimalarials may cause visual changes, GI upset, skin rash, headaches, photosensitivity, and bleaching of hair. Eighth cranial nerve damage and stomatitis are associated with gold therapy. Hirsutism is associated with corticosteroid therapy.

20.

The nurse assesses laboratory results related to blood clotting when the assigned patient takes what drug regularly? (Select all that apply.)

Salicylates

Nonsteroidal anti-inflammatory drugs (NSAIDs)

Gold compounds

Acetaminophen

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Disease-modifying antirheumatic drugs (DMARDs)

Ans:

A, B

263

Feedback: Salicylates and NSAIDs can both inhibit blood clotting resulting in bleeding if not monitored. Gold compounds, acetaminophen, and DMARDs do not have a known impact on blood clotting. 21.

What is chrysotherapy?

Treatment with antimalarials

Treatment with salicylates

Treatment with disease-modifying antirheumatic drugs (DMARDs)

Treatment with gold salts

Ans:

D Feedback: Chrysotherapy is the clinical name for treatment with gold salts in which gold is taken up by macrophages, which then inhibit phagocytosis. It is reserved for use in patients who are unresponsive to conventional therapy and can be very toxic. Options A, B, and C are incorrect.

22.

What drugs used to treat rheumatoid arthritis are contraindicated in a patient who has a history of toxic levels of heavy metals?

Gold salts

COX-2 inhibitors

Propionic acids

Fenamates

Ans:

A Feedback: Gold salts can be extremely toxic and are contraindicated in the presence of any known allergy to gold, severe diabetes mellitus, congestive heart failure, severe debilitation, renal or hepatic impairment,

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hypertension, blood dyscrasias, recent radiation treatment, history of toxic levels of heavy metals, and pregnancy or lactation. COX-2 inhibitors, propionic acids, and fenamates have no contraindications related to prior toxic levels of heavy metals. 23.

Which of these anti-inflammatory drugs have geriatric warnings? (Select all that apply.)

Sulindac (Clinoril)

Indomethacin (Indocin)

Ketorolac (Toradol)

Naproxen (Naprosyn)

Ketoprofen (Orudis)

Ans:

C, D, E Feedback: Geriatric warnings have been associated with naproxen, ketorolac, and ketoprofen because of reports of increased toxicity when they are used by older patients. These nonsteroidal anti-inflammatory drugs should be avoided if possible. Sulindac and indomethacin are not associated with toxicity in older patients.

24.

A patient presents at the emergency department complaining of dizziness, mental confusion, and difficulty hearing. What should the nurse suspect is wrong with the patient?

Anakinra toxicity

Ibuprofen toxicity

Salicylism

Acetaminophen toxicity

Ans:

C Feedback: Salicylism can occur with high dosage of aspirin. Dizziness, ringing in the ears, difficulty hearing, nausea, vomiting, diarrhea, mental confusion, and lassitude can occur. This combination of adverse effects is not associated with anakinra toxicity, ibuprofen toxicity, or acetaminophen toxicity.

25.

A mother brings her 3-year-old child to the emergency department telling the nurse the child has eaten

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a bottle of baby aspirin. The mother cannot tell the nurse how many tablets were in the bottle. What dose of salicylate would be toxic in a child? A)

Ans:

C Feedback: Acute salicylate toxicity may occur at doses of 20 to 25 g in adults or 4 g in children. Therefore, options A, B, and D are incorrect.

26.

A patient arrives at the emergency department brought by his or her friends. The friends tell the nurse that the patient has taken a whole bottle of aspirin. Blood work for salicylate toxicity is run. What does the nurse expect the results to be?

>5 g

>10 g

>15 g

>20 g

Ans:

D Feedback: Acute salicylate toxicity may occur at doses of 20 to 25 g in adults or 4 g in children. Options A, B, and C would not be high enough to indicate salicylate toxicity.

27.

The nursing instructor is discussing COX-2 inhibitors with her nursing students. Where would the instructor tell her students that COX-2 inhibitors work?

At sites of trauma and injury

Wherever prostaglandins are present

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

At the sites of blood clotting

In the kidney

Ans:

266

Feedback: The COX-2 inhibitors are thought to act only at sites of trauma and injury to more specifically block the inflammatory reaction. COX-1 is present in all tissues and seems to be involved in many body functions including blood clotting, protecting the stomach lining, and maintaining sodium and water balance in the kidney. 28.

The clinic nurse is caring for a patient who is taking a COX-2 inhibitor and knows that this patient needs to be assessed for what? (Select all that apply.)

Bleeding time

Liver function

Altered hearing

Gastrointestinal (GI) effects

Water retention

Ans:

A, D, E Feedback: COX-2 inhibitors have an impact on many body functions and patients receiving this therapy should be assessed for GI effects, changes in bleeding time, and water retention. Patients taking COX-2 inhibitors do not need to be evaluated for liver function or altered hearing because these are not common adverse effects.

29.

Why do COX-2 inhibitors increase the risk for cardiovascular problems? (Select all that apply.)

Vasoconstriction is blocked.

Vasodilation is blocked.

Platelet clumping is blocked.

Water and sodium balance is altered.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Gastrointestinal (GI) integrity is altered.

Ans:

B, C

267

Feedback: Recent studies suggest that COX-2 inhibitors may block some protective responses in the body, such as vasodilation and inhibited platelet clumping, which is protective if vessel narrowing or blockage occurs. Blocking this effect could lead to cardiovascular problems. Vasoconstriction is not blocked, water and sodium balance is not altered, and GI integrity is not impacted by COX-2 inhibitors but can be impacted by COX-1 inhibitors. 30.

When nonsteroidal anti-inflammatory drugs (NSAIDs) are combined with loop diuretics, there is a potential for what?

Decreased antihypertensive effect

Decreased diuretic effect

Lithium toxicity

Anaphylactoid reactions

Ans:

B Feedback: Diuretic effect is often decreased when NSAIDs are taken with loop diuretics. There is a potential for decreased antihypertensive effect of beta-blockers if NSAIDs are combined and there have also been reports of lithium toxicity, especially when lithium is combined with ibuprofen.

31.

The nurse is caring for a patient who reports taking 800 mg of ibuprofen three times a day for relief of menstrual cramps. What lab results will the nurse find most significant in assessing this patient?

Complete blood count

White blood cell differential

Arterial blood gas

Cholesterol and triglyceride profile

Ans:

A Feedback:

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Ibuprofen, like all nonsteroidal anti-inflammatory drugs, can cause irritation to the GI mucosa and block platelet clumping, both of which can result in bleeding. Blood loss due to dysmenorrhea can exacerbate these risks so it is important to assess the complete blood count to monitor for excessive blood loss. White blood cell differential would be impacted by infection, which is not indicated here. Arterial blood gas, cholesterol, and triglyceride levels would not be impacted by ibuprofen. 32.

When caring for a patient diagnosed with rheumatoid arthritis, the patient tells the nurse that he or she has had insufficient response to nonsteroidal anti-inflammatory drugs (NSAIDs) and his or her condition continues to worsen. What drug does the nurse anticipate will be ordered next for this patient?

Auranofin (Ridaura)

Ibuprofen (Motrin)

Acetaminophen (Tylenol)

Ketorolac (Toradol)

Ans:

A Feedback: Gold compounds such as auranofin are prescribed when more usual anti-inflammatory therapies are ineffective and the patient’s condition worsens despite weeks or months of standard pharmacological treatment. Ibuprofen and ketorolac are NSAIDs, which have been tried without good results. Acetaminophen is not an anti-inflammatory and would not be appropriate to control this patient’s condition.

33.

The patient has been diagnosed with rheumatoid arthritis. She also reports pain in various muscle groups secondary to a diagnosis of fibromyalgia and dysmenorrhea with painful cramping during menses. What drug would be most effective in treating all three of this patient’s problems?

Naproxen (Naprosyn)

Acetaminophen (Tylenol)

Etanercept (Enbrel)

Sodium hyaluronate (Hyalgan)

Ans:

A Feedback:

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Naproxen is effective in treating muscle pain, arthritis, and dysmenorrhea. Acetaminophen has no antiinflammatory effects and would not be helpful for treating arthritis or dysmenorrhea other than some pain relief. Etanercept is useful only for treating rheumatoid arthritis; sodium hyaluronate is used to treat rheumatoid arthritis when other traditional treatment has been ineffective and the condition continues to worsen. 34.

The nurse is teaching the patient, who has been newly prescribed etanercept (Enbrel), how to administer the medication. What statement is accurate?

Be sure to drink a whole glass of water when swallowing the pill.

Do not take this medication for at least 1 hour after taking an antacid.

You can use each of the subcutaneous injection sites to avoid tissue damage.

Inject this medication deeply into the muscle to promote absorption.

Ans:

C Feedback: Etanercept is given by injecting it into the subcutaneous tissues. The injection sites should be rotated to avoid tissue damage. Because it is not taken orally, there is no requirement related to amount of water to be taken or waiting an hour after taking an antacid. Etanercept is not injected into the muscle but rather into the subcutaneous tissue.

35.

The pediatric patient has a fever and the nurse is preparing to administer an antipyretic. What drug would be the best choice for this patient?

Balsalazide (Colazal)

Naproxen (Naprosyn)

Indomethacin (Indocin)

Aspirin

Ans:

B Feedback: Naproxen is approved for pediatric use and has antipyretic properties. Balsalazide is used to treat ulcerative colitis and would not be appropriate for treating a fever. Indomethacin has anti-inflammatory effects but does not have antipyretic effects. Aspirin would not be appropriate for treating a child with a fever of unknown origin due to risk of Reye’s syndrome.

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Chapter 17 - Immune Modulators

A patient has been diagnosed with hairy cell leukemia. The patient is to begin taking interferon alfa 2b. What will the nurse include in her instructions to the patient concerning this drug?

Avoid drinking alcohol while taking the drug.

Continue to maintain maximal physical activity.

Increase fluid intake while taking the drug.

Treat constipation with over-the-counter laxatives.

Ans:

C Feedback: Interferon alfa 2b is metabolized in the kidney so adequate fluid intake is needed to promote metabolism and excretion of the drug as well as to minimize common adverse effects including dry skin and dizziness. Maintaining maximal physical activity is a good idea but has no relationship to the use of the drug. Fluids should be increased not decreased while taking the drug. Constipation is not an associated adverse effect of this medication.

The health care provider plans to inject an interferon directly into the patient’s wart. What interferon will the nurse prepare?

Interferon alfa 2a (Roferon-A)

Interferon alfacon 1 (Infergen)

Interferon alfa n3 (Alferon N)

Interferon beta 1a (Avonex)

Ans:

C Feedback: Interferon alf n3 is used for intralesional treatment of warts. Interferon alfa 2a is used in the treatment of leukemia. Interferon alfacon 1 is used in the treatment of chronic hepatitis C infection in adults. Interferon beta 1a is used to treat multiple sclerosis in adults.

A 30-year-old woman has been diagnosed with leukemia and will be using an immune modulator for treatment. What will be important to discuss with the patient when the nurse provides patient teaching

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271

about her treatment? A)

The need to continue oral contraceptives

The need to use barrier contraceptives while taking the drug

The need to avoid sexual intercourse while taking the drug

The importance of taking an aspirin daily to decrease the adverse effects of the drug

Ans:

B Feedback: A patient taking an immune modulator would be advised to use barrier contraceptives to prevent pregnancy. The interaction of the immune modulator and the oral contraceptive may interfere with the oral contraceptive’s ability to work properly. Asking patients to avoid sexual intercourse is not necessary if barrier methods are properly used. Daily aspirin would not decrease adverse effects of this drug.

The nurse has an order to administer oprelvekin (Neumega) to a patient for the first time. Before administering the drug, what allergy would the nurse want to specifically question the patient about?

Egg products

Escherichia coliproduced products

Lactose intolerance

Penicillin

Ans:

B Feedback: The interleukins are produced using deoxyribonucleic acid technology and E. coli bacteria. Patients with known allergy to E. coli products should not receive oprelvekin. The allergies to penicillin, egg products, or lactose intolerance would not be of concern with this drug.

The physician has decided to prescribe T- and B-cell suppressors for a patient diagnosed with psoriasis. What drug will be ordered for this patient?

Alefacept (Amevive)

Azathioprine (Imuran)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Cyclosporine (Neoral)

Glatiramer acetate (Copaxone)

Ans:

272

Feedback: Alefacept is prescribed for patients with severe chronic plaque psoriasis. Cyclosporine is used to suppress rejection in a variety of transplant situations. Azathioprine is used to treat patients with rheumatoid arthritis and in prevention of rejection in renal homotransplants. Tacrolimus is used for prevention of rejection after renal or liver transplantation. 6.

A patient who is receiving an immune suppressant has been admitted to the unit. What would be a priority action by the nurse?

Monitor nutritional status.

Provide patient teaching regarding the drug.

Protect the patient from exposure to infection.

Provide support and comfort measures in relation to adverse effects of the drug.

Ans:

C Feedback: Patients taking immune suppressant drugs are more susceptible to infection because the patient’s normal body defenses will be diminished. As a result, the priority action by the nurse would to protect the patient from exposure to infection through room selection, good hand hygiene, and taking care to avoid exposure to sick staff members. Teaching will need to include avoiding crowded places and people with known infection and those working in soil. Nutritional status is important as are comfort and support measures and other instructions concerning the drug. However, protecting the patient from infection should be the priority action.

A nurse is discussing interferon alfa 2b with a patient. What will the nurse encourage the patient to do while taking this drug?

To avoid crowds

To increase salt intake

To decrease milk intake

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

To eat three meals a day

Ans:

273

Feedback: Potential adverse effects in addition to the types of conditions interferon alfa 2b is prescribed to contribute to the need for the patient to take care to avoid people with infections so the patient should be taught to avoid crowds whenever possible. Adverse effects include dizziness, confusion, rash, dry skin, anorexia, nausea, bone marrow suppression, and flu-like syndrome. Salt, diet, and milk do not interfere with this drug. 8.

A 70-year-old patient with acute myelocytic leukemia is receiving sargramostim (Leukine). What is a priority nursing action for this patient?

Providing a quiet environment

Increasing fluids

Providing comfort measures related to nausea

Encouraging appropriate dietary intake

Ans:

B Feedback: A common adverse effect of this drug is vomiting and diarrhea. Due to the patient’s age it would be important to keep him hydrated. Vomiting and diarrhea can cause dehydration quickly in the elderly. Providing a quiet environment and comfort measures for the nausea would be important but not as critical as increasing fluids. Diet is very important to this patient; however, usually this drug causes a loss of appetite. Therefore, increasing fluids would be extremely important to the patient’s nutritional status.

The nurse is caring for a patient in the immediate postoperative period following cardiac transplantation who is receiving mycophenolate (CellCept) twice a day IV. What will the nurse teach the patient regarding drug therapy? (Select all that apply.)

The drug will be given orally as soon as possible.

Take the medication three times a day.

Avoid people with contagious diseases.

Ask a pharmacist about drugdrug interactions before taking any over-the-counter (OTC) drug.

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Never miss a dose of medication.

Ans:

A, C, D, E

274

Feedback: The nurse will explain that the IV medication will be changed to oral therapy when the patient is able to tolerate oral medications. The patient will take the medication twice a day, not three times a day. Care should be taken to never miss a dose. The patient should avoid other medications that are hepatotoxic or nephrotoxic due to a risk of increased toxicity so the patient should be taught to always consult a doctor or pharmacist before beginning an OTC drug. Patients who have immune suppression must be taught how to reduce risk of infection, including avoiding people with contagious diseases, such as colds or viruses. 10.

The nurse administers aldesleukin to a patient diagnosed with renal cell carcinoma. When assessing the patient a few days later, what abnormal findings would the nurse attribute to the medication? (Select all that apply.)

Increased lymphocyte count

Increased red blood cell count

Increased platelet count

Irregular pulse rate

Increased blood pressure

Ans:

A, C, D Feedback: Aldesleukin activates human cellular immunity and inhibits tumor growth through increases in lymphocytes, platelets, and cytokines. Common adverse effects include hypotension, sinus tachycardia, arrhythmias, as well as pruritus, nausea, vomiting, diarrhea, anorexia, GI bleeding, bone marrow suppression, respiratory difficulties, fever, chills, pain, mental status changes, and dizziness. There is no impact on red blood cell count. It does not raise blood pressure.

11.

While studying for a pharmacology test, a student asks his peers about interferons. What statement about interferons is accurate?

They stimulate B-lymphocyte activity.

They interfere with multiplication of stem cells.

They stimulate growth and differentiation of lymphoid cells into lymphocytes.

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They interfere with the ability of viruses in infected cells to replicate.

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275

Feedback: Interferons are substances naturally produced and released by human cells that have been invaded by viruses. They may also be released from cells in response to other stimuli, such as cytotoxic T-cell activity. Interferons do not stimulate B-lymphocyte activity, interfere with multiplication of stem cells, nor do they stimulate growth and differentiation of lymphoid cells into lymphocytes. 12.

How do immune suppressants work when ordered for a patient who has had an organ transplant?

Blocking normal effects of the immune system

Stimulating immune system to fight off infection

Working with corticosteroids to enhance healing

Working with corticosteroids to promote suppressor cells

Ans:

A Feedback: Immune suppressants are used to block the normal effects of the immune system in cases of organ transplantation (in which nonself-cells are transplanted into the body and destroyed by the immune reaction) and in autoimmune disorders (in which the body’s defenses recognize self-cells as foreign and work to destroy them) in some cancers. Options B, C, and D are distracters for this question.

13.

A patient has just been told that her cancer has metastasized to her right kidney. An interferon (Aldesleukin) has been prescribed to treat this metastasis. The patient asks why this interferon is ordered. What is the nurse’s best response?

Aldesleukin has been shown to protect autologous tumor cells.

Aldesleukin has been shown to inhibit tumor growth.

Aldesleukin has been shown to enhance allogeneic stem-cell transplantation.

Aldesleukin has been shown to have a direct proliferative effect on renal tumors.

Ans:

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Feedback: Aldesleukin is prescribed for metastatic renal cell carcinoma in adults and treatment of metastatic melanomas (orphan drug use) working by activating human cellular immunity and inhibiting tumor growth through increases in lymphocytes, platelets, and cytokines. Aldesleukin does not protect autologous tumor cells, enhance allogeneic stem-cell transplantation, or have a direct proliferative effect on renal tumors. 14.

The nurse admits a patient who was newly diagnosed with Kaposi’s sarcoma to the unit. The physician has ordered an IV infusion of an interferon. What drug would be appropriate?

Interferon beta1a

Interferon gamma 1b

Interferon alfa 2b

Peginterferon alfa 2b

Ans:

C Feedback: Interferon alfa 2b indications include hairy cell leukemia, melanoma, AIDS-related Kaposi’s sarcoma, chronic hepatitis B and C infection, intralesional treatment of condyloma acuminatum in patients 18 years of age or older. No other interferons are indicated for treatment of Kaposi’s sarcoma.

15.

The pharmacology instructor is talking about interferon. The instructor explains that agents, such as interferons, have more than one biologic function. What are the functions of interferons? (Select all that apply.)

Antibacterial

Antiviral

Immunomodulatory

Antiproliferative

Anticancer

Ans:

B, C, D Feedback:

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Interferons act to prevent virus particles from replicating inside the cells. They also stimulate interferon receptor sites on noninvaded cells to produce antiviral proteins, which prevent viruses from entering the cell. In addition, interferons have been found to inhibit tumor growth and replication, to stimulate cytotoxic T-cell activity, and to enhance the inflammatory response. Options A and E are incorrect. 16.

The nursing class is studying monoclonal antibodies. What monoclonal antibody reacts to human T cells, disabling them and acting as an immune suppressor?

Adalimumab

Cetuximab

Rituximab

Muromonab-CD3

Ans:

D Feedback: Muromonab-CD3, the first monoclonal antibody approved for use, is a T-cellspecific antibody, that is available as an IV agent. It reacts as an antibody to human T cells, disabling the T cells, acting as an immune suppressor. Adalimumab is an antibody specific for human tumor necrosis factor. Cetuximab is an antibody specific to epidermal growth factor receptor sites. Rituximab is an antibody specific to sites on activated B lymphocytes.

17.

What monoclonal antibody is used to prevent respiratory syncytial virus (RSV) in high risk children?

Palivizumab

Natalizumab

Belimumab

Eculizumab

Ans:

A Feedback: Palivizumab is specific to the antigenic site on respiratory syncytial virus (RSV); it inactivates that virus. It is used to prevent RSV disease in high-risk children. Natalizumab is an antibody specific to surface receptors on all leukocytes except neutrophils. Belimumab is a specific inhibitor of Blymphocyte stimulator that inhibits the survival of B-lymphocytes and their differentiation into immune-globulin producing cells. Eculizumab binds to complement proteins and prevents the formation of the complement complex.

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18.

278

The nurse is caring for a patient with an allograft transplant. The physician orders a monoclonal antibody to prevent rejection of the transplant. What monoclonal antibody would the nurse expect to be ordered?

Alemtuzumab

Daclizumab

Erlotinib

Omalizumab

Ans:

B Feedback: Daclizumab is specific to interleukin-2 receptor sites on activated T lymphocytes; it reacts with those sites and blocks cellular response to allograft transplants. Alemtuzumab is an antibody specific for lymphocyte receptor sites used to treat chronic lymphocytic leukemia patients who have been treated with alkylating agents and have been failed by fludarabine therapy. Erlotinib is effective against specific malignant receptor sites. Omalizumab is an antibody to immunoglobulin E, an important factor in allergic reactions.

19.

The pharmacology instructor is explaining interleukins to the class. What would be the best definition of interleukins?

They are substances naturally produced and released by human cells that have been invaded by viruses.

They block the inflammatory reaction and decrease initial damage to cells.

They are chemicals used to communicate between leukocytes and stimulate immunity.

They attach to specific receptor sites and respond to very specific situations.

Ans:

C Feedback: Interleukins are chemicals produced by T cells to communicate between leukocytes and stimulate cellular immunity and inhibit tumor growth. Immune suppressants block the inflammatory reaction and decrease initial damage to cells. Interferons are naturally produced and released by human cells that have been invaded by viruses. Monoclonal antibodies attach to specific receptor sites and respond to very specific situations.

20.

The nurse is caring for a female patient, aged 62, who has been admitted for treatment of metastatic

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melanoma. What agent would the nurse anticipate the physician is likely to order? A)

Aldesleukin

Interferon alfa 2b

Cyclosporine

Ipilimumab

Ans:

D Feedback: Ipilimumab is a human cytotoxic T-cell antigen-4 blocking antibody. By blocking this site, T cells are activated and proliferate at a faster rate. It is used to treat patients with unresectable or metastatic melanoma. Aldesleukin is an interleukin, used for metastatic renal cell carcinoma in adults; a treatment of metastatic melanomas. Interferon alfa 2b is indicated for hairy cell leukemia, melanoma, AIDSrelated Kaposi’s sarcoma, chronic hepatitis B and C infections, intralesional treatment of condyloma acuminatum in patients 18 years of age or older. Cyclosporine is a T and B cell suppressor and is indicated for prophylaxis for organ rejection in kidney, liver, and heart transplants (used with corticosteroids); treatment of chronic rejection in patients previously treated with other immunosuppressants; treatment of rheumatoid arthritis; and recalcitrant psoriasis.

21.

While studying the T- and B-cell immune suppressors, the nursing students learn that the most commonly used immune suppressant is what?

Cyclosporine (Sandimmune)

Azathioprine (Imuran)

Pimecrolimus (Elidel)

Glatiramer (Copaxone)

Ans:

A Feedback: Several T- and B-cell immune suppressors are available for use. Of the numerous agents available, cyclosporine is the most commonly used immune suppressant. Options B, C, and D are all T- and Bcell immune suppressors, they are simply not the most commonly prescribed.

22.

What interleukin receptor antagonist would the nurse anticipate is most likely to be ordered for a patient, 25 years old, who has not responded to traditional antirheumatic drugs?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Natalizumab (Tysabri)

Anakinra (Kineret)

Eculizumab (Soliris)

Adalimumab (Humira)

Ans:

280

Feedback: Anakinra is used to reduce the signs and symptoms of moderately to severely active rheumatoid arthritis in patients 18 years of age and older who have not responded to the traditional antirheumatic drugs. Options A, C, and D are monoclonal antibodies, therefore they are incorrect answers. 23.

A patient with chronic hepatitis C has been prescribed peginterferon alfa 2b (PEG-INTRON). By what route would the nurse administer this drug?

Subcutaneously (SQ)

Intramuscularly (IM)

Intralesionally (IL)

Orally

Ans:

A Feedback: PEG-INTRON, like many of the interferons, is administered subcutaneously. Avonex is given intramuscularly. Interferon alfa n3 is given intralesionally. There are no interferons given orally.

24.

The patient has arrived in the short stay unit for an infusion of tositumomab with 131 tositumomab (Bexxar). Before beginning the infusion, the nurse assesses the patient’s vital signs and finds the patient has a temperature of 101.5ºF, What is the nurse’s priority action?

Holding the infusion until patient is afebrile

Notifying the physician

Starting the infusion and inform the physician

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Treating the fever before beginning the therapy

Ans:

281

Feedback: Monoclonal antibodies should be used cautiously with fever (treat the fever before beginning therapy). This makes Options A, B, and C incorrect. 25.

A 72-year-old male patient has arrived at the outpatient unit to receive an infusion of alemtuzumab (Compath). The patient tells the nurse this is the second time his chronic lymphocytic leukemia has relapsed and the second time he will receive this drug because he failed alemtuzumab therapy after being treated with an alkylating agent. What is the priority nursing action?

Calling the physician and questioning the order

Washing your hands

Beginning an intravenous infusion

Canceling the infusion

Ans:

A Feedback: Monoclonal antibodies should be used cautiously in patients who have had previous administration of the monoclonal antibody (serious hypersensitivity reactions can occur with repeat administration). The nursing priority would be to question the order because the patient has already received alemtuzumab (Compath) previously and if the order is verified, this patient should be monitored very carefully, perhaps starting to infuse more slowly until the patient’s reaction can be determined. Only after questioning the order and having it verified would the nurse perform hand hygiene and begin the infusion.

26.

The nurse is writing a plan of care for a patient receiving immune suppressants for leukemia. What would be an appropriate nursing diagnosis for this patient?

Anxiety related to diagnosis and drug therapy

Acute pain related to central nervous system (CNS), gastrointestinal (GI), and flu-like effects

Risk for infection related to immune stimulation

Imbalanced nutrition: More than body requirements

Ans:

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282

Feedback: Nursing diagnoses related to drug therapy might include: Acute pain related to CNS, GI, and flu-like effects. Anxiety related to diagnosis and drug therapy is a nursing diagnosis for a patient on an immune stimulant. There is no risk for infection related to immune stimulation unless an adverse effect occurs. Imbalanced nutrition would be less than body requirements due to flu-like symptoms resulting in diminished appetite. 27.

The nurse is preparing a patient to receive immunosuppressant drugs on an outpatient basis. What is the priority for the nurse to arrange for this patient in the home environment?

A caregiver who is skilled in cardiopulmonary resuscitation (CPR)

A caregiver who will provide adequate nutrition

Supportive care and comfort measures

Arrange for a home care nurse to administer injections

Ans:

C Feedback: Arrange for supportive care and comfort measures for flu-like symptoms (rest, environmental control, acetaminophen) to decrease patient discomfort and increase therapeutic compliance. Patients may also need support and comfort measures related to diagnosis and drug therapy. Although knowledge of CPR and providing appropriate nutrition are always positive actions, they are not related to administration of immunosuppressants. The patient or caregiver can be taught to administer injections unless the medication is to be given IV, in which case the patient would go to an infusion center.

28.

The nurse is caring for a patient who has a diagnosis of chronic hepatitis B infection and has been prescribed an immune stimulant. After teaching the patient about the treatment plan, how might the nurse evaluate the effectiveness of teaching?

The patient can state where to go to get the medication.

The patient can state who will administer the medication.

The patient can state what positive effects to watch for.

The patient can state specific measures to avoid adverse effects.

Ans:

D Feedback:

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283

The nurse would evaluate that the teaching plan was successful if the patient can name drug, dosage, adverse effects to watch for, and specific measures to avoid adverse effects. Knowing where to get the medication, who will administer it, and the positive effects to watch for would not be an adequate assessment of the teaching plan. 29.

The patient underwent an allograft renal transplant 48 hours earlier and is showing signs of rejection. What drug would the nurse expect the physician to order?

Muromonab

Anakinra

Mycophenolate

Sirolimus

Ans:

A Feedback: Muromonab is indicated for the treatment of acute allograft rejection in patients undergoing renal transplantation. It also is indicated for the treatment of steroid-resistant acute allograft rejection in those receiving heart or liver transplants. Anakinra, mycophenolate, and sirolimus are useful for preventing renal or liver transplant rejection.

30.

The nurse, working with a nursing student, is caring for a patient who is to receive interleukins. The student nurse asks you what happens physiologically when a patient receives interleukins. What is the nurse’s best response?

It really helps the patient!

The patient has increases in the number of natural killer cells.

The patient has decreased cytokine activity.

The patient gets really sick from flu-like symptoms and then they get better.

Ans:

B Feedback: When interleukins are administered, there are increases in the numbers of natural killer cells and lymphocytes, in cytokine activity, and in the number of circulating platelets. Options A, C, and D are incorrect.

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31.

284

The nurse is caring for a child requiring cyclosporine to prevent rejection. Cyclosporine is given to adults using a dosage of 15 mg/kg. The nurse calculates the child’s dosage is 20 mg/kg. What is the nurse’s priority action?

Administer the drug.

Hold the dose and question the ordering provider.

Complete an incident report if this dosage has already been given before.

Notify the nursing supervisor of the medication error.

Ans:

A Feedback: The nurse would administer the medication as ordered because doses larger than those given to adults are often needed when cyclosporine is administered to children. This is not an error so the nurse would not hold the drug, question the provider, complete an incident report, or notify the nursing supervisor.

32.

When caring for older adults receiving immune modulators, what are the nurse’s priorities of care? (Select all that apply.)

Assess carefully for infection.

Obtain baseline liver function studies and monitor follow-up studies.

Determine dosage based on renal and liver function.

Minimize teaching to avoid causing confusion.

Encourage the family to visit often, especially young children.

Ans:

A, B, C Feedback: Older patients may be more susceptible to the effects of the immune modulators, partly because the aging immune system is less efficient and less responsive. These patients need to be monitored closely for infection, GI, renal, hepatic, and central nervous system effects. Baseline renal and liver function tests can help to determine whether a decreased dosage will be needed before beginning therapy. Because these patients are more susceptible to infection, they need to receive extensive teaching, not less teaching, about ways to avoid infection and injury. Contact with young children and large groups of people increase the risk of infection.

33.

The nurse teaches the female patient receiving immune modulating drugs about the need to use barrier

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285

contraceptives. The patient says, I hate using barrier contraceptives. Why can’t I just take oral contraceptives? What is the nurse’s best response? A)

Effects of oral contraceptives may be altered by liver changes or changes in immune response.

Oral contraceptives increase the action of immune modulating drugs so dosage needs to be reduced.

Immune modulators make oral contraceptives ineffective because of hormonal impact of drugs.

Oral contraceptives are acceptable if barrier contraceptives are distasteful, but only high-estrogen pills can be used.

Ans:

A Feedback: The use of barrier contraceptives is advised because the effects of oral contraceptives may be altered by liver changes or by changes in the body’s immune response, potentially resulting in unexpected pregnancy. The other options conflict with this information and are incorrect.

34.

The nurse is caring for a young adult woman taking immune modulating medications who has been advised to use barrier contraceptives but she wants to start her family. What information can the nurse provide about these drugs to help this patient with her decision-making?

Discuss the desire to start a family with the provider so risk can be minimized.

Immune modulating drugs will need to be discontinued if pregnancy occurs.

Immune modulating drugs have been proven to be highly teratogenic.

Pregnancy is not an option when taking immune modulating drugs but adoption is an option.

Ans:

A Feedback: If a patient taking immune modulators becomes pregnant or decides that she wants to become pregnant, she should discuss this with her health care provider and review the risks associated with use of the drug or drugs being taken. Monoclonal antibodies should be used with caution during pregnancy and lactation. Because results of long-term studies of most of these drugs are not yet available, it may be prudent to advise patients taking these drugs to avoid pregnancy if possible. Immune modulating drugs do not need to be discontinued, but the safest drug should be prescribed. Most immune modulating drugs have not been studied and there is not enough information to know whether they are teratogenic. The nurse cannot tell a patient that pregnancy is not an option.

35.

The nurse is caring for a patient diagnosed with rheumatoid arthritis (RA) who recently underwent a

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286

liver transplant. What immunosuppressant could this patient be prescribed that would treat both diagnoses? A)

Anakinra (Kineret)

Adalimumab (Humira)

Sirolimus (Rapamune)

Cyclosporine (Sandimmune)

Ans:

A Feedback: Anakinra is used to prevent rejection after kidney or liver transplantation and also reduces signs and symptoms of RA in patients who have had inadequate response to other drugs. Adalimumab would be effective for the patient’s RA but would not prevent rejection of the transplanted liver. Sirolimus is used to prevent rejection of kidney transplants but would not be effective for either of the patient’s diagnoses. Cyclosporine would be appropriate to prevent liver rejection but would not treat RA.

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Chapter 18 - Vaccines and Sera

The nursing instructor is discussing immunity with her clinical group. What statement would the instructor make that would be accurate about immunity?

Active immunity occurs with injected antibodies that react with specific antigens.

Serum sickness results when the body fights antibodies injected as a form of active immunity.

Passive immunity occurs when foreign proteins are recognized and the body produces antibodies.

Passive immunity is limited, lasting only as long as the antibodies circulate.

Ans:

D Feedback: Unlike active immunity, passive immunity is limited. It lasts only as long as the circulating antibodies last because the body does not produce its own antibodies as found in active immunity. People are born with active immunity in which the body recognizes a foreign protein and begins producing antibodies to react with specific proteins or antigens. Serum sickness is a massive immune reaction against the injected antibodies that occur with passive immunity.

A mother brings her 18-month-old child into the clinic for a well-baby check-up. A nurse will administer measles, mumps, and rubella vaccine (MMR) to the child. What dosage will the nurse administer?

1.0 mL subcutaneously

0.75 mL subcutaneously

0.5 mL subcutaneously

0.25 mL subcutaneously

Ans:

C Feedback: The nurse will administer 0.5 mL. This is the recommended dose for adults and children older than 15 months of age.

A public health nurse is on a mission trip to Africa where she is administering Dryvax. The patient asks the purpose of this drug and the nurse explains it will prevent what?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Yellow fever

Smallpox

Chickenpox

Rabies

Ans:

288

Feedback: Dryvax is the immunization for smallpox disease. Varivax is the immunization for chickenpox infection. YF-Vax is the immunization for yellow fever and RabAvert is the immunization for rabies. 4.

The mother of a newborn is learning about immunization schedules. The nurse tells this mother her child will ideally receive the immunization for measles, mumps, and rubella (MMR) on what schedule?

2 months, 4 months, between 6 and 18 months, and between 4 and 6 years

2 months, 4 months, 6 months, and between 12 and 15 months

Between 12 and 15 months and between 4 and 6 years

Between 24 months and 18 years of age

Ans:

C Feedback: The recommended schedule for the MMR is the first dose between 12 and 15 months and the second dose between 4 and 6 years. The schedule for inactivated poliovirus is 2 and 4 months, between 6 and 18 months, and between 4 and 6 years. Immunization for Haemophilus influenzae is 2, 4, and 6 months and between 12 and 15 months. The schedule for hepatitis A is between 24 months and 18 years of age.

A 14-year-old boy is brought to the clinic by his mother. The patient has a note from his basketball coach explaining that a member of the team has been diagnosed with hepatitis A infection. The nurse notes that the patient has an extensive list of allergies. What is the nurse’s priority action when administering the immune globulin?

Perform a hepatitis A antibody check.

Monitor the patient carefully and have emergency equipment ready if needed.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Apply ice to the injection site to slow the absorption of the serum.

Give the patient aspirin and a corticosteroid before the injection to modulate reaction.

Ans:

289

Feedback: If a patient has known allergies, it is important to monitor the patient carefully and have emergency equipment ready if needed after injection of proteins such as immune globulin. Severe allergic reactions, including anaphylaxis, could occur. Ice would slow absorption of the immune globulin, delaying the reaction and delivery of the immune globulin to the bloodstream where it can act on the hepatitis A virus. If a person had hepatitis A antibodies, the immune globulin would not be needed. The delay in getting that information could be problematic if the patient had been exposed to hepatitis A. Aspirin should be avoided in children due to risk of Reye’s syndrome. Corticosteroids can reduce immune response and so would be contraindicated. 6.

A nurse is providing patient education to the mother of a child receiving a first immunization. The nurse tells the mother that after the injection, it is normal for the child to exhibit what signs and symptoms?

Vomiting and diarrhea

High fever and sweating

Lethargy, drowsiness, and irritability

Pain, redness, and swelling at site of injection

Ans:

D Feedback: Normal reactions to immunizations include pain, redness, and swelling at the site of the injection. Vomiting, diarrhea, high fever, sweating, lethargy, or drowsiness would not be expected and should be reported. The child could also be slightly irritable due to the pain at the injection site.

A 69-year-old patient comes to the clinic to talk to the nurse. The patient asks the nurse about when he should get the pneumonia vaccine. The patient’s medical record reveals that he received the vaccine at age 55. What should the nurse tell the patient?

This vaccine is only given once and you have already had it.

This vaccine is given every 10 years and you will be due next year.

This vaccine is only repeated if the first dose was given before age 65. You should have another vaccine.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

This vaccine is no longer recommended. Don’t worry about getting pneumonia.

Ans:

290

Feedback: The pneumonia vaccine contains 23 strains and is believed to offer lifetime protection. The tetanus vaccine is given every 10 years. The vaccine is recommended for anyone at risk, especially those over age 65. Options C and D are distracters. 8.

A mother has brought her infant to the clinic for the first immunization. What would the nurse be sure to include when providing patient education for the infant’s mother?

Avoid having her child get more than one vaccine at a time.

Stop the immunizations after 2 years of age.

Keep a written record of the child’s immunizations.

Omit immunizations if the injections are too upsetting for her child.

Ans:

C Feedback: Provide thorough patient teaching, including measures to avoid adverse effects, warning signs of problems, the need to keep a written record of immunizations, to increase knowledge about drug therapy, and to increase compliance with the drug regimen. Immunization records are often requested when the child is being enrolled in school so it is important for the mother to maintain these records. The nurse would not teach the mother to avoid having her child take more than one vaccine at a time, or to stop the immunizations after the age of 2, or to omit the immunizations if the injections are too upsetting to her child.

A mother brings her 18-month-old son into the clinic for his diphtheria, tetanus, and pertussis vaccine. The child has a runny nose, a fever of 102.4ºF and is coughing. What should the nurse do?

Administer the vaccine but monitor the child afterward for an extended time period.

Give an antipyretic and administer vaccine when temperature is within normal range.

Administer a reduced dose of the vaccine today and a normal dose when child is healthy.

Hold the immunization until the child is free of allergic or cold-like symptoms.

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Ans:

291

D Feedback: The nurse should not administer the immunization if the child exhibits signs of acute infection because the vaccine can cause mild infection and can exacerbate acute infections. The child should be free of infection for several days before the immunization is given. Treating the fever, extended monitoring, or smaller doses will not overcome this risk and the only option is to hold the immunization until the child is healthy.

10.

When discussing vaccines in class, a student asks the nursing instructor what an antitoxin is. What is the instructor’s best response?

It is an immune serum for snake bites.

It is a type of vaccine.

It is a form of active immunity.

It is a form of passive immunity.

Ans:

D Feedback: An antitoxin is an example of passive immunity. Antitoxins contain antibodies to very specific toxins. The antibodies are injected into the system and react with invading pathogens. Active immunity occurs when the body recognizes a foreign protein and begins producing antibodies to react against that specific protein or antigen. Vaccines are immunizations containing weakened or altered protein antigens that stimulate formation of antibodies against a specific disease. They are used to promote active immunity. Antivenin is used to refer to immune sera that have antibodies to venom that might be injected through spider or snake bites.

11.

The nurse is presenting an educational event about vaccines at a local elementary school. When talking about vaccines, the nurse explains they are generally contraindicated in what situations?

In people who have renal impairment

In people who have hepatic failure

In people who are immunosuppressed

In people who are over 65

Ans:

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Feedback: The use of vaccines is contraindicated in the presence of immune deficiency because the vaccine could cause disease and the body would not be able to respond as anticipated if in an immunodeficient state, during pregnancy because of potential effects on the fetus and on the success of the pregnancy, in patients with known allergies to any of the components of the vaccine (refer to each individual vaccine for specifics, sometimes including eggs, where some pathogens are cultured), or in patients who are receiving immune globulin or who have received blood or blood products within the last 3 months because a serious immune reaction could occur. Vaccines are not contraindicated in people with renal impairment or who have hepatic failure nor are they contraindicated in people over the age of 65. 12.

The clinic nurse is administering vaccines at well-baby checkups. Before administering a diphtheria, tetanus, and pertussis (DTP) vaccine, what vital sign is most important for the nurse to check?

Temperature

Pulse

Blood pressure

Respirations

Ans:

A Feedback: Caution should be used whenever a vaccine is given to a child with a history of febrile convulsions or cerebral injury, or in any condition in which a potential fever would be dangerous. Caution also should be used in the presence of any acute infection. As a result, checking the child’s temperature is most important because this would be an indicator of potential infection. The nurse should ask the mother about history of febrile seizures or any condition that would make a fever dangerous.

13.

The nurse is assigned to perform telephone triage for the clinic and receives a call from a young mother whose 6-month-old baby received her third diphtheriapertussistetanus immunization that morning. The mother reports the baby’s temperature is 99.8° axillary, the site of injection is a little red, and the baby is irritable. After checking the standing orders provided by the pediatrician, what teaching would the nurse provide this mother? (Select all that apply.)

These are common adverse effects reported after immunizations.

Bring the baby back to the clinic for an examination.

Apply a warm moist compress to the baby’s leg.

Aspirin can be given to manage fever symptoms.

Symptoms should subside within 2 to 3 days.

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Ans:

293

A, C, E Feedback: The symptoms reported by this mother are all common adverse effects following immunization that will subside within 2 to 3 days. In the meantime, the mother can make the baby more comfortable by administering a weight appropriate dosage of acetaminophen, applying warm compresses to the injection site, and providing a quiet environment. If the symptoms do not subside within 2 to 3 days, the baby should be seen for follow-up care. Aspirin should not be given due to risk of Reye’s syndrome.

14.

The nurse is describing the schedule for vaccinations to the parents of a new baby. The nurse explains the measlesmumpsrubella (MMR) vaccine is first administered at what age?

1 month

3 months

6 months

15 months

Ans:

D Feedback: MMR is administered initially as a combined vaccine at 15 months. Therefore, options A, B, and C are incorrect.

15.

A male patient, aged 78 presents in the emergency department after stepping on a nail. The patient tells the nurse that he had his last tetanus shot 12 years ago and asks whether he will need another shot today. The nurse explains that tetanus boosters are required how often?

Yearly

Every 10 years

Every 2 years

Every 5 years

Ans:

B Feedback:

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294

Having a tetanus booster shot every 10 years will help to protect older adults from exposure to that illness. Ask the patient about any adverse reaction to previous tetanus boosters, and weigh that risk against the possible exposure to tetanus. Options A, C, and D are incorrect information to give the patient. 16.

The nurse works in a geriatric clinic and promotes administration of influenza immunizations to patients over age 65 how frequently?

Once at age 65

Yearly

Every 5 years

As a one-time dose

Ans:

B Feedback: In addition, adults with chronic diseases are advised to be immunized yearly with an influenza vaccine, and also once with a pneumococcal pneumonia vaccine. Options A, C, and D are incorrect.

17.

A group of nursing students are presenting information on the hepatitis B vaccine. What would the students prepare to tell others about the recommended population?

Children under the age of 15

Infants and people at risk for contracting the disease

People with diabetes mellitus or renal disease

People over the age of 65

Ans:

B Feedback: Patients indicated to receive the vaccine are susceptible people and infants. Indications for receiving the vaccine do not include children under the age of 15, people with diabetes or renal disease, or all people over the age of 65.

18.

A patient, aged 72, is brought to the clinic by her daughter. The daughter asks how often her mother should receive the influenza vaccine. What would be the nurse’s best response?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Your mother only needs the influenza vaccine once in her lifetime.

Your mother needs the influenza vaccine every 10 years.

Your mother should receive the vaccine once, with two booster injections.

Your mother needs the influenza vaccine yearly.

Ans:

295

Feedback: In general, all adults with chronic diseases are advised to be immunized yearly with an influenza vaccine, and once with a pneumococcal pneumonia vaccine. Options A, B, and C are incorrect information to give to the patient and her daughter. 19.

The nursing instructor is explaining the best way to assess whether active immunity has developed from the administration of the hepatitis B series. What would the instructor cite as the best assessment method?

Serum antibody levels

Liver not palpable

Aspartate aminotransferase within normal limits

Absence of symptoms of hepatitis B infection

Ans:

A Feedback: In many cases, antibody titers (i.e., levels of the antibody in the serum) can be used to evaluate a patient’s response to an immunization and to determine the need for a booster dose.

20.

A young mother asks the clinic nurse about the chickenpox vaccine. The mother states that she and her husband have both had chickenpox, but that she wants to protect her child if she can. What should the nurse tell the mother about the recommendation for the varicella vaccine?

It is recommended for all children who have not been exposed to the varicella virus.

It is not recommended for children under the age of 6.

It is not recommended for children who have not been exposed to the varicella virus.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

It is recommended only for adults who have not had chickenpox.

Ans:

296

Feedback: ProQuad is an immunization against measles, mumps, rubella, and varicella virus vaccine indicated for children aged 12 months to 12 years. Varicella virus vaccine is indicated for adults and children older than 12 months of age. Immune globulin can be administered for short-term passive immunity to those exposed to chickenpox who are at high risk for complications from the disease such as those with immunoglobulin deficiency. 21.

The clinic nurse is explaining recommended vaccines to the local parentteacher association. What vaccine would the nurse tell the attendees is recommended for children older than 7 years and for adults?

Measlesmumpsrubella (MMR)

Typhoid

Diphtheria

Varicella B

Ans:

C Feedback: Diphtheria and tetanus toxoids, combined, adsorbed (DT, Td) two IM injections of 0.5 mL at intervals of 4 to 8 weeks, with booster of 0.5 mL in 6 to12 months. Immunization is required for adults and children older than 7 years of age against diphtheria and tetanus. Tetanus booster is required every 10 years or with injury that could precipitate tetanus. Options A, B, and D are not correct.

22.

A patient has come to the clinic for an allergy shot. The patient asks the nurse what immunoglobulin (Ig) is located in the body’s tissues and is thought to be responsible for allergic reactions. What is the nurse’s best response?

IgG is thought to be responsible for allergic reactions.

IgA is thought to be responsible for allergic reactions.

IgM is thought to be responsible for allergic reactions.

IgE is thought to be responsible for allergic reactions.

Ans:

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297

Feedback: IgE is the immune globulin that is associated with allergic reactions. These antibodies react with mast cells, causing the release of histamine and other inflammatory chemicals when they have combined with the antigen. IgG, IgA, and IgM are not involved in allergic reactions. 23.

A patient is brought to the emergency department after being bitten by a rattlesnake. The nurse asks the patient to describe the snake that bit him. Why would the nurse ask this question?

Antivenin is very specific for antigens to which they can respond.

Antivenin can only respond to cells that have not been attacked by the venom.

Antivenin only responds to a specific group of spiders or snakes.

Antivenin is very non-specific about a class of snakes or spiders.

Ans:

A Feedback: The term antivenin is used to refer to immune sera that have antibodies to venom that might be injected through spider or snake bites. These drugs are used to provide early treatment following exposure to known antigens. They are very specific for antigens to which they can respond. Therefore, options B, C, and D are incorrect.

24.

A student asks the instructor how vaccines provide active immunity. The instructor’s best answer explains that active immunity is provided by stimulating production of antibodies to what?

A bee sting

A specific protein

A foreign substance in the body

A snake bite

Ans:

B Feedback: Vaccines provide active immunity by stimulating production of antibodies to a specific protein, which may produce the signs and symptoms of a mild immune reaction, but it protects the person from the more devastating effects of disease. This protein may be a foreign substance, a bee sting, or a snake

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bite, but these answers are too narrow in focus. 25.

The nurse at the pediatric clinic gives the mother of an infant a written record of the infant’s immune sera use. The nurse encourages the mother to keep the information. What is the rationale behind keeping a written record of immune sera use?

To keep track of where the immune sera was given

To identify who gave the immune sera

To avoid future reactions

To identify the lot number of the immune sera used

Ans:

C Feedback: Provide a written record of immune sera use and encourage the patient or family to store that information safely to ensure proper medical treatment and to avert future reactions. Written records are not kept to keep track of where the immune sera was given or to identify who gave the immune sera or to identify the lot number of the immune sera used as this information will have no value in the future.

26.

What occurs when the host human responds to the injected antibodies circulating through the body?

The host forms antigenantibody complexes with the injected antibodies.

The host produces a passive immunity to the antibodies.

The circulating antibodies attack the host cells.

The host produces its own antibodies to the injected antibodies.

Ans:

D Feedback: In some cases, the host human responds to the circulating injected antibodies, which are foreign proteins to the host’s body, by producing its own antibodies to the injected antibodies. This results in serum sickness, a massive immune reaction that is manifested by fever, arthritis, flank pain, myalgia, and arthralgia. Options A, B, and C are incorrect answers to the question.

27.

The nurse is developing a written plan of care for a patient receiving vaccines. What would be an appropriate nursing diagnosis for this patient?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ineffective tissue perfusion if severe reaction occurs

Chronic pain related to local, gastrointestinal (GI), and flu-like effects

Monitoring effectiveness of comfort measures and adherence to the regimen

Monitoring patient’s blood serum levels

Ans:

299

Feedback: Nursing diagnoses related to drug therapy might include ineffective tissue perfusion if severe reaction occurs. Option B is incorrect because vaccines do not generally cause chronic pain. Options C and D are implementations, not diagnoses. 28.

A 55-year-old patient presents at the emergency department complaining of chest tightness and difficulty breathing. The patient tells the nurse he had immune sera earlier that day at the clinic. What does the nurse suspect is happening with this patient?

Delayed hypersensitivity reaction

An allergic reaction to the immune sera

Serum sickness

The response of the body to the immune sera

Ans:

B Feedback: Adverse effects can be attributed either to the effect of immune sera on the immune system (e.g., rash, nausea, vomiting, chills, fever) or to allergic reactions (e.g., chest tightness, falling blood pressure, difficulty breathing). Local reactions (e.g., swelling, tenderness, pain, muscle stiffness at the injection site) are very common. Serum sickness would manifest with fever, arthritis, flank pain, myalgia, and arthralgia.

29.

An immune compromised patient is exposed to hepatitis A virus. The physician orders an injection of immunoglobulin as prophylaxis. What adverse effects would the nurse advise the patient might occur? (Select all that apply.)

Fever

Rhinitis

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Angioedema

Severe abdominal pain

Urticaria

Ans:

A, C, E

300

Feedback: Adverse effects include tenderness, muscle stiffness at site of injection; urticaria, angioedema, nausea, vomiting, chills, fever, and chest tightness. An immune compromised patient would not be told to watch for rhinitis or severe abdominal pain because these are not anticipated adverse effects. 30.

A patient is to receive a physical examination before starting immune sera therapy. What would the nurse assess for?

Assess mental status changes

Physical characteristics

Pulse pressure

Adventitious breath sounds

Ans:

D Feedback: Perform a physical assessment to determine baseline status before beginning therapy and for any potential adverse effects; inspect for presence of any skin lesions to monitor for hypersensitivity reactions; monitor temperature to monitor for possible infection, pulse, respirations, and blood pressure; auscultate lungs for adventitious sounds; assess level of orientation and affect to monitor for hypersensitivity reactions to the vaccine.

31.

The mother of a preschool aged child brings her child to the clinic and asks what immunizations the child needs before starting school. What immunizations will the nurse expect this child needs if the child is healthy and has received immunizations on schedule in the past? (Select all that apply.)

Diphtheria and tetanus toxoids and acellular pertussis vaccine, adsorbed (DTaP)

Inactivated poliovirus vaccine (IPV)

Measles, mumps, and rubella vaccine (MMR)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Hepatitis B

Haemophilus influenzae type b vaccine (Hib)

Ans:

A, B, C

301

Feedback: The 4- to 6-year-old, preparing to enter school needs booster DTaP, IPV, MMR, influenza and varicella. High-risk groups, which does not include this child, will also need HepA and MCV. 32.

The nurse is preparing for a visit with a 4-month-old infant. What immunizations will the nurse prepare? (Select all that apply.)

Diphtheria and tetanus toxoids and acellular pertussis vaccine, adsorbed (DTaP)

Inactivated poliovirus vaccine (IPV)

Haemophilus influenzae type b vaccine (Hib)

Varicella

meningococcal

Ans:

A, B, C Feedback: At 4 months of age, the child will receive a DTaP, Hib, IPV, and PCV. Varicella vaccine is not given until the child is at least 1 year of age, and Meningococcal is usually given at age 11 to 12 years unless the patient is at high risk for development of the disease before that age.

33.

The nurse explains the purpose of vaccines is to promote what? (Select all that apply.)

Active immunity

Passive immunity

Short-term immunity

Lifetime immunity

Activation of the immune system

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Ans:

302

A, D, E Feedback: The word vaccine comes from the Latin word for smallpox, vaccinia. Vaccines are immunizations containing weakened or altered protein antigens that stimulate the formation of antibodies against a specific disease. They are used to promote active immunity that will last for a lifetime, although some patients will require smaller booster doses to maintain immunity.

34.

The mother of a 2-month-old child tells the nurse, I’ve been reading about how vaccines cause autism so I have decided not to give my child any of these vaccines. What is the nurse’s best response?

Extensive studies have found no link between the measlesmumpsrubella (MMR) vaccine and autism.

Extensive studies are being conducted and so far they have not found a link to autism.

Research has found no link between the chickenpox vaccine and autism.

Many parents agree that withholding vaccines is best and that is your choice to make.

Ans:

A Feedback: The Immunization Safety Review Committee Board of Health Promotion and Disease Prevention of the Institute of Medicine under the auspices of the Centers for Disease Control and Prevention and the National Institutes of Health have concluded that no evidence supports any linkage between the use of MMR vaccine and the development of autism. The chickenpox virus is not involved in the debate. Although it is the mother’s choice to make, many parents make an uninformed decision out of fear, so it is important for the nurse to provide the necessary education because children who do not receive essential immunizations put the community at risk. A child who is exposed to measles and then comes in contact with a pregnant woman can cause fetal damage or death.

35.

The nurse is caring for a 35-year-old woman who came to her gynecologist today to receive a Gardasil injection. The patient says she is sexually active since age 14, admitting to more than 10 sexual partners, and has used oral birth control as a contraceptive because I don’t like using barrier methods. The provider tells the patient she is not a good candidate for the injection and the patient asks the nurse why. What is the nurse’s best response?

Gardasil is only given to women between the ages of 9 and 26 years of age.

The drug is only effective if administered before exposure to human papillomavirus (HPV).

The drug cannot be administered to a woman who is sexually active.

The drug cannot be administered until further Food and Drug Administration (FDA) testing has

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303

been completed. Ans:

B Feedback: This patient is not a candidate for Gardasil primarily because she has most likely already been exposed to HPV and there would be no benefit to the injection. Gardasil is a vaccine that needs to be administered before exposure to be effective. Although the drug is normally given to women aged 9 to 26 years old, it could be given to an older person who has not become sexually active yet. Although sexual activity would not preclude administering the injection to a young girl who has had only one sexual partner, multiple partners increase the likelihood of exposure to HPV. The FDA continues to monitor testing related to the need for booster shots and the length of time the immunity remains active, as well as long-term adverse effects of the drug but the drug is available to the public by prescription.

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304

Chapter 19 - Introduction to Nerves and the Nervous System

What part of the neuron carries information into the neuron from other neurons?

Axon

Dendrite

Nucleus

Soma

Ans:

B Feedback: Dendrites carry information to the nerve and axons; they also carry information from a nerve to be transmitted to effector cells, which are found in muscles, glands, or another nerve. Soma refers to the cell body. The nucleus is the central part of a cell, which is responsible for the cell’s growth, reproduction, and metabolism.

When a neuron is stimulated and causes depolarization of the nerve, what occurs?

Calcium rushes into the cell.

Sodium rushes into the cell.

Potassium rushes into the cell.

Sodium and potassium are actively pumped out to the cell.

Ans:

B Feedback: When depolarization occurs, sodium rushes into the cell. During repolarization, potassium is pumped out of the cell and the resting membrane potential is reestablished. Calcium ions decrease the cell membranes’ permeability to sodium and increase the threshold needed to depolarize the cell.

What neurotransmitter inhibits overexcitability and is important in preventing seizure activity in a patient? Acetylcholine

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Dopamine

Gamma-aminobutyric acid (GABA)

Serotonin

Ans:

305

Feedback: GABA is found in the brain and inhibits nerve activity. It is important in preventing overexcitability or stimulation such as seizure activity. Acetylcholine communicates between nerves and muscles. Dopamine is involved in the coordination of impulses and responses, both motor and intellectual. Serotonin is found in the limbic system and is important in arousal and sleep as well as in preventing depression and promoting motivation. 4.

The nurse is caring for a patient who has an injured hindbrain. What would the nurse expect to find altered when assessing the patient?

Arousal and awareness

Basic vital functions

Coordination and motor activity

Learning and motivation

Ans:

B Feedback: The hindbrain contains centers that control basic vital functions (e.g., blood pressure, respirations, vomiting). The reticular activating system in the medulla controls arousal and awareness. Learning and motivation occur in the cerebral cortex. Coordination and motor activity are controlled through the cerebellum and basal ganglia.

A female patient has experienced a stroke affecting the right side of her brain. What will the nurse expect to assess in this patient?

Inability to recall the name of her best friend

Inability to state her telephone number

Inability to distinguish a spoon from a fork

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Inability to recall how to apply her makeup

Ans:

306

Feedback: The right side of the brain is the artistic side and is concerned with forms and shapes. This patient could have difficulty distinguishing the roundness of the spoon with the straight line of the top of the fork. The left side of the brain is more analytical and is concerned with names, numbers, and process. 6.

The nurse is caring for a patient with meningitis who is not responding to the prescribed antibiotic and whose condition continues to deteriorate. What rationale will the nurse give the family to explain why the antibiotic is not as effective as it was hoped?

The meninges do not have a blood supply.

The bloodbrain barrier prevents the antibiotics from crossing into the brain.

The circle of Willis redirects the antibiotic elsewhere.

The pressure in the hindbrain prevents entry into the skull.

Ans:

B Feedback: The bloodbrain barrier works to keep large molecules out of the brain and away from the nerves. Most antibiotics are protein bound and cannot pass through the bloodbrain barrier. When the infection becomes severe, the bloodbrain barrier will stop being effective and the antibiotics can pass into the brain. The brain has a unique blood supply to protect the neurons from lack of oxygen and glucose. After the bloodbrain barrier allows the antibiotic to pass through, the circle of Willis distributes the blood to the areas of need. If someone has an occluded carotid artery, which could build pressure up in the area, the circle of Willis can redirect the blood supply and provide a full blood supply to the affected areas.

An 87-year-old woman undergoes extensive surgery for an acoustic neuroma (a benign tumor of the inner ear), and 6 hours after surgery, she hemorrhages and goes into a coma. After awaking and 2 months of therapy, she is transferred to a long-term care facility. Due to damage in the midbrain, the nurse caring for the patient will expect the patient to exhibit what?

Difficulty in sleeping

Difficulty in hearing

Difficulty in distinguishing hot and cold

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Difficulty in speaking

Ans:

307

Feedback: The thalamus, located in the midbrain, is responsible for temperature control. The patient will have difficulty distinguishing hot and cold. Centers of control for sleep and hearing are found in the hindbrain and areas that control speech and communication are found in the forebrain. 8.

A nurse is caring for a patient who is having an adverse drug reaction. The patient is experiencing tremors, is unable to hold his or her head up, and is having difficulty sitting up in bed. The nurse suspects that this is due to what?

An interference with the extrapyramidal system

A faulty engram

An alteration in the reticular activating system

An interference with a neurotransmitter

Ans:

A Feedback: The extrapyramidal system coordinates unconscious motor activity that regulates control of position and posture. An engram is a reverberating circuit of action potentials that becomes a long-term, permanent memory in the presence of the proper neurotransmitters and hormones. The reticular activating system, which is located in the hindbrain, controls arousal and awareness of stimuli and contains the sleep center. A neurotransmitter is a chemical that stimulates postsynaptic cells either by exciting or by inhibiting them.

A nurse is working on a surgical unit and has several patients who require preoperative teaching. Which patient demonstrates behavior indicating this is an appropriate time to begin teaching?

A patient who is wide eyed and extremely frightened about being put to sleep

A patient who appears to be unconcerned about what is happening and wants to watch his favorite TV show

A patient who is clearing her throat several times while asking the nurse questions during their conversation and who appears to be slightly stressed

A patient who is getting up and down from the bed, talking very fast, and appears to be extremely anxious

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Ans:

308

C Feedback: Several substances appear to affect learning. Antidiuretic hormone (ADH), which is released during reactions to stress, is one such substance. Although too much stress prevents learning, feeling slightly stressed may increase a person’s ability to learn. A patient who is a little nervous about upcoming surgery, for example, seems to display a better mastery of facts about the surgery and postoperative procedures than a patient who is very stressed and scared or one who appears to show no interest or concern.

10.

The nursing instructor explains the limbic system contains what neurotransmitters?

Acetylcholine, epinephrine, and serotonin

Gamma-aminobutyric acid, dopamine, and serotonin

Epinephrine, dopamine, and gamma-aminobutyric acid

Epinephrine, norepinephrine, and serotonin

Ans:

D Feedback: The limbic system contains high levels of epinephrine, norepinephrine, and serotonin. Dopamine, acetylcholine, and gamma-aminobutyric acid are found in the brain but not primarily in the limbic system. Options A, B, and C are incorrect.

11.

The anatomy and physiology instructor is discussing neurotransmitters with the prenursing anatomy and physiology class. What neurotransmitter would the instructor tell the students is a catecholamine classified as a hormone when it is released from the adrenal medulla?

Ephedrine

Norepinephrine

Dopamine

Acetylcholine

Ans:

B Feedback:

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309

Norepinephrine and epinephrine are catecholamines, which are released by nerves in the sympathetic branch of the autonomic nervous system and are classified as hormones when they are released from cells in the adrenal medulla. Therefore, options A, C, and D are incorrect. 12.

A 46-year-old male patient sustained a closed-head injury 4 hours ago. He presents to the emergency department with difficulty breathing. What area of the brain does the nurse suspect is injured based on the patient’s symptoms?

Thalamus

Cerebrum

Pituitary

Medulla oblongata

Ans:

D Feedback: The hindbrain, which runs from the top of the spinal cord into the midbrain, is the most primitive area of the brain and contains the brainstem, where the pons and medulla oblongata are located. This area of the brain controls basic vital functions such as the respiratory centers, which control breathing; the cardiovascular centers, which regulate blood pressure; the chemoreceptor trigger zone and emetic zone, which control vomiting; the swallowing center, which coordinates the complex swallowing reflex; and the reticular activating system (RAS), which controls arousal and awareness of stimuli and contains the sleep center. The midbrain contains the thalamus and hypothalamus and the limbic system that transfer sensations into the cerebrum and control temperature. The pituitary gland is known as the master gland, controlling other glands with hormones secreted here.

13.

The physiology instructor is discussing the limbic system. What would the instructor say occurs with stimulation of this area?

Intelligence

Heart rate

Mood

Reflexes

Ans:

C Feedback: The limbic system is an area of the brain that contains high levels of three neurotransmitters: epinephrine, norepinephrine, and serotonin. Stimulation of this area appears to be responsible for the

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310

expression of emotions (e.g., anger, pleasure, motivation, stress). 14.

The nursing instructor is talking about neurotransmitters, including which of these chemicals?

Calcium ion

Acetylcholinesterase

Acetylcholine

Monoamine oxidase

Ans:

C Feedback: The cholinergic system uses acetylcholine as its neurotransmitter. A calcium ion is an electrolyte circulating in the serum. Acetylcholinesterase is an enzyme that breaks down acetylcholine. Monoamine oxidase is an enzyme that breaks down the neurotransmitter norepinephrine.

15.

What would a nurse describe to a peer as a factor in increasing synaptic transmission?

Enzymes

Electrical impulse

Calcium reaction

Neurotransmitter

Ans:

D Feedback: The nerve axon, called the presynaptic nerve, releases a chemical called a neurotransmitter into the synaptic cleft; the neurotransmitter reacts with a very specific receptor site on the postsynaptic cell to cause a reaction that increases synaptic transmission. Enzymes break down the neurotransmitter. The synaptic transmission is an electrical impulse. Calcium is an electrolyte but does not increase synaptic transmission.

16. A)

Which neurotransmitter communicates between nerves and muscles? Acetylcholine

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Dopamine

Gamma-aminobutyric acid (GABA)

Serotonin

Ans:

311

Feedback: Acetylcholine, which communicates between nerves and muscles, is also important as the preganglionic neurotransmitter throughout the autonomic nervous system and as the postganglionic neurotransmitter in the parasympathetic nervous system and in several pathways in the brain. Dopamine is involved in the coordination of impulses and responses, both motor and intellectual. GABA inhibits nerve activity. Serotonin is important in arousal and sleep. 17.

While discussing the central nervous system (CNS), the nursing instructor tells the students that the major inhibitory neurotransmitter in the CNS is what?

Acetylcholine

Dopamine

Gamma-aminobutyric acid (GABA)

Serotonin

Ans:

C Feedback: GABA, which is found in the brain, inhibits nerve activity and is important in preventing overexcitability or stimulation such as seizure activity. Acetylcholine, which communicates between nerves and muscles, is also important as the preganglionic neurotransmitter throughout the autonomic nervous system and as the postganglionic neurotransmitter in the parasympathetic nervous system and in several pathways in the brain. Dopamine is involved in the coordination of impulses and responses, both motor and intellectual. Acetylcholine, dopamine, and serotonin are not the major inhibitory neurotransmitter in the CNS. Serotonin is important in arousal and sleep.

18.

The anatomy and physiology instructor discusses the thalamus with the nursing class. The instructor tells the students that the thalamus does what?

Relays motor impulses from the cortex to the spinal cord

Is responsible for voluntary movement

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Sends information into the cerebrum to transfer sensations

Helps maintain red blood cell (RBC) production

Ans:

312

Feedback: The thalamus sends direct information into the cerebrum to transfer sensations, such as cold, heat, pain, touch, and muscle sense. Motor fibers from the cortex cross to the other side of the spinal cord before emerging to interact with peripheral effectors. In this way, motor stimuli coming from the right side of the brain affect motor activity on the left side of the body. The limbic system is not responsible for voluntary movement or RBC production. 19.

Neurotransmission is important in the function of the central nervous system (CNS). For neurotransmission to occur, how do neurons communicate with other cells?

Selectively

Chemically

Excitably

Accessibly

Ans:

B Feedback: The transmission of information between two nerves or between a nerve and a gland or muscle is chemical. Options A, C, and D are incorrect.

20.

Two nursing students are giving an oral presentation on the forebrain. What information will they include about this area? (Select all that apply.)

Coordinates speech and communication

Area where learning takes place

Houses the extrapyramidal motor system

Cranial nerves emerge from here.

The swallowing center is here.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

313

A, B, C Feedback: The forebrain is made up of two cerebral hemispheres joined together by the corpus callosum. The two hemispheres contain the sensory and motor neurons. It also contains areas that coordinate speech and communication and is thought to be where learning takes place. Cranial nerves emerge from the hindbrain, which is where the swallowing center is located as well.

21.

A student asks the anatomy and physiology instructor to explain the two hemispheres of the brain and what they regulate. What statement, if made by the instructor, is accurate?

The hemispheres regulate the electrical conduction system of the brain.

The hemispheres regulate the afferent conduction system.

The hemispheres regulate the efferent conduction system.

The hemispheres regulate communication between sensory and motor neurons.

Ans:

D Feedback: The cerebral cortex consists of two hemispheres, which regulate the communication between sensory and motor neurons and are the sites of thinking and learning. Options A, B, and C are incorrect.

22.

While diagramming the brain for their anatomy and physiology class, the nursing students would place the swallowing center where?

Hindbrain

Right hemisphere

Forebrain

Left hemisphere

Ans:

A Feedback: The pons and medulla oblongata are in the hindbrain and control basic, vital functions, such as the respiratory centers, which control breathing; the cardiovascular centers, which regulate blood pressure; the chemoreceptor trigger zone and emetic zone, which control vomiting; and the swallowing center,

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314

which coordinates the complex swallowing reflex. Therefore, options B, C, and D are incorrect. 23.

As the nursing students learn about the functioning of the nervous system, they learn that the energy required by the nerves is provided by what?

Dopamine and electricity

Oxygen and glucose

Sodium and potassium

Acetylcholine and serotonin

Ans:

B Feedback: Nerves require energy (i.e., oxygen and glucose) and the correct balance of the electrolytes sodium and potassium to maintain normal action potentials and transmit information into and out of the nervous system. Energy required by the nerves is not provided by dopamine, electricity, acetylcholine, or serotonin.

24.

The nursing instructor is teaching the new nursing students about patient teaching. Where in the brain would the instructor tell the student nurses is the area where learning takes place?

The area that coordinates sensation

The area that coordinates movement

The areas that coordinate speech and communication

The areas that communicate between motor and sensory neurons

Ans:

C Feedback: The forebrain is made up of two cerebral hemispheres that contain areas that coordinate speech and communication and are thought to be the area where learning takes place.

25. A)

When a person learns, this action begins as an electrical circuit called what? Impulse

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Synapse

Memory

Engram

Ans:

315

Feedback: Learning begins as an electrical circuit called an engram, a reverberating circuit of action potentials that eventually becomes a long-term, permanent memory in the presence of the proper neurotransmitters and hormones. 26.

The physiology instructor explains to the students that some substances increase actual learning. What is one of these substances?

Oxytocin

Acetylcholine

Serotonin

Dopamine

Ans:

A Feedback: Oxytocin and mild stress act to increase actual learning. Childbirth is the only time that oxytocin levels increase and this phenomenon is not clearly understood. Acetylcholine, serotonin, and dopamine do not increase actual learning; they function as neurotransmitters.

27.

The sensory nerves enter the brain and react with related nerves to cause a reaction. What mediates this reaction?

Muscles or glands

The limbic system

The cerebral cortex

Neurotransmitters

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Ans:

316

A Feedback: The sensory nerves that enter the brain react with related motor nerves to cause a reaction mediated by muscles or glands. The motor impulses that leave the cortex are further regulated or coordinated by the pyramidal system, which coordinates voluntary movement, and the extrapyramidal system, which coordinates unconscious motor activity that regulates control of position and posture. Therefore, the other options are incorrect.

28.

What brings information from the central nervous system (CNS) to the peripheral nervous system (PNS)?

Motor nerves

Synapses

Afferent neurons

Sensory nerves

Ans:

D Feedback: The PNS is composed of sensory receptors that bring information into the CNS and motor nerves that carry information away from the CNS to facilitate response to stimuli. Synapses are the gaps between neurons. Afferent fibers are nerve axons that run from the peripheral receptors into the CNS.

29.

The student nurses are learning about the nervous system. What would the students learn are capable of conducting along the entire membrane of the nerve?

Action potentials

Engrams

Chemical synapses

Sodiumpotassium channels

Ans:

A Feedback: Nerve membranes, which are capable of conducting action potentials along the entire membrane, send

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317

messages to nearby neurons or to effector cells that may be located inches to feet away via this electrical communication system. Other options are incorrect. 30.

A patient who nearly drowned is brought to the emergency department. The paramedics tell the nurse the patient was anoxic for approximately 5 minutes. Because of this anoxia, what might happen to the nerve cells?

The nerves might not be able to repolarize.

The nerves might not be able to depolarize.

The nerves might not be able to maintain the sodiumpotassium pump.

The nerves might not be able to maintain their action potential.

Ans:

C Feedback: If a person has anoxia or hypoglycemia, the nerves might not be able to maintain the sodiumpotassium pump, and with continued lack of oxygen and/or glucose, the nerve cell will die. Other options are incorrect.

31.

What is the purpose of the myelin sheath?

Protects the nerve from damage

Speeds electrical conduction

Produces Schwann cells

Secretes neurotransmitters

Ans:

B Feedback: Long nerves are myelinated: They have a myelin sheath that speeds electrical conduction and protects the nerves from the fatigue that results from frequent formation of action potentials, not from damage. Although myelin sheaths have Schwann cells, they do not produce these cells and the myelin sheath does not secrete neurotransmitters.

32.

The patient is diagnosed with myasthenia gravis, a condition in which antibodies block, alter, or destroy the receptors for acetylcholine. What symptom would the nurse expect this patient to display?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Muscle dysfunction

Seizures

Uncoordinated movements

Sleep all the time

Ans:

318

Feedback: Acetylcholine communicates between nerves and muscles so inability of this neurotransmitter to function properly, whether blocking, altering, or destroying the receptors, would result in muscle dysfunction. Inadequate gamma-aminobutyric acid would result in seizures. Inadequate dopamine would result tin uncoordinated movements. Serotonin is important in arousal and sleep. 33.

The nurse is caring for a patient with a malignant brain tumor. The patient asks the nurse why the tumor is being treated with radiation instead of chemotherapy. The nurse’s explanation involves what important information?

Medications have difficulty crossing the bloodbrain barrier.

Neurons in the brain are easily damaged by chemotherapy.

Tumors arising from nervous tissue are not impacted by chemotherapy.

Chemotherapy reduces nerve transmission and cannot be used.

Ans:

A Feedback: The bloodbrain barrier is a functioning boundary that plays a defensive role by keeping toxins, proteins, and other large structures out of the brain and preventing their contact with the sensitive and fragile neurons. As a result, medications like chemotherapy can have difficulty crossing this barrier to reach the tumor. The other answers are neither true nor the correct option.

34.

The nurse is caring for a patient whose recent ultrasound of the carotids diagnosed a 90% occlusion of the right carotid artery and a 92% occlusion of the left carotid artery. The patient asks the nurse, If one of these arteries becomes completely occluded will I have a stroke? What is the nurse’s best response?

A common vessel receiving all blood to the head called the circle of Willis will distribute blood from other arteries to the brain as needed.

A stroke is caused by lack of blood supply to a part of the brain so if your right carotid artery

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becomes blocked you’ll have a stroke on the right side of your brain. C)

It is hard to predict exactly what will happen so you’ll have to wait until your provider sees you because only the provider can answer that question.

With only 10% of the blood needed getting through your right artery and 8% through your left artery, you could have a stroke now.

Ans:

A Feedback: All the arteries that supply blood to the head deliver blood to a common vessel at the bottom of the brain called the circle of Willis, which distributes the blood to the brain when it is needed. The role of the circle of Willis becomes apparent when someone has an occluded carotid artery. Although the passage of blood through one of the carotid arteries may be negligible, the areas of the brain on that side will still have a full blood supply because of the blood sent to those areas through the circle of Willis. All other options are incorrect.

35.

The nurse is caring for a patient whose emotions often swing from one extreme to the other. The patient’s spouse tells the nurse these mood swings started when the patient awoke from a coma following a serious head trauma. What area of the brain does the nurse suspect was damaged?

The limbic system

The forebrain

The hindbrain

The cerebellum

Ans:

A Feedback: Stimulation of the limbic system, which appears to be responsible for the expression of emotions, may lead to anger, pleasure, motivation, and stress. The forebrain is where thinking and coordination of sensory and motor activity occur. The hindbrain controls vital functions and arousal. The cerebellum controls motor functions that regulate balance.

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Chapter 20 - Anxiolytic and Hypnotic Agents

The nurse is caring for a patient in a state of hypnosis, which means the patient is in what state?

A state of extreme sedation in which the person no longer senses or reacts to incoming stimuli.

A state of tranquility in which the person can be made to do whatever is suggested by others.

A feeling of tension, nervousness, apprehension, or fear with high levels of awareness.

A state in which the brain is no longer sending out signals to the body.

Ans:

A Feedback: Hypnosis is an extreme state of sedation in which the person no longer senses or reacts to incoming stimuli. A state of tranquility is produced through minor tranquilizers by decreasing anxiety. Anxiety is a feeling of tension, nervousness, apprehension, or fear. Sedation is the loss of awareness and reaction to environmental stimuli, which may lead to drowsiness. The state of suggestibility often seen in television programs is not an appropriate definition of hypnosis. If the brain stopped sending signals, the patient would stop breathing and death would follow.

A nurse is caring for a 4-year-old child who is receiving a barbiturate. What common adverse effect would the nurse assess for?

Decrease in respirations

Vomiting

Excitability

Dry mucous membranes

Ans:

C Feedback: The barbiturates, being older drugs, have established pediatric dosages. These drugs must be used with caution because of the often unexpected responses. Children must be monitored very closely for central nervous system (CNS) depression and excitability. The most common adverse effects are related to general CNS depression. Other CNS effects may include drowsiness, somnolence, lethargy, ataxia, vertigo, a feeling of a hangover, thinking abnormalities, paradoxical excitement, anxiety, and hallucinations. Alteration in respirations and dried mucous membranes are adverse effects of

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antihistamines, which can be given to calm children or induce sleep. Vomiting could occur with the use of paraldehyde due to the unpleasant taste and odor of the drug. 3.

A nurse is caring for a 9-year-old patient and has received an order for diazepam (Valium) 10 mg given orally q.i.d. What is the nurse’s priority action?

Perform hand hygiene and prepare the drug.

Send the order to the hospital pharmacy.

Determine when to administer the first dose.

Call the physician and question the order.

Ans:

D Feedback: The first action of the nurse would be to call the physician and question the order. The normal oral dosage for a pediatric patient is 1 to 2.5 mg t.i.d. or q.i.d. The ordered dose would be unsafe for this patient. If the dosage was changed and the correct amount administered, the nurse would order the medication from the pharmacy if necessary and determine what time to start the medication. She would then wash her hands in preparation for administering the medication, but not until obtaining an appropriate dosage of medication.

A nurse is discussing the use of alprazolam (Xanax) with a 68-year-old patient. What statement indicates that the patient has an understanding of the drug?

When I stop having panic attacks, I can stop taking the drug.

This drug will calm me down in about 30 minutes after I take it.

One dose will keep me calm for about 24 hours.

I am taking an increased dose because of my age.

Ans:

B Feedback: The onset of alprazolam is about 30 minutes. The drug must be tapered after long-term use and the duration is approximately 4 to 6 hours. Elderly patients usually have a reduced dosage.

A nurse is about to administer a parenteral benzodiazepine to a female patient in the hospital before the performance of a procedure. What is the priority nursing action before administration of the drug?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Make sure that the side rails are up and the bed is in the lowest position.

Close the blinds and ensure appropriate room temperature for the patient.

Help the patient out of bed to the bathroom and encourage her to void.

Ask all visitors to leave the room and remain in the waiting area.

Ans:

322

Feedback: The priority action would be to help the patient up to void. After the medication is administered the patient should not get out of bed because of possibly injury due to drowsiness. Safety should always be the priority concern. After administration of the drug the nurse would ask visitors to leave before beginning the procedure, make the room conducive to rest and sleep, and make sure that both side rails are up and the bed is in the lowest position. 6.

The nurse is caring for a 36-year-old man who experienced a seizure 30 minutes before coming into the emergency room, where he begins to have another. What barbiturate has the fastest onset and would be most appropriate to give to the patient to quickly stop the seizure?

Amobarbital (Amytal Sodium)

Mephobarbital (Mebaral)

Phenobarbital (Luminal)

Secobarbital (Seconal)

Ans:

C Feedback: Phenobarbital’s onset is between 10 and 60 minutes, depending on the route administered, and most likely this would be given to the patient. Amobarbital is given for convulsions and the onset is between 15 and 60 minutes. Mephobarbital’s onset is between 30 and 60 minutes. Secobarbital is given for convulsive seizures of tetanus and has an onset of 1 to 4 hours.

What anxiolytic drugs would be given to a premenopausal patient who is a registered nurse planning to return to work at the hospital after anxiety is controlled?

Alprazolam (Xanax)

Buspirone (BuSpar)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Diazepam (Valium)

Clorazepate (Tranxene)

Ans:

323

Feedback: Buspirone is a newer anxiolytic drug that does not cause sedation or muscle relaxation. It is preferred when the patient needs to be alert such as when driving or working. Alprazolam, diazepam, and clorazepate are benzodiazepines, which cause drowsiness, sedation, depression, lethargy, confusion, and decreased mental alertness. It would be unsafe for a nurse to function in her role while taking one of these drugs. 8.

A patient arrives at the emergency room after attempting suicide by taking an entire bottle of diazepam. What antidote will the nurse most likely administer?

Phenobarbital (Luminal)

Dexmedetomidine (Precedex)

Flumazenil (Romazicon)

Ramelteon (Rozerem)

Ans:

C Feedback: Flumazenil is an antidote to benzodiazepine overdose and is administered to reverse the effects of benzodiazepines when used for anesthesia. Phenobarbital, a barbiturate, would further depress the body functions of this patient. Dexmedetomidine is a new hypnotic drug used in the intensive care unit for mechanically ventilated patients. Ramelteon is also new; it is used as a hypnotic. Adverse effects of this drug include depression and suicidal ideation.

The nurse is caring for a resident in a long-term care facility who is African American with a history of an anxiety disorder. The patient is receiving oral lorazepam (Ativan) 2 mg t.i.d. When developing this patient’s plan of care, what priority assessment will the nurse include?

Depression

Extreme sedation

Phlebitis

Nightmares

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Ans:

324

B Feedback: Special care should be taken when anxiolytic or hypnotic drugs are given to African Americans. About 15% to 20% of African Americans are genetically predisposed to delayed metabolism of benzodiazepines. As a result, they may develop high serum levels of these drugs, with increased sedation and an increased incidence of adverse effects. Depression is not a common adverse effect. Phlebitis can occur at injection sites but this patient is taking the medication orally. Nightmares occur during drug withdrawal.

10.

An elderly patient has been taking zolpidem (Ambien) as a sleep aid for the past 2 months. On admission to the assisted-living facility, it is determined that the drug is no longer needed. What is an important nursing consideration concerning this drug?

Hallucinations are common.

The drug needs to be withdrawn gradually.

Another anxiolytic will need to be substituted.

Sundowning is common with withdrawal from this drug.

Ans:

B Feedback: It is important for the nurse to understand that zolpidem must be withdrawn gradually over a 2-week period after prolonged use. If chloral hydrate is stopped suddenly, it will result in serious adverse effects. Hallucinations and sundowning are not common with withdrawal of the drug. The prescriber and the patient would determine the need for chloral hydrate to be substituted for another anxiolytic.

11.

Why would the nurse expect the patient with liver disease to receive a smaller dose of benzodiazepines?

Excretion of the drug relies on liver function.

The drugs are metabolized extensively in the liver.

They are lipid soluble and well distributed throughout the body.

The drugs are well absorbed from the gastrointestinal tract.

Ans:

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Feedback: The benzodiazepines are metabolized extensively in the liver. Patients with liver disease must receive a smaller dose and be monitored closely. Excretion is primarily through the urine. All of the answer options are true, but only the fact that the benzodiazepines are metabolized in the liver explains why a patient with liver disease would require smaller dosages. 12.

When compared with benzodiazepines, buspirone (BuSpar) stands out as unique among antianxiety drugs because of what factor?

Increases the central nervous system (CNS) depression of alcohol and other drugs.

Lacks muscle relaxant and anticonvulsant effects.

Causes significant physical and psychological dependence.

Rapidly absorbed from the gastrointestinal (GI) tract and metabolized in the liver.

Ans:

B Feedback: Buspirone, a newer antianxiety agent, has no sedative, anticonvulsant, or muscle-relaxant properties, and its mechanism of action is unknown. However, it reduces the signs and symptoms of anxiety without many of the central nervous system effects and severe adverse effects associated with other anxiolytic drugs. Most of the antianxiety drugs are rapidly absorbed from the GI tract, metabolized in the liver, have a significant drugdrug interaction with alcohol and other drugs, and can result in psychological dependence.

13.

What would the nurse assess for when benzodiazepines are abruptly stopped?

Urinary retention and change in sexual functioning

Dry mouth, constipation, nausea, and vomiting

Nausea, headache, vertigo, malaise, and nightmares

In most cases nothing significant

Ans:

C Feedback: Abrupt cessation of these drugs may lead to a withdrawal syndrome characterized by nausea, headache, vertigo, malaise, and nightmares. When benzodiazepines are stopped abruptly the likelihood of withdrawal symptoms increases with the length of time the patient took the medication. Urinary

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retention, change in sexual functioning, dry mouth, constipation, nausea, and vomiting are all common adverse effects of the medications classified as benzodiazepines. 14.

The nurse is caring for a patient in intensive care unit receiving IV lorazepam (Ativan) to reduce anxiety related to mechanical ventilation. While injecting the medication the nurse notes a decrease in blood pressure and bradycardia. What is the nurse’s priority action?

Discontinue drug administration.

Give the IV drug more slowly.

Notify the patient’s health care provider.

Document the reaction to the drug.

Ans:

B Feedback: The nurse’s priority action is to slow the rate of injection because rapid injection of benzodiazepines can result in hypotension and bradycardia and can lead to cardiac arrest.

15.

For what purpose would the nurse choose to administer a hypnotic instead of another classification of antianxiety drug?

Treating insomnia

Treating seizure disorder

Treating panic attach

Treating confusion and agitation

Ans:

D Feedback: Hypnotics are used to help people fall asleep by causing sedation. Drugs that are effective hypnotics act on the reticular activating system (RAS) and block the brain’s response to incoming stimuli. Hypnotics would not be the most effective drugs to treat seizure disorders, panic attack, or confusion with agitation.

16.

The nurse assesses the patient who had an abrupt withdrawal of benzodiazepines for withdrawal syndrome and would recognize what symptoms as part of the syndrome? (Select all that apply.)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Headache

Nightmares

Malaise

Bradycardia

Hypotension

Ans:

A, B, C

327

Feedback: Abrupt cessation of benzodiazepines may lead to a withdrawal syndrome characterized by nausea, headache, vertigo, malaise, and nightmares. Withdrawal symptoms may be caused by the abrupt separation of benzodiazepine molecules from their receptor sites and the resulting acute decrease in gamma-aminobutyric acid (GABA) neurotransmission. Because GABA is an inhibitory neurotransmitter, less GABA may produce a less inhibited central nervous system (CNS) and therefore symptoms of hyperarousal or CNS stimulation. The nurse would not categorize hypotension or bradycardia as indicating benzodiazepine withdrawal. 17.

A 75-year-old patient is brought to the emergency department by his family. The family relates that the patient is complaining of confusion, seizures, and abnormal perception of movement. The nurse reviews all of the medication bottles found in the house and suspects the patient overdosed on what medication?

Benzodiazepine

Antihypertensive

Sedative

Analgesic

Ans:

A Feedback: Common manifestations of benzodiazepine toxicity include increased anxiety, psychomotor agitation, insomnia, irritability, headache, tremor, and palpitations. Less common but more serious manifestations include confusion, abnormal perception of movement, depersonalization, psychosis, and seizures. These symptoms are not found in association with options B, C, or D.

18.

The nurse is caring for a patient who experiences anxiety and insomnia and is prescribed benzodiazepines. When developing the plan of care, what would be an appropriate nursing diagnosis related to potential adverse effects of the drug?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Provide patient teaching about drug therapy.

Anxiety related to drug therapy.

Risk for injury related to central nervous system (CNS) effects.

Avoid preventable adverse effects, including abuse and dependence.

Ans:

328

Feedback: The most appropriate nursing diagnosis related to adverse effects of the drug is risk for injury related to CNS effects because benzodiazepines can have many CNS adverse effects. Anxiety is the condition for which drug therapy is prescribed not related to drug therapy. Patient teaching and avoiding adverse effects are interventions and not nursing diagnoses. 19.

A patient is being discharged home from the hospital after receiving treatment for pneumonia. The patient is going home and continuing to take the same drugs he or she was taking before he or she was hospitalized. These drugs include an antianxiety medication and a medication for insomnia. The home care nurse is following this patient. On the initial visit what is the nurse’s priority teaching point?

The names and purposes of medications prescribed

How to contact the provider if needed

The importance of taking medications for insomnia only occasionally

Warning signs that may indicate serious adverse effects

Ans:

D Feedback: The home care nurse should provide thorough patient teaching, with a priority teaching point being the warning signs the patient may experience that indicate a serious adverse effect. Although this may have been discussed by the discharging nurse in the hospital, this is essential information for the patient to thoroughly understand. By the time the home care nurse visits, the patient should already have filled the prescriptions and know the names and purposes of the medications prescribed from the hospital nurse but it is a good idea to review this information, although it is not a priority. Medications for insomnia should be taken as prescribed. The patient should have received the provider’s contact information when leaving the hospital but the home care nurse may need to review this, even though it is not the priority teaching point.

20.

Hypnotic drugs are used to aid people in falling asleep. What physiological system does a hypnotic act on to be effective in helping a patient to sleep?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Limbic system

Sympathetic nervous system

Reticular activating system

Lymph system

Ans:

329

Feedback: Hypnotics are used to help people fall asleep by causing sedation. Drugs that are effective hypnotics act on the reticular activating system and block the brain’s response to incoming stimuli. Hypnosis, therefore, is the extreme state of sedation, in which the person no longer senses or reacts to incoming stimuli. The other options are incorrect. 21.

A patient presents at the emergency department with respiratory depression and excessive sedation. The family tells the nurse that the patient has been taking medication throughout the evening and gives the nurse an almost empty bottle of benzodiazepines. What other adverse effects would the nurse assess this patient for?

Seizures

Tachycardia

Headache

Coma

Ans:

D Feedback: Toxic effects of benzodiazepines include excessive sedation, respiratory depression, and coma. Flumazenil (Anexate) is a specific antidote that competes with benzodiazepines for benzodiazepine receptors and reverses toxicity. Seizures, tachycardia, and headache would not normally be associated with benzodiazepine toxicity.

22.

A patient presents at the free clinic complaining of nervousness, worrying about everything, and feeling very tense. What diagnose would the nurse suspect? Neurosis

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Psychosis

Anxiety

Depression

Ans:

330

Feedback: Anxiety is a common disorder that may be referred to as nervousness, tension, worry, or using other terms that denote an unpleasant feeling. The other options would not be described by these symptoms. 23.

The nurse is caring for a patient who is taking a benzodiazepine. The nurse knows that caution should be used when administering a benzodiazepine to the elderly because of what possible adverse effect?

Acute renal failure

Unpredictable reactions

Paranoia

Hallucinations

Ans:

B Feedback: Use benzodiazepines with caution in elderly or debilitated patients because of the possibility of unpredictable reactions and in patients with renal or hepatic dysfunction, which may alter the metabolism and excretion of these drugs, resulting in direct toxicity. Dosage adjustments usually are needed for such patients. Acute renal failure, paranoia, and hallucinations are not commonly related to therapy with these medications in the elderly.

24.

A 72-year-old patient presents at the emergency department with respiratory depression and excessive sedation. The family tells the nurse that the patient has been taking medication throughout the evening. The nurse suspects benzodiazepine overdose and would expect what drug to be ordered?

Valium

Phenergan

Hydroxyzine

Flumazenil

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Ans:

331

D Feedback: Toxic effects of benzodiazepines include excessive sedation, respiratory depression, and coma. Flumazenil is an antidote for the benzodiazepines. Hydroxyzine is an antihistamine with anticholinergic effects and would not be appropriate for this patient. Valium would enhance the effects of benzodiazepines. Phenergan is not indicated for this patient; it is similar in actions to hydroxyzine.

25.

The nurse is caring for a patient who has not been able to sleep. The physician orders a barbiturate medication for this patient. What adverse effect should the nurse teach the patient about?

Double vision

Paranoia

Tinnitus

Thinking abnormalities

Ans:

D Feedback: The most common adverse effects are related to general central nervous system (CNS) depression. CNS effects may include drowsiness, somnolence, lethargy, ataxia, vertigo, a resembling a hangover, thinking abnormalities, paradoxical excitement, anxiety, and hallucinations. Barbiturate drugs generally do not cause double vision, paranoia, or tinnitus.

26.

An older adult African American patient comes to the clinic and is diagnosed with generalized anxiety disorder (GAD). The physician orders oral flurazepam 30 mg. What is the nurse’s priority action?

Teach the patient about the prescribed medication.

Administer the first dose of medication.

Tell patient to take first dosage after driving home.

Talk to the physician about the dosage.

Ans:

D Feedback:

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If an anxiolytic or hypnotic agent is the drug of choice for an African American patient, the smallest possible dose should be used, and the patient should be monitored very closely during the first week of treatment. Dosage adjustments are necessary to achieve the most effective dose with the fewest adverse effects. In addition, older adults also require careful titration of dosage. Older patients may be more susceptible to the adverse effects of these drugs, from unanticipated central nervous system (CNS) adverse effects including increased sedation, dizziness, and even hallucinations. Dosages of all of these drugs should be reduced and the patient should be monitored very closely for toxic effects and to provide safety measures if CNS effects do occur. As a result, the priority action is to talk to the physician about the dosage. The other actions may be appropriate after a proper dosage is ordered. 27.

The nurse is caring for a patient who has a sedative hypnotic ordered. The nurse would consider this drug contraindicated if the patient had what disorder?

Neurological diseases

Liver failure

Endocrine disorders

Heart disease

Ans:

B Feedback: Benzodiazepines undergo extensive hepatic metabolism. In the presence of liver disease, the metabolism of most benzodiazepines is slowed, with resultant accumulation and increased risk of adverse effects. Neurological disorders, endocrine disorders, and heart disease are not contraindications for the use of benzodiazepines.

28.

The nurse evaluates teaching as effective when a patient taking a benzodiazepine states,

I should always take the medication with meals.

I should not stop taking this drug without talking to my health care provider first.

I cannot take aspirin with this medication.

I will have to take this medication for the rest of my life.

Ans:

B Feedback: The patient makes a correct statement when saying the drug should not be stopped without talking to the health care provider first because withdrawal of benzodiazepines require careful monitoring and should be gradually withdrawn. Medications do not have to be taken with food, aspirin is not

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contraindicated, and the medication need only be taken while the condition being treated continues. Patients with anxiety may only need the medication for a few weeks whereas those with a seizure disorder may take it for longer periods of time. 29.

The nurse is caring for a patient treated with flumazenil (Anexate) for benzodiazepine toxicity. After administering flumazenil what will the nurse carefully assess for?

Agitation, confusion, and seizures

Cerebral hemorrhage and dystonia

Hypertension and renal insufficiency

Hypotension, dysrhythmias, and cardiac arrest

Ans:

A Feedback: Administration of flumazenil blocks the action of benzodiazepines. If the patient has been taking these medications for an extended period of time, the blockage of the drug’s effects could precipitate an acute benzodiazepine withdrawal syndrome with symptoms including agitation, confusion, and seizures. Anexate does not cause cerebral hemorrhage and dystonia, hypertension, renal insufficiency, hypotension, dysrhythmias, and cardiac arrest.

30.

The nurse administers promethazine (Phenergan) to the patient before sending the patient to the preoperative holding area. What is the rationale for administration of this drug?

Sedation

Oral secretions

Hypotension and bradycardia

Confusion

Ans:

A Feedback: Antihistamines (promethazine, diphenhydramine [Benadryl]) can be very sedating in some people. They are used as preoperative medications and postoperatively to decrease the need for narcotics. Promethazine is not given for hypotension, bradycardia, confusion, or oral secretions.

31.

What reasons can the nurse give for why barbiturates are no longer considered the mainstay for treatment of anxiety? (Select all that apply.)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Adverse effects are more severe.

There is an increased risk of physical tolerance.

There is an increased risk of psychological dependence.

The most common adverse effects are related to cardiac arrhythmias.

Hypersensitivity reactions can sometimes be fatal.

Ans:

A, B, C, E

334

Feedback: The adverse effects caused by barbiturates are more severe than those associated with other, newer sedatives/hypnotics. For this reason, barbiturates are no longer considered the mainstay for the treatment of anxiety. In addition, the development of physical tolerance and psychological dependence is more likely with the barbiturates than with other anxiolytics. The most common adverse effects are related to central nervous system (CNS) depression. Hypersensitivity reactions to barbiturates are sometimes fatal. 32.

The nurse is teaching a class for nurses working in prenatal clinics about the danger associated with use of benzodiazepines during pregnancy and explains that what fetal anomalies result from maternal use of benzodiazepines during the first trimester of pregnancy? (Select all that apply.)

Cleft lip or palate

Inguinal hernia

Cardiac defects

Microencephaly

Gastroschises

Ans:

A, B, C, D Feedback: Benzodiazepines are contraindicated in pregnancy because a predictable syndrome of cleft lip or palate, inguinal hernia, cardiac defects, microcephaly, or pyloric stenosis occurs when they are taken in the first trimester. Gastroschises, when the abdominal organs are found outside the abdominal cavity, is not associated with use of benzodiazepine use in the first trimester.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

33.

335

The nurse is caring for a newborn who was delivered from a woman who took benzodiazepines for anxiety during the last 2 months of her pregnancy after her husband was killed in war. What will the nurse assess for in this newborn?

Newborn withdrawal syndrome

Hepatic dysfunction

Failure to thrive

Learning deficiencies

Ans:

A Feedback: Neonatal withdrawal syndrome may result in a baby born to a mother who was taking benzodiazepines in the final weeks of pregnancy. The neonate may be given very small doses of benzodiazepines that are withdrawn gradually to prevent symptoms. Hepatic dysfunction in the neonate is not associated with use of benzodiazepines. Failure to thrive and learning deficiencies would be long-term problems and are not assessed during the neonatal period.

34.

The nurse is caring for a patient who received a new diagnosis of cancer. The patient exhibits signs of a sympathetic stress reaction. What signs and symptoms will the nurse assess in this patient consistent with an acute reaction to stress? (Select all that apply.)

Profuse sweating

Fast heart rate

Rapid breathing

Hypotension

Inability to interact with others

Ans:

A, B, C Feedback: Anxiety is often accompanied by signs and symptoms of the sympathetic stress reaction that may include sweating, fast heart rate, rapid breathing, and elevated blood pressure. Chronically anxious people may be afraid to interact with other people but this is not usually seen in an acute stress reaction.

35.

The nurse is caring for an older adult in the long-term care facility who has begun to display signs of anxiety and insomnia. What is the priority nursing action?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Assess the patient for physical problems.

Call the provider and request an antianxiety drug order.

Increase the patient’s social time, encouraging interaction with others.

Suggest the family visit more often to reduce the resident’s stress level.

Ans:

336

Feedback: The patient should be screened for physical problems, neurological deterioration, or depression, which could contribute to the insomnia or anxiety. Only after physical problems are ruled out would the nurse consider nondrug measures such as increased socialization with other residents or family members. If nothing else is effective, pharmacological intervention may be necessary.

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Chapter 21 - Antidepressant Agents

The mental health nursing instructor is talking with the class about depression. What deficiency does the instructor explain will result in depression?

Epinephrine, norepinephrine, and acetylcholine

Norepinephrine, dopamine, and serotonin

Acetylcholine, gamma-aminobutyric acid, and serotonin

Gamma-aminobutyric acid, dopamine, and epinephrine

Ans:

B Feedback: A current hypothesis regarding the cause of depression is a deficiency of norepinephrine, dopamine, or serotonin, which are all biogenic amines, in key areas of the brain. Acetylcholine is a neurotransmitter that communicates between nerves and muscles. Epinephrine is a catecholamine that serves as a neurotransmitter that is released in the sympathetic branch of the autonomic nervous system and can be hormones when released from cells in the adrenal medulla. Gamma-aminobutyric acid is a neurotransmitter that inhibits nerve activity and prevents over excitability or stimulation.

What is the physiological action of tricyclic antidepressants (TCAs)?

Inhibiting monoamine oxidase inhibitors that break down norepinephrine

Inhibiting nerve activity, which prevents over excitability or stimulation

Blocking the reuptake of serotonin, which increases the levels of norepinephrine

Inhibiting reuptake of norepinephrine and serotonin

Ans:

D Feedback: TCAs inhibit presynaptic reuptake of norepinephrine and serotonin, which cause an accumulation of the neurotransmitters that is thought to create the antidepressant effect. Monoamine oxidase inhibitors irreversibly inhibit monoamine oxidase that breaks down norepinephrine and serotonin. Selective serotonin reuptake inhibitors block the reuptake of serotonin; gamma-aminobutyric acid inhibits nerve activity.

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A nurse is working with a 9-year-old child who exhibits signs and symptoms of obsessive-compulsive disorder (OCD). What drug will the nurse anticipate may be prescribed for the child?

Phenelzine (Nardil)

Amitriptyline (Elavil)

Fluvoxamine (Prozac)

Isocarboxazid (Marplan)

Ans:

C Feedback: Fluvoxamine is a selective serotonin reuptake inhibitor that has established pediatric dosage guidelines for the treatment of obsessive-compulsive disorder. Isocarboxazid and phenelzine are monoamine oxidase inhibitors and should be avoided in pediatric use because of the potential drugfood interactions and other serious adverse effects. Amitriptyline is also a tricyclic antidepressant not recommended for pediatric use.

A patient explains to a nurse that he had been taking amitriptyline (Elavil) for depression and that his physician changed his medication to clomipramine (Anafranil). The patient is confused and does not understand why his medication was changed. The nurse’s best response to the patient would be what?

These drugs are similar but some patients respond better to one drug than another.

Did you take the amitriptyline like you should have?

Maybe the old medicine wasn’t working anymore.

Clomipramine is newer and will be much better for you.

Ans:

A Feedback: Because all tricyclic antidepressants (TCAs) are similarly effective, the choice of which TCA depends on individual response to the drug and tolerance of adverse effects. A patient who does not respond to one TCA may respond to another drug from this class. In addition, the nurse might inform the physician of the patient’s question so the physician can explain his or her rationale for changing medications. By asking the patient if he took the medication as prescribed, the nurse is insinuating that he may not have and could damage the trusting nursepatient relationship. The nurse has no basis for commenting that the medication might not be working or that another drug would work better.

A patient comes to the mental health clinic for a regular appointment. The patient tells the nurse he has been taking oral fluoxetine (Prozac) 20 mg daily for the past 3 weeks and that he has lost 3 pounds

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during that time due to a loss of appetite. What action should the nurse take? A)

Teaching the patient about healthy eating to maintain weight

Congratulating the patient on his weight loss and commenting how well he looks

Encouraging the patient to increase fluid intake to avoid further weight loss

Reassuring the patient that a decrease in weight is a common adverse effect with this medication

Ans:

D Feedback: Adverse effects of fluoxetine include anorexia and weight loss. Although teaching about healthy eating is a good idea, it is more important to teach the patient how to take the medication in a way that will reduce adverse effects as well as how to optimize healthy calories to maintain weight. The patient should increase caloric intake, not just fluid intake. The patient should continue the medication to see whether therapeutic effects are obtained and adjust nutritional intake if necessary. More information about the patient’s baseline weight is needed before congratulating the patient because a patient who is already too thin would not appreciate the nurse’s comment.

A patient diagnosed with type 1 diabetes mellitus is receiving insulin. The physician has prescribed a monoamine oxidase inhibitor (MAOI) to treat this patient’s depression. What interaction will the nurse assess for with this drug combination?

Increased risk of hypoglycemia

Increased risk of hyperglycemia

Increase in appetite

Increased total cholesterol

Ans:

A Feedback: MAOIs can cause an additive hypoglycemic effect if taken with insulin or oral diabetic agents. This patient would have to be monitored closely and appropriate dosage adjustments made; he should be taught the importance of more frequent blood sugar monitoring. The drug combination in this question would not cause an increase in appetite or increased total cholesterol.

A patient has been taking Prozac (fluoxetine) for the past 3 years for depression. She is seeing her gynecologist for premenopausal symptoms and during the interview with the nurse she says that she would like to try Sarafem because her friend is taking it and she says it works great. The nurse’s best response is what?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Sarafem and Prozac are different brand names for the same generic medication.

Before changing drugs it is important to consider how well you responded to Prozac.

You cannot take both drugs at the same time so it will be important to decide which is best.

When taking both of these drugs, it is best to take one in the morning and one at night.

Ans:

340

Feedback: Prozac and Sarafem are different brand names for fluoxetine, so there is no benefit in changing the patient’s medication regimen and, if taken together, would result in a drug overdose. The other three responses are incorrect or inappropriate because they do not recognize that both drugs are the same. 8.

A 12-year-old patient is hospitalized with severe depression. The patient has been taking a selective serotonin reuptake inhibitor (SSRI). What is the priority nursing action for the patient?

Monitor food intake for levels of tyramine.

Assess for weight loss and difficulty sleeping.

Monitor the patient for severe headaches.

Implement suicide precautions.

Ans:

D Feedback: Recent studies have linked the incidence of suicide attempts to the use of SSRIs in pediatric patients (see box 21.3 Focus on the Evidence). The priority concern for the nurse would be safety for the patient. Severe headache and reactions to tyramine-containing foods are associated with monoamine oxidase therapy. Weight loss and difficulty sleeping are of a lower priority concern than the patient’s safety.

What drug, if prescribed for the patient, would indicate the need to assess the patient for depression characterized by anxiety and addictive behaviors?

Imipramine (Tofranil)

Venlafaxine (Effexor)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Fluvoxamine (Luvox)

Tranylcypromine (Parnate)

Ans:

341

Feedback: Venlafaxine is used to treat and prevent depression in generalized anxiety disorder, social anxiety disorder; it also diminishes addictive behavior. Fluvoxamine is a selective serotonin reuptake inhibitor, tranylcypromine is a monoamine oxidase inhibitor, and imipramine is a tricyclic antidepressant that are not indicated for treatment of anxiety disorder and addictive behavior. 10.

A patient receives a new prescription for fluvoxamine (Luvox). What will the nurse instruct the patient about taking the medication?

Take medication after eating breakfast.

Take medication with at least 8 ounces of liquid.

The dosage may need to be increased if the patient is not feeling better in 2 weeks.

The medication should be taken once a day before bedtime.

Ans:

D Feedback: Fluvoxamine is a selective serotonin reuptake inhibitor that should be taken once a day before bedtime. The medication does not require 8 ounces of fluid for absorption. It should be taken for at least 4 weeks before a therapeutic effect is noted.

11.

The patient presents to the emergency department with a headache in the back of the head, palpitations, neck stiffness, nausea, vomiting, sweating, dilated pupils, tachycardia, and chest pain. Blood pressure measures 180/124 and heart rate is 168 beats per minute. The spouse says the only medication he takes is something for depression but she does not know the name of the drug and the patient is also unable to supply the name. What classification of antidepressant does the nurse suspect this patient is taking?

Monoamine oxidase inhibitors (MAOIs)

Selective serotonin reuptake inhibitors (SSRIs)

Tricyclic antidepressants (TCAs)

Antianxiety antidepressants

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Ans:

342

A Feedback: MAOIs have several serious adverse effects that can be fatal. This patient’s symptoms indicate fatal hypertensive crisis characterized by occipital headache, palpitations, neck stiffness, nausea, vomiting, sweating, dilated pupils, photophobia, tachycardia, and chest pain. It may progress to intracranial bleeding and fatal stroke. SSRIs and TCAs are not associated with these particular symptoms. Antianxiety antidepressants are not a classification of antidepressants.

12.

Obsessive-compulsive disorder (OCD) is a disorder that remains under investigation as to its actual neurophysiology. What tricyclic antidepressant is now approved by the Food and Drug Administration to treat OCD?

Clomipramine

Imipramine

Nortriptyline

Amitriptyline

Ans:

A Feedback: Clomipramine is now also approved for use in the treatment of OCD. Imipramine, nortriptyline, and amitriptyline are not approved for use in treating OCD.

13.

The nurse interviews the family of a patient hospitalized with severe depression who is prescribed a tricyclic antidepressant. What assessment data are important in planning this patient’s plan of care? (Select all that apply.)

Recent suicide attempts

Gastrointestinal (GI) obstruction

Affect

Physical pain

Personal responsibilities

Ans:

A, B, C

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Feedback: When caring for a patient with a diagnosis of depression it is always important for the nurse to assess for recent suicide attempts, suicidal ideation, and any suicidal plans. After starting the medication, as the patient begins to feel better, risk of suicide increases, so ongoing assessment is essential to the patient’s safety. Other assessments include allergies, liver and kidney function, glaucoma, benign prostatic hypertrophy, cardiac dysfunction, GI obstruction, surgery, or recent myocardial infarction, all of which could be exacerbated by the effects of the drug. Assess history of psychiatric problems, or myelography within the past 24 hours or in the next 48 hours, or is taking a monoamine oxidase inhibitor to avoid potentially serious adverse reactions. Physical pain and personal responsibilities may be assessed but are not priority assessments unless indicated by other diagnoses. 14.

A patient is admitted to the unit with obsessive-compulsive disorder (OCD). What drug might the nurse administer that has been found to be effective for treating OCD?

Fluvoxamine

Phenelzine

Desipramine

Amitriptyline

Ans:

A Feedback: Fluvoxamine is indicated for the treatment of OCD and is classified as a selective serotonin reuptake inhibitor (SSRI). SSRIs are indicated for the treatment of depression, OCD, panic attacks, bulimia, premenstrual dysphoria disorder, posttraumatic stress disorder, social phobias, and social anxiety disorders. Phenelzine is indicated for depression not responsive to other agents. Desipramine and amitriptyline are tricyclic antidepressants indicated for treatment of depression especially if accompanied by anxiety or sleep disturbances.

15.

The patient has been severely depressed since her father died 6 months ago. The physician has prescribed amitriptyline. The nurse reviews the patient’s chart before administering the medication. What preexisting condition would require cautious use of this drug?

Osteosarcoma

Cardiovascular disorders

Closed head injury

Bleeding ulcer

Ans:

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Feedback: Caution should be used with tricyclic antidepressants in patients with preexisting cardiovascular (CV) disorders because of the cardiac stimulatory effects of the drug and with any condition that would be exacerbated by the anticholinergic effects (e.g., angle-closure glaucoma, urinary retention, prostate hypertrophy, GI or genitourinary surgery). There is no indication that caution is needed with patients diagnosed with osteosarcoma, closed head injury, or bleeding ulcer. 16.

What priority teaching point does the nurse include in the teaching plan for a patient on a monoamine oxidase inhibitor (MAOI)? (Select all that apply.)

Take medication at bedtime.

Monitor blood pressure.

Do not take over-the-counter (OTC) drugs without talking to physician.

Report double vision right away

Reduce tyramine intake

Ans:

B, C, E Feedback: MAOIs can cause drugdrug and drugfood interactions, which can precipitate cardiovascular effects that include orthostatic hypotension, arrhythmias, palpitations, angina, and the potentially fatal hypertensive crisis. Priority teaching points include monitoring blood pressure which will elevate with tyramine ingestion and the importance of not taking any OTC without physician or pharmacist consultation due to multiple drugdrug interactions. When taking an MAOI, you would not necessarily take the drug at bedtime or drink lots of fluid. Blurred, but not double, vision is an adverse effect of an MAOI.

17.

A patient with severe depression has been hospitalized and the physician has ordered amitriptyline. What common adverse effect will the nurse monitor and assess the patient for? (Select all that apply.)

Fever

Myocardial Infarction

Stroke

Dry mouth

Gynecomastia

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

345

B, C, D Feedback: Use of tricyclic antidepressants may lead to GI anticholinergic effects, such as dry mouth, constipation, nausea, vomiting, anorexia, increased salivation, cramps, and diarrhea. Cardiovascular effects (e.g., orthostatic hypotension, hypertension, arrhythmias, myocardial infarction, angina, palpitations, stroke) may occur. Fever and gynecomastia are not normally attributed to amitriptyline therapy.

18.

The nurse is caring for an 8-year-old clinic patient who takes imipramine. The nurse assesses the patient who does not have a history for or signs of depression, so the nurse suspects this drug was prescribed as treatment for what?

Enuresis

Obsessive compulsive disorder (OCD)

Peripheral neuropathy

Panic disorder

Ans:

A Feedback: One of the indications for use of the drug imipramine is enuresis in children older than 6 years. Imipramine is not indicated for the treatment of OCD, peripheral neuropathy, or panic disorder.

19.

A 10-year-old patient is being seen by a physician for severe depression. The physician prescribes an antidepressant. What antidepressant could the nurse safely administer to a child?

Trazodone

Nortriptyline

Fluvoxamine

Phenelzine

Ans:

B Feedback: Nortriptyline has established pediatric doses and can be used in children older than 6 years but such children should be monitored closely for adverse effects. Phenelzine is a monoamine oxidase inhibitor

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(MAOI), a class of drugs that should be avoided in children if at all possible because of the potential for drugfood interactions and the serious adverse effects. Trazodone can be used with children but is not a first-line drug because it has many adverse effects on the central nervous system associated with its use. Luvox is an SSRI that can be used in children to treat obsessive-compulsive disorder but selective serotonin reuptake inhibitors can cause serious adverse effects in children. 20.

The biogenic amine theory of depression states that depression results from a deficiency of biogenic amines in key areas of the brain. Why might a deficiency of these biogenic amines exist?

A slowing of the action of the neurons may lead to their depletion.

Monoamine oxidase (MAO) strengthens the impact of biogenic amines.

The number or sensitivity of postsynaptic receptors may increase.

Norepinephrine may be depleted because biogenic amines feed off of loose particles of the neurotransmitter.

Ans:

C Feedback: The three reasons for depression according to the biogenic amine theory include (1) MAO may break down biogenic amine to be recycled or restored in the neuron. (2) Rapid fire of the neurons may lead to their depletion. (3) The number or sensitivity of postsynaptic receptors may increase, thus depleting neurotransmitter levels.

21.

It has been postulated that depression may be a syndrome that reflects either activity or lack of activity in what areas of the brain? (Select all that apply.)

Limbic system

Corpus callosum

Reticular activating system (RAS)

Substantia nigra

Basal ganglia

Ans:

A, C, E Feedback: Depression also may occur as a result of other, yet unknown causes. This condition may be a syndrome that reflects either activity or lack of activity in a number of sites in the brain, including the arousal

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347

center (i.e., RAS), the limbic system, and basal ganglia. It is not theorized that depression is associated with the corpus callosum or the substantia nigra. 22.

What reason might the nurse give for why venlafaxine (Effexor) has become more popular with adults in treating their depression?

It is taken orally.

It does not have adverse effects.

It can be taken during pregnancy.

An extended release form is available.

Ans:

D Feedback: Venlafaxine mildly blocks reuptake of norepinephrine, 5-hydroxytriptamine, and dopamine. It has fewer adverse central nervous system effects than trazodone. Its popularity has increased with the introduction of an extended-release form that does away with the multiple daily doses that are required with the regular form. Venlafaxine is readily absorbed from the gastrointestinal (GI) tract, extensively metabolized in the liver, and excreted in urine. Adequate studies have not been done in pregnancy and lactation, so that it should be used during those times only if the benefit to the mother clearly outweighs the potential risk to the neonate. It is taken orally, which is the case with most antidepressants.

23.

A 75-year-old male patient is brought to the emergency department by his family because he is talking to people who aren’t there. During the initial admission assessment, his daughter mentions that her mother died 4 months ago and Dad just hasn’t been the same. The doctor has even put him on antidepressant medication. I go by the house every day to make sure he takes his medication. What would the nurse suspect is happening to this patient?

The patient is having hallucinations as an adverse effect of his antidepressant medication.

The mental status change is due to the patient’s age.

The patient probably has a urinary tract infection.

The patient is having delusions because of his depression over the loss of his wife.

Ans:

A Feedback: Older patients may be more susceptible to the adverse effects of antidepressants from unanticipated central nervous system effects to increased sedation, dizziness, and even hallucinations. Although an infection cannot be ruled out without further testing, the history would lead the nurse to the

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antidepressants as the most likely cause. 24.

Antidepressants carry a black box warning about the increased risk of suicide in what age group?

Infants and children

Children and adolescents

Adolescents and adults

Adults and older adults

Ans:

B Feedback: A black box warning was added to all antidepressants bringing attention to the increase in suicidality, especially in children and adolescents, when these drugs were used. Therefore, the other age groups are incorrect.

25.

A patient is prescribed sertraline (Zoloft). What adverse effects should the nurse warn of when developing a medication teaching plan? (Select all that apply.)

Agitation

Agglutination

Insomnia

Intermittent tachycardia

Dry mouth

Ans:

A, C, E Feedback: The adverse effects associated with selective serotonin reuptake inhibitors, which are related to the effects of increased 5-hydroxytriptamine levels, include central nervous system effects (e.g., headache, drowsiness, dizziness, insomnia, anxiety, tremor, agitation, seizures). Gastrointestinal effects (e.g., nausea, vomiting, diarrhea, dry mouth, anorexia, constipation, changes in taste) often occur, as do genitourinary effects (e.g., painful menstruation, cystitis, sexual dysfunction, urgency, impotence). Adverse effects of sertraline do not include agglutination of blood cells or intermittent tachycardia.

26.

The nurse is caring for a patient who is taking amitriptyline for depression. What teaching will the

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349

nurse include in the teaching plan to help the patient monitor for adverse effects? A)

If chest pain occurs an over-the-counter pain reliever will help.

Nasal congestion indicates a respiratory virus is beginning.

Measure and record your blood pressure daily.

Adverse effects will subside as you adjust to the medication.

Ans:

C Feedback: Cardiovascular effects of amitriptyline include orthostatic hypotension, hypertension, arrhythmias, myocardial infarction, angina, palpitations, and stroke. Miscellaneous reported effects include alopecia, weight gain or loss, flushing, chills, and nasal congestion. Teaching the patient how and when to monitor blood pressure would be an important teaching point. Chest pain could be a serious finding and patients should be taught to call 911. Nasal congestion is a possible adverse effect of the drug and not an indication of a respiratory virus infection. Adverse effects often will not subside and may continue so long as the drug is taken.

27.

The nurse is caring for a patient who was referred to a psychiatrist for treatment of a severe anxiety disorder. What medication does the nurse consider appropriate for this patient?

Chlorpromazine (Thorazine) 25 mg three times daily orally

Benztropine (Cogentin) 2 mg twice daily orally

Clozapine (Clozaril) 200 mg twice daily orally

Paroxetine (Paxil) 10 mg once daily orally

Ans:

D Feedback: Paroxetine is a selective serotonin reuptake inhibitor indicated for the treatment of depression, obsessive compulsive disorder, panic attacks, bulimia, premenstrual dysphoria disorder, posttraumatic stress disorders, social phobias, and social anxiety disorders. Chlorpromazine and clozapine are antipsychotic medications whereas benztropine is a drug used to treat Parkinson’s disease. None of these would be appropriate options to treat anxiety disorders.

28.

A patient comes to the clinic because she is feeling depressed and has gained some weight. The physician prescribes oral tranylcypromine (Parnate) 10 mg twice daily for an atypical depression. When prescribed in this manner, when would the nurse tell the patient to expect the drug to reach peak levels in the body?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

1 to 2 hours

2 to 3 hours

3 to 4 days

4 to 5 weeks

Ans:

350

Feedback: The monoamine oxidase inhibitors are well absorbed from the GI tract, reaching peak levels in 2 to 3 hours. The other time frames are incorrect. 29.

The nurse is creating a care plan for a patient taking a selective serotonin reuptake inhibitor (SSRI). What would be an appropriate nursing diagnosis for this patient?

Risk for infection

Establish suicide precautions

Disturbed thought processes related to central nervous system (CNS) effects of medication

Dysfunctional Family Processes

Ans:

C Feedback: Nursing diagnoses related to SSRI therapy might include: Disturbed thought processes related to central nervous system effects because adverse effects of SSRIs include headache, drowsiness, dizziness, insomnia, anxiety, tremor, agitation, and seizures. There would be no reason to expect the patient is at increased risk for infection, there is not enough information known about the patient’s family to know if processes are dysfunctional. Establishing suicide precautions is an intervention and not a nursing diagnosis.

30.

A patient is admitted with a presumed diagnosis of colon cancer who takes a monoamine oxidase inhibitor for depression. What drug will the nurse keep on hand for this patient in case of the onset of an adverse reaction?

Epinephrine

Injectable naloxone (Narcan)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Phenylalanine

Phentolamine

Ans:

351

Feedback: Have phentolamine or another adrenergic blocker on standby as treatment in case of hypertensive crisis. The other options are distracters for this question. 31.

The nurse is working on the telemetry unit and has noted that many postmyocardial-infarction (MI) patients experience depression. What medication would the nurse question if ordered for one of these patients?

Amitriptyline

Escitalopram

Fluoxetine

Fluvoxamine

Ans:

A Feedback: Amitriptyline is a tricyclic antidepressant (TCA). One contraindication to the use of TCAs includes recent myocardial infarction because of the potential occurrence of reinfarction or extension of the infarct with the cardiac effects of the drug. Selective serotonin reuptake inhibitors would be the safest antidepressant to give so there would be no need to question an order for escitalopram, fluoxetine, or fluvoxamine.

32.

The nurse works in a mental health clinic. When a new patient arrives reporting feelings of depression, what conditions are screened for before prescribing antidepressants? (Select all that apply.)

Thyroid disease

Hormonal imbalance

Cardiovascular disorders

Parkinson’s disease

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Diabetes mellitus

Ans:

A, B, C

352

Feedback: Adults using these drugs should have physical causes for their depression ruled out before therapy is begun. Thyroid disease, hormonal imbalance, and cardiovascular disorders can all lead to the signs and symptoms of depression. There is no indication that Parkinson’s disease or diabetes is manifested by depression. 33.

The nurse is teaching a patient taking a monoamine oxidase inhibitor (MAOI) about dietary changes required to minimize adverse effects of the drug. The nurse determines the patient understands a low tyramine diet when what meal is chosen?

A chop salad with blue cheese, sardines, and pepperoni

A sandwich with turkey, avocado, and Swiss cheese

Corned beef hash, eggs, and hash browns

A hamburger, French fries, and a strawberry milkshake

Ans:

D Feedback: Hamburger, French fries, and a strawberry milkshake do not contain tyramine and, although high in fat, it would not be contraindicated for a patient taking an MAOI. Blue cheese, sardines, pepperoni, Swiss cheese, and corned beef are all high in tyramine and would indicate further teaching was needed.

34.

What drugs would the nurse consider contraindicated for the patient taking a monoamine oxidase inhibitor (MAOI)?

Selective serotonin reuptake inhibitor (SSRI)

Insulin

Acetaminophen

Docusate (Colace)

Ans:

A Feedback:

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SSRIs are contraindicated because of a life-threatening serotonin syndrome that could occur. If a patient requires insulin the benefit outweighs the risk but careful monitoring of glucose levels is needed because effects of insulin may be additive with an MAOI. There is no known contraindication for acetaminophen or docusate. 35.

The nurse is caring for a young female patient who is 5 weeks pregnant. What statement made by the nurse about the use of antidepressants during pregnancy is most accurate?

Antidepressants are used very cautiously during pregnancy and only when benefit outweighs risk.

Antidepressants are contraindicated and must be discontinued if pregnancy occurs.

Antidepressants must be chosen carefully because only a few are safe during pregnancy.

Most antidepressants are safe during pregnancy but those that are contraindicated should be avoided.

Ans:

A Feedback: Antidepressants should be used very cautiously during pregnancy and lactation because of the potential for adverse effects on the fetus and possible neurological effects on the baby. Use should be reserved for situations in which the benefits to the mother far outweigh the potential risks to the neonate.

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Chapter 22 - Psychotherapeutic Agents

A group of patients are being screened to see which patients would be the best candidate for a psychotherapeutic drug trial that helps people concentrate longer on activities. Which patient would be best suited for this trial?

A 28-year-old salesperson who alternates between overactivity and periods of depression

A 32-year-old hyperactive nursing student who cannot focus long enough to take a test

A 55-year-old physician who suddenly falls asleep during the day without warning

A 16-year-old youth who say he can make the light turn on by pointing at it and hears voices

Ans:

B Feedback: Attention-deficit disorders involve various conditions characterized by an inability to concentrate on one activity for longer than a few minutes. The nursing student needing accommodations has an attention-deficit disorder. The salesperson exhibits signs of mania, which are characterized by periods of extreme overactivity and excitement followed by extreme depression. The physician is experiencing narcolepsy, which is defined as daytime sleepiness and sudden periods of loss of wakefulness. The teenager is schizophrenic and is exhibiting paranoia, hallucinations, and delusions.

What nursing intervention is appropriate for a 70-year-old female patient receiving lithium?

Instruct the patient to use barrier contraceptives.

Monitor blood glucose levels.

Monitor fluid and sodium intake.

Encourage the patient to check daily for weight loss.

Ans:

C Feedback: Older patients, and especially those with renal impairment, should be encouraged to maintain adequate hydration and salt intake. Decreased dosages may also be necessary with the elderly. A 70-year-old patient would not be concerned about the use of contraceptives. These drugs alone do not affect glucose levels. Weight loss is usually not associated with lithium use.

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355

A nurse is caring for a patient who is taking lithium for mania. The nurse’s assessment includes a notation of a lithium serum level of 2.4 mEq/L. The nurse anticipates seeing what?

Fine tremors of both hands

Slurred speech

Clonic movements

Nausea and vomiting

Ans:

C Feedback: Serum levels of 2 to 2.5 mEq/L may produce ataxia, clonic movements, possible seizures, and hypotension. Fine hand tremors, slurred speech, and nausea and vomiting are indicative of lithium levels less than 1.5 mEq/L.

The nurse administers chlorpromazine intramuscularly to the preoperative patient who is extremely anxious about surgery in the morning. What priority teaching point will the nurse provide this patient?

Remain recumbent for at least 30 minutes after the injection.

Do not eat for 1 hour after the drug is administered.

Encourage fluids with the goal of 3,000 mL/d.

Avoid eating avocados and oranges when taking this medication.

Ans:

A Feedback: When giving a parenteral form of an antipsychotic, the patient should remain recumbent to decrease the risk of injury if orthostatic hypotension occurs. Eating after drug injection should not interfere with the drug’s absorption and although adequate hydration should be maintained there is no need to increase fluid intake. Avocados and oranges are not contraindicated in patients receiving this medication.

The nurse is presenting an in-service at a children’s unit on hyperactivity. The nurse is told that a 6year-old on the unit is being treated with methylphenidate (Ritalin). The presenting nurse talks about discharge teaching for this patient and the importance of monitoring what? Long bone growth

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Visual acuity

Weight and complete blood count

Urea and nitrogen levels

Ans:

356

Feedback: Methylphenidate is associated with weight loss, bone marrow suppression, and cardiac arrhythmias. Weight, blood count, and cardiac function should be monitored regularly. The drug is not associated with renal dysfunction, visual changes, or growth retardation, so those values would not need to be regularly evaluated as part of drug therapy. 6.

The nurse is caring for a patient taking an oral neuroleptic medication. What is the nurse’s priority assessment to monitor for?

Urge incontinence

Orthostatic hypotension

Bradycardia

Tardive dyskinesia

Ans:

D Feedback: The nurse would monitor for and teach the patient and family about tardive dyskinesias because it is such a common adverse effect with continued use of the drug. Oral neuroleptic agents do not cause urge incontinence, orthostatic hypotension, or bradycardia.

A psychotic patient is admitted through the emergency department. The physician has ordered chlorpromazine (Thorazine) 25 mg intramuscularly. After administration of the medication, what is the nurse’s priority to evaluate?

The patient’s ability to ambulate

Return of the patient’s appetite

A decrease in psychotic symptoms

Blood pressure and pulse

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Ans:

357

C Feedback: The nurse will evaluate the effectiveness of the drug in diminishing psychotic symptoms because this is the purpose of administering the drug. Monitoring blood pressure, pulse, and appetite is part of all patient care but is not the priority evaluation criterion for this patient. The ability to ambulate and maintain adequate nutrition would be assessed but is not the priority evaluation for this patient.

A patient diagnosed with bipolar disorder is to be discharged home in 48 hours. The nurse has completed patient teaching regarding the use of lithium. What statement by the patient indicates an understanding of their responsibility?

I will increase my salt intake.

I will increase my fluid intake.

I will decrease my salt intake.

I will decrease my fluid intake.

Ans:

B Feedback: To maintain a therapeutic lithium level, the patient must increase fluids. A decrease in consumption of fluids can lead to toxicity. An increase in salt intake can lead to lithium excretion and a decrease in effectiveness. A decrease in salt intake can cause retention, also leading to toxicity. Adequate salt intake is necessary to keep serum levels in therapeutic range but need not be increased or decreased.

A patient has just been prescribed a phenothiazine. During patient teaching about this drug, what would be important for the nurse to tell the patient?

The urine can turn pink or reddish.

The urine output will be decreased.

Diarrhea can be an adverse effect.

Hyperexcitability can occur.

Ans:

A Feedback:

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Phenothiazines can cause the urine to turn pink or reddish. The patient should be informed that this is a simple color change and is not caused by blood in his urine. Decreased urine output is not associated with this drug. Constipation is usually an adverse effect of the drug. Drowsiness, not hyperexcitability, can occur. 10.

A patient, in the manic phase of bipolar disorder, is being discharged home on an antimanic drug. What antimanic drug is used for long-term maintenance of bipolar disorders?

Aripiprazole (Abilify)

Lamotrigine (Lamictal)

Quetiapine (Seroquel)

Ziprasidone (Geodon)

Ans:

B Feedback: Lamotrigine is used for long-term maintenance of bipolar disorders. Aripiprazole and ziprasidone are used for acute manic and mixed episodes of bipolar disorders. Quetiapine is used as adjunct or monotherapy for the treatment of manic episodes associated with bipolar disorder.

11.

A 16-year-old youth has just been diagnosed with schizophrenia. The parents ask the nurse what causes schizophrenia. What would be the nurse’s best response?

Schizophrenia is caused by pain that the brain perceives.

Schizophrenia is thought to occur due to trauma experienced in childhood.

Schizophrenia is thought to reflect a fundamental biochemical abnormality.

Schizophrenia is caused by seizure activity in the brain.

Ans:

C Feedback: This disorder, which seems to have a very strong genetic association, may reflect a fundamental biochemical abnormality. Mental disorders are now thought to be caused by some inherent dysfunction within the brain that leads to abnormal thought processes and responses. Schizophrenia is not caused by pain, childhood trauma, or seizure activity.

12.

A patient on chlorpromazine is feeling better and decides they no longer need their medication. The nurse teaches the patient that abrupt withdrawal of a typical antipsychotic medication can result in

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what? A)

Insomnia

Tardive dyskinesia

Somnolence

Constipation

Ans:

A Feedback: Sudden withdrawal can cause cholinergic effects such as diarrhea, gastritis, nausea, vomiting, dizziness, arrhythmias, drooling, and insomnia. Abrupt withdrawal of a typical antipsychotic generally does not cause tardive dyskinesia, somnolence, or constipation.

13.

A patient’s medication has been changed to clozapine (Clozaril). The nurse evaluates this patient for which life-threatening adverse effect?

Renal insufficiency

Emphysema

Neuroleptic malignant syndrome

Cerebrovascular accident (CVA)

Ans:

C Feedback: Neuroleptic malignant syndrome can be a life-threatening adverse effect of atypical nonphenothiazines. Renal insufficiency, emphysema, and CVA are not commonly seen adverse effects of atypical non-phenothiazines.

14.

The nurse is caring for an adolescent patient who began taking an antipsychotic drug last month to treat newly diagnosed schizophrenia. The drug has not been effective and the mother asks the nurse if this means the adolescent’s symptoms cannot be controlled by drugs. What is the nurse’s best response?

Patients commonly have to try different drugs until the most effective drug is identified.

Some patients do not respond to drugs and have to rely solely on behavior therapy.

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Most likely your child was not taking the medication properly as prescribed.

He may need to take multiple drugs before effects will be seen that control his symptoms.

Ans:

360

Feedback: A patient who does not respond to one drug may react successfully to another agent. Responses may also vary because of cultural issues. The selection of a specific drug depends on the desired potency and patient tolerance of the associated adverse effects. It is not common to have a patient who does not demonstrate some improvement from medications so it would be incorrect to tell the mother the child won’t respond to any drug after trying only one medication. There is no indication the drug was taken improperly and even properly administered drugs will not work on all patients. Multiple drug therapy is not indicated by the question. 15.

Haloperidol is a typical antipsychotic drug. What adverse effect is associated with this drug?

Bradycardia

Bradypnea

Extrapyramidal effects

Hypoglycemia

Ans:

C Feedback: Haloperidol produces a relatively low incidence of hypotension and sedation and a high incidence of extrapyramidal effects. Haloperidol does not generally produce bradycardia, bradypnea, or hypoglycemia.

16.

The pharmacology instructor is explaining to their class the difference between the typical and the atypical groups of antipsychotic drugs. What medication would the instructor explain to the students has fewer extrapyramidal effects and greater effectiveness than older antipsychotic drugs in relieving negative symptoms of schizophrenia?

Chlorpromazine (Thorazine)

Clozapine (Clozaril)

Thiothixene (Navane)

Haloperidol (Haldol)

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Ans:

361

B Feedback: Advantages of clozapine include improvement of negative symptoms without causing the extrapyramidal effects associated with older antipsychotic drugs. Chlorpromazine is a typical antipsychotic, one of the older drugs, which does cause the extrapyramidal effects. Navane is part of the thioxanthene group of typical antipsychotics. This group of drugs has low sedative and hypotensive effects but can cause extrapyramidal effects. Haloperidol is a butyrophenone group drug used in psychiatric disorders. Usually, it produces a relatively low incidence of hypotension and sedation and a high incidence of extrapyramidal effects.

17.

The nurse, providing teaching about a typical antipsychotic newly prescribed for the patient, cautions against use of alcohol with the drug by explaining it will have what effect?

Prolonged QT interval

Increased central nervous system (CNS) depression

Increased anticholinergic effects

Increased gastrointestinal (GI) adverse effects

Ans:

B Feedback: Antipsychoticalcohol combinations combinations result in an increased risk of CNS depression, and antipsychoticanticholinergic combinations lead to increased anticholinergic effects, so dosage adjustments are necessary. Patients should not take thioridazine or ziprasidone with any other drug associated with prolongation of the QT interval. Increase in GI adverse effects is not associated with concurrent use of alcohol.

18.

The nurse is caring for four patients. Which patient would the nurse know that clozapine (Clozaril) is contraindicated for?

17-year-old adolescent

23-year-old with diabetes insipidus

32-year-old with osteoarthritis

45-year-old with bone marrow depression

Ans:

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362

Feedback: Clozapine is associated with bone marrow suppression, a life-threatening decrease in white blood cells. Because of their wide-ranging adverse effects, antipsychotic drugs may cause or aggravate various conditions. They should be used very cautiously in patients with liver damage, coronary artery disease, cerebrovascular disease, Parkinsonism, bone marrow depression, severe hypotension or hypertension, coma, or severely depressed states. Options A, B, and C are incorrect. 19.

The physician has ordered olanzapine (Zyprexa) for a new patient. What laboratory test should be done before administration of olanzapine?

Blood glucose

Urine specific gravity

Cholesterol

Hemoglobin and hematocrit

Ans:

A Feedback: Olanzapine has been associated with weight gain, hyperglycemia, and initiation or aggravation of diabetes mellitus. Other options are not necessary for patients taking olanzapine unless a secondary diagnosis indicates a need.

20.

Parents bring a 15-year-old boy into the clinic. The parents tell the nurse that there is a family history of schizophrenia and they fear their son has developed the disease. What symptoms, if described by the family, would support their conclusion?

He hears and interacts with voices no one else can hear.

He is overactive and always so excitable.

He falls asleep in the middle of a sentence.

He cannot concentrate and his grades are suffering.

Ans:

A Feedback: Characteristics of schizophrenia include hallucinations, paranoia, delusions, speech abnormalities, and affective problems. Overactivity and excitement are associated with mania. Falling asleep suddenly

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describes narcolepsy. Difficulty concentrating and failing grades is associated with attention deficient disorders. 21.

The patient taking an antipsychotic drug asks the nurse how long he will continue to feel the effects of the drug after stopping the medication. What is the nurse’s best response?

2 to 4 hours

2 to 4 weeks

2 to 4 months

6 months

Ans:

D Feedback: The antipsychotics are widely distributed in the tissues and are often stored there, being released for up to 6 months after the drug therapy has been stopped.

22.

The nurse works on an inpatient mental health unit. When administering antipsychotic medications, what patient would the nurse expect to require a standard dosage?

African American adolescent diagnosed with schizophrenia

Malaysian middle adult diagnosed with bipolar disorder

Iranian older adult diagnosed with schizophrenia

Caucasian young adult diagnosed with bipolar disorder

Ans:

D Feedback: Only the Caucasian young adult has no indications for administering a smaller than usual dosage. African Americans respond more rapidly to antipsychotic medications and have a greater risk for development of disfiguring adverse effects, such as tardive dyskinesia. Consequently, these patients should be started off at the lowest possible dose and monitored closely. Patients in Asian countries (e.g., India, Turkey, Malaysia, China, Japan, Indonesia) receive lower doses of neuroleptics and lithium to achieve the same therapeutic response as seen in patients in the United States. Arab American patients metabolize antipsychotic medications more slowly than Asian Americans do and may require lower doses to achieve the same therapeutic effects as in Caucasians.

23.

Psychosis is a severe mental illness characterized by what?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Disordered thought

Increased social interaction

Hypoactivity with aggressiveness

Paranoid hallucinations

Ans:

364

Feedback: Antipsychotic drugs are used mainly for the treatment of psychosis, a severe mental disorder characterized by disordered thought processes; blunted or inappropriate emotional responses; bizarre behavior ranging from hypoactivity to hyperactivity with agitation, aggressiveness, hostility, and combativeness; social withdrawal in which a person pays less-than-normal attention to the environment and other people; deterioration from previous levels of occupational and social functioning (poor selfcare and interpersonal skills); hallucinations; and paranoid delusions. 24.

The nurse is caring for a patient newly diagnosed with schizophrenia. His parents say they have heard the term before but do not really understand exactly what schizophrenia means. How would the nurse describe the disorder? (Select all that apply.)

Thought disorder

Difficulty functioning in society

Hallucinations can be auditory, visual, or sensory

Can be cured with the correct medications

Enter into fugue state in most cases

Ans:

A, B, C, D Feedback: Mental disorders are thought process disorders that may be caused by some inherent dysfunction within the brain. A psychosis is a thought disorder, and schizophrenia is the most common psychosis in which delusions and hallucinations are hallmarks. Hallucinations can be auditory, visual, or sensory. Patients diagnosed with schizophrenia have difficulty functioning in society. Schizophrenic patients do not generally go into fugue states and it certainly is not a common disorder.

25.

A 7-year-old boy is admitted to the pediatric behavioral health unit with a diagnosis of an acute psychotic episode. Aripiprazole has been ordered. Before administering the medication, what is the

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nurse’s first priority? A)

Weigh the patient.

Obtain baseline vital signs.

Call the physician.

Administer the medication between meals.

Ans:

C Feedback: Of the antipsychotics, chlorpromazine, haloperidol, pimozide, prochlorperazine, risperidone, thioridazine, and trifluoperazine are the only ones with established pediatric regimens. Aripiprazole has dosages for children 13 to 17 years of age but would not be appropriate for a 7-year-old child. Weighing the patient and obtaining baseline vital signs is necessary assessment data but is not the first priority. There is nothing to indicate medications should be administered between meals.

26.

The nurse admits a patient newly diagnosed with schizophrenia to the inpatient mental health unit. What is the priority reason for why the nurse includes the family when collecting the nursing history?

The patient may not be able to provide a coherent history.

The patient may not be able to speak due to reduced level of consciousness.

The family will feel better if they are included in the process.

The patient will be less anxious if the family listens while he answers questions.

Ans:

A Feedback: Schizophrenia, the most common psychosis, is characterized by delusions, hallucinations, and inappropriate responses to stimuli. As a result, the patient may be unable to provide a coherent history and may be unaware of his behaviors considered dysfunctional. There is no reason to suspect the patient cannot speak and reducing anxiety is not the priority rationale for including family. While family is included in treatment, the goal is to treat the patient and not make the family feel better if actions were not in the patient’s best interests.

27.

The nurse is teaching the soon-to-be-discharged patient, diagnosed with schizophrenia, about his medications. What is a priority teaching point for this patient? The patient must eat three nutritious meals daily.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Over-the-counter medications may be taken with antipsychotic drugs.

Cough medicines potentiate the actions of antipsychotic drugs.

Alcohol consumption should be avoided.

Ans:

366

Feedback: Alcohol consumption should be avoided because it increases the central nervous system (CNS) effects of the drug and may cause excessive drowsiness and decreased awareness of safety hazards in the environment. Some patients may find it easier and more effective to eat five small meals rather than three nutritious meals. While promoting good nutrition is good practice, it is not the priority. Drugdrug interactions with antipsychotic drugs are common so the nurse would teach the patient not to take any medication without consulting with the doctor or a pharmacist to make sure it is safe. 28.

What antiepileptic medication might the nurse administer to treat bipolar disorder?

Apriprazole (Abilify)

Cyclobenzaprine (Flexeril)

Lamotrigine (Lamictal)

Temazepam (Restoril)

Ans:

C Feedback: Lamotrigine is an antiepileptic agent used for long-term maintenance of patients with bipolar disorders because it decreases occurrence of acute mood episodes. Apriprazole is an atypical antipsychotic and is not an antiepileptic medication. Flexeril is a muscle relaxant and Temazepam is a hypnotic agent. None of these medications are indicated for the treatment of bipolar disorder.

29.

A patient, who is 77 years old, is admitted with a diagnosis of dementia. Haloperidol (Haldol) has been ordered for this patient. What nursing considerations would govern the nurse’s actions? (Select all that apply.)

It is classed as an atypical antipsychotic.

A lowered dosage is indicated for older adult.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

It often has a hyperactive effect on patients.

It should not be used to control behavior with dementia.

It should only be given every other day.

Ans:

B, D

367

Feedback: Haloperidol is classified as a typical antipsychotic with a high risk of extrapyramidal effects and lower risk for hypotension and sedation. Older patients may be more susceptible to the adverse effects of antipsychotic drugs. All dosages need to be reduced and patients monitored very closely for toxic effects and to provide safety measures if central nervous system effects do occur. They should not be used to control behavior with dementia. Haloperidol does not have a hyperactive effect on patients; it should not be given on an every-other-day schedule. 30.

Which drug does not have a recommended pediatric dose?

Pimozide (Orap)

Lithium salts (Lithotabs)

Haloperidol (Haldol)

Risperidone (Risperdal)

Ans:

B Feedback: Lithium does not have a recommended pediatric dose; the drug should not be administered to children younger than 12 years old. Pimozide, haloperidol, and risperidone all have recommended pediatric doses.

31.

The mother of a child diagnosed with attention-deficit syndrome receives a prescription for a central nervous system (CNS) stimulant to treat her child. The mother asks the nurse, I don’t understand why we’re giving a stimulant to calm him down? What is the nurse’s best response to this mother?

It helps the reticular activating system (RAS), a part of the brain, to be more selective in response to incoming stimuli.

It helps energize the child so they use up all of their available energy and then they can focus on quieter stimuli.

No one truly understands why it works but it has been demonstrated to be very effective in treating

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368

ADHD. D)

The drugs work really well and you will see a tremendous change in your child within a few weeks without any other treatment.

Ans:

A Feedback: The paradoxical effect of calming hyperexcitability through CNS stimulation seen in attention-deficit syndrome is believed to be related to increased stimulation of an immature RAS, which leads to the ability to be more selective in response to incoming stimuli. CNS stimulants do not cause the child to use all his energy, the effect is thought to be understood, and telling the mother the drug just works without any explanation is not appropriate and may result in noncompliance with pharmacology therapy if the mother does not understand why the drug is given.

32.

The nurse is teaching the mother of a child diagnosed with attention-deficit hyperactivity disorder how to administer methylphenidate (Ritalin). When would the nurse instruct the mother to administer this drug?

Administer at lunch every day.

Administer at breakfast every day.

Administer at dinner every day.

Administer at bedtime.

Ans:

B Feedback: Several long-acting formulations of methylphenidate have become available that allow the drug to be given only once a day. It should always be given in the morning because administration at dinnertime or bedtime could result in insomnia.

33.

A child was diagnosed with attention-deficit hyperactivity disorder and methylphenidate was prescribed for treatment to be taken once a day in a sustained release form. On future visits what is a priority nursing assessment for this child?

Weight and height

Breath sounds and respiratory rate

Urine output and kidney function

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Electrocardiogram (ECG) and echocardiogram

Ans:

369

Feedback: The nurse needs to carefully track this child’s weight and height because the drug can cause weight loss, anorexia, and nausea that could result in slowed or absent growth. There would be no need to monitor breath sounds, respiratory rate, urine output, and kidney function. Although arrhythmias may occur as an adverse effect necessitating an ECG, there is no need to perform echocardiograms. 34.

The nurse is preparing to administer methylphenidate to the child admitted to the pediatric unit after breaking a leg when jumping off the garage roof at home. Where will the nurse find the medication?

In the patient’s drawer

In the refrigerator

At the patient’s bedside

In the controlled substance cabinet

Ans:

D Feedback: Methylphenidate is a controlled medication due to risk for physical and psychological dependence. As a result, the drug would be found in the controlled substance cabinet.

35.

The nurse is caring for a child receiving a central nervous system (CNS) stimulant who was admitted to the pediatric intensive care unit following repeated seizures after a closed head injury. The physician orders phenytoin to control seizures and lorazepam to be administered every time the child has a seizure. What is the nurse’s priority action?

Call the doctor and question the administration of phenytoin.

Call the doctor and question the administration of lorazepam.

Wait 24 hours before beginning to administer phenytoin.

Wait 24 hours before beginning to administer lorazepam.

Ans:

A Feedback:

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The combination of CNS stimulants with phenytoin leads to a risk of increased drug levels. Patients who receive such a combination should be monitored for toxicity. There is no contraindication for use of lorazepam.

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Chapter 23 - Antiseizure Agents

A patient is admitted to the emergency department with severe recurrent convulsive seizures. What drug would the nurse expect to be ordered for use in emergency control of status epilepticus?

Phenytoin (Dilantin)

Diazepam (Valium)

Phenobarbital (Luminal)

Ethosuximide (Zarontin)

Ans:

C Feedback: Phenobarbital is used for emergency control of status epilepticus. This barbiturate inhibits impulse conduction in the ascending reticular activating system (RAS), depresses the cerebral cortex, alters cerebellar function, and depresses motor nerve output. Phenobarbital stabilizes nerve membranes throughout the central nervous system (CNS) directly by influencing ionic channels in the cell membrane, thereby decreasing excitability and hyperexcitability to stimulation. By decreasing conduction through nerve pathways, it reduces the tonicclonic, muscular, and emotional responses to stimulation. Phenobarbital depresses conduction in the lower brainstem and the cerebral cortex and depresses motor conduction. Phenytoin is used to prevent status epilepticus but is not used to stop seizures after they have started; diazepam is used for short-term treatment of status epilepticus. Ethosuximide is used for absence seizures.

The pharmacology instructor is discussing drugs used for the treatment of partial seizures. What accurately describes the physiological action of carbamazepine?

Reduces electrical activity

Alters sodium and calcium channels

Increases gamma-aminobutyric acid (GABA) activity and blocks sodium and calcium channels to stop action potentials

Depresses conduction in the brainstem and cortex

Ans:

C Feedback:

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Carbamazepine increases GABA activity and blocks sodium and calcium channels to stop action potentials. Succinimides reduce electrical activity. Acetazolamides reduce electrical activity and alter sodium and calcium channels. Barbiturates depress conduction in the brainstem and the cortex. 3.

A 7-year-old girl is brought to the clinic by her mother. The mother states that the child will be engaged in some activity at home and then will just stop for a few seconds and then pick up the activity again as if there had been no break in what she was doing. The nurse suspects the child might be demonstrating what type of seizure?

Tonicclonic seizure

Absence seizure

Myoclonic seizure

Status epilepticus

Ans:

B Feedback: Absence seizures involve abrupt periods of loss of consciousness lasting 3 to 5 seconds. Tonic-clonic seizures involve dramatic muscle contractions, loss of consciousness, and a recovery period characterized by confusion and exhaustion. Myoclonic seizures involve short, sporadic periods of muscle contractions lasting for several minutes. These types of seizures are rare. Status epilepticus seizures are the most dangerous and rapidly occur one after another.

A patient is brought into the emergency department in status epilepticus. The nurse administers phenobarbital 320 mg IV according to protocol. Family members ask the nurse how long it will take to stop the seizures. What is the nurse’s best response?

The onset of action for the medication is 5 minutes.

We should see results in about 10 minutes.

It will probably take about 30 minutes before the seizures begin to subside.

It may be an hour before the seizures stop.

Ans:

A Feedback: The onset of IV phenobarbital is 5 minutes; however, it is important not to confuse when the onset of action will occur and when the seizures will stop because additional interventions may be needed to stop the seizure activity in some cases. For intramuscular and subcutaneous administration, the onset should be between 10 and 30 minutes. Onset for an oral dose is between 30 and 60 minutes.

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The nurse evaluates the patient’s serum phenytoin (Dilantin) level and determines the level is therapeutic when it is within what range?

Between 5 and 12 mcg/mL

Between 10 and 20 mcg/mL

Between 15 and 50 mcg/mL

Between 40 and 100 mcg/mL

Ans:

B Feedback: The therapeutic serum level range for phenytoin is between 10 and 20 mcg/mL. The other options are incorrect.

A nurse is teaching a patient about his or her newly prescribed drug, phenytoin (Dilantin) for a seizure disorder. What will the nurse alert the patient to as a serious adverse effect of this drug?

Drowsiness

Fatigue

Rash

Lethargy

Ans:

C Feedback: Serious liver, bone marrow, and potentially serious dermatological adverse effects can occur with phenytoin. Drowsiness, fatigue, and lethargy are adverse effects of hydantoins and classified as not serious.

An 8-year-old child has been diagnosed with a seizure disorder and phenytoin (Dilantin) has been prescribed for him or her. What nursing diagnosis would be appropriate if the child demonstrated adverse effects to the drug? Deficient fluid volume

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Impaired skin integrity related to dermatological effects

Noncompliance for drug therapy

Sleep deprivation

Ans:

374

Feedback: Impaired skin integrity related to dermatological effects would be appropriate because phenytoin can cause potentially serious dermatological effects as well as gum disease and stained teeth. Usually this drug will cause the patient to be sleepy all day and should enhance sleep at night. Deficient fluid volume is not a concern with this drug. Noncompliance will probably not be an issue at this age because the parents and school nurse will administer the medication. 8.

A patient is taking ethosuximide (Zarontin) for absence seizures. He or she complains of gastrointestinal (GI) upset associated with the drug. The nurse will encourage the patient to do what?

Take the drug 1 hour before or 2 hours after a meal.

Decrease the dosage.

Take the drug with food.

Discontinue the drug and ask his or her physician to prescribe another drug.

Ans:

C Feedback: If GI irritation occurs with ethosuximide, the patient should be encouraged to take the medication with food to reduce this adverse effect. A nurse would never tell a patient to decrease the dosage or discontinue a drug. That advice should only be given by the patient’s medication prescriber. Taking the drug 1 to 2 hours after meals would not reduce this effect.

The drug of choice for the treatment of partial seizures is what?

Carbamazepine (Tegretol)

Clorazepate (Tranxene)

Felbamate (Felbatol)

Gabapentin (Neurontin)

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Ans:

375

A Feedback: Carbamazepine is often the drug of choice for treatment of partial seizures. It has the ability to inhibit polysynaptic responses and to block sodium channels to prevent the formation of repetitive action potentials in the abnormal focus. Clorazepate is indicated for anxiety and alcohol withdrawal and used as adjunctive therapy for partial seizures. Felbamate has been associated with severe liver failure and aplastic anemia and is now reserved for those patients who do not respond to other therapies. Gabapentin is used as adjunctive therapy in the treatment of partial seizures and for the treatment of postherpetic neuralgia.

10.

A patient who has been taking lamotrigine (Lamictal) for the past 2 weeks calls the clinic and reports to the nurse that he or she has developed a rash. What should the nurse tell him or her to do?

To continue taking the drug and that the rash will go away

To talk to he or she physician and that he will prescribe a cream to apply to the rash

To decrease the dosage by half for 2 weeks and then take the prescribed dose

To discontinue the drug and return to the clinic immediately

Ans:

D Feedback: The nurse should inform the patient to discontinue the drug and return to the clinic. Rashes associated with the use of lamotrigine can be life-threatening. The patient needs to return to the clinic to be evaluated and will need a change of medication. Discontinuing the medication will cause the rash to clear. The nurse is not licensed to adjust the dosage of a drug for a patient.

11.

The school nurse sees a child on the playground have an absence seizure identified by the occurrence of what characteristics?

Alterations in consciousness that last seconds

Automatic and repetitive movements

Abnormal movements and bizarre behavior

Sustained contraction of skeletal muscle

Ans:

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Feedback: Absence seizures are characterized by abrupt alterations in consciousness that last only a few seconds. Characteristics of an absence seizure do not include automatic and repetitive movements, abnormal movements and bizarre behavior, or sustained contraction of skeletal muscle. 12.

The nurse is providing patient education for a patient newly prescribed a hydantoin antiseizure medication. What would the nurse be sure to teach the patient regarding the dangers of abrupt withdrawal?

Hypertensive crisis

Cardiac dysrhythmias

Respiratory arrest

Status epilepticus

Ans:

D Feedback: Discontinuing hydantoins could result in status epilepticus so that drugs should be withdrawn, or added to the medication regimen, carefully to avoid danger. An abrupt withdrawal of antiseizure medications would not precipitate hypertensive crisis, dysrhythmias, or respiratory arrest.

13.

A patient is brought to the emergency department in the midst of an active clonictonic seizure. What is the most appropriate antiseizure drug for the nurse to administer intravenously to terminate acute convulsive seizures?

Diazepam (Valium)

Phenytoin (Dilantin)

Ethosuximide (Zarontin)

Gabapentin (Neurontin)

Ans:

A Feedback: The drug of choice for acute seizures is intravenous benzodiazepine, usually diazepam. Phenytoin is administered to control and prevent seizures but is not the drug of choice to stop an active seizure. Gabapentin and ethosuximide are administered for partial seizures.

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14.

377

The nurse is caring for a patient receiving ethotoin to control seizure activity. When reviewing the patient’s laboratory results, the nurse would assess the patient is in a therapeutic level when the lab result is within what range?

5 to 15 mcg/mL

10 to 20 mcg/mL

15 to 50 mcg/mL

20 to 30 mcg/mL

Ans:

C Feedback: Therapeutic serum ethotoin levels range between 15 and 50 mcg/mL. Options A, B, and D are incorrect.

15.

The nurse, working in the emergency room, admits a 13-month-old child reported by the parents to have had a clonictonic seizure at home with no history of a seizure disorder. What is the nurse’s priority intervention?

Monitor serum phenytoin level.

Take the child’s temperature.

Place the child in a tepid bath.

Administer an antipyretic medication.

Ans:

B Feedback: The first action of the nurse is to measure body temperature to determine whether the child has a fever, which could explain why the seizure occurred. Febrile seizures are common in young children. They are related to very high fevers and usually involve clonictonic seizure. Febrile seizures most frequently occur in children and they are usually self-limited and do not reappear. The nurse would not treat a fever by administering antipyretics or providing a tepid bath until temperature is measured. There would be no reason to check phenytoin levels if the child has no history of seizure disorder.

16.

Richard, 15 years old, has been diagnosed with epilepsy. He is to be sent home on oral phenytoin 100 mg b.i.d. What statement by Richard’s mother leads the nurse to believe she has understood drug teaching?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

I will make sure he takes the medication on an empty stomach.

I will stop the drug immediately if any side effects occur.

I will make sure he has routine visits to the dentist.

I will weigh him daily and feed him a high-calorie diet.

Ans:

378

Feedback: Gingival hyperplasia is common in patients, especially children, who take phenytoin, which makes regular dentist visits important to oral health. Taking the medication on a full stomach or with meals reduces gastrointestinal (GI) adverse effects. The mother should call the health care provider if adverse effects are noted and needs to understand the risks associated with abrupt withdrawal of the medication. Daily weight taking and high-calorie diets are not associated with phenytoin administration. 17.

The mother of a child newly diagnosed with drug-resistant epilepsy asks the nurse why two antiepileptic drugs have been prescribed for her daughter. What is the nurse’s best answer?

To decrease overall cost

To decrease risk of adverse effects

To minimize seizures in resistant epilepsy

To increase movement of sodium ions into the cell

Ans:

C Feedback: When monotherapy is ineffective, a second, and sometimes a third, drug may be added in an attempt to control seizures. It does not decrease overall cost or reduce the risk of side effects or increase movement of sodium ions into the cell.

18.

The patient’s serum drug level is elevated and indicates a toxic level. What will the nurse assess for in this patient? (Select all that apply.)

Liver toxicity

Bone marrow suppression

Serious dermatological reactions

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Tooth loss

Renal damage

Ans:

A, B, C

379

Feedback: Toxic levels of phenytoin increase the likelihood of adverse effects so the nurse would assess for liver toxicity, bone marrow suppression, or serious dermatological reactions. Gingival hyperplasia, not tooth loss, is associated with phenytoin toxic effects. Renal damage is not associated with phenytoin. 19.

A patient has a new order for carbamazepine (Tegretol). What does the nurse know is a contraindication to administration of carbamazepine?

Bone marrow depression

Bipolar disorder

Allergy to sulfonamides

Diabetes

Ans:

A Feedback: Bone marrow suppression would be considered a contraindication to administration of carbamazepine therapy. Contraindications to the use of Tegretol do not include bipolar disorder, an allergy to sulfonamides, or diabetes.

20.

A patient with liver impairment needs an antiepileptic drug. What drug would be safest for patients with liver impairment?

Levetiracetam (Keppra)

Lamotrigine (Lamictal)

Phenobarbital

Valproic acid (Depakene)

Ans:

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380

Feedback: Levetiracetam is a newer drug chemically unrelated to other antiepileptic drug. Most of the drug is excreted by the kidneys and is not metabolized by the liver so it would be safer for the patient with liver disease. The other options are all metabolized by the liver, so the patient with liver disease will need a lower dosage. 21.

The nurse is caring for a patient diagnosed with generalized seizures and will appropriately administer what classifications of medications to this patient? (Select all that apply.)

Succinimides

Acetazolamide

Valproic acid

Hydantoin

Benzodiazepines

Ans:

D, E Feedback: Drugs used to treat generalized seizures include the hydantoins, barbiturates, and benzodiazepines. Drugs used to treat absence seizuresa particular type of generalized seizureinclude the hydantoins, succinimides, acetazolamide, valproic acid, and zonisamide.

22.

The nurse is caring for a 4-year-old child diagnosed with a seizure disorder requiring an antiseizure agent. Using mg/kg as the comparison, how will the child’s dose compare with an adults dose?

Children require a smaller mg/kg dose than an adult.

Children require a larger mg/kg dose than an adult.

Mg/kg dose is the same for adults and children.

Dosing varies by medication.

Ans:

B Feedback: Older children (2 months to 6 years of age) absorb and metabolize many of these drugs more quickly than adults and require a larger dosage per kilogram to maintain therapeutic levels.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

23.

381

What factors contribute to determining the drug of choice for a patient with epilepsy? (Select all that apply.)

Age

Type of epilepsy

Patient characteristics

Preferred adverse effect

Gender

Ans:

A, B, C Feedback: The drug of choice for any given situation depends on the type of epilepsy, patient age, specific patient characteristics such as cultural variations, and patient tolerance for associated adverse effects as opposed to preferred adverse effect. No adverse effects would be preferred but, because nearly all drugs have some adverse effects, determining what is tolerable to a particular patient is important to consider. Gender does not play a role in determining drug of choice.

24.

The nurse anticipates a reduced dosage due to cultural differences when caring for patients from what cultural groups? (Select all that apply.)

Arab Americans

Asian Americans

African Americans

White American

Native American

Ans:

A, B Feedback: Because of differences in liver enzyme functioning among Arab Americans and Asian Americans, patients in these ethnic groups may not metabolize antiseizure agents in the same way as patients in other ethnic groups. They may require not only lower doses to achieve the same therapeutic effects but also frequent dose adjustment. Nothing indicates a need to alter dosage for African Americans, Whites, or Native Americans.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

25.

382

A patient with a seizure disorder has had a recent change in medication. What data would the nurse collect to evaluate the effectiveness of the new drug? (Select all that apply.)

Evaluate vital signs.

Evaluate laboratory drug level.

Assess for adverse effects.

Assess for change in seizure activity.

Assess for cost of therapy.

Ans:

B, C, D Feedback: Interview and assess for any change in seizure activity; interview and assess for avoidance of adverse drug effects, especially those that impair safety; when available, check laboratory reports of serum drug levels for therapeutic ranges or evidence of underdosing or overdosing. Measuring vital signs is part of every patient visit but does not contribute to evaluation of drug effectiveness. For example, if the patient has had a sudden increase in number of seizures, but is not currently having a seizure, vital signs will likely be within normal range. Cost of therapy does not indicate the effectiveness of drugs. Cost should be considered when prescribing drugs, not when they are being evaluated.

26.

A patient is brought in to the emergency department by ambulance in status epilepticus. What drug may be used for this patient?

Carbamazepine

Clorazepate

Ethotoin

Fosphenytoin

Ans:

D Feedback: Only fosphenytoin is indicated for the treatment of status epilepticus. Carbamazepine is used to treat seizure disorders as well as trigeminal neuralgia and bipolar disorder but it is not indicated for status epilepticus. Clorazepate and ethotoin are used in long-term treatment of partial seizure disorders, alone, or with other antiepileptic drugs but would not be used for status epilepticus.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

27.

383

The patient has serum drug levels of an antiepileptic drug ordered. The patient asks the nurse why drug levels are measured. What is the nurse’s best response?

To evaluate whetherthe therapeutic range is reached

To measure the amount of toxicity

To determine the effect of the drug on body systems

To evaluate the effectiveness of therapy

Ans:

A Feedback: Measuring serum drug levels evaluates whether the therapeutic range of circulating drug can be found in the serum. It does not measure toxicity, which can occur even when the drug level is within prescribed range, and it does not evaluate effectiveness of therapy, which can only be evaluated by determining whether the drug is having the desired effect of reducing number of seizures. To determine the effect the drug is having on other body systems, it would be necessary to draw lab levels that measure functioning of that particular system.

28.

The nursing instructor is discussing absence seizures and how to treat them in children. A student asks the difference between ethosuximide and methsuximide, the drugs used to control absence seizures. What is the instructors best response?

Ethosuximide has more severe adverse effects than methsuximide.

Seizures are more refractory to methsuximide.

There is no real difference in the drugs.

Methsuximide has more severe adverse effects than ethosuximide.

Ans:

D Feedback: Ethosuximide and methsuximide are indicated for the control of absence seizures. Ethosuximide should be tried first; methsuximide should be reserved for the treatment of seizures that are refractory to other agents because it is associated with more severe adverse effects.

29.

A patient, newly diagnosed with a seizure disorder, has been prescribed valproic acid. What is one adverse effect of valproic acid that the nurse should include in the medication teaching plan? Liver toxicity

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Esophageal irritation

Cardiac insufficiency

Muscle weakness

Ans:

384

Feedback: Valproic acid is associated with liver toxicity. Esophageal irritation, cardiac insufficiency, and muscle weakness are not associated with valproic acid therapy. 30.

While writing a care plan for a patient newly diagnosed with generalized seizures, the nurse might appropriately choose what nursing diagnosis?

Risk for injury related to gastrointestinal (GI) effects

Disturbed thought processes related to central nervous system effects

Monitor complete blood count (CBC) before and periodically during therapy.

Offer support and encouragement.

Ans:

B Feedback: Disturbed thought processes related to central nervous system (CNS) effects is a nursing diagnosis for a patient receiving any antiepileptic medication for generalized seizures. Monitoring CBC and offering support and encouragement are implementations rather than diagnosis. Risk for injury is incorrect because the risk for injury to this patient is from the CNS effects and not GI effects.

31.

The patient, newly diagnosed with epilepsy, asks the nurse to explain the meaning of the diagnosis. What is the nurse’s best response?

Epilepsy is a single disease that causes seizures.

Epilepsy is a convulsive disorder caused by electrical discharge in the muscle.

Epilepsy is characterized by sudden discharge of excessive electrical energy.

Epilepsy is the tonicclonic muscle contractions with potential to cause injury.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

385

B Feedback: The most prevalent of the neurological disorders, epilepsy is not a single disease but a collection of different syndromes characterized by the same feature: sudden discharge of excessive electrical energy from nerve cells located within the brain, which leads to a seizure. In some cases, this release stimulates motor nerves, resulting in convulsions, with tonicclonic muscle contractions that have the potential to cause injury, tics, and spasms. Other discharges may stimulate autonomic or sensory nerves and cause very different effects, such as a barely perceptible, temporary lapse in consciousness or a sympathetic reaction.

32.

The nurse is providing patient teaching with a patient who is newly diagnosed with epilepsy. The patient asks, Can I still drive to work? What is the nurse’s best response?

Not until your seizures are controlled by medication

Yes, as long as you take your medications regularly.

You can drive as soon as therapeutic drug levels are obtained.

Epileptics need to use public transportation because a seizure could occur anytime.

Ans:

A Feedback: Patients newly diagnosed with epilepsy will not be able to drive. However, after the patient’s seizures are controlled (usually for 6 months to 2 years depending on state law), the patient may be able to regain the ability to drive.

33.

The nurse is caring for an 84-year-old patient in the acute care facility who was newly diagnosed with a seizure disorder. Before starting the patient on an antiepileptic medication that will be continued after discharge, what laboratory studies would the nurse want to assess? (Select all that apply.)

Serum drug levels

Liver function studies

Renal function studies

Cardiovascular function studies

Central nervous system function studies

Ans:

B, C

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

386

Feedback: Baseline kidney and liver function tests should be done and results will guide dosing of the antiepileptic medication because patients with liver or kidney disease will require lower dosages of medication. Serum drug levels will not be drawn until after specific medications are started. Cardiovascular and central nervous system function studies are not indicated. 34.

The patient has a seizure that causes rhythmic twitching of the left hand for 90 seconds with no loss of consciousness and then stops. The nurse notes this same action repeated many times throughout the day and documents this as what type of seizure?

Myoclonic seizure

Jacksonian seizure

Psychomotor seizure

Simple partial seizure

Ans:

D Feedback: This patient is having simple partial seizures, which occur in a single area of the brain and may involve a single muscle movement or sensory alteration. Myoclonic seizures involve short, sporadic periods of muscle contractions that last for several minutes. Jacksonian seizures begin in one area of the brain and involve one part of the body and then progressively spread to other parts of the body; they can develop into generalized tonicclonic seizures. Psychomotor seizures are complex seizures that involve sensory, motor, and psychic components.

35.

What antiepileptic classification of drugs works by stabilizing nerve membranes by influencing ionic channels in the cell membrane, thereby decreasing excitability and hyperexcitability to stimulation?

Hydantoins

Benzodiazepines

Valproic acid

Carbamazepine

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

387

The hydantoins stabilize nerve membranes throughout the central nervous system directly by influencing ionic channels in the cell membrane, thereby decreasing excitability and hyperexcitability to stimulation. By decreasing conduction through nerve pathways, they reduce the tonicclonic, muscular, and emotional responses to stimulation. Valproic acid and benzodiazepines increase gammaaminobutyric acid (GABA) effects and decrease electrical activity. Carbamazepine increases GABA activity and blocks sodium and calcium channels to stop action potentials.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

388

Chapter 24 - Antiparkinsonism Agents

Degeneration in neurons that release a neurotransmitter leads to Parkinson’s disease. What neurotransmitter is involved?

Gamma-aminobutyric acid (GABA)

Acetylcholine

Dopamine

Serotonin

Ans:

C Feedback: Degeneration of dopamine-releasing neurons in the substantia nigra leads to Parkinson’s disease. When dopamine is decreased in the area of the corpus striatum, a chemical imbalance allows the cholinergic or excitatory cells to dominate. This affects the functioning of the basal ganglia and cortical and cerebellar components of the extrapyramidal motor system. This system provides coordination for unconscious muscle movements, including those that control position, posture, and movement. The result of the imbalance produces the signs and symptoms of Parkinson’s disease. The corpus striatum in the brain is connected to the substantia nigra by a series of neurons that use the inhibitory neurotransmitter GABA. Higher neurons from the cerebral cortex secrete acetylcholine in the area of the corpus striatum as an excitatory neurotransmitter to coordinate movements of the body. Serotonin is not involved in these functions.

A 10-year-old boy has been prescribed an antiparkinsonian drug. Which drug would the nurse expect as the first choice for this child?

Benztropine (Cogentin)

Diphenhydramine (Benadryl)

Trihexyphenidyl (Artane)

Procyclidine (Kemadrin)

Ans:

B Feedback: Parkinson’s disease is rare in children. However, if a child needs an antiparkinsonian drug,

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

389

diphenhydramine is the drug of choice. Benztropine, trihexyphenidyl, and procyclidine are not recommended for use in children. 3.

A patient is newly diagnosed with Parkinson’s disease. An anticholinergic drug is ordered for the patient. When reviewing the patient’s medical history, the nurse realizes an anticholinergic drug is contraindicated for this patient because of what secondary diagnosis? (Select all that apply.)

Benign prostatic hypertrophy

Narrow-angle glaucoma

Myasthenia gravis

Dysrhythmias

Hepatic dysfunction

Ans:

A, B, C Feedback: Anticholinergics are contraindicated in the presence of narrow-angle glaucoma, GI obstruction, genitourinary (GU) obstruction, and prostatic hypertrophy, all of which could be exacerbated by the peripheral anticholinergic effects of these drugs, and in myasthenia gravis, which could be exacerbated by the blocking of acetylcholine-receptor sites at the neuromuscular synapses. These agents should be administered cautiously, but they are not contraindicated in therapy for the following conditions: tachycardia and other dysrhythmias and hypertension or hypotension because the blocking of the parasympathetic system may cause a dominance of sympathetic stimulatory activity, and in hepatic dysfunction, which could interfere with the metabolism of the drugs and lead to toxic levels.

A patient is newly diagnosed with Parkinson’s disease and levodopa (Dopar) has been prescribed. What patient teaching information should be considered a high priority for this patient?

Avoid vitamin B6 intake.

Avoid hot environments.

Many adverse effects will subside when the body adjusts to the drug.

Allow rest periods.

Ans:

A Feedback: The priority information would be to avoid vitamin B6 intake, which would include grains and bran.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

390

Vitamin B6 speeds the conversion of levodopa to dopamine before it can cross the bloodbrain barrier. This leads to Parkinson’s symptoms. The other options are all important and should be discussed with the patient. However, sweating, headaches, difficulty sleeping, fatigue, weakness, and dizziness are expected adverse effects, which will eventually subside or decrease. 5.

A patient with Parkinsonism has been told that the levodopa prescribed is no longer controlling the disease. What drug would the nurse question if ordered as adjunctive therapy?

Diphenhydramine (Benadryl)

Pramipexole (Mirapex)

Trihexyphenidyl (Artane)

Vitamin B6

Ans:

D Feedback: Vitamin B6 would further decrease the therapeutic effects of levodopa and is contraindicated with levodopa, so the nurse would question this order. Pramipexole, diphenhydramine, and trihexyphenidyl are all useful adjunctive drugs when Parkinson’s disease is no longer controlled with levodopa therapy alone.

The nurse provides patient teaching about use of levodopa for treatment of Parkinson’s disease. What statement by the patient would indicate a good understanding of levodopa?

I will take the medication for about a year and then stop.

I should avoid exercising while taking this drug.

I should take this drug with meals to avoid GI upset.

I will take megavitamins to ensure that I have good nutrition.

Ans:

C Feedback: The patient should be instructed to take levodopa with meals if GI upset occurs. Patients being treated for Parkinson’s disease should be taught that drug treatment will be needed for life and cannot be stopped in a year. The patient should continue to be as active as possible. Multivitamins will contain vitamin B6, which should be avoided when taking levodopa.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

391

What drug does the nurse administer to treat Parkinson’s disease that is also classified as an antiviral?

Amantadine (Symmetrel)

Entacapone (Comtan)

Diphenhydramine (Benadryl)

Ropinirole (Requip)

Ans:

A Feedback: Amantadine is an antiviral drug that increases the release of dopamine and is effective in Parkinson’s disease so long as there is a possibility of more dopamine release. Ropinirole is a dopaminergic antiparkinsonism drugs. Entacapone is used as adjunctive treatment of idiopathic Parkinson’s disease with levodopacarbidopa for patients who are experiencing wearing off of drug effects. Diphenhydramine is used, particularly in children, to treat parkinsonism and is also classified as an antihistamine.

A patient has Parkinson’s disease. Apomorphine (Apokyn), a dopamine agonist, has been prescribed for periods of hypomobility. What will the nurse teach the patient regarding administration of the drug?

The drug will be injected intramuscularly three times a day in a range of 1.0 to 1.5 mL.

The drug will be given intravenously, 50 mg every third day.

The drug will be administered subcutaneously three times a day with a dosage range of 2 to 6 mg.

The drug is taken orally, 20 mg three times a day.

Ans:

C Feedback: The drug is administered subcutaneously three times a day in a range of 2 to 6 mg per dose. A dosing pen is available for patient use. The other options are inappropriate for this drug.

An order is written for a drug that is an adjunctive therapy for Parkinson’s disease. The nurse reviews the order before administering the drug. What medication orders should the nurse question?

Levodopa 0.5 to 1 g/d orally in 2 divided doses

Amantadine (Symmetrel) 200 mg orally b.i.d.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Tolcapone (Tasmar) 400 mg orally t.i.d.

Selegiline (Carbex) 10 mg/d orally

Ans:

392

Feedback: The order for tolcapone should be questioned. The maximum dose is 600 mg daily. The order is a total of 1,200 mg a day (400 times 3 equals 1,200 mg). The other options are correct dosages. 10.

The expected outcome for a patient taking benztropine as drug therapy for Parkinson’s disease would be what?

Decrease in rigidity

Decrease in light-headedness

Decrease in disorientation

Decrease in flushing

Ans:

A Feedback: Benztropine should cause a decrease in rigidity. Light-headedness, disorientation, and flushing are all adverse effects of benztropine and can be expected with a patient taking this drug.

11.

A patient is newly diagnosed with parkinsonism. Parkinsonism, which may occur in association with long-term use of antipsychotics, can be treated with what drug type?

Anticholinergic agents

Monoamine oxidase inhibitors (MAOIs)

Synthetic antiviral agents

Dopaminergic drugs

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

393

Anticholinergic drugs that are centrally active are useful in treating parkinsonism. MAOIs, synthetic antiviral agents, and dopaminergic agents are incorrect. 12.

The nurse is presenting an educational event to a local community group on Parkinson’s disease. What will the nurse tell the attendees causes the classic Parkinson’s disease symptoms?

Decreased enzyme aromatic l-amino acid decarboxylase (AADC)

Increased gamma-aminobutyric acid (GABA)

Brain lesions

Degeneration of dopamine-producing nerve cells

Ans:

D Feedback: Classic Parkinson’s disease results from destruction or degenerative changes in dopamine-producing nerve cells in an area of the brain that controls movement.

13.

The nurse has a patient who is receiving selegiline (Carbex, Eldepryl). What is the nurse’s priority assessment?

Irregular heart rate

Elevated blood pressure

Decreased urinary output

Gingival hyperplasia

Ans:

B Feedback: The excessive stimulation of the sympathetic nervous system can cause severe hypertension and stroke so it is important for the nurse to assess blood pressure. Gingival hyperplasia is an adverse effect of phenytoin (Dilantin). Irregular heart rate and decreased urinary output are not adverse effects of selegiline.

14.

The nurse is speaking to a group at the senior citizen’s center about Parkinson’s disease and explains the importance of avoiding what when taking an anticholinergic medication?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Strenuous exercise in high environmental temperatures

Fluids high in potassium

Foods high in vitamin K

Anything containing red dye

Ans:

394

Feedback: Anticholinergic drugs decrease sweating. As a result, the body is not as effective at reducing internal temperature as this could result in fever and heatstroke. Elderly people taking anticholinergic drugs do not need to avoid fluids high in potassium, foods high in vitamin K, or anything containing red dye. 15.

When providing patient teaching for older adults, the nurse employs what priority strategy to improve patient understanding?

Repetition

Meticulous detail

Extensive written teaching

Family involvement

Ans:

C Feedback: The drugs that are used to manage Parkinson’s disease are associated with many adverse effects in older people with long-term problems. In many cases, other pharmacotherapeutic agents are given to counteract the adverse effects of these drugs. So patients then have complicated drug regimens with many associated adverse effects and problems. Consequently, it is essential for these patients to have extensive written drug-teaching protocols. Repetition, attention to detail, and family involvement can further improve effectiveness of teaching, but providing written instructions is the highest priority strategy.

16.

A patient, newly diagnosed with Parkinson’s disease, has been prescribed an anticholinergic drug. What common adverse effect of anticholinergic agents used for the treatment of Parkinson’s disease will the nurse share with the patient?

Blood dyscrasias

Diaphoresis

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Memory loss

Diarrhea

Ans:

395

Feedback: Most people diagnosed with Parkinson’s disease are older adult men so it is important for the nurse to warn the patient that memory loss may occur to reduce anxiety the patient may experience with this adverse effect. Blood dyscrasias are not associated with these drugs. Constipation is more likely than diarrhea and lack of sweating rather than diaphoresis is associated with anticholinergics. 17.

The nurse often gives another drug with levodopa (L-dopa) to decrease the amount of levodopa needed to reach a therapeutic level in the brain, thereby reducing adverse effects? What is the name of this drug?

Bromocriptine

Carbidopa

Amantadine

Trihexyphenidyl

Ans:

B Feedback: Carbidopa is frequently given with levodopa in a fixed-dose combination product called Sinemet or Sinemet CR. When used with carbidopa, the enzyme dopa decarboxylase is inhibited in the periphery, diminishing the metabolism of levodopa in the gastrointestinal (GI) tract and in peripheral tissues, thereby leading to higher levels crossing the bloodbrain barrier. Because carbidopa decreases the amount of levodopa needed to reach a therapeutic level in the brain, the dosage of levodopa can be decreased, which reduces the incidence of adverse effects. Bromocriptine, amantadine, and trihexyphenidyl may be effective longer than levodopa but are not usually prescribed together.

18.

When the nurse develops a plan of care for a patient newly diagnosed with Parkinson’s disease, the nurse includes what appropriate goal for this patient?

Deficient knowledge related to the disease process

Increase compliance with drug regimen as evidenced by no missed dosages within 1 week of discharge

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Risk for injuries related to the disease process

Symptom improvement as demonstrated by ability to ambulate the length of the hall within 24 hours of starting medication

Ans:

396

Feedback: One goal of drug therapy is to reduce symptoms to allow for more normal movement involving muscles. Goals should be specific and measurable, so the ability to ambulate the length of the hall is a valid assessment. The patient cannot increase compliance when he or she has not been lacking in compliance because this is a new diagnosis. Deficient knowledge and risk for injury are nursing diagnoses and not goals. 19.

The nurse is teaching a new patient about levodopa (L-dopa). What is important to instruct the patient to avoid using concurrently with L-dopa?

Aspirin compounds

Multivitamin-mineral preparations

Alcohol

Antianginal agents

Ans:

B Feedback: Iron preparations and multivitaminmineral preparations containing iron should not be given with Ldopa. Aspirin compounds, alcohol, and antianginal agents are not contraindicated in concurrent therapy with L-dopa.

20.

When carbidopa is given with levodopa (L-dopa), the dosage of L-dopa must be reduced. What would the reduction of L-dopa cause?

Heightened levels of sedation

Prolonged effect of medications

Decreased adverse effects

Decreased effectiveness of symptom control

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

397

C Feedback: Because carbidopa decreases the amount of L-dopa needed to reach a therapeutic level in the brain, the dosage of L-dopa can be decreased, which reduces the incidence of adverse effects. Other options are incorrect.

21.

What is the main purpose of the drugs used to treat Parkinson’s disease?

Adjust the balance of neurotransmitters.

Make the catechol-O-methyltransferase (COMT) inhibitors work better.

Substitute monoamine oxidase inhibitors (MAOIs) for dopamine agonists.

Increase the actions of acetylcholine in the brain.

Ans:

A Feedback: Drugs used in Parkinson’s disease increase levels of dopamine (levodopa, dopamine agonists, monoamine oxidase [MAO] inhibitors, COMT inhibitors) or inhibit the actions of acetylcholine (i.e., anticholinergic agents) in the brain. Thus, the drugs help adjust the balance of neurotransmitters.

22.

The nurse is teaching a group of student nurses about Parkinson’s disease. The nurse would determine teaching was successful if the students identified what neurotransmitters as imbalanced in Parkinson’s disease?

Cholinergic and anticholinergic neurotransmitters

Gamma-aminobutyric acid (GABA) and dopamine

GABA and anticholinergic neurotransmitters

Dopamine and acetylcholine

Ans:

D Feedback: The correct balance of dopamine and acetylcholine is important in regulating posture, muscle tone, and voluntary movement. People with Parkinson’s disease have an imbalance in these neurotransmitters, resulting in a decrease in inhibitory brain dopamine and a relative increase in excitatory acetylcholine.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

23.

398

The nurse is caring for a patient diagnosed with Parkinson’s disease who has been prescribed an anticholinergic drug. When are anticholinergic drugs usually added to the therapeutic regimen?

When symptoms increase

Sporadically to reduce development of toleration to levodopa

When levodopa does not elicit a therapeutic response

During the end stage of the disease process

Ans:

C Feedback: Although anticholinergics are not as effective as levodopa in the treatment of advancing cases of the disease, they may be useful as adjunctive therapies and for patients who no longer respond to levodopa. They are not withheld until symptoms advance or end-stage symptoms occur and they are not given sporadically.

24.

2 Drugs in Focus Anticholinergic Agents

Combines with anticholinergic receptors to increase the action of levodopa

Stimulates postsynaptic dopamine receptors directly

Combines with anticholinergic receptors to increase dopamine action

Inhibits postsynaptic dopamine receptors directly

Ans:

B Feedback: Ropinirole is a newer drug that directly stimulates dopamine receptors. It is also used to treat restless legs syndrome. The other options are incorrect because ropinirole only works as a dopamine receptor stimulant.

25.

A home health nurse is visiting an elderly patient with Parkinson’s disease. What would the nurse assess this man for related to common adverse effects?

Blood dyscrasias

Increased dopamine activity

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Pliability

Urinary retention

Ans:

399

Feedback: The nurse would assess the patient for urinary retention because this reaction is caused by loss of muscle tone in the bladder and is most likely to occur in elderly men who have enlarged prostate glands. Parkinson’s does not generally cause blood dyscrasias. The nurse cannot assess for increased dopamine activity except to assess for reduced symptoms caused by medication therapy. Pliability is a distracter for this question. 26.

What patient is most likely to be diagnosed with Parkinson’s disease?

A 45-year-old woman

A 35-year-old man

A 55-year-old person of either gender

A 60-year-old man

Ans:

D Feedback: Although Parkinson’s disease may affect people of any age, gender, or nationality, the frequency of the disease increases with age. This debilitating condition, which affects men more often than women, may be one of many chronic problems associated with aging.

27.

The nurse is teaching a patient about antiparkinson drugs. What drug would the nurse expect to be prescribed for the patient experiencing wearing off of drug effects?

Pramipexole

Entacapone

Ropinirole

Amantadine

Ans:

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400

Feedback: Entacapone is an adjunctive drug that is prescribed when a patient with Parkinson’s disease has a wearing off effect of his or her other Parkinson’s medications, meaning the drugs previously prescribed are having less of an effect. Therefore, options A, C, and D are incorrect. 28.

While providing patient education for a patient newly diagnosed with Parkinson’s disease and his or her family, the nurse will explain that Parkinson’s disease is characterized by what?

Reduced cognitive function

Abnormalities in stature

Postural instability

Reduced nerve transmission

Ans:

C Feedback: Parkinson’s disease is a chronic, progressive, and degenerative disorder of the central nervous system (CNS) characterized by abnormalities in movement and posture (e.g., tremor, bradykinesia, joint and muscular rigidity, postural instability).

29.

The nurse is assessing a patient who was prescribed levodopa 1 week earlier. How might the nurse evaluate the effectiveness of drug therapy?

Stable mood

Psoriasis

Drugdrug interactions with dopaminergic agents

Improvement in handwriting

Ans:

D Feedback: The nurse would evaluate the patient for improvement in function and reduction in symptoms. With preparations containing levodopa and with dopaminergic agents, assess for improvement in mobility, balance, posture, gait, speech, handwriting, and ability to provide self-care. Drooling and seborrhea may be abolished, and mood may be elevated. Stable mood and psoriasis are not findings associated

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401

with Parkinson’s disease. Assessing for drugdrug interactions is an important nursing assessment but it is not related to evaluating effectiveness of the drug. 30.

When describing Parkinson’s disease to a patient with a new diagnosis, what statement made by the nurse would be accurate?

Parkinson’s disease can be cured if medication is taken regularly as prescribed.

Degeneration of the neurons is arrested by medication.

Surgical procedures involving the basal ganglia have had varying degrees of success.

Diet-related therapy is the primary treatment for managing Parkinson’s disease.

Ans:

C Feedback: Surgical procedures involving the basal ganglia have been tried with varying success at prolonging the physical degeneration caused by this disease. Drug therapy remains the primary treatment. At this time, no available treatment arrests the neuron degeneration of Parkinson’s disease and the eventual decline in patient function.

31.

What is the primary reason a nurse might administer an antiparkinsonism drug to a child?

New-onset Parkinson’s disease

Drug abuse

Fibromyalgia

Parkinsonian symptoms

Ans:

D Feedback: The incidence of Parkinson’s disease in children is very low. Children do, however, experience parkinsonian symptoms as a result of drug adverse effects, not of drug abuse. Fibromyalgia is not usually diagnosed in children either.

32.

The nurse is caring for a patient who is unable to swallow properly. What drug would the nurse expect to be prescribed? Apomorphine (Apokyn)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Bromocriptine (Parlodel)

Levodopa (Dopar)

Ropinirole (Requip)

Ans:

402

Feedback: Only apomorphine can be given parenterally so this would be an appropriate drug to give to a patient with difficulty swallowing. Bromocriptine, levodopa, and ropinirole are only given in oral formulations. 33.

How does the drug levodopa contrast with dopamine? (Select all that apply.)

Levodopa is a precursor of dopamine.

Levodopa crosses the bloodbrain barrier.

Levodopa is converted to dopamine.

Levodopa is effective for 8 to 10 years.

Dopamine returns to levodopa for metabolism.

Ans:

A, B, C Feedback: Levodopa is a precursor of dopamine, which is deficient in parkinsonism; it crosses the bloodbrain barrier, where it is converted to dopamine and acts as a replacement neurotransmitter; it is effective for 2 to 5 years in relieving the symptoms of Parkinson’s disease.

34.

The nurse is preparing to administer the patient’s first dosage of trihexyphenidyl (Artane). What will the nurse tell the patient about the dosage?

Initial dose is 1 to 2 mg and then dosage is titrated up to manage symptoms of disease.

Initial dose is 6 mg to establish serum levels and then 1 mg is taken daily.

A 5-mg dose is taken orally twice a day starting with first dose.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Take 1 to 2 mg orally every day starting with first dosage.

Ans:

403

Feedback: Trihexyphenidyl (Artane) is given 1 to 2 mg orally daily initially and then titrated up to 6 to 10 mg/d with a maximum of up to 15 mg/d to control symptoms. Trihexyphenidyl is an adjunctive therapy to levodopa in treatment of parkinsonism but it can be used alone for the control of drug-induced extrapyramidal disorders.

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404

Chapter 25 - Muscle Relaxants

The nurse is teaching a class on muscular coordination and explains it is the movement of what electrolyte that contributes to the process of muscle contraction and relaxation?

Calcium

Chloride

Magnesium

Hydrogen

Ans:

A Feedback: Calcium is released from the sarcoplasmic reticulum, which leads to the binding of calcium with troponintropomyosin. This leads to contraction of the muscle fiber. The calcium pump then moves calcium back into the sarcoplasmic reticulum, which leads to relaxation of muscle fiber. Chloride, magnesium, and hydrogen are not involved in this process.

A mother brings her 9-year-old son to the clinic for a routine check up. The 9-year-old boy has cerebral palsy and is very spastic. The mother asks the nurse what causes the spasticity in her son. What is the nurse’s best response?

Your son’s spasticity is caused by injury to the muscle tissue.

Your son’s spasticity is caused by deficiency of a neurotransmitter called serotonin.

Your son’s spasticity is caused by damaged sensory neurons.

Your son’s spasticity is caused by damaged motor neurons.

Ans:

D Feedback: Muscle spasticity is the result of damage to neurons within the central nervous system (CNS) rather than injury to peripheral structures such as the musculoskeletal system. Serotonin is not involved in the process of muscle contraction and relaxation. Although acetylcholine is released and increases muscle cell membrane permeability to sodium, which eventually leads to the release of calcium, this process does play a vital part in muscle contraction and relaxation.

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405

A nurse is providing discharge teaching for a patient who will be going home on cyclobenzaprine (Flexeril) prescribed for his acute musculoskeletal pain. The nurse will stress that the patient should avoid what?

Drinking alcohol

Taking antiemetics

Taking antihistamines

Taking antibiotics

Ans:

A Feedback: Taking cyclobenzaprine with alcohol can cause an increase in central nervous system depression. The nurse should stress that this combination should be avoided due to possible injury or severe body system depression that could lead to coma or death. No significant concerns exist with the use of antiemetics, antihistamines, or antibiotics with this drug.

The nurse provides patient teaching about chlorzoxazone (Paraflex) in preparation for the patient’s discharge to home. The nurse evaluates the patient understands potential adverse effects when the patient makes what statement?

This drug can cause diarrhea.

My urine may turn orange to purple red while taking this drug.

My skin may turn yellow but that will go away when I stop taking the drug.

After I take a pill it will take 2 to 3 hours before I feel the effects.

Ans:

B Feedback: The patient indicates an understanding of adverse effects of this drug by stating that his urine may be discolored while using the drug. Chlorzoxazone may discolor the urine, which will turn orange to purple-red when metabolized and excreted. Patients should be warned about this effect to prevent any fears of blood in the urine. Chlorzoxazone usually causes constipation, not diarrhea. The onset of action is usually within an hour after the drug has been taken. Yellow discoloration of the skin would indicate liver damage or dysfunction, which should be reported immediately.

The nurse admits a child diagnosed with tetanus. What medication will the nurse expect to administer?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Methocarbamol (Robaxin)

Baclofen (Lioresal)

Dantrolene (Dantrium)

Diphenhydramine (Benadryl)

Ans:

406

Feedback: Methocarbamol is the drug of choice if a child needs to be treated for tetanus. Baclofen and dantrolene are not recommended for use with children. Diphenhydramine is not indicated for treatment of tetanus. 6.

A 20-year-old female patient has been diagnosed with multiple sclerosis. What drug will most likely be prescribed?

Baclofen (Lioresal)

Cyclobenzaprine (Flexeril)

Metaxalone (Skelaxin)

Orphenadrine (Banflex)

Ans:

A Feedback: Baclofen is used for treatment of muscle spasticity associated with neuromuscular diseases such as multiple sclerosis. Cyclobenzaprine, metaxalone, and orphenadrine are used for relief of discomfort associated with painful, acute musculoskeletal conditions.

The nurse is caring for four patients. Which patient would have the highest risk for hepatotoxicity from dantrolene (Dantrium)?

An 87-year-old man who is taking a cardiac glycosideh

A 32-year-old man who is taking an antipsychotic drug

A 65-year-old woman who is on hormone replacement therapy

A 48-year-old woman who is taking an antihypertensive agent

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Ans:

407

C Feedback: If dantrolene is combined with estrogen, the incidence of hepatocellular toxicity is increased. This combination should be avoided. Nothing indicates that patients taking a cardiac glycoside, an antipsychotic drug, and an antihypertensive would have serious adverse effects when combined with dantrolene therapy.

The nurse alerts the patient to what adverse effect of tizanidine (Zanaflex) that could cause injury?

Constipation

Dry mouth

Fatigue

Hypotension

Ans:

D Feedback: Tizanidine has been associated with hypotension, which could be a safety risk especially if the patient is also taking an antihypertensive drug. Constipation, dry mouth, and fatigue are common adverse effects that do not pose a safety risk.

A young woman attends a Botox Party and is injected with botulinum toxin type A to decrease frown lines between her eyebrows. Later that evening the patient is admitted to the emergency department and is hysterical, because she cannot move her eyebrows. The nurse explains that that toxin causes what?

The toxin causes muscle death, which smoothes wrinkles in the area.

The toxin causes muscle paralysis, preventing movement and relieving wrinkles.

The drug is a toxin to nerves in the area.

The drug is a permanent muscle relaxant and the muscles will never move again.

Ans:

B Feedback: Botulinum toxin types A and B bind directly to the receptor sites of motor nerve terminals and inhibit

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the release of acetylcholine, leading to local muscle paralysis. These two drugs are injected locally and used to paralyze or prevent the contractions of specific muscle groups. The action smoothes wrinkles in the area, but does not cause muscle death. The effect is temporary and does not cause nerve death. The other options are false statements. 10.

A patient has stepped on a rusty nail and is exhibiting signs of muscle rigidity and contractions. The patient’s wife called the emergency department (ED) and the triage nurse told her to bring him in. The ED nurse will have which drug available for administration when the patient arrives?

Carisoprodol (Soma)

Cyclobenzaprine (Flexeril)

Metaxalone (Skelaxin)

Methocarbamol (Robaxin)

Ans:

D Feedback: The patient is exhibiting signs of tetanus and methocarbamol (Robaxin) is indicated for treatment. Carisoprodol, cyclobenzaprine, and metaxalone are not used to treat tetanus.

11.

The nurse assesses a newly admitted patient and finds the muscle tone in his left leg has sustained muscle contraction. How will the nurse document this finding?

Tonus

Flaccid

Atonic

Spastic

Ans:

D Feedback: Muscle spasticity is defined as a sustained muscle contraction. Soft and flabby muscle tone is defined as atonic. A limp muscle without tone is described as flaccid. The state of readiness, known as muscle tone (tonus), is produced by the maintenance of some of the muscle fibers in a contracted state.

12.

A patient comes to the clinic to receive a Botox injection in her forehead. The patient has adult acne across her forehead. What is the nurse’s priority action?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Hold the injection and consult the health care provider.

Cleanse the area well with an antibacterial soap.

Apply a topical antibiotic after administering the Botox.

Provide patient information about post-Botox injection care.

Ans:

409

Feedback: Botulinum toxins should not be injected into any area with an active infection because of the risk of exacerbation of the infection. As a result, the nurse would hold the injection and consult with the physician, with the expectation the medication would be held until the acne resolved. Cleansing the area well, applying a topical antibiotic, and providing information about postinjection care would not resolve the problem and are not indicated. 13.

The patient presents to the emergency department with muscle spasms in the back. What types of injury would the nurse recognize can result in muscle spasm? (Select all that apply.)

Overstretching a muscle

Wrenching a joint

Tearing a tendon or ligament

Breaking a bone

Exercising too vigorously.

Ans:

A, B, C Feedback: Muscle spasms often result from injury to the musculoskeletal system (e.g., overstretching a muscle, wrenching a joint, tearing a tendon or ligament). These injuries can cause violent and painful involuntary muscle contractions. Breaking a bone or exercising would not cause muscle spasms unless one of the other options was involved.

14.

The nurse is giving discharge instructions to a patient who just had Botox A injections around her eyes. What adverse effects would the nurse include in her discharge instructions? (Select all that apply.) Respiratory infections

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Flu-like syndrome

Droopy eyelids

Cough

Diarrhea

Ans:

A, B, C

410

Feedback: Adverse effects associated with use of botulinum toxin type A for cosmetic purposes include headache, respiratory infections, flu-like syndrome, and droopy eyelids in severe cases. Adverse effects do not include cough or diarrhea. 15.

A patient with severe spasticity sees his physician. The physician orders dantrolene. In what circumstances is the drug dantrolene contraindicated?

Spasticity that contributes to upright position

Spasticity that involves both legs

Spasticity that involves the arm and the leg on the same side

Spasticity that contributes to mobility

Ans:

A Feedback: Dantrolene is contraindicated in the presence of any known allergy to the drug. It is also contraindicated in the following conditions: spasticity that contributes to locomotion, upright position, or increased function, which would be lost if that spasticity was blocked; active hepatic disease, which might interfere with metabolism of the drug and because of known liver toxicity; and lactation because the drug may cross into breast milk and cause adverse effects in the infant. The other options would not contraindicate the medication.

16.

Which muscle relaxant was found to be embryotoxic in animal studies?

Carisoprodol (Soma)

Botulinum toxin A (Botox)

Cyclobenzaprine (Flexeril)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Dantrolene (Dantrium)

Ans:

411

Feedback: Dantrolene crosses the placenta and was found to be embryotoxic in animal studies. Botulinum toxin A, carisoprodol, and cyclobenzaprine are not known to be embryotoxic. 17.

When spinal reflexes involve synapses with interneurons within the spinal cord, what physiological adjustments are made?

Coordinate movement and position

Adjust response and recovery

Adjust to upright position

Coordinate balance

Ans:

A Feedback: Other spinal reflexes may involve synapses with interneurons within the spinal cord, which adjust movement and response based on information from higher brain centers to coordinate movement and position. Spinal reflexes do not adjust response and recovery, adjust the body to the upright position, or coordinate balance.

18.

What are the simplest nerve pathways in the body?

Arc reflexes

Spinal reflexes

Afferent nerve reflexes

Spindle gamma loop

Ans:

B Feedback:

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The spinal reflexes are the simplest nerve pathways that monitor movement and posture. Arc reflexes and afferent nerve reflexes are distracters for this question. Spindle gamma loops respond to stretch receptors. 19.

The anatomy and physiology instructor is discussing reflex systems with the prenursing class. What system would the instructor say causes a muscle fiber contraction that relieves the stretch?

Arch reflex system

Spinal reflex system

Spindle gamma loop system

Stretch receptor system

Ans:

C Feedback: A spindle gamma loop system responds to stretch receptors or spindles on muscle fibers to cause a muscle fiber contraction that relieves the stretch. In this system, nerves from stretch receptors form a synapse with gamma nerves in the spinal cord, which send an impulse to the stretched muscle fibers to stimulate their contraction. These reflexes are responsible for maintaining muscle tone and keeping an upright position against the pull of gravity and are important in helping venous return when the contracting muscle fibers massage veins to help move the blood toward the heart. The arch reflex system and the stretch receptor system are distracters for this question. The spinal reflex system is not the reflex systems that respond to stretch receptors in the body.

20.

A 3-year-old girl with a diagnosis of spasticity caused by cerebral palsy has been admitted to the unit. The physician has ordered dantrolene to see if it relieves the spasticity in the child’s arms and hands. The nurse would schedule this child for what routine screenings?

Central nervous system and gastrointestinal (GI) function

Respiratory and cardiovascular (CV) function

Growth and development

Renal and hepatic function

Ans:

A Feedback: Children prescribed dantrolene should be routinely and regularly screened for central nervous system and gastrointestinal (including hepatic) toxicity. Growth and development should be routinely screened in all children. Renal, respiratory, and CV screening is not indicated.

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21.

413

A patient is admitted to the unit with central spasticity after a terrible motor vehicle accident. The doctor places an intrathecal delivery pump. What medication can be administered via this route to treat the central spasticity?

Baclofen (Lioresal)

Cyclobenzaprine (Flexeril)

Dantrolene (Dantrium)

Carisoprodol (Soma)

Ans:

A Feedback: Baclofen is available in oral and intrathecal forms and can be administered via a delivery pump for the treatment of central spasticity. Flexeril, dantrolene, and Soma are not administered intrathecally.

22.

Baclofen is a prototype drug for the centrally acting skeletal muscle relaxants. What adverse effects do drugs in this class have? (Select all that apply.)

Coronary artery disease

Hypotension

Urinary frequency

Dizziness

Bone marrow suppression

Ans:

B, C, D Feedback: Adverse effects include transient drowsiness, dizziness, weakness, fatigue, constipation, headache, insomnia, hypotension, nausea, and urinary frequency. Bone marrow suppression and coronary artery disease are not associated with therapy involving these drugs.

23.

When caring for a patient taking dantrolene, what adverse effects would the nurse monitor for? (Select all that apply.)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Bradycardia

Hepatitis

Urinary retention

Fatigue

Rash

Ans:

B, D, E

414

Feedback: Adverse effects of dantrolene include drowsiness, dizziness, weakness, fatigue, diarrhea, hepatitis, myalgia, tachycardia, transient blood pressure changes, rash, and urinary frequency. Adverse effects of dantrolene do not include bradycardia or urinary retention. 24.

The nurse is caring for a patient who is having a pump placed to deliver intrathecal baclofen and another patient who will receive dantrolene as a muscle relaxant. What nursing diagnosis would be appropriate for both care plans? (Select all that apply.)

Acute pain related to GI effects of drug

Risk for injury related to central nervous system (CNS) effects

Disturbed body image related to muscle pain

Disturbed thought processes related to CNS effects

Deficient knowledge related to procedure

Ans:

A, B, D Feedback: Acute pain related to GI effects of drug, risk for injury related to CNS effects, and disturbed thought processes related to CNS effects all apply to both patients. Disturbed body image may apply to the patient having the pump placed, but this is not related to muscle pain. Only the patient having the pump placed would need information related to the procedure.

25.

The nurse is caring for a patient who is being discharged home from the rehabilitation unit. Baclofen will be discontinued and the patient will begin taking carisoprodol as an outpatient. What is the nurse’s primary consideration about discontinuing administration of baclofen?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Taper drug over 72 hours to reduce dependence on the drug.

Alternate doses of baclofen and soma over 10 days to prevent drug withdrawal.

Taper drug slowly over 1 to 2 weeks to prevent psychoses and hallucinations.

Start carisoprodol immediately while continuing baclofen at full dose to establish carisoprodol level.

Ans:

415

Feedback: If using baclofen, taper drug slowly over 1 to 2 weeks to prevent the development of psychoses and hallucinations. Giving both drugs at once would risk toxicity and serious adverse effects and would never be done. 26.

The nurse is caring for a patient receiving intrathecal baclofen via pump while participating in rigorous rehabilitation therapy. What is the nurse’s priority to monitor related to adverse effects of this drug?

Blood pressure

Pulse pressure

Spasticity

Respiratory status

Ans:

D Feedback: The priority to monitor is respiratory status. One of the primary adverse effects of this drug is central nervous system (CNS) depression. If the patient receives too much medication, or reaches toxic levels, respiratory rate will decline as the result of excessive CNS depression and the drug dosage will either be adjusted downward or the drug may be held until the patient’s respirations improve. Monitoring other vital signs including blood pressure and pulse is indicated but is not the priority.

27.

A patient has been diagnosed with multiple sclerosis and experiences spasticity in several muscle groups. What drug would the nurse anticipate will be ordered as the drug of choice to manage spasticity associated with neuromuscular diseases?

Dantrolene (Dantrium)

Baclofen (Lioresal)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Carisoprodol (Soma)

Botulinum toxin type B (Myobloc)

Ans:

416

Feedback: Dantrolene directly affects peripheral muscle contraction, and has become important in the management of spasticity associated with neuromuscular diseases. Baclofen, carisoprodol, and botulinum toxin type B are not the drugs of choice for management of spasticity in neuromuscular disease. 28.

The nurse is caring for a patient taking dantrolene. How would the nurse assess the therapeutic effects of this drug?

Observe the patient when emotionally stressed to assess for exacerbation of spasticity.

Discontinue the drug for 2 to 4 days and assess for exacerbation of spasticity.

Measure the amount of spasticity before and after administration of medication.

Collect a thorough history to ask the patient any improvement has been noticed.

Ans:

B Feedback: Periodically discontinue drug for 2 to 4 days to monitor therapeutic effectiveness. A clinical impression of exacerbation of spasticity indicates a positive therapeutic effect and justifies continued use of the drug. It would not be ethical to stress the patient, there is no known measurement of spasticity, and the patient may not be able to relate how much improvement was felt because it is unlikely all spasticity will be eliminated.

29.

What drug would the nurse expect to administer to the patient experiencing malignant hyperthermia?

Orphenadrine

Metaxalone

Chlorzoxazone

Dantrolene

Ans:

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417

Feedback: Indications for dantrolene include control of clinical spasticity resulting from upper motor neuron disorders; preoperatively to prevent or attenuate the development of malignant hyperthermia in susceptible patients; IV for management of fulminant malignant hyperthermia. The other drugs are not indicated for treatment of malignant hyperthermia. 30.

What part of the brain does the nurse recognize the patient is using when making precise, intentional movements?

Pyramidal tract

Substantia nigra

Broca’s area

Extrapyramidal tract

Ans:

A Feedback: Upper-level controls of muscle activity include the pyramidal tract in the cerebellum, which regulates precise intentional muscle movement, and the extrapyramidal tract in the cerebellum and basal ganglia, which coordinates crude movements related to unconscious muscle activity. Broca’s area has to do with speech, not movement. The substantia nigra does not control muscle movement.

31.

The patient reports pain caused by muscle spasms in his back. The nurse assesses the patient as being very anxious and notes how the anxiety results in tensing of muscles. What medication would be most effective in treating this patient?

Baclofen (Lioresal)

Botulinum toxin type B (Myobloc)

Dantrolene (Dantrium)

Diazepam (Valium)

Ans:

D Feedback: Adults complaining of muscle spasm pain that may be related to anxiety often respond very effectively to diazepam, which is a muscle relaxant and anxiolytic. Although many drugs, including baclofen, will

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418

treat the muscle spasm, diazepam also reduces anxiety. Dantrolene would be better indicated for spasticity than for spasm and botulinum toxin type B is not prescribed for either anxiety or muscle spasm. 32.

What is the drug of choice for an older adult or a patient with hepatic or renal impairment?

Baclofen

Carisoprodol

Chlorzoxazone

Cyclobenzaprine

Ans:

B Feedback: Carisoprodol is the centrally acting skeletal muscle relaxant of choice for older patients and for those with hepatic or renal impairment. Although the other options may be prescribed, older adults are more likely to experience the adverse effects associated with the drug.

33.

After administering a centrally acting skeletal muscle relaxant, what other independent nursing measures might the nurse implement to relieve pain and reduce spasm?

Rest of the affected muscle

Application of cold

Physical therapy

Order of a nonsteroidal anti-inflammatory drug

Ans:

A Feedback: Other measures in addition to drugs should be used to alleviate muscle spasm and pain. The nurse can independently encourage rest of the affected muscle and provide heat applications to increase blood flow to the area to remove the pain-causing chemicals.

34.

The nurse is caring for a patient with an infusing IV who is allowed noting by mouth due to a paralytic ileus. What centrally acting medication could the nurse administer to this patient? Chlorzoxazone (Paraflex)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Carisoprodol (Soma)

Cyclobenzaprine (Flexeril)

Orphenadrine (Banflex)

Ans:

419

Feedback: Only orphenadrine (Banflex) of these options can be given parenterally, either IV or intramuscularly. The other options are available for oral use only. 35.

What is the maximum daily dose of cyclobenzaprine (Flexeril) the nurse can administer?

20 mg

30 mg

40 mg

60 mg

Ans:

D Feedback: The normal daily dosage of cyclobenzaprine is 10 mg taken orally t.i.d., and it can be increased to a maximum of 60 mg per day.

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420

Chapter 26 - Narcotics, Narcotic Antagonists, and Antimigraine Agents

A geriatric patient received a narcotic analgesic before leaving the post-anesthesia care unit to return to the regular unit. What is the priority nursing action for the nurse receiving the patient on the regular unit?

Administer a non-steroidal anti-inflammatory drug.

Encourage fluids.

Create a restful, dark, quiet environment.

Put side rails up and place bed in low position.

Ans:

D Feedback: Older patients are more susceptible to the central nervous system effects of narcotics; it is important to ensure their safety by using side rails and placing the bed in the low position in case the patient tries to get up unaided. Postoperative patients are allowed nothing by mouth until bowel function returns so an oral medication or encouraging fluids would not be appropriate. This patient will require careful observation for respiratory depression, so a dark room would be unsafe.

A patient who is experiencing severe pain is administered a narcotic. What would the nurse write in the plan of care as a desirable and measurable outcome for this patient?

A shorter period of time between requests for medication

Reduced complaints about limited movement

Lack of restlessness and ability to sustain one position

Increased autonomy in providing AM care

Ans:

D Feedback: Monitor patient response to the drug (e.g., relief of pain, sedation).When pain is being adequately managed with opioid therapy, a desirable and measurable outcome would be that the patient is able to be more autonomous in providing care in the morning. Shorter periods between requests for medication would not be a desirable outcome because it is not an indicator of pain control given that some patients are reluctant to ask for medicine even though they are in pain. Patients in pain tend not to move for fear

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421

of exacerbating the pain, so lack of movement can be an indication the patient is in pain. Just because the patient does not complain of pain doesn’t mean he isn’t experiencing pain. 3.

The health care provider orders oral (PO) codeine as an adjunctive therapy to pain control medication. What order would be appropriate for the nurse to administer?

Codeine 5 mg PO every 6 hour

Codeine 10 mg PO every 4 hour

Codeine 15 mg PO every 2 hour

Codeine 20 mg PO every 4 hour

Ans:

D Feedback: The correct dosage for codeine administered for pain by mouth is 15 to 60 mg q 4 to 6 hour. The other options are incorrect oral dosages because they are too low a dose or give an incorrect dosing frequency.

A patient with migraine headaches is changed from an ergot to a prescription for a triptan. The nurse has completed teaching related to the drug. What statement would indicate she has a clear understanding of the new drug?

My life is over. I can’t function not knowing when I’m going to have a headache.

I will not have to avoid driving because this medication isn’t sedating.

I should not experience as many adverse effects from my new medication.

I take my medication every hour when I have a headache.

Ans:

C Feedback: Triptans are a new class of selective serotonin receptor blockers that cause vasoconstriction; they are not associated with as many systemic adverse effects experienced in ergot therapy. Triptan therapy will enable her to live a near normal life even during headaches. Although adverse effects are fewer than those associated with ergot therapy, triptans can still cause dizziness, feelings of strangeness, and vertigo, so the patient should not drive while taking the drug. Medications are often only taken once due to prolonged half-lives, but some may be repeated in 2 to 4 hours if the headache does not subside.

The nurse receives an order for a triptan for a patient diagnosed with cluster headaches. What drug

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422

would be indicated for this purpose? A)

Almotriptan (Axert)

Frovatriptan (Frova)

Naratriptan (Amerge)

Sumatriptan (Imitrex)

Ans:

D Feedback: Sumatriptan, the first drug of this class, is used for the treatment of acute migraine attacks and for the treatment of cluster headaches in adults. No other triptans are approved for treatment of cluster headaches.

Before administering an ergot drug to the patient for the first time, the nurse would assess the patient’s currently prescribed medications for what drug?

Antidiabetic agents

Beta adrenergic blockers

Oral contraceptives

Selective serotonin reuptake inhibitors (SSRIs)

Ans:

B Feedback: The concurrent use of beta blockers and ergot preparations increases the patient’s risk for peripheral ischemia and gangrene. This combination should be avoided. There is no indication for concern with the use of antidiabetic agents, SSRIs, and oral contraceptives with these drugs.

The anatomy and physiology instructor is talking about pain sensations. What produces pain sensations when stimulated by generating nerve impulses? (Select all that apply)

A-delta fibers

D-delta sensory nerves

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Mu receptors

Sigma-receptors

C fibers

Ans:

A, E

423

Feedback: Two small-diameter sensory nerves, A-delta and C fibers, respond to stimulation by generating nerve impulses that produce pain sensations. Large-diameter sensory nerves (i.e., A fibers) transmit sensations associated with touch and temperature. Mu-receptors are primarily pain-blocking receptors; sigma-receptors cause papillary dilation and may be responsible for the hallucinations, dysphoria, and psychoses that can occur with narcotic use. 8.

A nurse is caring for a 6-year-old patient after surgery. The child has an order for meperidine (Demerol) 1.8 mg/kg IM every 3 to 4 hour as needed for pain. The child weighs 30 kg and the meperidine is available as 50 mg/mL. How many mL will the nurse administer per dose?

1 mL

1.8 mL

0.8 mL

1.08 mL

Ans:

D Feedback: To calculate the correct amount to be administered, first multiply 1.8 mg times 30 kg (54 mg). Next determine the volume in mL that 54 mg is equal to (50 mg: 1 mL as 54 mg: × mL). Solve forx (50x is equal to 54 mg; 54 divided by 50 is equal to 1.08 mL).

A patient with a migraine took a dose of a prescribed triptan, eletriptan (Relpax), and 1 hour later the headache is still intense. The patient’s husband calls the clinic and asks the nurse what they should do. What is an appropriate nursing response?

Tell her to lie down in a quiet cool room and just wait it out. It will subside.

She can take another dose of the drug 2 hours after the initial dose if the headache continues.

Give her a dose of an ergot drug if you have it. It will decrease the intensity of the pain.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ibuprofen may increase the action of the triptan.

Ans:

424

Feedback: A patient taking eletriptan to relieve a migraine can take another dose in 2 hours if the headache is not relieved. The combination of ergot drugs with triptans is not indicated because of the vasoconstriction caused by both. The patient will not get relief by waiting it out. Ibuprofen is an anti-inflammatory that does not affect the mechanism associated with migraines. 10.

The nurse is caring for a patient who is receiving an opioid analgesic. What are the nurse’s priority assessments?

Pain intensity and blood glucose level

Level of consciousness and respiratory rate

Respiratory rate and electrolytes

Urine output and pain intensity

Ans:

B Feedback: The nurse should assess respiratory rate and level of consciousness because respiratory depression and sedation are adverse effects of opioid analgesics. Blood glucose levels, electrolytes, and urine output are not priority assessments with opioid ingestion.

11.

The nurse is caring for a patient experiencing postoperative pain. The physician orders 2.5 mg of morphine IV every two hours. Morphine is supplied in 10 mg/mL vials. How many mL will the nurse administer?

0.25 mL

0.5 mL

1 mL

2 mL

Ans:

A Feedback:

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10 mg = 1 mL and a dose of 2.5 mg is ordered. 10 mg/1 mL: 2.5 mg/x Cross-multiply to yield 2.5 mg = 10x. Divide each side by 10 to learn the nurse should administer 0.25 mL 12.

A 72-year-old patient is admitted to the hospital for surgery. After the patient returns to the floor, the patient’s daughter tells the nurse she is concerned that her mother will overdose on morphine because she keeps pressing the button on her patient-controlled anesthesia (PCA) pump. What is the nurse’s best response?

You should control how often she presses the button.

If she will follow the directions she was given, that will not happen.

The PCA device always provides the correct amount, so pressing the button is just for placebo effect.

The device is preset, so your mother cannot get more than a specific amount.

Ans:

D Feedback: A PCA system using morphine provides a baseline, constant infusion of morphine and gives the patient control of the system to add bolus doses of morphine if the patient believes that pain is not being controlled. The system prevents overdose by locking out extra doses until a specific period of time has elapsed. The PCA is for the patient to control the analgesia, not for a family member to control it because the patient will fall asleep when adequate pain control is reached. If the family keeps pushing the button while the patient’s level of consciousness continues to decline, serious overdosage could occur. Not following directions could result in inadequate pain management but not overdosage. The button delivers small bolus dosages so it is not a placebo effect.

13.

What drug might the nurse administer for both analgesic and antitussive effects?

Codeine

Aspirin

Ibuprofen

Acetaminophen

Ans:

A Feedback: Codeine is a narcotic drug used for its analgesic and antitussive effects. Aspirin, ibuprofen, and

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426

acetaminophen do not have antitussive effects. 14.

As the nurse settles the patient into his room after returning from the post-anesthesia care unit (PACU), the patient says he is in severe pain. The nurse checks the medical record and sees the patient has an order for morphine 4 to 8 mg every 1 to 2 hour IV as needed for pain. The nurse sees this medication has not been administered yet so the nurse administers 4 mg. After administering the drug, the PACU nurse calls to say a dose of morphine was given and not documented. What drug will the nurse be prepared to administer if the patient’s respiratory rate is depressed?

Naloxone hydrochloride tartrate (Narcan)

Butorphanol

Buprenorphine (Buprenex)

Nalbuphine hydrochloride (Nubain)

Ans:

A Feedback: Naloxone is the drug of choice for treatment of opioid overdose. Butorphanol (INN) is amorphinantype synthetic opioid analgesic that would not reverse the effects of an opioid. Buprenex (buprenorphine hydrochloride) is a narcotic-agonist-antagonist and would suppress respirations further. Nalbuphine is a synthetic opioid used commercially as an analgesic that would also depress respirations.

15.

The nurse is providing patient teaching about a prescribed opioid analgesic. What is an important teaching point related to a possible adverse effect of this drug?

Ataxia

Blurred vision

Hypotension

Dysrhythmias

Ans:

C Feedback: Orthostatic hypotension is commonly seen in association with some narcotics. Ataxia, blurred vision, and dysrhythmias are not commonly seen adverse effects of an opioid analgesic.

16.

The nurse receives an order for morphine sulfate 8 mg IV every 1 hour as needed for pain. For which

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427

patient would the nurse need to question this order? A)

A 78-year-old with osteoarthritis

A 45-year-old, 1-day postoperative mastectomy

A 28-year-old with a fractured tibia

A 17-year-old, 1-day postoperative appendectomy

Ans:

A Feedback: Older patients are more likely to experience the adverse effects associated with narcotics, including central nervous system, gastrointestinal, and cardiovascular effects. Furthermore, a strong narcotic analgesic would not be indicated for chronic osteoarthritis pain. For both of these reasons, the nurse would question the large dosage of a narcotic. The other patients could appropriately receive morphine 8 mg unless they were smaller than average adults.

17.

The nurse is administering morphine to a trauma patient for acute pain. Before administering the morphine, what common adverse effect should the nurse inform the patient about?

Paresthesia in lower extremities

Occipital headache

Increased intracranial pressure

Drowsiness

Ans:

D Feedback: Common adverse effects include dizziness, drowsiness, and visual changes. Morphine does not commonly cause paresthesia in the lower extremities, an occipital headache, or increased intracranial pressure.

18.

The nurse administers a narcotic analgesic to the postoperative patient. What is the best way for the nurse to evaluate response to the medication?

Observe the patient without her awareness.

Use a pain assessment tool before and 30 minutes after administration.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Assess vital signs.

Measure oxygen saturation.

Ans:

428

Feedback: A standard pain assessment tool should be used both pre- and post-analgesia. Observing the patient when she is not aware you are watching, assessing vital signs, and measuring oxygen saturation may all contribute useful data but it would not be the best means of determining pain response following analgesic administration. 19.

A patient, 6 days postoperative, is being weaned off an opioid analgesic. The patient reports he is getting no relief from the pain with the new non-opioid medication he is receiving. What might the nurse suspect is causing this patient’s pain?

The patient needs a higher dose of the opioid analgesic.

The patient has become addicted to the opioid medication.

The patient has developed withdrawal syndrome.

The patient has developed a cross-hypersensitive reaction.

Ans:

C Feedback: Caution should be used in cases of physical dependence on a narcotic because a withdrawal syndrome may be precipitated, the narcotic antagonistic properties can block the analgesic effect, and so intensify the pain. It is important to differentiate between addiction and dependence because addiction generally does not occur in patients receiving narcotics for medical reasons. There is no indication of a hypersensitivity reaction. Giving a higher dose of the opioid would eliminate the progress made to date on weaning the patient from the narcotic, so attempts should be made to avoid this intervention.

20.

Which narcotic analgesics can the nurse administer to a child because she has an established pediatric dose? (Select all that apply.)

Transdermal fentanyl

Methadone

Morphine

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Meperidine

Hydrocodone

Ans:

C, D, E Feedback: Narcotics that have an established pediatric dose include codeine, fentanyl (but not the transdermal form), hydrocodone, meperidine, and morphine. Methadone is not recommended as an analgesic in children.

21.

The home care nurse administers oral morphine to the patient with cancer pain. When will the nurse expect this medication to reach peak activity?

10 minutes

30 minutes

45 minutes

60 minutes

Ans:

D Feedback: With oral administration, peak activity occurs in about 60 minutes. The duration of action is 5 to 7 hours.

22.

Before administering an opiate medication, what will the nurse assess?

The patient’s weight

The patient’s heart rate

The patient’s respiratory rate

The patient’s drug tolerance

Ans:

C Feedback:

429

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

430

Check the rate, depth, and rhythm of respirations before each dose. If the patient’s heart rate is slower than 12 beats per minute, delay or omit the dose and report to the physician. Weight would be assessed before determining dosage. Heart rate would not be an essential assessment before administration. Drug tolerance is assessed by monitoring patient’s response to the medication and could not be assessed before administration. 23.

The nursing instructor asks the student nurse to explain the action of sumatriptan. What is the student’s best response?

Vasoconstrictive on cranial blood vessels

Depresses pain response in the central nervous system

Vasodilation of peripheral blood vessels

Binds to acetylcholine receptors to prevent nerve transmission

Ans:

A Feedback: Sumatriptan binds to serotonin receptors to cause vasoconstrictive effects on cranial blood vessels. The other options are incorrect.

24.

The nurse administers pentazocine cautiously to what population?

Patients with known GI disease

Patients with known heart disease

Patients with known urinary disease

Patients with known respiratory disease

Ans:

B Feedback: Pentazocine must be administered cautiously to patients with known heart disease because the drug may cause cardiac stimulation including arrhythmias, hypertension, and increased myocardial oxygen consumption, which could lead to angina, myocardial infarction, or congestive heart failure. No indication exists that it must be given cautiously to patients with gastrointestinal, urinary, or respiratory diseases.

25.

Narcotic agonists-antagonists have what function? (Select all that apply.)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Relief of moderate-to-severe pain

Adjunctive therapies to nonsteroidal anti-inflammatory drugs (NSAIDs)

Relief of pain during labor and delivery

Relief of orthopedic pain

Adjuncts to general anesthesia

Ans:

A, C, E

431

Feedback: These drugs have three functions: (1) relief of moderate-to-severe pain, (2) adjuncts to general anesthesia, and (3) relief of pain during labor and delivery. Adjunctive therapies to NSAIDs or specificity for orthopedic pain are not functions of this classification of medication. 26.

You are caring for a patient taking pentazocine (Talwin). What would be an appropriate nursing diagnosis for this patients care plan?

Fluid volume deficit related to diarrhea caused by medication

Risk for pain related to administration of medication

Monitor timing of analgesic doses.

Impaired gas exchange related to respiratory depression

Ans:

D Feedback: Nursing diagnosis may include impaired gas exchange related to respiratory depression. The drug is more likely to cause constipation due to slowing of the GI tract instead of diarrhea, so that fluid volume deficit would not be appropriate. Monitoring timing of analgesic doses is an intervention and not a nursing diagnosis. If the patient is receiving pentazocine that would indicate he is experiencing pain and is not just at risk for pain, and that the pain is not caused by the drug. The drug is given to reduce the pain so this diagnosis is incorrect.

27.

When evaluating the effects of narcotic agonist-antagonists on a patient, what adverse effects would the nurse monitor for? Hypertension

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Bleeding

Suppressed bone marrow function

Increased pulse pressure

Ans:

432

Feedback: Monitor for adverse effects (e.g., central nervous system changes, gastrointestinal (GI) depression, respiratory depression, arrhythmias, hypertension). Bleeding, bone marrow suppression, and increased pulse pressure are not normally seen with these drugs. 28.

What is the nurse’s priority assessment when administering narcotics to older adults? (Select all that apply.)

Central nervous system (CNS) effects

Gastrointestinal effects

Cardiovascular effects

Urinary effects

Developmental effects

Ans:

A, B, C Feedback: Older patients are more likely to experience the adverse effects associated with these drugs, including central nervous system, gastrointestinal (GI), and cardiovascular effects. Urinary and developmental effects are not areas of high concern.

29.

By what route will the nurse administer methylnaltrexone (Relistor)?

Subcutaneously

Intranasally

Orally

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

433

B Feedback: Relistor is only given by subcutaneous injection once each day.

30.

According to the Gate Control Theory, what interventions by the nurse could help to block pain impulses?

Administration of opioid medications

Administration of narcotic agonist-antagonists

Back massage

Acupuncture

Ans:

C Feedback: According to the gate control theory, the transmission of these impulses can be modulated or adjusted all along these tracts. All along the spinal cord, interneurons can act as gates by blocking the ascending transmission of pain impulses. It is thought that the gates can be closed by stimulation of the larger A fibers and by descending impulses coming down the spinal cord from higher levels in such areas as the cerebral cortex, the limbic system, and the reticular activating system. Administration of medications does not use the Gate Control Theory. Acupuncture uses the Gate Control Theory but is not performed by the nurse.

31.

The patient in labor receives morphine every 2 hours to manage labor pain. After 22 hours of labor the woman delivers a baby boy. What is the nurse’s priority action related to the newborn?

Monitor for opioid effects.

Administer naloxone.

Monitor for withdrawal syndrome.

Assess for congenital anomaly.

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

434

Morphine, meperidine, and oxymorphone are often used for analgesia during labor. The mother should be monitored closely for adverse reactions, and, if the drug is used during a prolonged labor, the newborn infant should be monitored for opioid effects. Naloxone would only be given if the newborn displays opioid effects. Withdrawal syndrome would not be seen with less than 24 hours of use. Every newborn is assessed for congenital anomalies but this would not be related to administration of morphine to the mother and so would not be the highest priority. 32.

What medication would the nurse administer to the patient in severe pain?

Codeine

Hydrocodone

Hydromorphone

Opium

Ans:

C Feedback: Hydromorphone is indicated for moderate-to-severe pain. Codeine is indicated for mild-to-moderate pain, hydrocodone is indicated for moderate pain, and opium is indicated for treatment of diarrhea and relief of moderate pain.

33.

The patient is brought to the emergency department in respiratory arrest after overdosing on heroin. The person accompanying the patient says he has been using heroin for years. After being administered one dose of a narcotic antagonist, the patient begins to breathe spontaneously but remains nonresponsive to stimuli so another dose of narcotic antagonist is ordered. What symptoms would indicate the patient is experiencing acute narcotic abstinence syndrome? (Select all that apply.)

Tachycardia

Hypertension

Vomiting

Confusion

Sedation

Ans:

A, B, C Feedback: The most common adverse effect is an acute narcotic abstinence syndrome that is characterized by

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

435

nausea, vomiting, sweating, tachycardia, hypertension, tremulousness, and feelings of anxiety. Confusion and sedation are not associated with acute narcotic abstinence syndrome. 34.

What order for naloxone would be appropriate for the nurse to administer for reversal of opioid effects?

1 mg IV repeat every 2 to 3 minutes

5 mg IV repeat every 5 minutes

0.1 mg IV repeat every 2 to 3 minutes

0.4 mg IV repeat every 3 minutes

Ans:

C Feedback: 0.1 to 0.2 mg is given IV and then repeated every 2 to 3 minutes for reversal of opioid effects. If the patient has overdosed on opioids the dose would be 0.4 to 2 mg every 2 to 3 minutes. The other options are incorrect.

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436

Chapter 27 - General and Local Anesthetic Agents

To decrease sympathetic stimulation in balanced anesthesia type of what agent would be used?

Antihistamines

Antiemetics

Narcotics

Sedative-hypnotics

Ans:

D Feedback: Sedative-hypnotics relax the patient, facilitate amnesia, and decrease sympathetic stimulation. Antihistamines decrease the chance of allergic reaction and help dry secretions. Antiemetics decrease the nausea and vomiting associated with gastrointestinal (GI) depression. Narcotics aid in the analgesic and sedative effects.

During what stage of anesthesia would the nurse see the patient’s skeletal muscles relax and return of regular respirations?

Stage 1: Analgesia stage

Stage 2: Excitement stage

Stage 3: Surgical anesthesia stage

Stage 4: Medullary paralysis

Ans:

C Feedback: Stage 3 is surgical anesthesia, which involves relaxation of skeletal muscles and return of regular respirations. During this stage, eye reflexes and pupil dilation are progressively lost. Surgery can be safely performed in this stage. Stage 1 refers to the loss of pain sensation; stage 2 involves a period of excitement with sympathetic stimulation (e.g., tachycardia, increased respirations, blood pressure changes); and stage 4 involves deep central nervous system depression with loss of respiratory and vasomotor center stimuli. Death can occur rapidly at this stage if adequate support is not supplied.

The nurse is developing a plan of care for the patient undergoing general anesthesia. What is a priority

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of care for this patient? A)

Encourage clear fluids.

Increase oxygen.

Reassure the patient that about safety.

Maintain regular repositioning.

Ans:

D Feedback: The patient would need to be moved or turned periodically to prevent skin breakdown and the formation of decubitus ulcers if the surgery lasted longer than an hour. Muscle paralysis resulting from the medications used in general anesthesia would prevent the patient from shifting himself or herself to relieve increase pressure. A patient receiving a general anesthetic would be unconscious, require respiratory support, and be connected to a mechanical ventilator to maintain respirations. Increased oxygen would not be indicated unless oxygen levels were less than adequate, and the patient would not receive anything by mouth eliminating option A. Reassurance would not be necessary for the unconscious patient.

A plan of care formulated by an operating room (OR) nurse includes four nursing diagnoses. Which diagnoses will the nurse include that is directly related to safety?

Deficient knowledge regarding drug therapy

Disturbed sensory perception (kinesthetic, tactile) related to anesthesia

Risk for impaired skin integrity related to immobility

Risk for injury related to central nervous system (CNS) depressive effects of drugs

Ans:

D Feedback: The nursing diagnosis, which directly relates to safety, is high risk for injury. The other three options are only indirectly related to safety. While in the OR, the patient under general anesthetic is unable to express safety concerns and must rely completely on the surgeon and OR staff for protection.

What nursing interventions would help minimize the risk of a headache in a patient recovering from spinal anesthesia? Administer a triptan intramuscularly.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Administer morphine intravenously.

Maintain patient in recumbent position.

Place patient in Trendelenburg position.

Ans:

438

Feedback: Patients receiving spinal anesthesia should remain in a recumbent position for as long as 12 hours. Triptan would not be effective because it is indicated for treatment of migraine headaches. Morphine would treat the headache but would not prevent it. 6.

An extremely anxious patient is beginning to awaken in the postanesthesia care unit. He or she states that his or her arms and legs feel like tree trunks and that they are hard to move. He or she also complains that his or her head feels fuzzy and that the right words will not come to his or her. What is the priority nursing intervention for this patient?

Provide analgesic medication for the discomfort.

Stay with patient as much as possible and provide reassurance.

Provide fluids to increase his or her wakefulness.

Encourage the patient to turn from side to side periodically.

Ans:

B Feedback: Most patients are disoriented and confused when awaking from anesthesia. It would be most important for the nurse to be with the patient as much as possible and reassure the patient that everything is as expected. Providing pain medication is important and may be needed during recovery if the patient reports pain, but would not be useful in treating the reported symptoms. The nurse would not provide fluids to patients immediately after surgery until ensuring the swallow reflex has returned and bowel motility has resumed. The nurse will help the patient turn from side to side, but this is not the priority nursing action at this time. However, the most effective nursing action for anxious postoperative patients is for the nurse to stay with them as much as possible.

The patient appears awake but is unconscious and has no response to painful stimuli. What medication does the nurse suspect this patient has received? Thiopental (Pentothal)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Midazolam (Generic)

Ketamine (Ketalar)

Propofol (Diprivan)

Ans:

439

Feedback: Ketamine has been associated with a bizarre state of unconsciousness in which the patient appears to be awake but is unconscious and cannot feel pain. This drug, which causes sympathetic stimulation with increase in blood pressure and heart rate, may be helpful in situations when cardiac depression is dangerous. Thiopental is a barbiturate anesthetic. Midazolam and propofol are nonbarbiturate anesthetics. None of these medications have this type of effect. 8.

Which nonbarbiturate anesthetic when used with halothane (Fluothane) can cause severe cardiac depression?

Droperidol (Inapsine)

Etomidate (Amidate)

Ketamine (Ketalar)

Propofol (Diprivan)

Ans:

C Feedback: If ketamine and halothane are used in combination, severe cardiac depression with hypotension and bradycardia may occur. Use of droperidol, etomidate, and propofol with halothane should not be a concern.

The operating room nurse is developing the care plan for a 10-year-old child with asthma who is scheduled for a tonsillectomy and who will receive halothane as the anesthetic agent. Why is this an appropriate drug for this patient?

Halothane is metabolized in the liver.

Halothane dilates the bronchi.

Halothane is excreted unchanged in the urine.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Halothane causes an accumulation of secretions.

Ans:

440

Feedback: Halothane is of particular benefit to a child with asthma because it dilates bronchi. Halothane is inhaled drug so it is not metabolized in the liver or excreted in the urine. It does not cause an accumulation of secretions. 10.

The nurse should recognize what drug is classified as an amide local anesthetic?

Lidocaine (Xylocaine)

Benzocaine (Dermoplast)

Chloroprocaine (Nesacaine)

Tetracaine (Pontocaine)

Ans:

A Feedback: Lidocaine is an example of an amide anesthetic. Benzocaine, chloroprocaine, and tetracaine are ester anesthetics.

11.

A 21-year-old patient is positioned on the operating room table in preparation for knee surgery. After the anesthesiologist induces the patient, what is the next phase of anesthesia?

Induction

Maintenance

Recovery

Medullary paralysis

Ans:

D Feedback: Induction is the period from the beginning of anesthesia until stage 3, or surgical anesthesia, is reached. After induction comes the maintenance phase from stage 3 until the surgical procedure is complete. A

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

441

slower, more predictable anesthetic, such as a gas anesthetic, may be used to maintain the anesthesia after the patient is in stage 3. This is followed by the recovery period that begins with the discontinuation of anesthesia. Medullary paralysis is the depth of anesthesia known as stage 4. Option C is a distracter. 12.

The nurse is collecting a nursing history from a preoperative patient who is to receive local anesthesia. While taking the admission history, the patient says she is allergic to lidocaine. What is the nurse’s priority action?

Notify the anesthesiologist.

Cancel the surgery.

Notify the surgeon.

Tell the perioperative nurse.

Ans:

A Feedback: The priority action is to inform the anesthesiologist who will administer the anesthetic because local anesthesia often involves use of lidocaine. It is not within the nurse’s scope of practice to cancel surgery. Notifying the surgeon and the perioperative nurse is appropriate but is not the priority of care.

13.

The nurse is caring for a patient in stage 2 of general anesthesia. What is the care priority for this patient?

Rub the patient’s back.

Monitor vital signs.

Provide eye care.

Reposition the patient.

Ans:

B Feedback: Stage 2, the excitement stage, is a period of excitement and often combative behavior, with many signs of sympathetic stimulation (e.g., tachycardia, increased respirations, blood pressure changes). Monitoring vital signs can be lifesaving at this stage. Eye care is important in stages 3 and 4. Rubbing the patient’s back and repositioning the patient are not indicated in this stage of anesthesia.

14.

The patient received midazolam in combination with an inhaled anesthetic and a narcotic during

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442

surgery. The postanesthesia care unit (PACU) nurse anticipates this combination of drugs will have what impact on the patient’s stay in the unit? A)

Increased use of medications to offset adverse effects

Extended time needed in the unit

Decreased nursing support needed

Increased analgesics needed

Ans:

B Feedback: Midazolam is associated with increased toxicity and length of recovery when used in combination with inhaled anesthetics, other central nervous system depressants, narcotics, propofol, or thiopental. Because this patient received both narcotics and inhaled anesthetics, the nurse will anticipate this patient’s time in the PACU will be extended. The patient is likely to need fewer analgesics because it will take longer for the patient to wake from anesthesia, which will also mean fewer medications will be used. Until the patient is awake, he or she will need continuous nursing support.

15.

The nurse is caring for a patient in the emergency department with a 2-inch laceration to the left arm caused by broken glass. The nurse suspects the local anesthetic will be administered by what method?

Topical Administration

Infiltration

Field block

Nerve block

Ans:

B Feedback: Infiltration local anesthesia involves injecting the anesthetic directly into the tissues to be treated (e.g., sutured, drilled, cut). This injection brings the anesthetic into contact with the nerve endings in the area and prevents them from transmitting nerve impulses to the brain. Topical administration would not be absorbed deeply enough to prevent pain. Field block would be used in a larger area (e.g., the entire area required surgical repair). Nerve block would anesthetize a far larger area than is required for 2-inch laceration.

16.

A nurse is caring for a patient who received thiopental as an anesthetic agent during surgery. What adverse effects would the nurse attribute to the medication?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Tachycardia

Urinary retention

Tachypnea

Headache

Ans:

443

Feedback: Adverse effects of thiopental include emergence delirium, headache, restlessness, anxiety, cardiovascular depression, respiratory depression, apnea, salivation, hiccups, and rashes. Tachycardia, tachypnea, and urinary retention are not usually associated with this drug. 17.

The nurse is caring for a patient who will receive an epidural block. What procedure is this patient likely to be having?

Rhinoplasty

Inguinal hernia repair

Removal of a brain tumor

Closed reduction of the right humerus

Ans:

B Feedback: Nerve block is a method of administering local anesthesia by injecting the anesthetic at some point along the nerve or nerves that run to and from the region in which the loss of pain sensation or muscle paralysis is desired. Several types of nerve blocks are possible. Epidural anesthesia is an injection of the drug into the epidural space where the nerves emerge from the spinal cord. As a result, only an inguinal hernia repair would be an appropriate procedure for administering an epidural. Surgery performed about the spinal cord, such as surgery on the nose or brain, could not be anesthetized by injection of medication into the spinal cord. Closed reduction of the right humerus would not be performed using a local anesthetic.

18.

The operating room nurse is taking the patient into the operating room when the patient says his grandmother almost died from a high fever in surgery 15 years ago. The nurse shares this information with the surgical team, recognizing this information indicates the patient is at risk for what? An allergic reaction to anesthesia

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Malignant hyperthermia

Anxiety

Hypothermia

Ans:

444

Feedback: The nurse assesses for a personal or family history of malignant hyperthermia, which may be triggered by the use of general anesthetics. Identifying patients at risk is imperative because the mortality rate is very high. All of these drugs have the potential to trigger malignant hyperthermia and should be used with caution in any patient at high risk. The patient’s anxiety is to be expected, all patients are at risk for hypothermia because they are often uncovered in a cold room. Allergy to anesthesia must always be considered a possibility but there is no indication of a higher than normal risk in this patient. 19.

The circulating nurse in the day surgery center is caring for a patient who is to receive a local anesthetic. What potential complications will the nurse monitor for? (Select all that apply.)

Malignant hypothermia

Pain

Blurred vision

Peripheral vasodilation

Nausea

Ans:

C, D, E Feedback: Adverse effects of local anesthetics are associated with the route of administration and the amount of drug that is absorbed systemically. These effects are related to the blockade of nerve depolarization throughout the system. Effects that may occur include central nervous system effects such as headache (especially with epidural and spinal anesthesia), restlessness, anxiety, dizziness, tremors, blurred vision, and backache; gastrointestinal (GI) effects such as nausea and vomiting; cardiovascular effects such as peripheral vasodilation, myocardial depression, arrhythmias, and blood pressure changes, all of which may lead to fatal cardiac arrest; and respiratory arrest. There is no such problem as malignant hypothermia (the condition is malignant hyperthermia) and pain may be caused by the procedure but not the anesthetic.

20.

What nursing diagnosis would a circulating nurse use on his or her intraoperative patients who receive general anesthesia? (Select all that apply.)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Disturbed sensory perception

Risk for hypovolemia

Risk for latex allergy response

Disturbed body image

Anxiety

Ans:

A, C, E

445

Feedback: Nursing care of patients receiving general or local anesthetics should include safety precautions to prevent injury and skin breakdown, support and reassurance to deal with the loss of sensation and mobility, and patient teaching regarding what to expect to decrease stress and anxiety. Risk for hypovolemia and disturbed body image would be applicable to some surgical procedures but would not be related to general anesthesia. 21.

The patient receives lidocaine as a local anesthetic before insertion of a chest tube. After the procedure the patient tells the nurse, The area is still numb. How long will this last? What is the nurse’s best response?

15 minutes

1 hour

2 hours

4 hours

Ans:

C Feedback: The onset of intramuscular lidocaine is 5 to 10 minutes, peaks within 5 to 15 minutes, and the duration of action is 2 hours. Options A, B, and D are distracters.

22.

The pharmacology instructor is explaining balanced anesthesia to the students. What agents would the instructor say are involved in balanced anesthesia? (Select all that apply.) Neuromuscular junction blockers

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Narcotics

Anticholinergics

446

Salicylates

Nonsteriodal anti-inflammatory drugs (NSAIDs)

Ans:

A, B, C Feedback: Balanced anesthesia involves giving a variety of drugs with specific effects to achieve analgesia, relax muscles, and invoke unconsciousness and amnesia. Classification of drugs administered includes anticholinergics, rapid intravenous anesthetics, inhaled anesthetics, neuromuscular junction blockers, and narcotics. Balanced anesthesia does not include use of salicylates or nonsteroidal antiinflammatory drugs.

23.

The nurse is caring for a patient who received halothane as an anesthetic agent. The patient will require additional surgery. When can halothane be used again without risk of halothane’s recovery syndrome?

1 week

2 weeks

3 weeks

4 weeks

Ans:

C Feedback: Halothane’s recovery syndrome is characterized by fever, anorexia, nausea, vomiting, and eventual hepatitis, which can progress to fatal hepatic necrosis. Although this syndrome is rare, halothane is not used more frequently than every 3 weeks to reduce patient risk. Other options are incorrect.

24.

A 54-year-old patient with chronic obstructive pulmonary disease is admitted for emergency surgery. What anesthetic agent would be dangerous to use on this patient?

Enflurane

Desflurane

Sevoflurane

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Isoflurane

Ans:

447

Feedback: Desflurane is associated with a collection of respiratory reactions, including cough, increased secretions, and laryngospasm. The other options have far fewer respiratory adverse effects and would be safer for use in this patient. 25.

The nurse is admitting a 35-year-old patient to the preoperative unit in preparation for an elective inguinal hernia repair procedure to be performed under general anesthesia. What is the nurse’s initial priority nursing assessment?

Assess the patient’s anxiety.

Start an IV.

Show the family the waiting area.

Weigh the patient.

Ans:

D Feedback: Weighing the patient is an initial priority because his or her weight will be used to determine appropriate dosing of all medications and will establish a baseline used for evaluation of any potential adverse effects. Other options are all actions the nurse will need to perform, but none are of higher priority than weighing the patient.

26.

A very anxious patient asks the nurse what type of anesthesia they will have for a scheduled tooth extraction. The nurse would describe what type of local anesthetic in laymen’s terms?

Topical

Infiltration

Field block

Nerve block

Ans:

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448

Feedback: Field block local anesthesia involves injecting the anesthetic all around the area that will be affected by the procedure or surgery. This is more intense than infiltration anesthesia because the anesthetic agent comes in contact with all of the nerve endings surrounding the area. This type of block is often used for tooth extractions. Topical would not be appropriate because it would not absorb deeply enough to block pain impulses in the root of the tooth. Nerve block would not be possible for oral surgery. 27.

The nurse receives a patient into the postanaesthesia care unit who has had surgery using the anesthetic agent methohexital. The nurse anticipates the patient’s need for what in the postoperative period?

Assistance in maintaining respirations

Assistance in moving lower extremities

Positioning in Semi-Fowler’s position

Analgesia to control the patient’s pain

Ans:

D Feedback: Methohexital lacks analgesic properties so the patient may require postoperative analgesics to control pain. The patient who has surgery under methohexital does not generally require assistance in maintaining respirations or assistance in moving their lower extremities. They also do not generally require positioning in a semi-Fowler’s position.

28.

The emergency room nurse is teaching a class for newly hired graduate nurses on the different types of local anesthetic agents. How would the nurse differentiate lidocaine and procaine as a local anesthetic agent?

Lidocaine is an amide that is broken down slowly and this can lead to toxicity.

Lidocaine is an ester that cannot become toxic in the system because of rapid metabolism.

Procaine is an amide that is broken down immediately in the tissues.

Procaine is metabolized by the liver with risk of toxicity and is classified as an ester.

Ans:

A Feedback: The ester local anesthetics are broken down immediately in the plasma by enzymes known as plasma esterases. The amide local anesthetics are metabolized more slowly in the liver. Serum levels of these

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449

drugs can become elevated and lead to toxicity. Lidocaine is an amide and procaine is an ester. 29.

A nursing student in a pharmacology class asks the instructor why nitrous oxide is used for dental surgery. What is the instructor’s most accurate response?

Nitrous oxide stays in the body for a long time.

Nitrous oxide does not cause pressure in body compartments.

Nitrous oxide does not cause muscle relaxation.

Nitrous oxide does not need to be administered with oxygen.

Ans:

C Feedback: Nitrous oxide is a potent analgesic; it is used frequently for dental surgery because it does not cause muscle relaxation. It moves quickly in and out of the body so duration of action is short and recovery after dental work is quick. Nitrous oxide does need to be given in combination with oxygen to avoid hypoxia in the patient.

30.

The nurse is admitting a patient to the postanesthesia care unit (PACU) who received halothane and ketamine as anesthesia. What is the nurse’s priority assessment?

Blood pressure and pulse

Respirations and airway

Pain and respirations

Temperature and airway

Ans:

A Feedback: If halothane and ketamine are used in combination, severe cardiac depression with hypotension and bradycardia may occur. If these agents must be used together, the patient should be monitored closely. Pain, respirations, airway, and temperature are all assessments the nurse will collect on any patient in the PACU, but they are not priority assessments associated with combining ketamine and halothane.

31.

The nurse is assisting while the physician is suturing a wound in the urgent care clinic. The physician asks for lidocaine with epinephrine. The nurse identifies the primary reason for adding epinephrine to the lidocaine is what effect?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

It will sting more when it is injected into the tissue.

Risk of systemic absorption is increased.

Local effect is increased.

Bleeding at the wound site is increased.

Ans:

450

Feedback: There is less risk of systemic absorption and increased local effects if these drugs are combined with epinephrine. Epinephrine causes vasoconstriction, which reduces bleeding, slows absorption, and makes the duration of effect longer. It does sting more when injected, but that is not a reason to use it. 32.

The nurse is caring for a patient scheduled for surgery who is to receive a barbiturate as part of the planned balanced anesthesia. What drugs, if taken by the patient, could result in a clinically important drugdrug interaction with the barbiturate? (Select all that apply.)

Thyroid hormone

Ibuprofen

Oral contraceptive

Theophylline

Anticoagulant

Ans:

C, D, E Feedback: Caution must be used when these drugs are used with any other central nervous system suppressants. Barbiturates can cause decreased effectiveness of theophylline, oral anticoagulants, beta-blockers, corticosteroids, hormonal contraceptives, phenylbutazones, metronidazole, quinidine, and carbamazepine. Combinations of barbiturate anesthetics and narcotics may produce apnea more commonly than occurs with other analgesics. Thyroid hormone and ibuprofen have no known drug interactions with barbiturates.

33.

The nurse is caring for a patient experiencing malignant hyperthermia. What medication will be administered to treat this condition? Midazolam

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Dantrolene

Halothane

Thiopental

Ans:

451

Feedback: Dantrolene is the preferred treatment for malignant hyperthermia and should always be readily available whenever anesthetics are used that could trigger the syndrome. Midazolam and thiopental are barbiturates whereas halothane is a volatile gas that can trigger malignant hyperthermia. 34.

The nurse is caring for a patient who will undergo cardioversion in the patient’s room this morning. The patient will receive propofol as anesthetic during the procedure. What are the benefits of using propofol for this procedure? (Select all that apply.)

It has a very rapid clearance.

It produces less of a hangover effect.

It allows for quick recovery from anesthesia.

Its onset of action is 5 minutes.

It is painless to inject IV.

Ans:

A, B, C Feedback: Propofol often is used for short procedures because it has a very rapid clearance and produces much less of a hangover effect and allows for quick recovery. It is a very short-acting anesthetic with a rapid onset of action of 30 to 60 seconds. Propofol often causes local burning on injection.

35.

The nurse applies a topical anesthetic to reduce sensation at the site while starting an IV. What age group is at greatest risk for systemic absorption of the topical anesthetic?

Older adult

Infant

Toddler

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Adolescent

Ans:

B Feedback: When topically applying a local anesthetic, it is important to remember that there is greater risk of systemic absorption and toxicity with infants. Therefore, the other options are incorrect.

452

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453

Chapter 28 - Neuromuscular Junction Blocking Agents

According to the sliding filament theory, what is the initial action in a muscle contraction?

Troponin is freed and prevents actin and myosin from reacting with each other.

Calcium binds to troponin, which causes the release of actin and myosin binding sites.

Actin and myosin molecules react with each other sliding along the filament and making it shorter.

Muscle filament relaxes or slides back to the resting position.

Ans:

C Feedback: Actin and myosin molecules react with each other again and again, sliding along the filament and making it shorter. This is a contraction of the muscle fiber according to the sliding filament theory. As the calcium is removed from the cell during repolarization of the muscle membrane, the troponin is freed and once again prevents the actin and myosin from reacting with each other. The muscle filament then relaxes or slides back to the resting position. Muscle tone results from a dynamic balance between excitatory and inhibitory impulses to the muscle.

When causing depolarization of the muscle membranes, what neurotransmitter interacts with the nicotinic cholinergic receptors leading to the release of calcium ions?

Acetylcholine

Serotonin

D-gluconamidoethyl methacrylate (GAMA)

Epinephrine

Ans:

A Feedback: At the acetylcholine receptor site on the effector’s side of the synapse, the acetylcholine interacts with the nicotinic cholinergic receptors causing the depolarization. Serotonin, GAMA, and epinephrine are not part of muscle contraction and relaxation.

The nurse, working in the preoperative holding area, is caring for a 70-year-old patient who is scheduled to receive succinylcholine as part of general anesthesia. When collecting the nursing history,

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454

what condition would require the nurse to notify the anesthesiologist of the need for caution? A)

Bone fracture

Malnutrition

Fluid volume overload

Narrow-angle glaucoma

Pregnancy

Ans:

A, B, D Feedback: Succinylcholine should be used with caution in patients with fractures because the muscle contractions it causes might lead to additional trauma; in patients with narrow-angle glaucoma or penetrating eye injuries because intraocular pressure increases. Extreme caution is necessary in the presence of genetic or disease-related conditions causing low plasma cholinesterase levels (e.g., cirrhosis, metabolic disorders, carcinoma, burns, dehydration, malnutrition, hyperpyrexia, thyroid toxicosis, collagen diseases, exposure to neurotoxic insecticides).

The nurse is caring for a patient who received succinylcholine during surgery. The nurse would expect the patient to spend more time in the postanesthesia care unit due to prolonged paralysis and inability to breathe if the patient was from what ethnic group?

American Japanese

Alaskan Eskimos

Native Americans

Hawaiian natives

Ans:

B Feedback: Alaskan Eskimos belong to a genetic group that is predisposed to low plasma cholinesterase levels, making them susceptible to prolonged paralysis after succinylcholine use. The other ethnic groups do not have this genetic predisposition.

A patient scheduled for surgery is to have a nondepolarizing neuromuscular junction (NMJ) blocker as adjunctive anesthesia. The nurse will have cause for concern about prolonged paralysis if the patient has been taking what medication?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

An aminoglycoside

Aminophylline

A barbiturate anesthetic

A cephalosporin

Ans:

455

Feedback: Combining nondepolarizing NMJ blockers with aminoglycosides can result in prolonged paralysis, and this combination should be avoided. This interaction does not occur with barbiturate anesthetics, cephalosporins, or aminophylline. 6.

A patient is having outpatient surgery that should last only 45 minutes. The patient is planning to go home immediately after the surgery is complete. What nondepolarizing neuromuscular junction blocker will most likely be used as an adjunct therapy to general anesthesia for this patient?

Atracurium (Tracrium)

Cisatracurium (Nimbex)

Pancuronium (Pavulon)

Rocuronium (Zemuron)

Ans:

D Feedback: Rocuronium has a rapid onset of action and a short duration, making it a drug of choice for outpatient surgical procedures when the patient will be leaving to go home and will need to be awake, alert, and mobile. Atracurium, cisatracurium, and pancuronium are associated with longer paralysis and recovery.

A patient is taking aminophylline for their chronic obstructive pulmonary disease. The patient is about to undergo emergency surgery and will receive an neuromuscular junction (NMJ) blocker as part of the procedure. It is important for the nurse to take what action?

Make sure the patient receives the aminophylline on a regular schedule to maintain therapeutic levels.

Monitor the patient very closely for signs of early arousal and return of muscle function.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Carefully explain all that is going on because the patient will be unable to talk.

Switch the patient to theophyllines before the procedure begins.

Ans:

456

Feedback: Aminophylline can cause a decreased effectiveness of NMJ blockers, leading to reduced paralysis and early return of movement. If a patient has emergency surgery and has been taking aminophylline, the patient should be carefully monitored for early arousal and return of movement. The patient will not be awake during surgery using an NMJ blocker and will be intubated to ensure respirations. Aminophylline and other xanthine derivatives like the theophyllines will have the same effect. 8.

The nurse is caring for a patient who is being maintained on mechanical ventilation. Atracurium is administered to limit the resistance to mechanical ventilation. What is the nurse’s priority assessment?

Hypotension

Tachycardia

Bradycardia

Increased secretions

Ans:

C Feedback: Bradycardia is a common adverse effect associated with atracurium. The nurse should monitor the patient regularly to avoid serious adverse effects. Increased secretions and hypotension are common with tubocurarine. Option B is a distracter.

The nurse is preparing a patient for surgery who will receive a neuromuscular junction blocker during the procedure. It is important for the nurse to review the patient’s medication history for concurrent use of what?

Angiotensin-converting enzyme (ACE) inhibitors

Beta blockers

Calcium channel blockers

Montelukast

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

457

C Feedback: When calcium channel blockers are used concurrently with neuromuscular junction blockers, the patient is at increased risk of prolonged paralysis. The dose of the neuromuscular junction blocker should be lowered if this combination cannot be avoided and the patient should be monitored closely. There is no anticipated drugdrug interaction with ACE inhibitors, beta blockers, or montelukast.

10.

An elderly patient has received a neuromuscular junction blocker during surgery. What would be an appropriate nursing diagnosis for this patient?

Excess fluid volume

Risk for impaired skin integrity

Deficient fluid volume

Chronic confusion

Ans:

B Feedback: An elderly or frail patient will need extra nursing care to prevent skin breakdown during the period of paralysis because skin tends to be thinner and more susceptible to breakdown. Therefore, risk of impaired skin integrity would be an appropriate nursing diagnosis. Fluid excess or deficit should not be a concern and the patient may be acutely confused when awakening, but there is no reason to think he or she would remain chronically confused if he was not before surgery.

11.

What are the primary uses of neuromuscular junction blockers (NMJ) blockers? (Select all that apply.)

To facilitate endotracheal intubation

To sedate patient for general anesthesia

To prevent injury during electroconvulsive therapy

To provide greater ease in extubating patient

To facilitate mechanical ventilation

Ans:

A, C, E Feedback:

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458

NMJ blockers are primarily used as adjuncts to general anesthesia, to facilitate endotracheal intubation, to facilitate mechanical ventilation, and to prevent injury during electroconvulsive therapy. NMJ blockers do not sedate the patient who will be paralyzed after administration but will remain alert unless another medication is given. These medications would not be given before extubation because respiratory muscles would be paralyzed, resulting in the inability to breathe. 12.

The pharmacology instructor is discussing nondepolarizing neuromuscular junction blockers (NMJ) blockers with the nursing class. How would the instructor explain the action of nondepolarizing NMJ blockers?

Blocks acetylcholine (ACh) from acting

Acts like ACh then prevents repolarization

Takes the place of ACh in the depolarizing/repolarizing process

Stops depolarization in the axion

Ans:

B Feedback: Depolarizing NMJ blockers cause muscle paralysis by acting like ACh. They excite (depolarize) the muscle and prevent repolarization and further stimulation. Options A, C, and D are incorrect.

13.

A patient is to have surgery and it is planned that atracurium (Tracrium) is to be used as an adjunct to general anesthesia. How will the atracurium work?

Act as agonist to acetylcholine

Stops depolarization in the axion

Act as antagonist to acetylcholine

Stops repolarization in the axion

Ans:

C Feedback: Nondepolarizing neuromuscular junction blockers compete with acetylcholine (ACh) for the ACh receptor site and after they occupy the site, stimulation cannot occur. This results in paralysis because the muscle cannot respond. Other options are incorrect.

14.

The nurse is caring for a patient who is receiving pancuronium (Pavulon) to facilitate mechanical

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459

ventilation. The patient is also receiving a barbiturate. How will the nurse administer these two medications? A)

They can be mixed and given in the same syringe.

Administer IM quickly after mixing the two drugs.

Shake vigorously when mixed in one syringe.

If given together, a precipitate may form.

Ans:

D Feedback: Do not mix this drug with any alkaline solutions such as barbiturates because a precipitate may form, making it inappropriate for use. Pancuronium is only given IV. Shaking does not prevent precipitation.

15.

The nurse is caring for a patient who is scheduled for abdominal surgery in the morning and is scheduled to receive rocuronium (Zemuron). The patient asks the nurse to describe the adverse effects of rocuronium. What would the nurse describe for the patient?

This drug is associated with pulmonary hypertension.

This drug contains benzyl alcohol.

This drug is associated with bradycardia.

This drug is associated with an increased heart rate.

Ans:

A Feedback: Rocuronium may be associated with pulmonary hypertension. Cisatracurium (Nimbex) contains benzyl alcohol; Atracurium (Tracrium) is associated with bradycardia; and Pancuronium (Pavulon) is associated with an increased heart rate.

16.

The postanesthesia care unit (PACU) nurse is caring for a patient that had succinylcholine (Anectine) as an adjunct to anesthesia. What is the nurse’s priority assessment while caring for this patient?

Movement

Temperature

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Mental status

Heart rate

Ans:

460

Feedback: Succinylcholine is more likely to cause malignant hyperthermia than other drugs so it is very important that the nurse carefully monitor the patient’s temperature while in the PACU. Movement, mental status, and heart rate monitoring are all routine components of PACU care, but after receiving this medication, temperature monitoring becomes the priority. 17.

The nurse is caring for a patient scheduled for abdominal surgery in the morning. The patient confides that he or she watched a movie last week about someone who had surgery and the anesthetic did not work, but no one knew because that patient could not move. What nursing diagnosis will the nurse include in this patient’s plan of care?

Alteration in fluid volume

Deficient knowledge regarding drug therapy

Fear related to paralysis

Risk for skin impairment

Ans:

C Feedback: Nursing diagnoses related to drug therapy may include Fear related to paralysis. This care plan would not include alteration in fluid volume; deficient knowledge regarding drug therapy; or risk for skin impairment.

18.

The nurse is caring for a patient in the intensive care unit who has been receiving neuromuscular junction (NMJ) blockers, sedatives, and analgesics for the past 2 weeks. The NMJ blocker therapy has been discontinued and the other medications are being reduced gradually. The patient is now alert and awake, communicating with his or her family by using paper and pencil. The family asks why the patient cannot sustain normal respirations. What is the nurse’s best response? (Select all that apply.)

His or her muscles need to get their strength back again.

This is a common occurrence in situations like this.

He or she is likely to breathe better each day.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The drugs created temporary muscle damage.

He or she will not be taken off the mechanical ventilator until he is ready.

Ans:

A, B, C, E

461

Feedback: After 2 weeks of muscle paralysis, the muscles are weak and will take time to strengthen as the patient begins using them again. Profound and prolonged muscle paralysis is always possible; patients must be supported until they are able to resume voluntary and involuntary muscle movement. When the respiratory muscles are paralyzed, depressed respiration, bronchospasm, and apnea are anticipated adverse effects so the patient will remain ventilated until he or she can demonstrate adequate respiratory effort. The drugs did not damage the muscle, but lack of use has weakened them. 19.

The nurse is caring for a very anxious 33-year-old female patient scheduled for abdominal surgery today. The patient says the anesthesiologist said she would receive succinylcholine (Anectine) during surgery and asks the nurse how long it will take before the medicine starts to work. What is the nurse’s best response?

1 to 2 minutes

30 to 60 seconds

5 to 10 minutes

30 minutes

Ans:

B Feedback: Succinylcholine has an onset of action of 30 to 60 seconds. The other options are incorrect.

20.

The patient returns from surgery complaining about muscle pain after receiving succinylcholine during the procedure. After reviewing the postoperative orders, which of these ordered analgesics will the nurse administer to treat this pain?

Aspirin

Acetaminophen (Tylenol)

Ketorolac (Toradol)

Morphine

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

462

A Feedback: Succinylcholine is associated with muscle pain, related to the initial muscle contraction reaction. A nondepolarizing neuromuscular junction blocker may be given first to prevent some of these contractions and the associated discomfort. Aspirin also alleviates much of this pain after the procedure. Tylenol is not an antiinflammatory medication and would not be appropriate. Toradol and morphine provide stronger pain relief than what is indicated for this discomfort.

21.

A student asks the pharmacology instructor how succinylcholine differs from acetylcholine (ACh). What should the instructor respond?

Succinylcholine is not broken down instantly.

It results in a prolonged contraction of the muscle.

The muscle becomes hyper stimulated by succinylcholine.

Succinylcholine’s duration of action is about 2 hours.

Ans:

A Feedback: Unlike endogenous ACh, succinylcholine is not broken down instantly. Succinylcholine, a depolarizing NMJ blocker, attaches to the ACh-receptor site on the muscle cell, causing a prolonged depolarization of the muscle. This depolarization causes stimulation of the muscle and muscle contraction (seen as twitching) and then as flaccid paralysis, so the contraction of the muscle is not prolonged and the muscle is incapable of being stimulated. The duration of effects of succinylcholine is 4 to 6 minutes and not 2 hours.

22.

The certified registered nurse anesthetist documents the anesthesia plan as using a depolarizing neuromuscular junction (NMJ) blocker as adjunct to other anesthetics on the patient when they go to surgery. The nurse would understand from this note that the patient will receive what drug?

Rocuronium (Zemuron)

Pancuronium (Pavulon)

Succinylcholine (Anectine, Quelicin)

Cisatracurium (Nimbex)

Ans:

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463

Feedback: Currently the only agent classified as a depolarizing NMJ blocker is succinylcholine. rocuronium, pancuronium, and cisatracurium are all nondepolarizing NMJ blockers. 23.

The nurse administers pancuronium to the mechanically ventilated patient in the pediatric intensive care unit. What assessment finding would the nurse suspect is an adverse effect resulting from the drug?

Bradycardia

Bronchospasm

Should not be used in neonates

Associated with pulmonary hypertension

Ans:

B Feedback: Adverse effects of pancuronium include respiratory depression, apnea, bronchospasm, and cardiac arrhythmias. Rocuronium is associated with pulmonary hypertension, cisatracurium should not be used in neonates, and atracurium is associated with bradycardia.

24.

The nursing student asks the mental health nurse why pancuronium was administered to the patient before electroconvulsive therapy was performed. What is the mental health nurse’s best response?

To prevent aspiration of vomitus

To reduce the pain of the procedure

To put the patient to sleep

To reduce the intensity of muscle contractions

Ans:

D Feedback: Pancuronium is used, in this case, to induce skeletal muscle relaxation and to reduce the intensity of muscle contractions in electroconvulsive therapy. Pancuronium has no analgesic or amnesic effects. It would not reduce the risk of aspiration unless an endotracheal tube was placed with the cuff inflated and then it would not be the drug that was preventing aspiration.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

25.

464

When a nondepolarizing neuromuscular junction blocker is used as an adjunct to surgery, what classification of medications could reverse the neuromuscular blockage leading to early arousal and return of muscle function?

Xanthines

Barbiturates

Opiates

Antihypertensives

Ans:

A Feedback: Administering xanthines (e.g., theophylline, aminophylline) could result in reversal of the neuromuscular blockage. Patients receiving this combination of drugs should be monitored very closely during the procedure for the potential of early arousal and return of muscle function. Barbiturates, opiates, and antihypertensives do not reverse neuromuscular blockage.

26.

The nursing instructor asks the student nurse what causes the respiratory obstruction that can occur with many of the depolarizing neuromuscular junction (NMJ) blockers. What is the student’s most accurate response?

Acetylcholine (ACh)

Histamine release

Serotonin

Hyperkalemia

Ans:

B Feedback: The histamine release associated with many of the depolarizing NMJ blockers can cause respiratory obstruction with wheezing and bronchospasm. Hyperkalemia is an adverse effect of the depolarizing NMJ blockers, ACh is what is acted on by the NMJ blockers, and serotonin is a distracter for this question.

27.

The nurse is assisting the nurse practitioner who is preparing to intubate the patient. The nurse practitioner has ordered atracurium and midazolam (Versed), a short acting benzodiazepine used to sedate the patient. In what order will the nurse administer these medications?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

It does not matter; they can be given in any order.

Give the midazolam first and then atracurium a few moments later.

Give atracurium and then give midazolam a few moments later.

Benzodiazepines are contraindicated with atracurium.

Ans:

465

Feedback: Atracurium induces muscular paralysis resulting in the inability to breath due to paralysis of respiratory muscles but it has no impact on perception of consciousness. Receiving this drug before being sedated would be frightening and extremely anxiety provoking for the patient, so the sedative should be given first to reduce perception and consciousness before administering atracurium. There is no contraindication of benzodiazepines and the order they are given does matter. 28.

When a normal muscle functions, several actions take place. In what order do these actions occur? 1. Acetylcholine (ACh) is broken down by acetylcholinesterase. 2. ACh interacts with the nicotinic cholinergic receptors. 3. ACh is released by the motor nerve. 4. ACh crosses the synaptic cleft. 5. The muscle membrane is depolarized. 6. The muscle membrane is repolarized. Put these actions in the correct order.

1, 3, 5, 2, 4, 6

2, 4, 6, 5, 3, 1

6, 5, 4, 1, 2, 3

3, 4, 2, 5, 1, 6

Ans:

D Feedback: Normal muscle function involves the arrival of a nerve impulse at the motor nerve terminal, followed by the release of the neurotransmitter, ACh into the synaptic cleft. At the acetylcholine receptor site on the effector side of the synapse, ACh interacts with the nicotinic cholinergic receptors, causing

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

466

depolarization of the muscle membrane. ACh is then broken down by acetylcholinesterase (an enzyme), freeing the receptor for further stimulation. 29.

The patient has been mechanically ventilated for the past week and is receiving a neuromuscular junction (NMJ) blocker, an analgesic, and a sedative. The goal is to extubate the patient. What medication will the nurse stop administering first?

NMJ blocker

Sedative

Analgesic

All three medications will be stopped at the same time.

Ans:

A Feedback: NMJ blockers have no effect on pain perception or consciousness and should not be used without sedation so the NMJ blocker should be removed first. Because the patient has been receiving analgesics for a week, he or she will have to be weaned off them to overcome dependence. Sedatives can be removed more quickly after the NMJ blocker’s effects are gone.

30.

The student asks the physiology instructor where the motor neuron communicates with a skeletal muscle fiber. What would the instructor respond?

Synapse

Neuromuscular junction

Synaptic cleft

Afferent junction

Ans:

B Feedback: The neuromuscular junction (NMJ) simply is the point at which a motor neuron communicates with a skeletal muscle fiber. The synapse and synaptic cleft are part of the NMJ. The afferent junction is a distracter for this question.

31.

What drug will the nurse administer to reverse the actions of neuromuscular junction (NMJ) blocker?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Cholinesterase inhibitor

Xanthine

Halothane

Aminoglycoside

Ans:

467

Feedback: Ensure that a cholinesterase inhibitor is readily available to overcome excessive neuromuscular blockade caused by nondepolarizing NMJ blockers. Although xanthines reverse NMJ blocking effects, they would not be administered for that purpose because their effects are not predictable. Halothane and aminoglycosides enhance paralytic effects of NMJ blockers. 32.

How can the nurse assess the degree of neuromuscular blockage the patient is experiencing?

Peripheral nerve stimulator

Measure vital signs

Assess response to painful stimuli

Test reflexes

Ans:

A Feedback: Have a peripheral nerve stimulator on standby to assess the degree of neuromuscular blockade, if appropriate. Vital signs can indicate degree of sedation and assess pain sensation, but they are not an indicator of the degree of neuromuscular blockade. Response to painful stimuli would be more of an indication of effects of sedation and/or analgesic than degree of muscular blockade. Any neuromuscular junction blockage would reduce or eliminate reflexes so it would not be a means of assessing degree of blockage.

33.

Why will the nurse administer a small dose of nondepolarizing neuromuscular junction (NMJ) blocker before administering succinylcholine?

To reduce discomfort of depolarization of muscles

To reduce the risk of malignant hyperthermia

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

To reduce negative effects of dantrolene

To increase the duration of effect for succinylcholine

Ans:

468

Feedback: Succinylcholine is associated with muscle pain related to the initial muscle contraction reaction. A nondepolarizing NMJ blocker may be given first to prevent some of these contractions and the associated discomfort. Administering a small dose of nondepolarizing NMJ blocker will not reduce the risk of malignant hyperthermia or increase the duration of effects. Dantrolene is a drug given to treat malignant hyperthermia. 34.

The nurse administers a sedative followed by a neuromuscular junction (NMJ) blocker after which the neonatologist attempts to intubate the patient without success. While waiting for the anesthesiologist to come to the unit to establish an artificial airway, what is the nurse’s priority of care?

Reposition the patient frequently.

Monitor oxygen saturation.

Monitor respirations and pulse rate.

Use a bag-valve-mask to ventilate the patient.

Ans:

D Feedback: Following administration of an NMJ blocker, the patient will be unable to breathe independently so maintaining an airway and breathing for the patient using a bag-valve mask is the nurse’s number-one priority. The patient will not be repositioned until after the artificial airway is placed (endotracheal tube or tracheostomy). Monitoring oxygen saturation and pulse will be second in priority after providing breathing for the patient. The patient will have no independent respirations until the NMJ is metabolized.

35.

The nurse is caring for the intensive care unit patient who is mechanically ventilated and receiving a neuromuscular junction (NMJ) blocker, a sedative, and an analgesic. What are priorities of nursing care for this patient? (Select all that apply.)

Reposition patient frequently.

Ensure care of the patient’s eyes.

Monitor temperature.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Provide a means for patient communication.

Increase ventilator breaths per minute as needed.

Ans:

A, B, C

469

Feedback: Frequent repositioning is important because the patient is unable to move and protect skin integrity independently. The loss of blink reflex due to muscle paralysis from NMJ blockers can result in conjunctival damage so eye care is very important. Monitor patient temperature for prompt detection and treatment of malignant hyperthermia. The patient cannot communicate while receiving NMJ blocker. Ventilator changes are made by physician order in most facilities and are usually based on arterial blood gas results.

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470

Chapter 29 - Introduction to the Autonomic Nervous System

The central nervous system (CNS) cells, where the impulses for the sympathetic nervous system (SNS) originate, are located where?

Cranium and sacral area of the spinal cord

Hypothalamus and the medulla

Nerve membranes

Thoracic and lumbar sections of the spinal cord

Ans:

D Feedback: The SNS is also called the thoracolumbar system because the CNS cells, where the impulses for the SNS originate, are located in the thoracic and lumbar sections of the spinal cord. The parasympathetic nervous system (PNS) is called the craniosacral system because the CNS neurons, where the impulses for the PNS originate, are found in the cranium and the sacral area of the spinal cord. Alpha2-receptors are located on nerve membranes and the hypothalamus and medulla are located where the main nerve centers for the autonomic nervous system (ANS) are located.

The nurse assesses that the patient is having a sympathetic response when noting what manifestations?

Decrease in sweating, decrease in respirations, and pupil constriction

Decrease in heart rate and perfusion, and an increase in inflammatory reactions

Increase in blood pressure, bronchodilation, and decreased bowel sounds

Increased motility and secretions in the GI tract, and constriction of bronchi and pupils

Ans:

C Feedback: When stimulated, the sympathetic nervous system prepares the body to flee or to turn and fight (Figure 29.3). Cardiovascular activity increases, as do blood pressure, heart rate, and blood flow to the skeletal muscles. Respiratory efficiency also increases; bronchi dilate to allow more air to enter with each breath, and the respiratory rate increases. Pupils dilate to permit more light to enter the eye, to improve vision in darkened areas (which helps a person to see to fight or flee). Sweating increases to dissipate heat generated by the increased metabolic activity.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

471

An anatomy and physiology instructor scratches chalk across the blackboard causing a screeching sound. Several students get a feeling like their hair is standing on end. This response is part of the sympathetic stress reaction and is called what?

Diaphoresis

Diuresis

Piloerection

Vasoconstriction

Ans:

C Feedback: The goose flesh or hair standing on end reaction that occurs as part of the stress response is called piloerection. Diaphoresis refers to sweating. Diuresis is the loss of water through the kidneys. Vasoconstriction is a muscle contraction in the blood vessel leading to blood vessel narrowing.

The nurse administers a drug to the patient whose heart rate is bradycardic aimed at increasing heart rate and myocardial activity. What adrenergic receptor is this drug stimulating?

Alpha1

Alpha2

Beta1

Beta2

Ans:

C Feedback: Beta1-receptors are found in cardiac tissue where they can stimulate increased myocardial activity and increased heart rate. Alpha1-receptors are found in blood vessels, in the iris, and in the urinary bladder. Alpha2-receptors are located on nerve membranes and act as modulators of norepinephrine release. Beta1-receptors are found in smooth muscle in blood vessels, in the bronchi, in the periphery, and in uterine muscle.

The nurse administers a drug that stimulates the parasympathetic nervous system. What physiological response would indicate the drug is working?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Vasoconstriction

Increased gastrointestinal (GI) motility

Increased heart rate

Pupil dilation

Ans:

472

Feedback: When the parasympathetic nervous system is stimulated, the result is increased GI motility, decreased GI secretions, decreased heart rate, and pupillary constriction, which all result from stimulation of the sympathetic nervous system. 6.

When the nurse administers a drug that stimulates the nicotinic receptors, what manifestation would indicate the drug is working?

Increased gastrointestinal (GI) motility

Decrease in heart rate

Muscle contraction

Pupil constriction

Ans:

C Feedback: Nicotinic receptors are located in the central nervous system (CNS), the adrenal medulla, the autonomic ganglia, and the neuromuscular junction. Stimulation of nicotinic receptors causes muscle contractions, autonomic responses, and release of norepinephrine from the adrenal medulla. Increased GI motility, decreased heart rate, and pupil constriction are the result of stimulation of the muscarinic receptors.

A young woman who lives alone comes home at night to find a man in her apartment. What body responses would be expected for the young woman?

Increased blood pressure (BP), increased heart rate, and pupil dilation

Decrease sweating, decreased BP, and increased heart rate

Pupil constriction, increased respiratory rate, and decreased heart rate

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Increased sweating, decreased respiratory rate, and increased BP

Ans:

473

Feedback: When stimulated by a stressful or fearful situation, the sympathetic nervous system (SNS) prepares the body to flee or to turn and fight. Cardiovascular activity increases as do blood pressure, heart rate, and blood flow to skeletal muscles. Respiratory rate increases, pupils dilate, and sweating increases. Decrease in sweating, BP, heart rate, respiratory rate, and pupil constriction indicate stimulation of the parasympathetic nervous system, which would not be stimulated by fear. 8.

When there is stimulation of the sympathetic nervous system (SNS), blood is diverted away from the gastrointestinal (GI) tract. What might the nurse assess that would indicate this diversion of blood flow to the GI tract?

Increased blood glucose levels

Decreased bowel sounds

Increased blood pressure

Decreased immune reactions

Ans:

B Feedback: When blood is diverted away from the GI tract, bowel sounds decrease and digestion slows dramatically, sphincters are constricted, and bowel evacuation cannot occur. Increased blood glucose levels, elevated blood pressure, and decreased immune reaction are due to SNS stimulation but are not concerned with the GI tract.

A patient is being admitted to the floor following a motor vehicle accident. Because of the stressful nature of the event, the nurse anticipates the patient will continue to have a sympathetic stress reaction during the postoperative period. When monitoring the patient’s serum electrolytes, what will the nurse closely monitor?

Increased calcium

Decreased potassium

Increased chloride

Decreased sodium

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

474

B Feedback: Aldosterone, also released with adrenal stimulation, retains sodium and water and causes the excretion of potassium in the urine. As water is retained, sodium is also retained, therefore increasing serum levels. Chloride levels are unlikely to change significantly. Calcium is not involved.

10.

What does the body require in order to produce acetylcholine?

Tyramine

Tyrosine from the diet

Choline from the diet

Bilirubin from the liver

Ans:

C Feedback: Acetylcholine (ACh) is an ester of acetic acid and an organic alcohol called choline. Cholinergic nerves use choline, obtained in the diet, to produce ACh. Tyramine and tyrosine are associated with norepinephrine production. Bilirubin is not a neurotransmitter.

11.

Which of these is a neurotransmitter?

Calcium

Cholinesterase

Acetylcholine (ACh)

Monoamine oxidase

Ans:

C Feedback: The last step in the production of the neurotransmitter involves choline acetyltransferase, an enzyme that is also produced within cholinergic nerves. Just like norepinephrine, the ACh is produced in the nerve and travels to the end of the axons, where it is packaged into vesicles. Calcium is an electrolyte and not a neurotransmitter. Cholinesterase breaks down acetylcholine and is an enzyme, not a neurotransmitter. Monoamine oxidase is an enzyme that breaks down norepinephrine.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

12.

475

Neurons that use acetylcholine as its neurotransmitter are what type of neurons?

Cholinergic

Dopaminergic

GABA-ergic

Serotonergic

Ans:

A Feedback: Neurons that use ACh as their neurotransmitter are called cholinergic neurons. Other options are incorrect.

13.

The nursing student learns that the hypothalamus serves what purpose?

Causes the secretion of adrenocorticotropic hormone (ACTH)

Controls voluntary movement

Secretes norepinephrine

Helps maintain red blood cell production

Ans:

A Feedback: The hypothalamus causes the secretion of ACTH, leading to a release of the adrenal hormones including cortisol, which suppresses the immune and inflammatory reactions to preserve energy that otherwise, might be used by these activities. The hypothalamus does not have a role in controlling voluntary movement. The adrenal glands secrete norepinephrine. Red blood cells are produced in the bone marrow and are stimulated to produce the cells by epoetin secreted by the kidney.

14.

Central nervous system drugs bind to receptors embedded in the cell membranes of neurons. Cholinergic receptors have been classified as what?

Muscarinic

Hormones

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Enzymes

Proteins

Ans:

476

Feedback: Cholinergic receptors or acetylcholine receptors are found on organs and muscles. They have been classified as muscarinic receptors and nicotinic receptors. Cholinergic receptors are not classified as hormones, enzymes, or proteins. 15.

What helps to prevent overstimulation of effector sites on nerve membranes?

Alpha1-receptors

Alpha2-receptors

Beta1-receptors

Beta2-receptors

Ans:

C Feedback: Alpha2-receptors are located on nerve membranes and act as modulators of norepinephrine release. When norepinephrine is released from a nerve ending, it crosses the synaptic cleft to react with its specific receptor site. Some of it also flows back to react with the alpha-receptor on the nerve membrane. This causes a reflex decrease in norepinephrine release. In this way, the Alpha2-receptor helps to prevent overstimulation of effector sites.

16.

The sympathetic nervous system (SNS) is associated with a fight-or-flight reaction. What reaction is the parasympathetic nervous system is associated?

Recover and repair

Respond and return

Rest and digest

Calm and peace

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

477

Feedback: Although the SNS is associated with the stress reaction and expenditure of energy, the parasympathetic nervous system is associated with activities that help the body to store or conserve energy, a rest-anddigest response. 17.

The control systems of the body act in many ways to maintain homeostasis. These homeostatic control systems regulate the functions of the cell, integrate the functions of different organ systems, and do what else?

Control vital functions

Feed cells under stress

Act on invading organisms

Shut down the body at death

Ans:

A Feedback: In many areas, the parasympathetic nervous system works in opposition to the sympathetic nervous system. This allows the autonomic system to maintain a fine control over vital functions. This is a homeostatic control system. Homeostatic control systems do not feed cells when they are under stress, they do not act on invading organisms, and do they shut down the body at death.

18.

The nurse administers a medication that stimulates the parasympathetic nervous system (PNS). What manifestations would indicate the medication is working? (Select all that apply.)

Hyperactive bowel sounds

Increased saliva production

Elevated heart rate

Urinary incontinence

Constricted pupils

Ans:

A, B, E Feedback:

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478

PNS stimulation results in increased motility and secretions in the gastrointestinal (GI) tract to promote digestion and absorption of nutrients: decreased heart rate and contractility to conserve energy and provide rest for the heart; constriction of the bronchi, with increased secretions; relaxation of the GI and urinary bladder sphincters, allowing evacuation of waste products; pupillary constriction, which decreases the light entering the eye and decreases stimulation of the retina. While urinary sphincters relax, they do not lose control so incontinence would not be an expected manifestation. 19.

The nurse administers a parasympathetic stimulator that only stimulates nicotinic receptors. What effects would the nurse expect to assess? (Select all that apply.)

Muscle contraction

Slowing heart rate

Increased bladder contraction

Signs and symptoms of a stress reaction

Release of epinephrine from adrenal medulla

Ans:

A, D, E Feedback: Stimulation of nicotinic receptors causes muscle contractions, autonomic responses such as signs and symptoms of a stress reaction, and release of norepinephrine and epinephrine from the adrenal medulla. Stimulation of muscarinic receptors causes pupil constriction, increased gastrointestinal (GI) motility and secretions (including saliva), increased urinary bladder contraction, and a slowing of the heart rate.

20.

Neurotransmitters are small molecules that exert their actions through specific proteins, called receptors, embedded in the postsynaptic membrane. Where are neurotransmitters synthesized?

In the dendrite terminal

In the presynaptic junction

In the postsynaptic junction

In the axon terminal

Ans:

D Feedback: Norepinephrine is made by the nerve cells using tyrosine, obtained in the diet. Dihydroxyphenylalanine (dopa) is produced by a nerve, using tyrosine from the diet and other chemicals. With the help of the

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479

enzyme dopa decarboxylase, the dopa is converted to dopamine, which in turn is converted to norepinephrine in the axon terminals of adrenergic cells. The norepinephrine then is stored in granules or storage vesicles within the cell. 21.

The patient is undergoing chronic stress and has a prolonged sympathetic response. What type of drug could this patient receive to reduce the sympathetic response? (Select all that apply.)

A drug that reduces sympathetic response

A drug that increases sympathetic response

A drug that reduces parasympathetic response

A drug that increases parasympathetic response

A drug that reduces central nervous system (CNS) response

Ans:

A, D, E Feedback: Decreasing sympathetic response would reduce the stress response, whereas increasing parasympathetic response would have the same effect. Although not optional, a medication that slowed down the entire nervous system would also work. In many areas, the parasympathetic nervous system works in opposition to the sympathetic nervous system (SNS). This allows the autonomic system to maintain a fine control over internal homeostasis. For example, the SNS increases heart rate, whereas the parasympathetic nervous system decreases it. Thus, the autonomic nervous system can influence heart rate by increasing or decreasing sympathetic activity or by increasing or decreasing parasympathetic activity.

22.

Where are Alpha1-receptors found? (Select all that apply.)

Blood vessels

The iris

Nerve membranes

Urinary bladder

Stomach sphincters

Ans:

A, B, D Feedback:

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480

Alpha1-receptors are found in blood vessels, in the iris, and in the urinary bladder. Alpha2-receptors are located on nerve membranes. Option E is a distracter. 23.

The nurse administers a drug to treat hypertension that causes vasodilation of blood vessels. What is the drug stimulating?

Alpha1-receptors

Alpha2-receptors

Beta1-receptors

Beta2-receptors

Ans:

C Feedback: In blood vessels, beta2 stimulation leads to vasodilation. Stimulation of Alpha1-receptors causes vasoconstriction. Beta1 and Alpha2-receptors are not involved with blood vessels

24.

The nurse administers a drug that stimulates beta2 receptors. What type of health condition would this drug treat?

Heart disease

High lipid levels

Diabetes

Respiratory disease

Ans:

D Feedback: Beta2-receptors are found in the smooth muscle in blood vessels, in the bronchi, in the periphery, and in uterine muscle. Beta2-receptors also cause dilation in the bronchi. Beta1-receptor stimulation would improve some heart disease and are responsible for increased lipolysis. Because beta2-receptors increase release of glucagon and the breakdown of glycogen, increasing serum glucose levels, stimulation of these receptors would exacerbate diabetes.

25.

What is another name for the parasympathetic nervous system?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Craniosacral system

Cephalocaudal system

Preganglionic system

Thoracolumbar system

Ans:

481

Feedback: The parasympathetic system is sometimes called the craniosacral system because the central nervous system neurons that originate parasympathetic impulses are found in the cranium (one of the most important being the vagus or tenth cranial nerve) and in the sacral area of the spinal cord. The thoracolumbar system is the sympathetic nervous system. The other options are distractors. 26.

The nurse administers a medication that stimulates the muscarinic receptors. What types of manifestations will the nurse assess in this patient that indicate the drug is working?

Pupil dilation

Increased activity of bowel sounds

Increased heart rate

Muscle contractions

Ans:

B Feedback: Stimulation of muscarinic receptors increases gastrointestinal (GI) motility which would cause increased activity of bowel sounds. Other effects include pupil constriction, increased urinary bladder contraction, and a slowing of the heart rate. Stimulation of nicotinic receptors cause muscle contractions.

27.

When muscarinic receptors are stimulated, what happens physiologically in the body? (Select all that apply.)

Pupil constriction

Pupil dilation

Increased secretions

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Increased bladder contraction

Increased heart rate

Ans:

A, C, D

482

Feedback: Stimulation of muscarinic receptors causes pupil constriction, increased gastrointestinal (GI) motility and secretions (including saliva), increased urinary bladder contraction, and a slowing of the heart rate. Pupils are constricted, not dilated and heart rate slows, it does not increase. 28.

The nurse administers a drug that stimulates the nicotinic receptors. What assessment findings would indicate effectiveness of the drug? (Select all that apply.)

Muscle contractions

Release of norepinephrine from the adrenal medulla

Signs and symptoms of a stress reaction

Urinary incontinence

Hyperactive bowel sounds

Ans:

A, B, C Feedback: Stimulation of nicotinic receptors causes muscle contractions, autonomic responses such as signs and symptoms of a stress reaction, and release of norepinephrine and epinephrine from the adrenal medulla. Urinary incontinence would not be associated with stimulation of the nicotinic receptors and increased bowel activity would result from muscarinic receptors.

29.

The body makes norepinephrine by using what from the diet?

Tyrosine

Thiamine

Tryptophan

Trichonosis

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

483

A Feedback: Norepinephrine is made by adrenergic nerves using tyrosine from the diet. Therefore the other options are incorrect.

30.

The nurse administers a drug that causes vasoconstriction, contracted piloerection muscles, pupil dilation, closure of salivary sphincter, and male sexual emission. What receptor is this drug stimulating?

Alpha1-receptors

Alpha2-receptors

Beta1-receptors

Beta2-receptors

Ans:

A Feedback: Stimulation of Alpha1-receptors results in vasoconstriction of blood vessels, increased peripheral resistance with increased blood pressure, contracted piloerection muscles, pupil dilation, thickened salivary secretions, closure of the urinary bladder sphincter, and male sexual emission. None of the other receptors, when stimulated, would have this effect.

31.

The nurse accompanies the physician into the patient’s room and remains after the patient is told he has cancer and it is likely to be terminal. The patient’s respirations become rapid and deep, pupils dilate, and measurement of vital signs indicates the patient’s heart rate and blood pressure are elevated. What type of response is the nurse assessing?

Sympathetic nervous system (SNS) response

Parasympathetic nervous system (PNS) response

Muscarinic receptor stimulation response

Nicotinic receptor stimulation response

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

484

When stimulated, the SNS prepares the body to flee or to turn and fight. Cardiovascular activity increases, as do blood pressure, heart rate, and blood flow to the skeletal muscles. Respiratory efficiency also increases; bronchi dilate to allow more air to enter with each breath, and the respiratory rate increases. Pupils dilate to permit more light to enter the eye to improve vision in darkened areas. PNS would lower heart rate and blood pressure and would constrict pupils. Stimulation of muscarinic receptors cause pupil constriction, increased gastrointestinal (GI) motility and secretions (including saliva), increased urinary bladder contraction, and a slowing of the heart rate. Stimulation of nicotinic receptors causes muscle contractions, autonomic responses such as signs and symptoms of a stress reaction, and release of norepinephrine and epinephrine from the adrenal medulla. 32.

Muscarinic and nicotinic receptors are part of what system?

The limbic system

The reticular activating system

The sympathetic nervous system

The parasympathetic nervous system

Ans:

D Feedback: Cholinergic receptors or acetylcholine receptors of the parasympathetic nervous system are found on organs and muscles. They have been classified as muscarinic receptors and nicotinic receptors. Because these receptors are part of the parasympathetic nervous system, all other options are incorrect.

33.

After the effector cell has been stimulated by acetylcholine (ACh), what enzyme stops this stimulation and allows the effector membrane to repolarize?

Decarboxylase

Norepinephrine

Acetylcholinesterase

Catecholamine

Ans:

C Feedback: After the effector cell has been stimulated by ACh, stimulation of the receptor site must be terminated and destruction of any ACh must occur. The destruction of ACh is carried out by the enzyme acetylcholinesterase. This enzyme reacts with the ACh to form a chemically inactive compound. The breakdown of the released ACh is accomplished in 1/1,000 second, and the receptor is vacated,

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

485

allowing the effector membrane to repolarize and be ready for the next stimulation. Dopa decarboxylase is an enzyme that converts dopa to dopamine. Norepinephrine is a catecholamine as are dopamine, serotonin, and epinephrine. 34.

The nurse is teaching a class about the autonomic nervous system for critical care nurses. What statements, if made by the nurse during the class, are accurate? (Select all that apply.)

Adrenergic receptors respond to norepinephrine.

Adrenergic receptors are part of the sympathetic nervous system.

Cholinergic receptors are part of the parasympathetic nervous system.

Cholinergic receptors include alpha- and beta- receptors.

Cholinergic and adrenergic receptors are part of the autonomic nervous system.

Ans:

A, B, C, E Feedback: The sympathetic nervous system contains the adrenergic receptors that respond to norepinephrine and include alpha- and beta-receptors. The parasympathetic nervous system contains the cholinergic receptors including the muscarinic and nicotinic receptors that respond to acetylcholine. Together the sympathetic and parasympathetic systems, including cholinergic and adrenergic receptors, make up the autonomic nervous system. Option D is incorrect.

35.

What statement correctly explains the nerve impulse transmission?

The impulse travels from the central nervous system (CNS) to the preganglionic neuron to the ganglia to the postganglionic neuron to the neuroeffector cells.

The impulse travels from the preganglionic neuron to the CNS to the ganglia to the postganglionic neuron to the neuroeffector cells.

The impulse travels from the preganglionic neuron to the ganglia to the postganglionic neuron to the CNS to the neuroeffector cell.

The impulse travels from the CNS, to the neuroeffector cells, to the preganglionic neuron to the ganglia to the postganglionic neuron.

Ans:

A Feedback: The autonomic nervous system does not send impulses directly to the periphery. Instead, axons from

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486

CNS neurons end in ganglia, or groups of nerve bodies that are packed together, located outside of the CNS. These ganglia receive information from the preganglionic neuron that started in the CNS and relay that information along postganglionic neurons. The postganglionic neurons transmit impulses to the neuroeffector cellsmuscles, glands, and organs.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

487

Chapter 30 - Adrenergic Agonists

A patient is admitted to the emergency department in shock. Isoproterenol (Isuprel) is administered. What would the nurse expect the effect of the isoproterenol to be?

Increased blood pressure

Decreased blood pressure

Increased body temperature

Decreased heart rate

Ans:

A Feedback: Isoproterenol stimulates beta-adrenergic receptors. Blood pressure is increased and heart rate is increased. Body temperature should not be affected.

What action do sympathomimetic drugs have in the body?

Decreased heart rate

Decreased blood pressure

Increased respirations

Increased intraocular pressure

Ans:

C Feedback: Sympathomimetic drugs increase respirations. Heart rate and blood pressure are also increased and intraocular pressure is decreased.

An 80-year-old patient has been brought to the emergency department in shock. The patient is receiving dopamine (Intropin). What potentially serious adverse effect will the nurse monitor for? Blood dyscrasia

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Cardiac arrhythmia

Hepatic toxicity

Renal insufficiency

Ans:

488

Feedback: Dopamine therapy can result in cardiac arrhythmias, which can be life threatening. Older patients are more likely to experience the adverse effects associated with adrenergic agonists and should be started on lower doses and monitored closely for arrhythmias and blood pressure changes. Blood dyscrasias, hepatic toxicity, and renal insufficiency are not commonly associated with dopamine use. In fact, at lower doses, dopamine increases renal perfusion. 4.

A patient comes to the clinic complaining of seasonal rhinitis. What adrenergic agonist would be prescribed for treatment of seasonal rhinitis?

Dobutamine (Dobutrex)

Ephedrine (generic)

Dopamine (Intropin)

Norepinephrine (Levophed)

Ans:

B Feedback: Ephedrine has been used to treat seasonal rhinitis by stimulating the release of norepinephrine from nerve endings and directly acting on adrenergic receptor sites. Although ephedrine was formerly used for situations ranging from the treatment of shock to chronic management of asthma and allergic rhinitis, its use in many areas is declining because of the availability of less toxic drugs with more predictable onset and action. Dobutamine is used to treat congestive heart failure. Dopamine and norepinephrine are used to treat shock.

The patient is taking midodrine (ProAmatine). What is the most important nursing action to include in the plan of care for this patient?

Monitor urine output.

Monitor blood pressure.

Monitor heart rate.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Monitor respirations.

Ans:

489

Feedback: Midodrine is an oral drug used to treat orthostatic hypotension in patients who do not respond to traditional therapy. It activates alpha-adrenergic receptors, leading to peripheral vasoconstriction and an increase in vascular tone and blood pressure. This effect can cause serious supine hypertension. Patients should be monitored in the standing, sitting, and supine positions to determine whether this will be a problem. It is also important to monitor heart rate, respirations, and urine output in this patient. However, assessing for supine hypertension would pose the greatest threat to the patient and would take priority. 6.

The nurse is planning discharge teaching for a patient who is taking clonidine (Catapres). What would be most important for the nurse to include when teaching about adverse effects?

Pupil constriction

Strange dreams

Increased urine output

Increased appetite

Ans:

B Feedback: Central nervous system effects from clonidine therapy include feelings of anxiety, restlessness, depression, fatigue, strange dreams, and personality changes. However, bad dreams would be the most upsetting and stressful effect for the patient. Pupil dilation, decreased urine output, and anorexia are all adverse effects of clonidine.

What drug would the nurse expect to administer if beta-specific adrenergic agonist effects are desired to prevent bronchospasm during anesthesia?

Dobutamine (Dobutrex)

Ephedrine (generic)

Isoproterenol (Isuprel)

Phenylephrine (Neo-Synephrine)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

490

C Feedback: Isoproterenol is a beta-specific adrenergic agonist used to prevent bronchospasm during anesthesia. Phenylephrine is an alpha-specific adrenergic agonist. Both dobutamine and ephedrine are alpha- and beta-adrenergic agonists.

The nurse is preparing discharge teaching for four patients. Which patient should be advised by the nurse that over-the-counter cold and allergy preparations contain phenylephrine and should be avoided?

A 47-year-old woman with hypertension

A 52-year-old man with adult onset diabetes

A 17-year-old girl with symptoms of an upper respiratory infection

A 62-year-old man with gout

Ans:

A Feedback: Phenylephrine, a potent vasoconstrictor and alpha1-agonist with little or no effect on the heart or bronchi, is used in many combination cold and allergy products. Patients with hypertension should avoid these drugs because serious increases in blood pressure could occur. Use of this drug in patients with diabetes and gout are not contraindicated. An upper respiratory infection may be an indication for the drug.

The nurse is writing a plan of care for a patient receiving an alpha-specific adrenergic agonist. What should this plan of care include?

Monitoring the patient for diarrhea

Monitoring blood pressure and heart rate every 2 to 4 hours

Assessing skin turgor for dehydration

Assessing for fatigue and lethargy

Ans:

B Feedback: Sympathetic stimulation will cause hypertension and increased heart rate so it is important these be

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491

monitored. Sympathetic stimulation will also result in increased sweating, decreased gastrointestinal activity, and a sense of anxiety and heightened awareness. Diarrhea, dehydration, fatigue, and lethargy would not be expected. 10.

A nurse receives an order for clonidine (Catapres) for a 25-year-old pregnant woman. What is the nurse’s priority action?

Weigh the patient to obtain correct dose/kg/day.

Have a second nurse check the dose before administering the drug.

Consult with the physician about the order.

Make sure the patient is wearing a fetal monitor.

Ans:

C Feedback: The nurse would consult with the physician to ensure awareness of the pregnancy and desire to administer this drug. There are no adequate studies about use during pregnancy and lactation, so use should be reserved for situations in which the benefit to the mother outweighs any potential risk to the fetus or neonate. The nurse should question the prescriber regarding this order. It would not be necessary to implement the other options.

11.

The nursing students are studying sympathomimetic drugs. How do these drugs act on the body?

Stimulate beta receptors and block alpha-receptors

Stimulate alpha-receptors and block beta-receptors

Block adrenergic receptors

Stimulate both alpha and beta-receptors

Ans:

D Feedback: Drugs that are generally sympathomimetic are called alpha-agonists (stimulate alpha-receptors) and beta-agonists (stimulate beta-receptors). These agonists stimulate all of the adrenergic receptors; that is they affect both alpha and beta-receptors.

12.

How does ephedrine act on the body?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Stimulates the release of norepinephrine

Acts indirectly on beta-adrenergic receptor sites

Stimulates the release of dopamine

Acts indirectly on alpha-adrenergic receptor sites

Ans:

492

Feedback: Ephedrine stimulates the release of norepinephrine from nerve endings and acts directly on adrenergic receptor sites. Therefore, the other options are incorrect. 13.

In what age group are adrenergic agonists contraindicated?

Older adults

Adolescents

Children

No age group

Ans:

D Feedback: The use of adrenergic agonists varies from ophthalmic preparations for dilating pupils to systemic preparations used to support patients experiencing shock. They are used in patients of all ages. Therefore, the other options are incorrect responses.

14.

A patient in shock is receiving an infusion of dopamine when it is discovered that an extravasation has occurred. What drug should be on standby for this occurrence?

Phenylephrine

Propranolol

Phenylalanine

Phentolamine

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

493

D Feedback: Maintain phentolamine on standby in case extravasation occurs; infiltration of the site with 10 mL of saline containing 5 to 10 mg of phentolamine is usually effective in saving the area. Phenylephrine, propranolol, and phenylalanine are not indicated for use when extravasation occurs.

15.

The pharmacology instructor is discussing adrenergic agonists with the nursing class. Which drugs would the instructor tell the nursing students are generally indicated for the treatment of shock, bronchospasm, and some types of asthma?

Sympathomimetic drugs

Beta-blocking drugs

Parasympathetic stimulating drugs

Anticatecholamine drugs

Ans:

A Feedback: These drugs generally are indicated for the treatment of hypotensive states or shock, bronchospasm, and some types of asthma. Beta-blocking drugs, parasympathetic stimulating drugs, and anticatecholamine drugs are not the drugs of choice in these situations.

16.

When studying for a pharmacology exam, a student asks her peers which agents affect both alpha- and beta-receptor sites. What would be an appropriate response to this student? (Select all that apply.)

Dobutamine (Dobutrex)

Epinephrine (Adrenalin, Sus-Phrine)

Dopamine (Intropin)

Clonidine (Catapres)

Albuterol (Proventil)

Ans:

A, B, C Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

494

Agents that affect both alpha- and beta-receptor sites include dobutamine, dopamine, ephedrine, epinephrine, and norepinephrine. Clonidine is an alpha-specific adrenergic agonist; albuterol is a betaspecific adrenergic agonist. 17.

The nurse is admitting a mental health patient and collects the medication history. The patient says he takes Haldol, midodrine, hydrochlorothiazide, acetaminophen, and Cymbalta. The nurse will call the provider to discuss what dangerous drug combination?

Haldol and midodrine

Hydrochlorothiazide and midodrine

Cymbalta and midodrine

Acetaminophen and midodrine

Ans:

A Feedback: Midodrine can precipitate increased drug effects of digoxin, beta-blockers, and many antipsychotics. Such combinations should be avoided. The other drug combinations do not pose any immediate concerns.

18.

A 4-year-old is admitted to the emergency department in shock after a motor vehicle accident. The patient weighs 12.5 kg. What would be the minimum safe dose of adrenalin if the pediatric dose is 0.005 to 0.01 mg/kg IV?

0.0625 mg

0.075 mg

0.08 mg

0.085 mg

Ans:

A Feedback: To calculate the minimum dosage, multiply the child’s weight in kg by the lower dosage range; 12.5 × 0.005 = 0.0625 mg.

19.

When giving beta-specific adrenergic agonists, at what age is an adult dose given?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

10 years

11 years

12 years

13 years

Ans:

495

Feedback: Adult doses are given to children who are 12 years and older (see dosages in Table 30.3, page 497.) Therefore, the other options are incorrect. 20.

The home health nurse is caring for a 77-year-old male patient who has just been discharged from the hospital. The patient is receiving an infusion of dobutamine (Dobutrex) to treat congestive heart failure. What is the priority nursing assessment?

Capillary refill time and vital signs

Effectiveness of comfort measures

Dietary intake and hydration

Compliance with treatment plan

Ans:

A Feedback: Dobutamine, although it acts at both receptor sites, has a slight preference for beta1-receptor sites. It is used in the treatment of heart failure because it can increase myocardial contractility without much change in rate and does not increase the oxygen demand of the cardiac muscle, an advantage over all of the other sympathomimetic drugs. Assessing capillary refill time and vital signs will allow the nurse to assess perfusion as an indicator of the effectiveness of the infusing drug. Dietary intake, compliance with treatment plan, and effectiveness of comfort measures are all important assessments but the priority assessment is perfusion.

21.

What is the nurse’s rationale for administering clonidine to treat hypertension?

Clonidine stimulates alpha2-receptors.

Clonidine stimulates alpha1-receptors.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Clonidine stimulates beta2-receptors.

Clonidine stimulates beta1-receptors.

Ans:

496

Feedback: Clonidine specifically stimulates alpha2-receptors and is used to treat hypertension because its action blocks release of norepinephrine from nerve axons. Therefore, the other options are incorrect answers. 22.

Isoproterenol is reserved for use in emergency situations. What is the rationale for this?

Its onset of action

Its duration of action

Its adverse effects

Its peak plasma concentration

Ans:

C Feedback: Because of its many adverse effects, isoproterenol is reserved for use in emergency situations that do not respond to other, safer therapies. It is not reserved for emergency use because of its onset of action, its duration of action, or its peak plasma concentration.

23.

The nurse is preparing to give isoproterenol parenterally. Before starting to administer the drug, what does the nurse ensure is on hand in case a severe reaction occurs?

An alpha-adrenergic blocker

An alpha-adrenergic stimulant

A beta-adrenergic stimulant

A beta-adrenergic blocker

Ans:

D Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

497

Ensure that a beta-adrenergic blocker is readily available when giving parenteral isoproterenol in case severe reaction occurs. This makes other options incorrect. 24.

The nursing instructor is quizzing a student who is preparing to administer an alpha-specific adrenergic agonist to a patient. The instructor asks the student what the student will assess in this patient after administering the drug. What is the student’s best response?

Blood pressure

Respirations

Mental status

Vision

Ans:

A Feedback: Monitor blood pressure, pulse, rhythm, and cardiac output regularly, even with ophthalmic preparations, to adjust dosage or discontinue the drug if cardiovascular effects are severe. Respirations, mental status, or vision may also need to be monitored but they are not impacted significantly by the drug being given.

25.

When assessing a patient who has been prescribed midodrine, what would the nurse assess for?

Pancreatic disease

Renal failure

Open-angle glaucoma

Hypothyroidism

Ans:

B Feedback: Assess for contraindications or cautions: any known allergies to the drug to avoid hypersensitivity reactions; presence of any cardiovascular diseases, which could be exacerbated by the vascular effects of these drugs; thyrotoxicosis, or diabetes, which would lead to an increase in thyroid stimulation or glucose elevation; chronic renal failure, which could be exacerbated by drug use; renal or hepatic impairment, which could interfere with drug excretion or metabolism; and current status of pregnancy and lactation. Options A, C, and D are incorrect.

26.

The patient has been taking clonidine and is now being changed to another antihypertensive drug. How

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

498

will the nurse instruct the patient regarding discontinuing the clonidine? A)

Check your blood pressure and pulse every 2 to 4 hours.

Inform your family the drug is being changed.

Reduce clonidine gradually over 2 to 4 days.

Keep an over-the-counter analgesic available to treat headaches.

Ans:

C Feedback: Do not discontinue clonidine abruptly because sudden withdrawal can result in rebound hypertension, arrhythmias, flushing, and even hypertensive encephalopathy and death; taper drug over 2 to 4 days. It is not necessary to teach the patient to check blood pressure and pulse every 2 to 4 hours, discuss plans for changing medications with the family, or prepare the patient for severe headaches.

27.

The clinic nurse is teaching a patient about transdermal clonidine (Catapres). What information would be included in the nurse’s teaching plan? (Select all that apply.)

Change the patch in the morning.

Rotate the site where the patch is placed.

Monitor blood pressure daily.

Stop the drug immediately if adverse effects occur.

Keep the physician informed of any new diagnoses or medications.

Ans:

B, C, E Feedback: Transdermal patches should not be placed in the same site repeatedly so it is important to instruct the patient to rotate sites to improve absorption of drug. Blood pressure should be monitored daily and the patient should be provided with acceptable ranges versus when to notify the physician because severe hypertension can occur. Due to drugdrug interactions, contraindications, and cautions related to specific diagnosis (cardiovascular disease, vasomotor spasm, thyrotoxicosis, diabetes, renal or hepatic impaiment), it is important for the patient to inform the physician if another physician prescribes a medication or a new diagnosis for decisions to be made about whether to continue the drug or change the dosage. The patch is changed weekly and not every morning. The patient should be taught not to stop the drug abruptly because it could lead to tachycardia, hypertension, arrhythmias, flushing, and even death.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

28.

499

The nurse needs to be aware, before administering, that what drug has a duration of action of only 1 to 2 minutes?

Isoproterenol

Dopamine

Phenylephrine

Ephedrine

Ans:

A Feedback: Isoproterenol has a duration of action lasting 1 to 2 minutes with immediate onset of action. Dopamine acts as long as the drug is infusing with peak action 10 minutes after initiating the infusion. Phenylephrine’s duration of action is 15 to 20 minutes. Ephedrine’s duration of action will depend on how the drug is administered as it could be given intramuscularly, subcutaneously, IV, or orally, but no matter by what route it is administered, the duration of action is longer than 1 to 2 minutes.

29.

A 4-year-old girl is prescribed an albuterol (Proventil) inhaler for her asthma. What is the recommended safe dosage for this patient?

1.25 to 2.5 mg q.i.d

1.25 to 2.5 mg b.i.d

2 mg q.i.d

0.5 to 1 mg b.i.d

Ans:

B Feedback: The recommended dosage for albuterol when given via inhaler is 1.25 to 2.5 mg b.i.d. When taken orally, the dosage is 2 mg t.i.d. or q.i.d. The other options are incorrect because they are outside the acceptable dosage range.

30.

The nurse is caring for a male patient who is taking a monoamine oxidase inhibitor (MAOI). The patient complains of seasonal rhinitis and the intern for his service orders phenylephrine nasal spray. What is the nurse’s priority action? Verify patency of the nares.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Review the patient’s medication history.

Question the order with the prescriber.

Position the patient to give the drug as ordered.

Ans:

500

Feedback: Phenylephrine, combined with MAOIs, can cause severe hypertension, headache, and hyperpyrexia. This combination should be avoided. As a result, the priority action is to remind the intern the patient is taking an MAOI and obtain an order for a different drug. Until the new order is received, no other actions would be taken. 31.

The nurse receives an order to begin a dopamine (Intropin) infusion at 5 mcg/kg/min. The patient weighs 50 kg. Each milliliter of solution contains 3 mg of dopamine. How many mL/h will the nurse set the pump to deliver?

3 mL/h

5 mL/h

3,000 mL/h

83.3 mL/h

Ans:

B Feedback: To calculate this dosage, multiply the ordered mcg by the weight (5 ×50 kg) to yield mcg/min (250 mcg/min) and then multiply this times 60 to get mcg/h (250 ×60 = 15,000 mcg/h). Convert mcg/h to mg/h (15,000/1,000 = 15 mg/h). Set up ratio (3 mg/1 mL = 15 mg/X mL) and cross multiply (3X = 15 mg). Divide both sides by 3 to yield 5 mL/h to deliver 5 mg/kg/min.

32.

The nurse calculates the infusion rate for administering dopamine to a premature infant in the neonatal intensive care unit who is in cardiogenic shock secondary to a cardiac anomaly. What is the nurse’s next priority action?

Insert an intravenous catheter

Obtain permission from parents

Ask another nurse to perform independent calculation

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Show the nurse’s calculations to the physician

Ans:

501

Feedback: It is good practice to have a second person check the dosage calculation before administering the drug to avoid potential toxic effects. When having calculations double-checked, it is best to let the other person work out separate calculations rather than just looking at the nurse’s calculation first because this will be more likely to catch an error. The nurse would have another nurse perform calculations rather than the doctor. Only after calculations are correct would the drug be administered, usually through a central line or the nurse may establish a peripheral line. Permission from parents is not required above general permission needed to care for the neonate. 33.

The student nurse is administering an ophthalmic adrenergic agonist. What action would reflect the need for further education about how to administer a medication ophthalmically?

Rests the tip of the dropper against the lower eyelid

Grasps the lower eyelid and pulls it away to form a pocket

Applies gentle pressure to the inside corner of the eye for 3 to 5 minutes

Instructs the patient to close his or her eyes and look downward

Ans:

A Feedback: First, wash hands thoroughly. Do not touch the dropper to the eye or to any other surfaces. Have the patient tilt his or her head back or lie down and stare upward. Gently grasp the lower eyelid and pull the eyelid away from the eyeball. Instill the prescribed number of drops into the lower conjunctival sac and then release the lid slowly (Fig. 30.1). Have the patient close the eye and look downward. Apply gentle pressure to the inside corner of the eye for 3 to 5 minutes. Do not rub the eyeball and do not rinse the dropper. If more than one type of eyedrop is being used, wait 5 minutes before administering the next one.

34.

When transcribing new orders for sympathomimetic medications prescribed for a geriatric patient, the nurse expects the dosage will be what?

The average adult dosage

Slightly higher than adult dosages

The lowest possible effective dosage

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Approximately half the normal adult dosage

Ans:

502

Feedback: Older patients should be started on lower doses of the drugs and should be monitored very closely for potentially serious arrhythmias or blood pressure changes. Other options are incorrect. 35.

The nurse is serving a breakfast tray to the patient receiving an alpha- and beta-adrenergic agonist medication. The nurse notifies dietary of the error with the patient’s diet when finding what on the tray?

Eggs

Bacon

Coffee

Milk

Ans:

C Feedback: Patients being treated with any adrenergic agonists who are also taking ma huang, guarana, or caffeine are at increased risk for overstimulation, including increased blood pressure, stroke, and death. The nurse should counsel patients to avoid these ingredients. There would be no reason to prevent the patient from ingesting eggs, bacon, or milk.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

503

Chapter 31 - Adrenergic Antagonists

The nurse administers an adrenergic blocking agent in order to prevent release of what neurotransmitter?

Epinephrine

Norepinephrine

Serotonin

Gamma-aminobutyric acid (GABA)

Ans:

B Feedback: Adrenergic blocking agents prevent norepinephrine from being released from the adrenal medulla or from the nerve terminal from activating the receptor, which blocks sympathetic nervous system effects. Epinephrine, serotonin, and GABA are not associated with this process.

What medication, if ordered for an 8-year-old patient, should the nurse question? (Select all that apply.)

Amiodarone (Cordarone) 400 mg orally per 24 hours

Labetalol (Normodyne) 100 mg orally b.i.d.

Phentolamine (Regitine) 1 mg intramuscularly 1 to 2 hours before surgery

Prazosin (Minipress) 3 mg orally t.i.d.

Carvedilol (Coreg) 6.25 mg orally b.i.d.

Ans:

A, B, E Feedback: Amiodarone, labetalol, and carvedilol are not indicated for pediatric use and do not have established pediatric dosages. Phentolamine and prazosin have established pediatric dosages and would not need to be questioned.

A nurse is working with a patient who is taking an adrenergic blocking agent. While assessing the patient’s medication history, the nurse discovers that the patient takes several alternative therapies.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

504

What herb is the nurse concerned may interact with the adrenergic blocking agent and affect the patient’s blood glucose level? A)

Ginseng

Nightshade

Di huang

Saw Palmetto

Ans:

C Feedback: Di huang is an alternative therapy that can lower blood glucose when used in combination with adrenergic blocking agents. Ginseng increases antihypertensive effects; nightshade slows the heart rate; and saw palmetto increases the risk of urinary tract complications when used in combination with adrenergic blocking agents.

A priority nursing assessment for a patient who is to receive an alpha- or beta-adrenergic blocking agent would be what?

Monitoring respiratory rate

Checking blood glucose level

Measuring urine output

Assessing heart rate

Ans:

D Feedback: The most serious adverse effect would be severe bradycardia, so the nurse’s priority would be assessing the heart rate. If the patient were identified as having diabetes, then monitoring blood glucose levels would become important because these drugs can aggravate diabetes by blocking sympathetic response including masking the usual signs and symptoms of hypoglycemia and hyperglycemia. Respiratory rate could be impacted if the patient was identified as having a condition causing bronchospasm and diabetes because the combination could worsen both conditions. Measuring urine output should be part of the patient’s care, but it is not the priority assessment.

5. A)

Bisoprolol (Zebeta) would be the drug of choice for which patient with a diagnosis of hypertension? A 7-year-old patient

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

A 15-year-old patient

A 37-year-old patient

A 69-year-old patient

Ans:

505

Feedback: Bisoprolol is the drug of choice for older adults. It is not associated with as many adverse effects in the elderly and regular dosing profiles can be used. This drug does not have an established pediatric dosage. Although the 37-year-old patient is an adult, there are additional choices for this patient, with a more favorable adverse effect profile. 6.

What would be the teaching priority for a diabetic patient being treated with a nonselective betablocker?

To take his own pulse

To weigh himself once a week at the same time of day

To avoid smoke-filled rooms

To understand signs and symptoms of hypo- or hyperglycemic reaction

Ans:

D Feedback: Because the beta-blockers stop the signs and symptoms of a sympathetic stress reaction, the signs and symptoms associated with hypo- or hyperglycemia, the diabetic patient taking a beta-blocker will need to understand this and learn new indicators of these reactions. Taking his pulse, weekly weighing, and avoiding smoke-filled rooms are good health practices and should be done, but not specifically needed by a diabetic patient taking a beta-blocker.

The nurse is caring for a patient who is receiving an adrenergic blocking agent. While writing the care plan for this patient what nursing diagnoses would be most appropriate concerning comfort?

Acute pain related to cardiovascular and systemic effects

Decreased cardiac output related to cardiovascular effects

Ineffective airway clearance related to lack of bronchodilating effects

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Deficient knowledge regarding drug therapy

Ans:

506

Feedback: All four options would be appropriate nursing diagnoses for a patient receiving an adrenergic blocking agent. However, acute pain would be the only nursing diagnosis related to the patient’s comfort level. 8.

A nurse is providing discharge instructions to a patient who is taking atenolol (Tenormin) to treat hypertension. What would the nurse teach the patient regarding a possible drugdrug interaction?

Antibiotics

Oral contraceptives

Nonsteroidal anti-inflammatory drugs (NSAIDs)

Antifungal agents

Ans:

C Feedback: A decreased hypertensive effect can occur if a beta-selective adrenergic blocking agent is used in combination with NSAIDs. If this combination is used, the patient should be monitored closely and dosage adjustments made. Antibiotics, oral contraceptives, and antifungal agents are not known to have a drugdrug interaction.

A busy patient with many responsibilities is to have a medication ordered to treat her hypertension. To increase compliance with drug therapy, what drug would be a good choice for this patient?

Acebutolol (Sectral)

Atenolol (Tenormin)

Bisoprolol (Zebeta)

Metoprolol (Lopressor)

Ans:

D Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

507

Metoprolol would be the best choice because it has an extended release form that only needs to be taken once a day, which should increase patient compliance. Acebutolol, atenolol, and bisoprolol do not come in extended release forms. 10.

The nurse provides patient teaching for a patient who has a new order for nadolol (Corgard) to treat hypertension. What statement by the patient concerning nadolol (Corgard) would indicate that the teaching has been effective?

I should cover my head at all times while I am outdoors.

Since I am taking this drug, I no longer need to worry about diet and exercise.

I will not stop taking this drug abruptly and will talk to my doctor before discontinuing.

I may have a very dry mouth while taking this drug.

Ans:

C Feedback: A patient receiving an adrenergic blocker must be aware that abruptly stopping the medication may result in a serious reaction. When changing medications or discontinuing their use, these drugs need to be tapered off gradually. This drug is not associated with photophobia or the anticholinergic effect of dry mouth. If the teaching were effective, the patient would be aware that he would need to continue lifestyle modifications, including diet and exercise.

11.

The nurse frequently administers propranolol (Inderal) as treatment for what condition?

Hypotension

Angina

Prevent first myocardial infarction (MI)

Cluster headaches

Ans:

B Feedback: The beta-adrenergic blocking agents are used to treat cardiovascular problems (hypertension, angina, migraine headaches) and to prevent reinfarction after MI. The prototype drug, propranolol, was in fact the most prescribed drug in the country in the 1980s and is still considered a first-line drug. Propranolol does not prevent first MIs and it is not used for hypotension or cluster headaches.

12.

A patient with benign prostatic hypertrophy (BPH) has been prescribed prazosin (Minipress) and asks

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

508

the nurse what this is going to do for him. The nurse’s response will include what action to explain the purpose of taking this medication? A)

Decreasing vascular tone and vasodilation

Reducing the size of the prostate to reduce pressure on the urethra

Relaxing the bladder and prostate and improving urine flow

Lowering blood pressure

Ans:

C Feedback: Alpha1-selective adrenergic blocking agents block smooth muscle receptors in the prostate, prostatic capsule, prostatic urethra, and urinary bladder neck, which leads to a relaxation of the bladder and prostate and improved flow of urine in male patients. Although they also block the postsynaptic alpha1receptor sites, causing a decrease in vascular tone and vasodilation that leads to a fall in blood pressure without the reflex tachycardia that occurs when the presynaptic alpha2-receptor sites are blocked, this is not the purpose for administering the drug to a patient with BPH. They do not reduce the size of the prostate.

13.

The nurse is caring for a 55-year-old patient receiving metoprolol (Lopressor). What statement by the patient would lead the nurse to believe that he needs additional instruction?

If I have side effects from the medication, I will contact my physician before I stop taking it.

I can take over-the-counter (OTC) cold medication while on metoprolol.

I will take the medication on an empty stomach.

I will report a weight gain of 2 pounds or more in 1 week.

Ans:

B Feedback: OTC medications can interact to increase or decrease the effects of antiadrenergic drugs. Antacids decrease the effects of beta-adrenergic blocking drugs. Decreased antihypertensive effects result when taken with ibuprofen. Other options reflect correct statements and would not indicate that the patient would need further instruction.

14.

Nonselective adrenergic blocking agents have a variety of therapeutic uses. Which agent is used for the treatment of heart failure?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Carvedilol (Coreg)

Sotalol (Betapace)

Propranolol (Inderal)

Tamsulosin (Flomax)

Ans:

509

Feedback: available orally and is used to treat hypertension as well as congestive heart failure and left ventricular dysfunction after a myocardial infarction. Sotalol is a nonselective beta-adrenergic blocking agent used to treat potentially life-threatening ventricular arrhythmias and to maintain normal sinus rhythm in patients with atrial fibrillation or flutter. Propranolol is a nonselective beta-adrenergic blocking agent used for treatment of hypertension, angina, idiopathic hypertrophic subaortic stenosis (IHSS)induced palpitations, angina and syncope, some cardiac arrhythmias induced by catecholamines or digoxin, pheochromocytoma; prevention of reinfarction after myocardial infarction; prophylaxis for migraine headache (which may be caused by vasodilation and is relieved by vasoconstriction, although the exact action is not clearly understood); prevention of stage fright (which is a sympathetic stress reaction to a particular situation); and treatment of essential tremors. Tamsulosin is used to treat benign prostatic hyperplasia and is analpha1-selective adrenergic blocking agent. 15.

Before administering a nonselective adrenergic blocker, what should the nurse assess?

Pulse and blood pressure

Bowel sounds and appetite

Serum albumin level

Serum sodium and potassium levels

Ans:

A Feedback: Monitor vital signs and assess cardiovascular status including pulse, blood pressure, and cardiac output to evaluate for possible cardiac effects. Although assessment of bowel sounds, appetite, serum albumin level, or serum sodium and potassium levels may be important to patient care, they are not related to administration of a nonselective adrenergic blocking agent.

16.

A 75-year-old male patient was admitted to the unit with angina. He was started on nadolol (Corgard). The patient asks why he is taking this medication because he does not have high blood pressure. What is the nurse’s best response?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Some beta-blockers have been approved as antianginal agents.

This medication will prevent blood pressure problems later on.

This drug will prevent you from developing an arrhythmia.

This medication will reduce benign prostatic hypertrophy (BPH) as well as treat heart failure.

Ans:

510

Feedback: Decreased heart rate, contractility, and excitability, as well as a membrane-stabilizing effect, lead to a decrease in arrhythmias, a decreased cardiac workload, and decreased oxygen consumption. The juxtaglomerular cells are not stimulated to release renin, which further decreases the blood pressure. These effects are useful in treating hypertension and chronic angina and can help to prevent reinfarction after a myocardial infarction by decreasing cardiac workload and oxygen consumption. Corgard will not prevent blood pressure problems, arrhythmias, or glaucoma in the future. Corgard is not used to treat BPH. 17.

In what patient is propranolol (Inderal) contraindicated?

26-year-old man with viral myocarditis

45-year-old woman with heart failure who suffered a myocardial infarction

42-year-old man with hypertension

65-year-old woman with persistent migraines

Ans:

B Feedback: Beta-adrenergic blocking agents are contraindicated in patients with bradycardia, heart failure, and heart block. The drug would not be contraindicated in the other patients.

18.

What assessment finding indicates to the nurse that timolol (Timoptic) has been effective?

The patient’s blood pressure increases.

The patient’s intraocular pressure is reduced.

The patient’s pulse is reduced.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The patient’s angina is reduced.

Ans:

511

Feedback: Timolol and carteolol are available in an ophthalmic form of the drug for reduction of intraocular pressure in patients with open-angle glaucoma. A decrease in intraocular pressure would indicate it has been effective. Timolol can also be used to treat hypertension but an increase in blood pressure would indicate the drug was not effective. Reduced pulse rate and reduced angina would not be related to this drug, especially if it was given in ophthalmic form when very little of the drug is absorbed systemically. 19.

The student nurse is studying for a pharmacology exam and notices that many of the adrenergic blocking antagonists drugs studied in class have what suffix?

-aine

-lol

-azole

-triptan

Ans:

B Feedback: The suffix -lol is seen in many of the drug names for adrenergic blocking antagonists. The suffix -aine would indicate a topical anesthetic, whereas -azole indicates an antifungal, and the suffix -triptan relates to the triptans.

20.

A 23-year-old female patient presents at the clinic with a migraine headache. What beta-adrenergic blocking agent might the physician prescribe for the prophylactic prevention of future migraine headaches?

Propranolol (Inderal)

Nadolol (Corgard)

Timolol (Blocadren)

Sotalol (Betapace)

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

512

Feedback: Propranolol is indicated for the treatment of hypertension, angina pectoris, idiopathic hypertrophic subaortic stenosis, supraventricular tachycardia, tremor; prevention of reinfarction after myocardial infarction; adjunctive therapy in pheochromocytoma; prophylaxis of migraine headache; and management of situational anxiety. The other options do not treat or prevent migraine headaches. 21.

A 5-year-old African American patient has been admitted to the pediatric intensive care unit with pheochromocytoma. The physician has ordered phentolamine. The nurse knows that the other indication for phentolamine is what?

Migraine headaches

Extravasation of IV norepinephrine or dopamine

Life-threatening arrhythmias

Heart failure

Ans:

B Feedback: Phentolamine (Regitine) is used for the prevention of cell death and tissue sloughing after extravasation of intravenous norepinephrine or dopamine, and severe hypertension reactions caused by manipulation of the pheochromocytoma before and during surgery; diagnosis of pheochromocytoma. Phentolamine would not be indicated for treatment of migraine headaches, life-threatening arrhythmias, or heart failure.

22.

The nurse is caring for a well-known stage actor who has suddenly developed severe stage fright that is preventing him from working. What drug does the nurse suspect will be prescribed for this patient?

Carteolol (Cartrol)

Nebivolol (Bystolic)

Nadolol (Corgard)

Propranolol (Inderal)

Ans:

D Feedback: One of the indications for use of propranolol is prevention of stage fright, which is a sympathetic stress reaction to a particular situation. None of the other options are indicated for this use.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

23.

513

The nurse assesses the patient receiving phentolamine (Regitine) and suspects what finding is an adverse effect of the medication?

Hypertension

Wheezing

Tachycardia

Depressed respirations

Ans:

C Feedback: Patients receiving phentolamine often experience extensions of the therapeutic effects, including hypotension, orthostatic hypotension, angina, myocardial infarction, cerebrovascular accident, flushing, tachycardia, and arrhythmiaall of which are related to vasodilation and decreased blood pressure. Headache, weakness, and dizziness often occur in response to hypotension. Nausea, vomiting, and diarrhea may also occur. Hypertension, wheezing, and depressed respiration would not be associated with phentolamine.

24.

The home care nurse is caring for a patient newly prescribed a nonselective beta-blocking agent. What would the nurse include in the teaching plan related to this drug? (Select all that apply.)

Take with meals.

Change position slowly.

Avoid driving or operating hazardous machinery.

Warn of possible increase in libido.

Increase activity levels as much as possible.

Ans:

A, B, C Feedback: Patients should be taught to change position slowly, avoid driving or operating hazardous machinery, and to pace activities as a result of potential dizziness from orthostatic hypotension in order to avoid injury. Patients should take medicine with meals when possible. Drug is more likely to decrease libido than increase it. Activity levels should be paced and care should be taken not to overdo.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

25.

514

The nurse is discharging a 35-year-old patient with diabetes who has been prescribed an adrenergic blocking agent. What is the priority teaching point for the nurse to discuss with this patient?

Monitor blood glucose levels closely and report any instability

Document signs and symptoms of hyperglycemia and hypoglycemia

Reduce carbohydrate intake more than usual while taking the new drug

Increase insulin dosage to compensate for the drug’s effect in increasing blood sugar

Ans:

A Feedback: It is important for the patient to be instructed to monitor blood sugar levels more frequently because adrenergic blocking agents mask the normal hypo- and hyperglycemic manifestations that normally alert patients such as sweating, feeling tense, increased heart rate, and rapid breathing. There is no need to change the diet or the diabetic medications. There may be no signs and symptoms to record because they are blocked by the adrenergic blocker.

26.

The home care nurse is providing teaching for a 59-year-old patient taking a nonselective beta-blocker. The nurse teaches the patient the importance of notifying the prescribing physician when what occurs related to this medication?

If the patient’s pulse stays above 100 bpm for 3 or more days

If the patient has a sudden onset of a cough

If the patient falls

If the patient’s pulse falls below 60 bpm for 3 or more days

Ans:

B Feedback: Bronchospasm, cough, rhinitis, and bronchial obstruction are related to loss of bronchodilation of the respiratory tract and vasodilation of mucous membrane vessels so a sudden onset of a cough or difficulty breathing should be immediately reported to the health care provider. Other options may need to be reported but not in relation to the nonselective beta-blocking medication.

27.

A 31-year-old male patient has been prescribed propranolol to reduce and prevent angina. What will the nurse assess this patient for related to the medication? (Select all that apply.) Sleep disturbance

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Impotence

Bronchospasm

Gastric pain

Tachycardia

Ans:

B, C, D

515

Feedback: Adverse effects of propranolol that the nurse would assess for include allergic reaction, bradycardia, heart failure, cardiac arrhythmias, cerebrovascular accident, pulmonary edema, gastric pain, flatulence, impotence, decreased exercise tolerance, and bronchospasm. 28.

Which nonselective alpha-adrenergic blocking agent is still used?

Metoprolol

Propranolol

Timolol

Phentolamine

Ans:

D Feedback: Of the nonselective alpha-adrenergic blocking agents, only phentolamine is still used today. Metoprolol is a beta1-selective adrenergic blocking agent. Timolol and propranolol are nonselective betaadrenergic blocking agents.

29.

The labor and delivery nurse assists with the delivery of a newborn to a woman taking an adrenergic blocker for a congenital heart defect. What organ systems may be affected in the newborn by these drugs? (Select all that apply.)

Cardiovascular

Respiratory

Central nervous system (CNS)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Gastrointestinal (GI)

Genitourinary (GU)

Ans:

A, B, C

516

Feedback: Adrenergic blockers can affect labor, and babies born to mothers taking these drugs may exhibit adverse cardiovascular, respiratory, and CNS effects. Problems with the GI and GU systems have not been reported. 30.

Beta-adrenergic blocking drugs are used in children for disorders similar to those in adults. What adrenergic blocking agent is used during surgery for pheochromocytoma?

Propranolol

Prazosin

Phentolamine

Guanethidine

Ans:

C Feedback: Phentolamine is used during surgery for pheochromocytoma in children. Prazosin is used to treat hypertension in children. Propranolol and guanethidine are not indicated for use in children with a pheochromocytoma.

31.

What are the therapeutic and adverse effects associated with the adrenergic blocking agents related to?

Receptor-site specificity

Sympathetic nervous system manifestations

Norepinephrine release

Function of the nerve terminal

Ans:

A Feedback:

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517

The therapeutic and adverse effects associated with these drugs are related to their adrenergic-receptorsite specificity; that is, the ability to react with specific adrenergic receptor sites without activating them, thus preventing the typical manifestations of sympathetic nervous system (SNS) activation. By occupying the adrenergic receptor site, they prevent norepinephrine released from the nerve terminal or from the adrenal medulla from activating the receptor, thus blocking the SNS effects. 32.

The specificity of the adrenergic blocking agents allows the clinician to select a drug to do what?

Have the desired effect

Multiply undesired effects

Increase specificity with higher serum blood levels

Improving concentration in the body

Ans:

A Feedback: This specificity allows the clinician to select a drug that will have the desired therapeutic effects without the undesired effects that occur when the entire sympathetic nervous system is blocked. In general, however, the specificity of adrenergic blocking agents depends on the concentration of drug in the body. Most specificity is lost with higher serum drug levels.

33.

What agents are used primarily to treat cardiac-related conditions? (Select all that apply.)

Nonselective adrenergic blocking agents

Nonselective alpha-adrenergic blocking agents

Alpha1-selective adrenergic blocking agents

Nonselective beta-adrenergic blocking agents

Beta1-selective adrenergic blocking agents

Ans:

A, D, E Feedback: Drugs that block both alpha- and beta-adrenergic receptors are primarily used to treat cardiac-related conditions. Phentolamine, a nonselective alpha-adrenergic blocking agent, is used to treat extravasation of IV norepinephrine or dopamine and hypertension related to a pheochromocytoma. Alpha1-selective

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

518

adrenergic blocking agents are used for treatment of hypertension and benign prostatic hyperplasia. The beta-adrenergic blocking agents are used to treat cardiovascular problems (hypertension, angina, migraine headaches) and to prevent reinfarction after myocardial infarction. Beta1-selective adrenergic blocking agents are used for treating hypertension, angina, and some cardiac arrhythmias. 34.

The patient takes labetalol and is scheduled for surgery. The anesthesiologist plans to use halothane as one of the anesthetic agents. The nurse consults with the anesthesiologist to ensure awareness the patient’s medication history knowing that the combination of labetalol and halothane will have what effect?

Excessive hypotension

Hypoglycemia

Conduction system disturbances

Vomiting

Ans:

A Feedback: There is increased risk of excessive hypotension if any of these drugs is combined with volatile liquid general anesthetics such as enflurane, halothane, or isoflurane. The effectiveness of diabetic agents is increased, leading to hypoglycemia when such agents are used with these drugs. Carvedilol has been associated with potentially dangerous conduction system disturbances when combined with verapamil or diltiazem. Vomiting is not associated with this combination of drugs.

35.

The 64-year-old patient has smoked since age 15 and has been diagnosed with chronic obstructive pulmonary disease. What classification of adrenergic blocking antagonist would be safest for this patient to treat angina?

Nonselective adrenergic blocking agents

Nonselective alpha-adrenergic blocking agents

Alpha1-selective adrenergic blocking agents

Beta1-selective adrenergic blocking agents

Ans:

D Feedback: Beta1-selective adrenergic blocking agents have an advantage over the nonselective beta-blockers in some cases. Because they do not usually block beta2-receptor sites, they do not block the sympathetic

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

519

bronchodilation that is so important for patients with lung diseases or allergic rhinitis. Consequently, these drugs are preferred for patients who smoke or who have asthma, any other obstructive pulmonary disease, or seasonal or allergic rhinitis. Nonselective adrenergic blocking agents block both alpha- and beta-adrenergic receptors exacerbating respiratory conditions by the loss of norepinephrine’s effect of bronchodilation. Nonselective alpha-adrenergic blocking agents are not used to treat angina. Alpha1selective adrenergic blocking agents are not used to treat angina.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

520

Chapter 32 - Cholinergic Agonists

The patient has had cevimeline (Evoxac) prescribed. What would be an appropriate dosing schedule for the nurse to administer this drug?

Once a day

Twice a day

Three times a day

Every 4 hours

Ans:

C Feedback: Cevimeline should be given three times a day with meals. Once or twice a day dosing would cause a decrease in therapeutic effects of the drug and every 4 hours could lead to toxicity.

A student asks the pharmacology instructor to describe the function of a cholinergic agonist. What would the instructor reply?

Cholinergic agonists increase the activity of dopamine receptor sites throughout the brain and spinal cord.

Cholinergic agonists decrease the activity of gamma-aminobutyric acid (GABA) receptor sites throughout the body.

Cholinergic agonists increase the activity of acetylcholine receptor sites throughout the body.

Cholinergic agonists decrease the activity of norepinephrine receptor sites throughout the brain and spinal cord.

Ans:

C Feedback: Cholinergic agonists are drugs that increase the activity of acetylcholine receptor sites throughout the body. Dopamine, GABA, and norepinephrine are not associated with cholinergic agonist function.

A 10-year-old child with spina bifida is receiving bethanechol (Urecholine) for treatment of neurogenic bladder. What adverse effect will the nurse assess for?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Constipation

Loss of bowel and bladder control

Decrease salivation

Increased appetite

Ans:

521

Feedback: Loss of bowel and bladder control is an adverse effect of cholinergic agents that would cause stress in a child. Diarrhea and increased salivation are also adverse effects. Increased appetite is not associated with these drugs. Children are more likely to have gastrointestinal (GI) upset that could result in a decrease in appetite. 4.

A nurse is writing a plan of care for a patient who is taking bethanechol (Urecholine). What would be an appropriate outcome for this patient?

Pupillary dilation

Increased blood pressure

Improved bladder function

Decreased secretions

Ans:

C Feedback: Bethanechol is prescribed for nonobstructive urinary retention and neurogenic bladder. The appropriate outcome for this patient would be improved bladder function. This drug causes pupillary constriction and increased secretions. This drug would not increase blood pressure. However, it could cause hypotension in the older patient.

What drug is the nurse likely to administer to diagnose myasthenia gravis in a child?

Atropine (generic)

Bethanechol (Urecholine)

Edrophonium (Enlon, Reversol)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Neostigmine (Prostigmine)

Ans:

522

Feedback: Edrophonium is the drug of choice for diagnosing myasthenia gravis. Bethanechol is used to treat neurogenic bladder. Neostigmine is used for treatment of myasthenia gravis and could be used for diagnosis if edrophonium could not be used. Atropine is an anticholinergic drug and would not be used to test for myasthenia gravis. 6.

A patient is brought to the emergency department having a cholinergic reaction, which includes a severe drop in blood pressure. What drug will the nurse expect to administer?

Atropine (generic)

Edrophonium (Enlon, Reversol)

Propranolol (Inderal)

Succinylcholine (Anectine)

Ans:

A Feedback: The antidote for a cholinergic reaction is atropine. This drug will block the cholinergic sites. Edrophonium would cause an accumulation of acetylcholine and worsen the situation. Propranolol blocks beta-receptors in the sympathetic system. Succinylcholine is a neuromuscular junction drug and would not affect other sites.

Memantine hydrochloride (Namenda) has been prescribed for a 63-year-old patient who has a confirmed diagnosis of Alzheimer’s disease. What would be the target dose for this patient?

5 mg/d

10 mg b.i.d.

15 mg/d

20 mg b.i.d.

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

523

Feedback: The drug is started at 5 mg/d PO, increasing by 5 mg/d at weekly intervals. The target dose is 20 mg/d given as 10 mg b.i.d. 8.

An Alzheimer’s patient taking donepezil (Aricept) has a complete blood count that indicates he or she is anemic. What drug taken in combination with donepezil could be the cause of the anemia?

Cimetidine (Tagamet)

Ibuprofen (Advil)

Diltiazem (Cardizem)

Furosemide (Lasix)

Ans:

B Feedback: There could be an increased risk of gastrointestinal (GI) bleeding if donepezil is taken with a nonsteroidal anti-inflammatory drug (NSAID) because of the combination of increased GI secretions and the GI mucosal erosion associated with the use of NSAIDs. Cimetidine, diltiazem, and furosemide would not affect GI bleeding.

The Air Force nurse is treating a patient who was exposed to a particular nerve gas. What drug has been approved to treat this patient?

Neostigmine (Prostigmin)

Pyridostigmine (Mestinon)

Ambenonium (Mytelase)

Edrophonium (Enlon, Reversol)

Ans:

B Feedback: Pyridostigmine has been approved for use by military personnel who have been exposed to particular nerve gases. Neostigmine, ambenonium, and edrophonium are not approved for this use.

10.

The nurse administers a direct-acting cholinergic agonist to the patient. When assessing this patient for drug effects, the nurse would expect to see effects arising from stimulation of what receptors?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Nicotinic

Alpha

Beta

Muscarinic

Ans:

524

Feedback: The direct-acting cholinergic agonists are similar to acetylcholine (ACh) and react directly with receptor sites to cause the same reaction as if Ach had stimulated the receptor sites. These drugs usually stimulate muscarinic receptors within the parasympathetic system. They are used as systemic agents to increase bladder tone, urinary excretion, and gastrointestinal (GI) secretions. One drug is used as an ophthalmic agent to induce miosis to relieve the increased intraocular pressure of glaucoma. They have no effect on alpha and beta receptors in the sympathetic nervous system and little impact on nicotinic receptors. 11.

The nurse is caring for a 49-year-old patient, who has been receiving bethanechol (Duvoid) for 1 week. The patient develops progressive muscle weakness and respiratory difficulty. Edrophonium is ordered and injected and the patient’s symptoms worsen. How would the nurse interpret this response?

Myasthenic crisis

Cholinergic crisis

Anaphylactic reaction

Pulmonary edema

Ans:

B Feedback: The patient with a cholinergic crisis presents with progressive muscle weakness and respiratory difficulty because the accumulation of acetylcholine at the cholinergic receptor site leads to reduced impulse transmission and muscle weakness. This is a crisis when the respiratory muscles are involved. Myasthenic crisis and cholinergic crisis display similar clinical pictures. The drug edrophonium can be used as a diagnostic agent to distinguish the two conditions. If the patient improves immediately after the edrophonium injection, the problem is a myasthenic crisis, which is improved by administration of the cholinergic drug. If the patient gets worse, the problem is probably a cholinergic crisis, so withdrawal of the patient’s cholinergic drug along with intense medical support is indicated. The situation does not depict an anaphylactic reaction or pulmonary edema.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

12.

525

A 70-year-old female patient has just been diagnosed with Alzheimer’s disease. What cholinergic drug is used for the treatment of Alzheimer’s disease?

Bethanechol (Duvoid)

Neostigmine (Prostigmin)

Donepezil (Aricept)

Edrophonium (Enlon, Reversol)

Ans:

C Feedback: Currently, there are four reversible indirect-acting cholinergic agonists available to slow the progression of this disease. These include tacrine (Cognex), galantamine (Razadyne), rivastigmine (Exelon), and donepezil (Aricept). Edrophonium (Enlon, Reversol) is used to diagnose myasthenia gravis; neostigmine is used for the diagnosis and management of myasthenia gravis; and bethanechol is used to treat neurogenic bladder.

13.

The 38-year-old patient has just been administered edrophonium (Enlon, Reversol). The nurse will know whether this patient has myasthenia gravis if the patient exhibits what within 30 minutes after receiving the medication?

Increased muscle strength

Decreased adventitious breath sounds

Decreased muscle spasms

Increased urinary output

Ans:

A Feedback: Edrophonium is administered to diagnose myasthenia gravis because administration of this drug will cause a marked increase in muscle strength within 30 minutes of administration if the patient has this disease. Edrophonium does not produce decreased adventitious breath sounds, decreased muscle spasms, or increased urinary output.

14.

When the nurse administers a cholinergic agonist to the patient, the nurse’s expectation is that what system will be stimulated? Sympathetic nervous system

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Parasympathetic nervous system

Central nervous system

Voluntary nervous system

Ans:

526

Feedback: Cholinergic agonists act at the same site as the neurotransmitter acetylcholine (ACh) and increase the activity of the ACh receptor sites throughout the body. Because these sites are found extensively throughout the parasympathetic nervous system, their stimulation produces a response similar to what is seen when the parasympathetic system is activated. These drugs do not stimulate the sympathetic, central, or voluntary nervous systems. 15.

A 78-year-old patient is admitted to the emergency department and is diagnosed with bradycardia. The patient tells the nurse he or she is taking donepezil (Aricept), a cholinergic agent, for Alzheimer’s disease. The nurse will anticipate what drug will be ordered to treat the patient’s bradycardia?

Atropine

Pseudoephedrine

Propranolol

Bethanechol

Ans:

A Feedback: Maintain a cholinergic blocking drug on standby, such as atropine, to use as an antidote for excessive doses of cholinergic drugs to reverse overdose or counteract severe reactions arising from use of cholinergic agonists. Atropine will block cholinergic effects that are causing this patient’s heart rate to decline. Bethanechol will slow the heart rate further whereas propranolol and pseudoephedrine will not reverse the cholinergic stimulation.

16.

The nurse administers bethanechol (Duvoid, Urecholine) to treat what condition?

Hypertension

Urinary retention

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Bradycardia

Asthma

Ans:

527

Feedback: Bethanechol is used for the treatment of nonobstructive postoperative and postpartum urinary retention, neurogenic bladder atony in adults and children older than 8 years; diagnosis and treatment of reflux esophagitis in adults, and orally in infants and children for treatment of esophageal reflux. It would be ineffective in treating hypertension, bradycardia, and asthma. 17.

The nurse is caring for a patient who has indirect-acting cholinergic agonists prescribed to treat myasthenia gravis. When administering this classification of drug, the nurse should assess the patient for toxic effects of the drugs including what?

Paralytic ileus

Abdominal distension

Hypertension

Muscle weakness

Ans:

D Feedback: The patient with a cholinergic crisis presents with progressive muscle weakness and respiratory difficulty because the accumulation of acetylcholine at the cholinergic receptor site leads to reduced impulse transmission and muscle weakness. This is a crisis when the respiratory muscles are involved. Toxic effects of the drug would not include paralytic ileus, abdominal distention, or hypertension.

18.

Which indirect-acting anticholinesterase medication will the nurse administer as an antidote to neuromuscular junction blockers?

Pyridostigmine (Mestinon)

Donepezil (Aricept)

Rivastigmine (Exelon)

Ambenonium (Mytelase)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

528

A Feedback: Pyridostigmine is indicated for management of myasthenia gravis; antidote to neuromuscular junction blockers; increased survival after exposure to nerve gas. Donepezil and rivastigmine are used to treat Alzheimer’s disease. Ambenonium is used to treat myasthenia gravis.

19.

A patient is brought to the emergency department after a motor vehicle accident. The patient is diagnosed with multiple injuries including a bladder injury. The patient is taken to surgery and develops a nonobstructive postoperative urinary retention. What drug would the nurse expect to be ordered for this patient?

Neostigmine

Bethanechol

Ambenonium

Pyridostigmine

Ans:

B Feedback: The agent bethanechol, which has an affinity for the cholinergic receptors in the urinary bladder, is available for use orally and subcutaneously to treat nonobstructive postoperative and postpartum urinary retention and to treat neurogenic bladder atony. The other options are not indicated for this purpose.

20.

A patient is taking memantine for Alzheimer’s disease. This drug does not affect what?

Nicotinic receptor sites

Glucagon receptor sites

Gamma-aminobutyric acid (GABA) receptor sites

Muscarinic receptor sites

Ans:

C Feedback: The drug, memantine hydrochloride (Namenda) has a low-to-moderate affinity for N-methyl-D-

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

529

aspartate (NMDA) receptors with no effects on dopamine, GABA, histamine, glycine, or adrenergic receptor sites. It is believed that persistent activation of the central nervous system NMDA receptors contributes to the symptoms of Alzheimer’s disease. By blocking these sites, it is thought that the symptoms are reduced or delayed. Other options are incorrect. 21.

A patient is brought to the emergency department and is found to have cholinergic toxicity. What is the drug of choice to treat this condition?

Atropine

Epinephrine

Lidocaine

Edrophonium (injectable)

Ans:

A Feedback: Maintain atropine sulfate on standby as an antidote in case of overdose or severe cholinergic reaction. Epinephrine, lidocaine, and edrophonium would not be used for this purpose.

22.

A 47-year-old man is suspected of having been exposed to nerve gas. Atropine is given to temporarily block cholinergic activity and to activate acetylcholine sites in the central nervous system. What drug does the nurse give with the atropine to free up the acetylcholinesterase to start breaking down acetylcholine?

Pyridostigmine

Pralidoxime

Neostigmine

Rivastigmine

Ans:

B Feedback: If nerve gas exposure is expected, patients who may have been exposed are given intramuscular injections of atropine (to temporarily block cholinergic activity and to activate acetylcholine sites in the central nervous system) and pralidoxime (to free up the acetylcholinesterase to start breaking down acetylcholine). An auto-injection is provided to military personnel who may be at risk. The injector is used to give atropine and then pralidoxime. The injections are repeated in 15 minutes. If symptoms of nerve gas exposure exist after an additional 15 minutes, the injections are repeated. If symptoms still persist after a third set of injections, medical help should be sought. Pyridostigmine, neostigmine, and

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

530

rivastigmine are not used in nerve gas exposure. 23.

A 77-year-old man is brought to the emergency department with a cholinergic overdose. The nurse knows that older adults are likely to have a greater number of adverse drug effects for what reason?

They are more likely to take the medications inconsistently.

All older adults have some type of chronic health problem.

Older adults have a number of different physiological changes.

Older adults have a poor memory and are more likely to overdose.

Ans:

C Feedback: Older patients are more likely to experience the adverse effects associated with these drugs (e.g., central nervous system, cardiovascular, gastrointestinal, respiratory, and urinary) because of normal physiological changes associated with aging. Those patients with known renal or hepatic impairment would receive a lower dosage to avoid overdose. Older people are not more likely to take medications inconsistently or to take too much medication. Not all older adults have chronic health problems.

24.

The nurse is caring for a 45-year-old female patient who is in chronic renal failure. What cholinergic drug is contraindicated for this patient?

Neostigmine

Pyridostigmine

Edrophonium

Galantamine

Ans:

D Feedback: Drugs used to treat Alzheimer’s disease are metabolized in the liver and excreted in the urine, so caution should be used in the presence of hepatic or renal dysfunction, which could interfere with the metabolism and excretion of the drugs. Dosage adjustments may be needed for neostigmine, edrophonium, and pyridostigmine if the patient has renal disease but they are not contraindicated.

25.

A 72-year-old man is newly diagnosed with Alzheimer’s disease. The patient’s daughter asks the nurse how her father’s medication is going to help him. What will the nurse explain in layman’s terms?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

531

The drugs work by increasing acetylcholine (ACh) levels in the brain and slowing the progression of the disease.

The drugs work by crossing the bloodbrain barrier and cure the disease in the brain.

The drugs work by increasing ACh levels in the brain and reverse the progression of the disease.

The drugs work by crossing the bloodbrain barrier and decreasing ACh levels in the neuromuscular junctions.

Ans:

A Feedback: Acetylcholinesterase inhibitors that cross the bloodbrain barrier are used to manage Alzheimer’s disease by increasing ACh levels in the brain and slowing the progression of the disease. Decreasing ACh levels in the brain does not slow the progression, reverse the progression, or cure the disease. Decreasing ACh levels at the neuromuscular junctions has no effect on Alzheimer’s disease.

26.

A patient has been newly diagnosed with myasthenia gravis. What important teaching will the nurse provide the family?

If one dose of medication is missed double the next dose

The warning signs of drug overdose

How to encourage activity when the patient is tired

Importance of monitoring level of consciousness

Ans:

B Feedback: The patient who is being treated for myasthenia gravis and his or her significant other should both receive instruction in drug administration, warning signs of drug overdose, and signs and symptoms to report immediately to enhance patient knowledge about drug therapy and to promote compliance. Missed doses should not be doubled with next dose because this will lead to overdosage. Patients with myasthenia gravis will experience muscle weakness and should not be pushed to do more than they can tolerate. Level of consciousness is not a concern in patients with myasthenia gravis.

27.

A new patient has come to the clinic. The patient tells the nurse he or she takes donepezil (Aricept). What is the priority nursing assessment related to the medication? (Select all that apply.) Nutritional status

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Blood pressure

History of incontinence

Breath sounds

Muscle strength

Ans:

A, B, C

532

Feedback: Gastrointestinal (GI) adverse effects can include nausea, vomiting, cramps, diarrhea, increased salivation, and involuntary defecation, so it is important for the nurse to assess nutritional status. This is made all the more important by the condition the drug is treating that often results in patients forgetting to eat healthfully. Blood pressure should be monitored because adverse effects of donepezil include hypotension, bradycardia, and heart block. Involuntary defecation and relaxation of bladder sphincter can result in incontinence so the nurse should assess for both incontinence and, if it occurred, skin integrity. Respiratory adverse effects are not associated with donepezil and muscle strength should not be impacted either. 28.

What family of drugs is used in the treatment of myasthenia gravis?

Direct-acting cholinergic agonists

Muscarinic inhibitors

Indirect-acting cholinergic agonists

Nicotinic agonists

Ans:

C Feedback: The drugs used to treat patients with myasthenia gravis include several indirect-acting cholinergic agonists that do not cross the bloodbrain barrier and do not effect acetylcholine transmission in the brain. These drugs include ambenonium (Mytelase), edrophonium (Enlon, Reversol), neostigmine (Prostigmin), and pyridostigmine (Mestinon). Other options are incorrect.

29.

For what purpose would the nurse in the critical care unit administer pyridostigmine?

To reverse neuromuscular junction blockers

To reverse smooth muscle blockade

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

To reverse cholinergic crisis

To prevent myasthenic crisis

Ans:

533

Feedback: Pyridostigmine is approved for management of myasthenia gravis, as an antidote to neuromuscular junction blockers, and to increase survival after exposure to nerve gas. Other options are not indications for use of this drug. 30.

A patient diagnosed with myasthenia gravis is having trouble swallowing. What anticholinesterase inhibitor would be the drug of choice for this patient?

Galantamine

Pyridostigmine

Donepezil

Bethanechol

Ans:

B Feedback: Pyridostigmine is preferred in some cases for the management of myasthenia gravis because it does not need to be taken as frequently and can be given parenterally for patients who are having difficulty swallowing. Galantamine and bethanechol cannot be given parenterally to the patient having difficulty swallowing. Donepezil is not indicated for the treatment of myasthenia gravis but is used to manage Alzheimer dementia, including severe dementia.

31.

The nurse is treating a patient who has been exposed to nerve gas. The provider ordered pyridostigmine (Mestinon) 0.25 mg/kg. The patient weighs 96 kg. What dosage will the nurse administer to this patient?

24 mg

384 mg

11 mg

31.7 mg

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

534

A Feedback: Multiply the patient’s weight times the ordered dose per kilogram: 0.25 × 96 = 24 mg. Other options are incorrect.

32.

The nurse is caring for a patient diagnosed with Sjögren’s syndrome. What medication will the nurse anticipate administering to treat this condition?

Bethanechol

Carbachol

Ambenonium

Pilocarpine

Ans:

D Feedback: Only pilocarpine is indicated for treatment of Sjögren’s syndrome. None of the other medications are indicated for this purpose.

33.

The nurse administers bethanechol to the patient on an empty stomach for what purpose?

To promote rapid absorption

To prevent destruction of the drug

To reduce irritation of stomach lining

To decrease nausea and vomiting

Ans:

D Feedback: Administer bethanechol and all oral forms of direct-acting cholinergic agonists on an empty stomach to decrease nausea and vomiting. The other options do not correctly explain the rationale for administering bethanechol on an empty stomach.

34.

The nurse in the pediatric intensive care unit is caring for an infant with severe gastroesophageal reflux.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

535

What medication, if ordered, would the nurse administer to treat this condition? A)

Bethanechol

Carbachol

Cevimeline

Pilocarpine

Ans:

B Feedback: Only bethanechol is indicated for the treatment of esophageal reflux in infants and children. The other drugs treat intraocular pressure, dry mouth, or to allow surgeons to perform certain surgical procedures.

35.

The nurse is caring for a patient receiving carbachol to treat glaucoma. The patient says he or she has stopped driving at night because he or she just does not see well in the dark. What is the best nursing diagnosis for this patient?

Anxiety related to poor vision

Grief related to loss of driving privileges

Risk for injury related to visual changes

Pain related to altered vision

Ans:

C Feedback: This patient is at risk for injury related to visual changes and requires safety teaching to make the home as safe as possible. Nothing indicates the patient is experiencing anxiety, grief, or pain.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

536

Chapter 33 - Anticholinergic Agents

A student asks the pharmacology instructor to explain the action of anticholinergic agents. What would be the instructor’s best response?

They block nicotinic receptors.

They compete with serotonin for muscarinic acetylcholine receptor sites.

They act to block the effects of the parasympathetic nervous system.

They increase norepinephrine at the neuromuscular junction.

Ans:

C Feedback: Drugs that are used to block the effects of acetylcholine are called anticholinergic drugs. Because this action lyses, or blocks, the effects of the parasympathetic nervous system, they are also called parasympatholytic agents. The drug works by blocking only the muscarinic effectors in the parasympathetic nervous system. They compete with acetylcholine for the muscarinic acetylcholine receptor sites. They do not block the nicotinic receptors and have little or no effect at the neuromuscular junction.

A patient calls the clinic and talks to the nurse. The patient tells the nurse he or she is going on a cruise and is concerned about motion sickness. The patient says that a friend has recommended that he or she see his or her primary care physician to get a prescription for scopolamine. What adverse effect would the nurse inform the patient that using scopolamine may result in?

Pupil constriction

Tachycardia

Diarrhea

Urinary incontinence

Ans:

B Feedback: Scopolamine blocks the parasympathetic nervous system, which may result in dilated pupils and increased heart rate (i.e., tachycardia). Blocking the parasympathetic system also results in decreased GI activity and urinary bladder tone causing constipation and urinary retention.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

537

A 29-year-old man is going on a company-sponsored deep-sea fishing trip in 2 weeks. He comes to the clinic requesting a scopolamine patch because he is afraid that he will get seasick. The medication is prescribed for him and the nurse’s instructions concerning use of the patch will include what?

Shave the area before applying the patch.

The patch’s effectiveness will last about 72 hours.

When replacing the patch, apply the new patch in the same area.

Do not clean the application area before applying the patch.

Ans:

B Feedback: The scopolamine patch is replaced every 3 days (i.e., 72 hours). The scopolamine patch should be applied to a clean, dry, intact, and hairless area of the body. The area should not be shaved because abrasion of the skin could occur and lead to increased absorption. Patches should be placed at new sites each time to avoid skin irritation. The old patch should be removed and the area cleaned.

The nurse is taking a health history on a new patient who has been prescribed propantheline(generic) as adjunctive therapy for peptic ulcers. While collecting the health history, what will the nurse specifically assess for?

Diabetes mellitus

Obsessive-compulsive disorder

Insomnia

Glaucoma

Ans:

D Feedback: Propantheline is contraindicated for a patient with glaucoma because the drug could result in increased intraocular pressure due to pupil dilation. Diabetes mellitus, obsessive-compulsive disorder, and insomnia are not recognized as being adversely affected by this drug.

A nurse is admitting a patient for outpatient eye surgery. The nurse routinely administers preoperative medications for eye surgery and is aware that an increased dosage of a mydriatic is likely when given to a member of what ethnic group?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

African Americans

German Americans

Irish Americans

Scandinavian Americans

Ans:

538

Feedback: African Americans with dark eyes usually require an increased dosage and may have a prolonged time to peak effect. The need for an increased dose appears to be related to the amount of pigment in the person’s eyes because people with darker-pigmented eyes require a higher dose. German, Irish, and Scandinavian Americans generally have less pigmentation in their eyes and are therefore less likely to need a greater dose. 6.

A patient has been newly diagnosed with irritable bowel syndrome (IBS). The nurse knows that the most likely choice of anticholinergic drug to be prescribed for this patient is what?

Atropine (generic)

Dicyclomine (generic)

Glycopyrrolate (Robinul)

Methscopolamine (Pamine)

Ans:

B Feedback: Dicyclomine is the most likely choice of anticholinergic drug for IBS. It relaxes the GI tract and is a frequent choice in the treatment of hyperactive bowel and IBS. Atropine is used to decrease secretions, for bradycardia, pylorospasm, ureteral colic, relaxing the bladder, pupil dilation, and as an antidote for cholinergic drugs. Glycopyrrolate is used to decrease secretions and as an antidote for neuromuscular blockers. Methscopolamine is used as adjunctive therapy for ulcers.

A patient has come to the clinic for a follow-up visit. He or she has been taking glycopyrrolate (Robinul) for adjunctive management of his or her peptic ulcer disease for 1 year. What would the nurse question this patient about?

Diarrhea

Oral discomfort

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Headaches

Dyspnea

Ans:

539

Feedback: Patients taking anticholinergic drugs will have dry mucous membranes. Oral hygiene will be extremely important during glycopyrrolate therapy to avoid gum disease. The nurse should encourage the patient to suck on sugarless lozenges and perform frequent oral care. Diarrhea, headaches, or dyspnea should not be a concern with this drug. 8.

A 73-year-old male with Parkinson’s disease comes to the clinic for routine care. The man has a comorbidity of benign prostatic hyperplasia (BPH). An anticholinergic drug is prescribed for the patient. What is the priority teaching point the nurse must give to the patient in regard to his medication?

Avoid excessively hot environments.

Avoid driving his car while taking the drug.

Call his doctor if he cannot urinate.

Take the drug with food to avoid gastrointestinal (GI) upset.

Ans:

C Feedback: Due to the patient’s diagnosis and drug therapy, calling the doctor if he cannot urinate would be the most important instruction. Older men with BPH have difficulty urinating and if an anticholinergic drug is taken, this can lead to urinary retention and bladder sphincter spasm. The patient should be encouraged to empty his bladder before taking the drug. Because this is an anticholinergic drug, avoiding hot environmental temperatures (reduced ability to perspire) and driving or operating machinery (possible central nervous system effects) should also be encouraged as well as taking the medication with food to help with GI upsets. However, the highest priority is addressing urinary retention issues.

A patient has been given atropine to cause mydriasis and cycloplegia. What is the expected outcome for this patient?

Constricted pupils and blurred vision

Dilated pupils and improved vision

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Dilated pupils and blurred vision

Dry eyes and constricted pupils

Ans:

540

Feedback: Atropine can be used to cause dilated pupils, which is mydriasis resulting in cycloplegia, which is the inability of the lens of the eye to accommodate leading to blurred vision. 10.

Because the effects of atropine are dose related, at what dose of atropine would the nurse expect to see a patient having difficulty speaking?

0.5 mg

1.0 mg

2.0 mg

5.0 mg

Ans:

D Feedback: Toxicity of atropine is dose related. With 5.0-mg dosage, the nurse would expect marked speech disturbances, difficulty swallowing, restlessness, fatigue, headache, dry and hot skin, difficulty voiding, and reduced intestinal peristalsis. With 0.5-mg dosage of atropine, slight cardiac slowing, dryness of the mouth, and inhibition of sweating would be noticed. Definite dryness of the mouth and throat, thirst, rapid heart rate, and pupil dilation would be evident with 1.0-mg dosage. With 2.0-mg dosage, the nurse would note rapid heart rate, palpitations, marked mouth dryness, dilated pupils, and some blurring of vision.

11.

A 66-year-old woman presents at the clinic complaining of motion sickness. The physician orders a scopolamine patch. Which statement by the patient leads you to believe she knows how to use the patch?

I will place it on my chest each morning after I shower.

I will use it only if I feel sick to my stomach.

I will change the patch every 4 hours. I can use the patches for 1 week.

I will change the patch every 3 days.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

541

D Feedback: The scopolamine patch should be applied to a clean, dry, intact, and hairless area of the body. The area should not be shaved because abrasion of the skin could occur and lead to increased absorption. Patches should be placed at new sites each time to avoid skin irritation. The old patch should be removed and the area where it had been should be cleaned.

12.

A patient is scheduled for surgery in 2 hours. The physician orders preoperative medications glycopyrrolate (Robinul) 1 mg and meperidine (Demerol) 50 mg intramuscularly. The nurse would hold the medication and consult the provider if the patient had what disorder?

Tachycardia

Paralytic ileus

Hypertension

Diabetes mellitus

Ans:

B Feedback: These drugs are also contraindicated with any condition that could be exacerbated by blockade of the parasympathetic nervous system. These conditions include stenosing peptic ulcer, intestinal atony, paralytic ileus, gastrointestinal (GI) obstruction, severe ulcerative colitis, and toxic megacolon, all of which could be exacerbated with a further slowing of GI activity. Tachycardia, hypertension, and diabetes would not be contraindications to administration of glycopyrrolate.

13.

The nurse is caring for a patient with atropine poisoning. What drug will the nurse administer to reverse these effects?

Bethanechol

Neostigmine

Edrophonium

Physostigmine

Ans:

D Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

542

Physostigmine can be used as an antidote for atropine poisoning. A slow intravenous injection of 0.5 to 4 mg (depending on the weight of the patient and the severity of the symptoms) usually reverses the delirium and coma of atropine toxicity. Physostigmine is metabolized rapidly, so the injection may need to be repeated every 1 to 2 hours until the atropine has been cleared from the system. 14.

Because of the systemic effects of anticholinergic drugs, the nurse understands that older adults using these drugs are susceptible to what?

Heat stroke

Diarrhea

Urinary frequency

Hypotension

Ans:

A Feedback: Because older patients are more susceptible to heat intolerance owing to decreased body fluid and decreased sweating, extreme caution should be used when an anticholinergic drug is given that reduces sweating still further and can result in heat stroke. Older adults are not more susceptible to diarrhea, urinary frequency, and hypotension.

15.

A 50-year-old female patient received atropine and meperidine (Demerol) preoperatively. After surgery, the patient complains of mouth dryness. What is the nurse’s best response?

Preoperative medications decrease saliva production but it is temporary and will improve.

This is the result of all of the blood and fluid you lost during surgery.

You are probably dehydrated. The IV fluids you are receiving will correct the problem.

The preoperative medication causes an electrolyte imbalance making your mouth feel dry.

Ans:

A Feedback: Patients receiving anticholinergic drugs must be monitored for dry mouth, difficulty swallowing, constipation, urinary retention, tachycardia, pupil dilation and photophobia, cycloplegia and blurring of vision, and heat intolerance caused by a decrease in sweating.

16.

Anticholinergics have varied effects on the body. What is one of those effects?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Preventing vagal stimulation

Stimulating the release of acetylcholine

Increasing respiratory tract secretions

Increasing secretion of sweat glands

Ans:

543

Feedback: Adjunctive therapy to treat peptic ulcer, overactive gastrointestinal (GI) disorders; neurogenic bladder or cystitis; parkinsonism; biliary or renal colic; to decrease secretions pre-operatively; treatment of partial heart block associated with vagal activity; treatment of rhinitis or anticholinesterase poisoning. 17.

Anticholinergic drugs are used in ophthalmology because they produce what effect?

Sedation

Pupil dilation

Pupil constriction

Decreased lacrimal secretions

Ans:

B Feedback: Patients receiving anticholinergic drugs must be monitored for dry mouth, difficulty swallowing, constipation, urinary retention, tachycardia, pupil dilation and photophobia, cycloplegia and blurring of vision, and heat intolerance caused by a decrease in sweating.

18.

A male patient, age 75, is started on flavoxate (Urispas). What adverse effects should the patient be made aware of?

Rash

Headache

Weight gain

Blurred vision

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

544

D Feedback: The patient should be warned of possible blurring of vision when taking this drug, which could put the patient at risk for injury if precautions are not taken. Adverse effects could include central nervous system adverse effects, such as blurred vision, pupil dilation and resultant photophobia, cycloplegia, and increased intraocular pressure, all of which are related to the blocking of the parasympathetic effects in the eye.

19.

The nurse administers atropine preoperatively for what purpose?

Providing sedation

Dilating the pupils

Relaxing bladder muscles

Decreasing secretions

Ans:

D Feedback: Atropine is administered preoperatively to reduce secretions, but added indications include gastrointestinal (GI) effects that reduce GI activity. Atropine has no sedating effects, and is not given preoperatively for its pupil dilation effects, or for its bladder muscle relaxation effects.

20.

What is the recommended dosage for atropine for a patient with a bradycardia?

0.2 to 0.4 mg

0.3 to 0.5 mg

0.4 to 0.6 mg

0.5 to 0.7 mg

Ans:

C Feedback: The usual dosage for atropine is 0.4 to 0.6 mg intramuscularly, subcutaneously, or IV; use caution with older patients. The other options are incorrect dosages and therefore wrong.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

21.

545

When the nurse administers an anticholinergic drug to a child, the nurse would carefully assess for what effect that is more likely to occur in children than in adults?

Rashes

Pupil dilation

Heat intolerance

Tachycardia

Ans:

C Feedback: Children are often more sensitive to the adverse effects of the drugs, including constipation, urinary retention, heat intolerance, and confusion. Similar effects are seen in children related to pupil dilation. Tachycardia and rashes would not be associated with these drugs in children.

22.

The nurse is writing a plan of care for an older adult patient taking flavoxate. What is an appropriate goal for this patient’s plan of care?

The patient will have adequate pupil dilation within 24 hours.

The patient will experience fewer bronchospasms within 8 hours.

The patient will experience fewer symptoms of prostatitis within 24 hours.

The patient will show resolution of peptic ulcer within 2 weeks.

Ans:

C Feedback: Flavoxate is used to relieve symptoms of dysuria, urgency, nocturia, suprapubic pain, frequency, and incontinence associated with cystitis, prostatitis, urethritis, urethrocystitis, and urethrotrigonitis. As a result, the nurse would know the drug was working when the patient experienced fewer symptoms related to any one of these conditions. Because the drug is not indicated for pupil dilation, bronchospasm, or treatment of a peptic ulcer, the nurse’s outcomes would not be related to these conditions.

23.

What drug would the nurse administer to treat a patient diagnosed with bronchospasm associated with chronic obstructive pulmonary disease (COPD)? Atropine

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Flavoxate

Glycopyrrolate

Ipratropium

Ans:

546

Feedback: Ipratropium is indicated for the treatment of bronchospasm associated with COPD. Atropine is indicated for use to decrease secretions, bradycardia, pylorospasm, ureteral colic, relaxing of bladder, emotional liability with head injuries, antidote for cholinergic drugs, and pupil dilation. Flavoxate is used for the symptomatic relief of dysuria, urgency, nocturia, suprapubic pain, frequency, and incontinence associated with cystitis, prostatitis, urethritis, urethrocystitis, and urethrotrigonitis. Glycopyrrolate is indicated to decrease secretions before anesthesia or intubation, used orally as an adjunct for treatment of ulcers, to protect the patient from the peripheral effects of cholinergic drugs and to reverse neuromuscular blockade 24.

A 72-year-old female patient is being discharged home from the hospital on newly prescribed anticholinergic drugs. A referral to the home health nurse has been made. What priority teaching point will the home health nurse emphasize when discussing the patient’s drugs?

Do not drive or use machinery.

Take lots of hot baths or showers.

Keep the house warm to avoid a chill.

Limit intake of fluids.

Ans:

A Feedback: Safety precautions may be needed if blurred vision and dizziness occur. The patient should be urged not to drive or perform tasks that require concentration and coordination. The home care nurse would not teach the patient to take hot baths or showers. The patient would be cautioned about inability to perspire in hot environments and to avoid them. Fluid intake should not be limited.

25.

The nurse is caring for a new mother who received atropine before undergoing a laparoscopic tubal ligation. The patient tells the nurse that she is breast-feeding her baby and asks whether she can breastfeed when she gets home. What is the nurse’s best response?

You can breast-feed when you get home because the drugs given before surgery will be out of your system.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

547

You can breast-feed as soon as you get home because atropine will not cross into the breast milk.

Discard all breast milk for the next week and feed the baby formula before returning to breastfeeding.

Discard all breast milk for the next 24 hours and feed formula until tomorrow when you can nurse your baby.

Ans:

D Feedback: Lactating mothers should not breast-feed after receiving atropine until the drug has been fully excreted. Because atropine crosses into breast milk and the duration of action is 4 hours, it is safest to have the mother wait 24 hours to breast-feed, continuing to pump and discard the milk while feeding the infant formula. After 24 hours, she can return to breast-feeding because any atropine in breast milk will be eliminated. There is no need to wait a week and although the drug may be out of the bloodstream, the milk in her breast will still contain atropine.

26.

The patient, who takes an anticholinergic medication, tells the nurse how much he or she enjoys experimenting with different herbal teas. What herbs will the nurse caution the patient to avoid? (Select all that apply.)

Burdock

Thyme

Rosemary

Parsley

Tumeric

Ans:

A, C, E Feedback: The risk of anticholinergic effects can be exacerbated if anticholinergic agents are combined with burdock, rosemary, or turmeric and used as herbal therapy. Advise patients who use herbal therapies to avoid these combinations. Nothing indicates that thyme or parsley is contraindicated with anticholinergic medications.

27.

A 27-year-old male patient is taking an anticholinergic drug as adjunctive therapy to treat his peptic ulcer disease. The patient comes to the clinic and tells the nurse that he feels his heart beating. What adverse effect is the patient experiencing from the anticholinergic medication?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Tachypnea

Tachycardia

Hypotension

Urinary frequency

Ans:

548

Feedback: Tachycardia and palpitations are possible adverse effects related to blocking of the parasympathetic effects on the heart; this would give the sensation of a heart beating. Tachypnea, hypotension, and urinary frequency are not generally adverse effects of anticholinergic medications and they would not be evident the way the patient described. 28.

The 10-year-old child is brought to the respiratory clinic and is prescribed ipratropium (Atrovent). Prior to administering the medication, what would the nurse assess for?

Cardiac disorders

Hypertension

Recent injuries

Breath sounds

Ans:

D Feedback: The nurse would assess breath sounds because ipratropium is indicated for treatment of bronchospasm so it is important to get a baseline assessment to determine whether the drug improves the patient’s condition after administration. Cardiac disorders, hypertension, and recent injuries are all valid assessments but are likely to have been assessed during admission history taking and are not related to the purpose of administering the drug.

29.

The nurse is caring for a patient who has just been started on hyoscyamine (Symax and others) as adjunctive therapy for his or her peptic ulcers. When developing this patient’s plan of care, what nursing diagnosis would the nurse establish related to the purpose of administering this drug?

Chronic pain related to peptic ulcer disease

Impaired urinary elimination related to bladder relaxation

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Risk for hyperthermia related to decreased ability to perspire

Decreased cardiac output related to cardiovascular effects

Ans:

549

Feedback: All these nursing diagnoses could be used for the patient receiving an anticholinergic drug, but only chronic pain is related to the drug this patient is receiving and the purpose for which it is being administered. 30.

What does parasympathetic nervous system blockade cause? (Select all that apply.)

Decrease in heart rate

Decrease in urinary bladder tone

Increase in heart rate

Pupil constriction

Decrease in gastrointestinal (GI) activity

Ans:

B, C, E Feedback: Parasympathetic nervous system blockade causes an increase in heart rate, decrease in GI activity, decrease in urinary bladder tone and function, and pupil dilation and cycloplegia.

31.

The patient was involved in a motor vehicle accident and experienced a severe closed head injury resulting in increased intracranial pressure. While intubating the patient, his or her heart rate dropped and did not return to acceptable levels after the tube was in place so the nurse received an order to administer atropine. The physician is performing an exam to determine whether brain death has occurred. What assessment for brain death will be postponed until all atropine is excreted and no longer exerting an effect.

Pupil response

Electroencephalogram

Brainstem reflexes

Computed tomographic scan of the brain

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

550

A Feedback: One test for neurological function is to shine a light in the patient’s eyes to test pupil reaction to light. Because this patient has received atropine, pupils will be dilated and will not react normally to light. This could be mistaken as an indication of brain death if the nurse did not know atropine had been administered. This test will be postponed until the pupils are no longer dilated by the medication. The other tests would not have to be postponed because of atropine.

32.

The nurse is caring for a patient who is unconscious and requires an anticholinergic drug to treat bradycardia. What drug can the nurse administer IV for this purpose?

Ipratropium (Atrovent)

Dicyclomine (generic)

Methscopolamine (Pamine)

Atropine (generic)

Ans:

D Feedback: Atropine can be given intramuscularly (IM), subcutaneously, or IV for the treatment of bradycardia. Ipratropium is administered by inhalation to treat bronchospasm. Dicyclomine is used to treat irritable or hyperactive bowel and can be given orally or IM. Methscopolamine is administered orally to treat peptic ulcers.

33.

What is the proper dosage of scopolamine administered by the nurse transdermally to reduce nausea and vomiting associated with motion sickness?

0.32 to 0.65 mg

1.5 mg

3 mg

3.5 mg

Ans:

B Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

551

The scopolamine transdermal patch is 1.5 mg. If administered subcutaneously (SC) or intamuscularly (IM), the dosage would be 0.32 to 0.65 mg. Pediatric dosage is 0.006 mg/kg subcutaneous, IM, or IV. 34.

The nurse receives an order to administer glycopyrrolate 0.002 mg/kg to the pediatric patient preoperatively. The patient weighs 14 lbs. If 1 pound = 2.2 kg, how many kilograms would the nurse administer to this patient?

0.013 mg

0.13 mg

0.028 mg

0.28 mg

Ans:

A Feedback: Begin by calculating the child’s weight in kilogram 14 lbs/2.2 kg = 6.36 kg. Multiply child’s weight in kg by dosage in kg 6.36 × 0.002 = 0.01272 rounded to 0.013 mg.

35.

A mother calls the pediatric clinic and tells the nurse the family is planning a cross-country trip to visit some attractions the children will enjoy. Her 2-year-old child gets motion sickness soon after starting the car and she would like some scopolamine patches to use. What is the nurse’s best response?

One patch lasts for 3 days. How long will you be driving?

Children cannot receive scopolamine orally or by patch.

It might be better to use the oral form of the drug only on days it is needed.

Scopolamine loses effectiveness if it is used for several days.

Ans:

B Feedback: Scopolamine does not come in a pediatric oral or patch formulation. Scopolamine can only be given subcutaneously, or IV. Because children cannot use the patch, asking how many days they will be traveling or suggesting oral prescription when that form is not available is incorrect. Scopolamine does not lose effectiveness.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

552

Chapter 34 - Introduction to the Endocrine System

The nurse is discussing the endocrine system with a class of nursing students. What substance would the nurse label as a hormone?

Acetylcholine

Norepinephrine

Nucleic acid

Serotonin

Ans:

B Feedback: A hormone is secreted directly into the bloodstream and travels from the site of production to react with specific receptor sites to cause an action. Norepinephrine, which is a neurotransmitter, is a hormone when it is produced in the adrenal medulla, secreted into circulation, and travels to norepinephrine receptor sites to cause an effect. Acetylcholine and serotonin are neurotransmitters, but are not hormones. Nucleic acid is used to build deoxyribonucleic acid and ribonucleic acid.

What organ should the nurse recognize as the coordinating center for the nervous and endocrine responses to internal and external stimuli?

Hypothalamus

Pituitary gland

Thyroid gland

Parathyroid gland

Ans:

A Feedback: The hypothalamus is the coordinating center for the nervous and endocrine responses to internal and external stimuli. The pituitary, thyroid, and parathyroid glands all play an important role in maintaining homeostasis, but they do not connect the nervous and endocrine systems.

What criteria can the nurse use to describe all hormones?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

They are produced in very large amounts.

They circulate until they are used by receptor cells.

They are secreted directly into the tissue where they react.

They travel in the blood to specific receptor sites.

Ans:

553

Feedback: Hormones are chemicals that are produced in the body and meet specific criteria. All hormones are produced in very small amounts and are secreted directly into the bloodstream. They travel in the blood to specific receptor sites throughout the body and are immediately broken down. 4.

The nurse is caring for a patient with abnormal calcium levels. What thyroid hormone does the nurse expect this will impact?

Aldosterone

Calcitonin

Erythropoietin

Insulin

Ans:

B Feedback: Calcitonin is produced and secreted by the thyroid gland in direct response to serum calcium levels. Aldosterone is an adrenocorticoid hormone that is released in response to adrenocorticotropic hormone. Erythropoietin is released by the juxtaglomerular cells in the kidney in response to decreased pressure or decreased oxygenation of the blood flowing into the glomerulus. Insulin is produced by the pancreas in response to varying blood glucose levels.

The nurse explains the end result of the hypothalamus in regulating the central nervous system (CNS), autonomic nervous system (ANS), and endocrine system is what?

Regulation of the negative feedback system

Creation of a diurnal rhythm

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Maintenance of homeostasis

Production of prolactin-inhibiting factor (PIF)

Ans:

554

Feedback: The hypothalamus maintains internal homeostasis by sensing blood chemistries and by stimulating or suppressing endocrine, autonomic, and CNS activity. In essence, it can turn the ANS and its effects on or off. The negative feedback system is one way homeostasis is maintained. When the hypothalamus senses a need for a particular hormone, it secretes a releasing factor directly into an area such as the anterior pituitary. This causes the area to produce a hormone. When the hypothalamus senses a rising level of the hormone it stops secreting the releasing factor, which decreases the hormone production. When this occurs the hypothalamus senses the falling hormone level and the releasing factor is secreted again. This process is how the hormone level is maintained. Diurnal rhythm refers to the release of hormones at various times of the day. PIF, produced by the hypothalamus, acts as a regulator to shut off production of hormones when levels become too high. 6.

While caring for a diabetic patient, the nurse explains that normally insulin is produced by the pancreas and does what when reacting with the human cell?

Metabolizes glucose

Allows water to enter the cell

Alters cellular messenger ribonucleic acid (RNA)

Changes the cell permeability to glucose

Ans:

D Feedback: Insulin reacts with specific receptor sites on the cell membrane to change the cell’s permeability to glucose to allow glucose to enter the cell. It does not affect water transport or messenger RNA. Insulin does not metabolize glucose but rather helps it move into the cell where it supplies energy for cellular activity.

What hormone enters the cell and reacts with a receptor inside the cell to change messenger ribonucleic acid and affect the cell’s function?

Estrogen

Insulin

Calcitonin

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Thyroid-stimulating hormone

Ans:

555

Feedback: Estrogen enters the cell and reacts with a receptor site inside of the cell to make changes and produce an action. This does not happen quickly, and it may take months to years to produce the changes. Estrogen, calcitonin, and thyroid-stimulating hormone react with specific receptor sites on the cell membrane to stimulate change and action within the cell. 8.

The patient’s body modulates pain perception as a result of the production of what in the intermediate lobe of the pituitary gland?

Antidiuretic hormone (ADH)

Endorphins

Adrenocorticotropic hormone (ACTH)

Oxytocin

Ans:

B Feedback: Endorphins and enkephalins are produced by the intermediate lobe of the pituitary gland. Oxytocin and ADH are produced by the posterior pituitary gland, and ACTH is produced by the anterior pituitary gland.

The nurse explains the purpose of the negative feedback system used by the endocrine system is what?

To change the environment of the pituitary gland

To regulate hormone release

To maintain hormone concentration at a certain level

To control the action of hormones

Ans:

C Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

556

The negative feedback system is a control system in which increasing levels of a hormone lead to decreased levels of releasing and stimulating hormones, leading to decreased hormone levels, which stimulates the release of releasing and stimulating hormones; it allows tight control of the endocrine system. It does not involve changing the environment or control the action of hormones. 10.

Melanocyte-stimulating hormone (MSH) released from the anterior pituitary is important in humans because of its suspected ability to do what?

Block the perception of pain

Change the color of skin in some environments

Stimulate fat mobilization

Stimulate nerve growth and development

Ans:

D Feedback: MSH might be important for nerve growth and development in humans. Animals use MSH to change skin color as part of protective camouflage, but it does not have this effect in humans. Lipotropins stimulate fat mobilization. Endorphins and enkephalins are hormones that block the perception of pain.

11.

The nurse is caring for a patient diagnosed with a condition resulting in inadequate production of cholecystokinin. What would the nurse expect to find when assessing this patient?

Elevated serum sodium and reduced serum potassium levels

Decreased bowel sounds

Increased numbers of red blood cells

Increased serum calcium levels

Ans:

B Feedback: Cholecystokinin is secreted by the intestine and decreases gastric movement resulting in diminished bowel sounds as well as stimulation of bile and pancreatic juice secretion. Aldosterone causes sodium retention and potassium excretion. Erythropoietin increases red blood cell production. Parathyroid hormone causes an increase in serum calcium levels.

12.

A group of nursing students are developing a presentation on hormones. What hormone will the

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557

students’ presentation identify as regulating the metabolic rate and influencing the growth and development of the body? A)

Parathyroid hormone or parathormone

Thyroid hormone

Cortisol

Insulin

Ans:

B Feedback: Thyroid hormone regulates the metabolic rate of the body and greatly influence growth and development. Parathormone, cortisol, and insulin do not regulate the metabolic rate or influence growth and development.

13.

The patient’s anterior pituitary hormone secretion is impacted by time of day and activity level, which the nurse assesses as what?

Diurnal rhythm

Physiological rhythm

Circadian rhythm

Biannual rhythm

Ans:

A Feedback: The anterior pituitary hormones are released in a rhythmic manner into the bloodstream. Their secretion varies with time of day (often referred to as diurnal rhythm) or with physiological conditions, such as exercise or sleep. A biannual rhythm would be twice a year. Circadian rhythm is indicated by when the patient prefers to sleep or wake, such as those who describe themselves as morning people. There is no such thing as a physiological rhythm.

14.

Some hormones react with specific receptor sites on a cell membrane and stimulate what?

Meiosis

Cyclic adenosine monophosphate (cAMP)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Increase in hormonal inactivity

Decrease in hormonal activity

Ans:

558

Feedback: Some hormones react with specific receptor sites on a cell membrane to stimulate the nucleotide cAMP within the cell to elicit an effect. Hormones that react with specific receptor sites do not stimulate miosis, or a change in amount of hormonal activity, either an increase or decrease, which would be regulated by a negative feedback mechanism. 15.

Estrogen enters the cell and reacts with a receptor site. What is the final result of this reaction?

Deoxyribonucleic acid (DNA) is affected.

Ribonucleic acid enters the cell nucleus.

Alteration in cellular function

Changes messenger RNA

Ans:

C Feedback: Estrogen enters the cell and reacts with a receptor site inside the cell to change messenger RNA, which enters the cell nucleus to affect cellular DNA, and the final result is an alteration in the cell’s function.

16.

The nurse is preparing a class on the endocrine system for students. What benefit is served by the positioning of the hypothalamus in the brain? (Select all that apply.)

Close to other important areas of the brain

Able to influence and be influenced by emotions and thoughts

Poorly protected by the bloodbrain barrier

Floats within ventricles of the brain

Protected from the limbic system

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

559

A, B, C Feedback: Situated at the base of the forebrain, the hypothalamus receives input from virtually all other areas of the brain, including the limbic system, cerebral cortex and the special senses that are controlled by the cranial nerves: smell, sight, touch, taste, hearing. Because of its positioning, the hypothalamus is able to influence, and be influenced by, emotions and thoughts. The hypothalamus also is located in an area of the brain that is poorly protected by the bloodbrain barrier, so it is able to act as a sensor to various electrolytes, chemicals, and hormones that are in circulation and do not affect other areas of the brain. It does not float within the ventricles of the brain, and it is located to allow input from the limbic system.

17.

The nurse is caring for a pregnant patient. What hormone must be secreted to cause uterine contractions?

Oxytocin

ADHD

Estrogen

Enkephalins

Ans:

A Feedback: The pituitary is made up of three lobes: anterior, intermediate, and posterior. The posterior lobe stores two hormones produced by the hypothalamus, ADH and oxytocin. Oxytocin stimulates uterine smooth muscle contraction in late phases of pregnancy and also causes milk release or let down reflex in lactating women. The posterior lobe does not store estrogen or enkephalins. ADHD (i.e., attention deficit hyperactivity disorder is a disease process, not a hormone.

18.

What receptors in the body stimulate the hypothalamus to release antidiuretic hormone (ADH)?

Diuretic receptors

Osmoreceptors

Alpha receptors

Nicotinic receptors

Ans:

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560

Feedback: The osmoreceptors in the hypothalamus stimulate the release of ADH. There is no such thing as a diuretic receptor. Alpha receptors are associated with the sympathetic nervous system and nicotinic receptors are associated with the parasympathetic nervous system. 19.

What are the areas of the hypothalamus called that are specifically sensitive to certain stimuli to regulate body functions?

Nodes

Lobes

Neurocenters

Epicenters

Ans:

C Feedback: The hypothalamus has various neurocentersareas specifically sensitive to certain stimulithat regulate various body functions, including body temperature, thirst, hunger, water retention, blood pressure, respiration, reproduction, and emotional reactions. Areas of special sensitivity in the hypothalamus are not called depots, lobes, or epicenters.

20.

The hypothalamus receives input from virtually all other areas of the brain. Where is the hypothalamus located?

Behind the frontal lobe

In the substantia nigra

At the base of the pons

At the base of the forebrain

Ans:

D Feedback: Situated at the base of the forebrain, the hypothalamus receives input from virtually all other areas of the brain, including the limbic system and the cerebral cortex. Therefore, the other options are incorrect.

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21.

561

The hypothalamus fine-tunes and regulates the release of hormones using what process?

Negative feedback systems

Indirect feedback systems

Direct local input

Direct release of hormones into bloodstream

Ans:

A Feedback: The fine-tuning and regulation of hormone release through the hypothalamus is often regulated by a series of negative feedback systems. Other options are incorrect answers as they are distracters for this question.

22.

To better understand the negative feedback system, what might the nurse compare it with?

The actions of use and disuse

The law of supply and demand

The concept of need and use

The contract of give and take

Ans:

B Feedback: A negative feedback system works much like the law of supply and demand in business. In business, when the supply of a product is adequate, production of that product will be cut back because demand is not there. Other options are distracters for this question.

23.

When the hypothalamus senses a need for thyroid hormone, where does it secrete the releasing factor thyrotropin-releasing hormone (TRH)?

Directly into the posterior pituitary

Directly into the bloodstream

Directly into the anterior pituitary

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Directly into the thyroid gland

Ans:

562

Feedback: When the hypothalamus senses a need for a particular hormone, it secretes TRH directly into the anterior pituitary. Other options, therefore, are incorrect. 24.

What hormones does the pancreas produce and release that aids in the body’s varying blood glucose levels? (Select all that apply.)

Insulin

Antidiuretic hormone (ADH)

Glucagon

Somatostatin

Amylase

Ans:

A, C, D Feedback: Hormones other than stimulating hormones are also released in response to stimuli. For example, the endocrine pancreas produces and releases insulin, glucagon, and somatostatin from different cells in response to varying blood glucose levels. ADH does not respond to blood glucose levels but controls sodium and potassium levels. Amylase is an enzyme released by the pancreas.

25.

The hypothalamicpituitary axis (HPA) functions through one of two processes to regulate hormone production. One of these processes is the negative feedback system. What is the other process?

Direct use of inhibiting factors

Indirect use of feedback loop

Direct use of releasing factors

Indirect use of stimulating factors

Ans:

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563

Feedback: The HPA functions through negative feedback loops or the direct use of inhibiting factors to constantly keep particular hormones regulated. Other options are incorrect because hormones are not regulated by feedback loops, releasing factors, or stimulating factors. 26.

The nurse administers an exogenous hormone to the patient. How does the nurse’s action impact the endocrine system? (Select all that apply.)

May decrease exogenous hormone levels

May increase hormone levels in the body

May stop production of releasing and stimulating hormones

May lead to a decrease in the normal production of the hormone

May increase the endogenous hormone levels

Ans:

B, C, D Feedback: Supplying an exogenous hormone may increase the hormone levels in the body, but then might affect the hypothalamicpituitary axis (HPA) to stop production of releasing and stimulating hormones, leading to a decrease in the body’s normal production of the hormone. Supplying exogenous hormone will not cause a decrease in exogenous hormone levels nor will it cause an increase in endogenous hormone levels.

27.

The nursing instructor is talking with her clinical group about the hypothalamicpituitary axis (HPA) and what happens when a need arises to interact with the total system. The instructor explains that this can create what?

A negative feedback system

Homeostasis

Complications

Maximum efficiency

Ans:

C Feedback:

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564

This system (i.e., the HPA) also can create complications, especially when a need exists to override or interact with the total system, as is the case with replacement therapy or treatment of endocrine disorders. Interactions with the total system cannot create a negative feedback system, homeostasis, or maximum efficiency. The other options are incorrect. 28.

What is the connecting link between the nervous system and the endocrine system?

Hypothalamus

Thalamus

Medulla oblongata

Posterior pituitary

Ans:

A Feedback: The main connecting link between the nervous system and the endocrine system is the hypothalamus, which responds to nervous system stimulation by producing hormones. The thalamus and medulla oblongata are part of the nervous system and the posterior pituitary is part of the endocrine system but none of these represents a link between the two systems.

29.

When the student develops a poster of the endocrine system, what gland will be excluded because it is not classified as a major organ of the endocrine system?

Hypothalamus

Pituitary

Thyroid

Gallbladder

Ans:

D Feedback: The gallbladder is not part of the endocrine system and does not secrete hormones. All other options are organs of the endocrine system.

30. A)

What is a releasing hormone? Chemical that interacts with a hormone to activate it

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Chemical released by the body to stimulate the hypothalamus

Chemical released by the body organs to stimulate the pituitary

Chemical released by the hypothalamus into the anterior pituitary

Ans:

565

Feedback: Releasing hormones or factors are chemicals released by the hypothalamus into the anterior pituitary to stimulate the release of anterior pituitary hormones. The releasing hormone does not activate a hormone but stimulates its production. It does not stimulate the glands (hypothalamus or pituitary) but rather stimulates release of an anterior pituitary hormone. 31.

The nurse overhears a physician talking about the master gland. What gland does the nurse recognize is being discussed?

The pituitary gland

The hypothalamus gland

The thyroid gland

The parathyroid gland

Ans:

B Feedback: Scientists now designate the hypothalamus as the master gland because it has even greater direct regulatory effects over the neuroendocrine system, including stimulation of the pituitary gland to produce its hormones. The pituitary gland was formerly considered the master gland, but new research has helped scientists realize it is the hypothalamus that is the master gland.

32.

The nurse administers a thyroid hormone replacement pill to the patient. What effect will this action have on the patient’s production of thyroid hormones?

Stimulates the gland that normally produces that hormone

Stops production of releasing and stimulating hormones

Initiates the negative feedback system

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Stimulates the hypothalamicpituitary axis

Ans:

566

Feedback: Supplying an exogenous hormone may increase the hormone levels in the body, but it then may affect the hypothalamicpituitary axis (HPA) to stop production of releasing and stimulating hormones, leading to a decrease in the body’s normal production of the hormone. It does not stimulate the gland or the HPA. It also does not trigger a negative feedback response. 33.

What hormones do not have a target organ to produce hormones and cannot be regulated by the same feedback as other hormones?

Growth hormone and prolactin

Estrogen and progesterone

Erythropoietin and renin

Insulin and glucagon

Ans:

A Feedback: Two of the anterior pituitary hormones (i.e., growth hormone and prolactin) do not have a target organ to produce hormones and so cannot be regulated by the same type of feedback mechanism. Estrogen and progesterone have the uterus, ovaries, and breast, as their target organs. The target organs for erythropoietin is the bone marrow, for renin it is the arteries, and insulin and glucagon come from the pancreas to stimulate cells to metabolize glucose and regulate serum glucose levels

34.

What qualifies the hypothalamus to be called the master gland?

It regulates the nervous and endocrine responses to stimuli.

It stimulates the pituitary gland to control the endocrine system.

It combines the nervous and endocrine system to work together.

It produces all of the releasing hormones in the body.

Ans:

B Feedback:

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567

The hypothalamus gland is called the master gland of the neuroendocrine system because it regulates both nervous and endocrine responses to internal and external stimuli. There is more to the hypothalamus than just its stimulation of the pituitary gland or its production of releasing hormones that leads it to be considered the master gland. The neuroendocrine system combines the nervous and endocrine systems to work closely together to maintain regulatory control and homeostasis in the body.

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568

Chapter 35 - Hypothalamic and Pituitary Agents

A patient suspected of having Cushing’s disease comes to the clinic. What drug might the nurse administer to test for adrenal function and responsiveness?

Corticotropin

Menotropins

Thyrotropin alfa

Chorionic gonadotropin

Ans:

A Feedback: Corticotropin (ACTH) and cosyntropin are used for diagnostic purposes to test adrenal function and responsiveness. Menotropin is a purified preparation of gonadotropins and is used as a fertility drug. Thyrotropin alfa is used as adjunctive treatment for radioiodine ablation of thyroid tissue remnants in patients who have undergone a near-total to total thyroidectomy for well-differentiated thyroid cancer and who do not have evidence of metastatic thyroid cancer. Chorionic gonadotropin acts like luteinizing hormone and stimulates the production of testosterone and progesterone.

A nurse is working at a fertility clinic. Today she is administering ganirelix acetate (Antagon) to a woman participating in a fertility research program. By what route is this drug administered?

Orally

Subcutaneously

Intramuscularly

Ans:

B Feedback: Ganirelix acetate (Antagon) is administered subcutaneously and cannot be administered orally, intramuscularly, or intravenously.

A patient is taking leuprolide (Lupron) to treat prostatic cancer. The nurse caring for this patient is careful to monitor for what?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Diarrhea

Urinary retention

Peripheral edema

Increased appetite

Ans:

569

Feedback: Peripheral edema is an identified adverse effect of leuprolide therapy. Constipation not diarrhea; urinary frequency not urinary retention; and anorexia not increased appetite are also identified adverse effects. 4.

After administering somatropin (Saizen) to an 11-year-old patient with growth failure, what outcome would indicate that the drug should be stopped?

Early sexual development

Thyroid overactivity

Closure of the epiphyses in long bones

Gynecomastia

Ans:

C Feedback: Closure of the epiphyses is a sign that the drug should be stopped. Early sexual development, thyroid overactivity, and gynecomastia would not be associated with this drug.

The nurse administers desmopressin (DDAVP) to the patient to treat diabetes insipidus. What assessment finding would indicate to the nurse that the desmopressin is producing a therapeutic effect?

Decreased urine output

Decreased water reabsorption

Increased plasma osmolarity

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Decreased blood volume

Ans:

570

Feedback: Desmopressin produces its antidiuretic activity in the kidneys, causing the cortical and medullary parts of the collecting duct to become permeable to water, thereby increasing water reabsorption and decreasing urine formation. These activities reduce plasma osmolarity and increase blood volume. 6.

A patient with diabetes insipidus is taking desmopressin (DDAVP). He or she is complaining of drowsiness, lightheadedness, and headache. What does the nurse suspect that he is experiencing?

An allergic reaction

Dehydration

Depression

Water intoxication

Ans:

D Feedback: The adverse effects associated with the use of desmopressin include water intoxication (drowsiness, light-headedness, headache, coma, convulsions) related to the shift to water retention and resulting electrolyte imbalance. An allergic reaction, dehydration, or depression would not be associated with these symptoms and desmopressin.

What drug would the nurse expect to administer to an AIDS patient with cachexia?

Bromocriptine (Parlodel)

Somatropin (Saizen)

Desmopressin (DDAVP)

Leuprolide (Lupron)

Ans:

B Feedback:

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571

Indications for somatropin therapy include cachexia, long-term treatment of children with growth failure associated with various deficiencies, girls with Turner’s syndrome, AIDS-related wasting, growth hormone deficiency in adults, and treatment of growth failure in children of small gestational age who do not achieve catch-up growth by 2 years of age. Bromocriptine mesylate is indicated for the treatment of Parkinson’s disease, hyperprolactinemia associated with pituitary adenomas, female infertility associated with hyperprolactinemia, and acromegaly; and short-term treatment of amenorrhea or galactorrhea. Desmopressin is indicated for the treatment of neurogenic diabetes insipidus and hemophilia A. Leuprolide is used as an antineoplastic agent for treatment of specific cancers. 8.

What symptoms will the nurse instruct the patient taking octreotide (Sandostatin) to report to the health care provider?

Abdominal pain

Alteration in consciousness

Changes in vision

Muscle cramps

Ans:

A Feedback: Octreotide and lanreotide have commonly been associated with the development of acute cholecystitis, cholestatic jaundice, biliary tract obstruction, and pancreatitis, which would present with abdominal pain, so patients should be taught to report this symptom. The drug is not associated with alteration in consciousness, changes in vision, or muscle cramps.

The nurse has been caring for a child who has been receiving growth hormone therapy for several years. When the child returns for evaluation following a sudden growth spurt, what nursing diagnosis will the nurse add to the plan of care?

Disturbed body image

Deficient knowledge regarding drug therapy

Imbalanced nutrition: Less than body requirements related to metabolic changes

Risk for disproportionate growth

Ans:

C Feedback: A child who is taking growth hormone may experience sudden growth, which will require increased nutritional intake, so it is important to include nutritional needs in the plan of care. More than likely an

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572

increase in caloric intake and nutrients will be necessary. Most children who are small for their age see growth as a positive thing and not a disturbed body image. After taking the drug for several years, the patient should have received adequate teaching from the nurse ot make deficient knowledge unlikely. The child should not be at risk for, but have a diagnosis of, disproportionate growth as the reason for taking the medication. 10.

The nurse receives an order to administer leuprolide 5 mcg/kg subcutaneously to a child with precocious puberty. The child weighs 30 kg. What is the correct dosage for this child?

150 mcg

6 mcg

68 mcg

330 mcg

Ans:

A Feedback: Multiply the child’s weight times the mg/kg: 30 × 5 = 150 mcg/dose.

11.

The nurse is caring for a patient with infertility related to hyperprolactinemia. What drug would the nurse recognize was ordered to treat this problem?

Bromocriptine mesylate

Somatropin

Leuprolide

Desmopressin

Ans:

A Feedback: Bromocriptine mesylate is indicated for the treatment of female infertility associated with hyperprolactinemia. Somatropin is indicated for the treatment of growth failure, Turners syndrome, AIDS wasting and cachexia, and growth hormone deficiency in adults. Leuprolide is used as antineoplastic agent for treatment of specific cancers and for treatment of endometriosis and precocious puberty that results from hypothalamic activity. Desmopressin is used for the treatment of neurogenic diabetes insipidus, von Willebrand’s disease, hemophilia; and is currently being studied for the treatment of chronic autonomic failure.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

12.

573

A child weighing 14.5 kg has von Willebrand’s disease. How much desmopressin (DDAVP) should be administered?

4.4 mcg

9.6 mcg

10.3 mcg

21.1 mcg

Ans:

A Feedback: The normal dosage of desmopressin used to treat von Willebrand’s disease is 0.3 mcg/kg. Multiply this dosage times the child’s weight: 14.5 kg × 0.3 g = 4.4 g.

13.

What is the purpose of releasing hormones secreted by the hypothalamus?

Stimulating or inhibiting release of hormones from the pituitary

Stimulating organs within the body to secrete hormones

Allowing the secretion of hormones from the hypothalamus

Stimulating other glands to release hormones

Ans:

A Feedback: The hypothalamus uses various hormones or factors to either stimulate or inhibit the release of hormones from the anterior pituitary. These do not stimulate other organs, the hypothalamus, or other glands to release hormones.

14.

A 48-year-old patient with acromegaly is not a candidate for other therapy. What medication, administered subcutaneously, would the nurse caring for the patient expect the physician to order?

Gonadorelin hydrochloride (Factrel)

Octreotide (Sandostatin)

Nafarelin (Synarel)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Gonadorelin acetate (Lutrepulse)

Ans:

574

Feedback: Octreotide (Sandostatin) is a treatment for acromegaly in adults who are not candidates for, or cannot tolerate, other therapy. Gonadorelin hydrochloride, nafarelin, and gonadorelin acetate are not indicated for treating acromegaly. 15.

A patient is brought to the emergency department after a motor vehicle accident. The patient is hemorrhaging, indicating that which hormone is being secreted to restore blood volume?

Growth hormone (GH)

Follicle-stimulating hormone (FSH)

Antidiuretic hormone (ADH)

Adrenocorticotropic hormone (ACTH)

Ans:

C Feedback: ADH possesses antidiuretic, hemostatic, and vasopressor properties. During hemorrhage, GH, FSH and ACTH are not involved in blood volume restoration.

16.

The nurse administers somatropin to a child with impaired growth due to a deficiency of endogenous growth hormone during what period of growth and development?

Before the start of elementary school

Any time before age 18

Before the child reaches 5 feet in height

Before epiphyses close

Ans:

D Feedback: Somatropin is contraindicated in the presence of closed epiphyses so the drug can be given at any time

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575

before closure of the epiphyses. Age and height are not an indication impacting when the drug is given so long as the epiphyses remain open. 17.

The nurse would teach a patient receiving octreotide for acromegaly of the importance of baseline and periodic what?

Ultrasound evaluation of the gallbladder

Magnetic resonance imaging (MRI) of the brain

Serum glucose levels

Complete blood counts

Ans:

A Feedback: Arrange for baseline and periodic ultrasound evaluation of the gallbladder for patients receiving octreotide because common adverse effects of the drug are acute cholecystitis, cholestatic jaundice, biliary tract obstruction, and pancreatitis. A patient taking octreotide does not need baseline and periodic MRIs of the brain, serum glucose levels, or complete blood counts.

18.

The nurse is caring for a patient with neurogenic diabetes insipidus and administers what drug to treat the condition?

Dexamethasone (Decadron)

Desmopressin (DDAVP, Stimate)

Methylprednisolone (Solu-Medrol)

Physostigmine (Antilirium)

Ans:

B Feedback: Synthetic preparations of antidiuretic hormone (ADH), which are purer and have fewer adverse effects, are used to treat diabetes insipidus. Only one ADH preparation is currently available, desmopressin. Dexamethasone, methylprednisolone, and physostigmine would not be indicated for treatment of this disorder.

19.

The nurse transcribes an order for menotropin (Pergonal), which will be administered to have what effect?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Promote development of secondary sex characteristics

Induce ovulation

Promote bone growth

Treat diabetes insipidus

Ans:

576

Feedback: Menotropin (Pergonal) is used as fertility drug to stimulate ovulation and spermatogenesis. Pergonal is not used to promote the development of secondary sex hormones, to promote bone growth, or to treat diabetes insipidus. 20.

The nurse administers desmopressin to treat a patient with diabetes insipidus. Assessment of what laboratory studies would indicate the drug is working?

Increased serum sodium levels

Increased red blood cell count

Decreased urine specific gravity

Reduced urine glucose levels

Ans:

A Feedback: Patients with diabetes insipidus (DI) produce large amounts of dilute urine with a decrease in serum sodium levels. Administering desmopressin would reduce urine output and allow sodium levels to rise. Urine specific gravity would increase as the urine production slows and urine becomes more concentrated. There is no impact on red blood cell production with diabetes insipidus or its treatment. The urine of a patient with DI does not contain glucose.

21.

The nurse would administer desmopressin (DDAVP) cautiously, with careful monitoring, to the patient with what co-morbidity? (Select all that apply.)

Hyponatremia

Asthma

Severe renal dysfunction

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Gastrointestinal (GI) disease

Epilepsy

Ans:

A, B, E

577

Feedback: Caution should be used with any known vascular disease because of its effects on vascular smooth muscle, epilepsy, asthma, and with hyponatremia, which could be exacerbated by the effects of the drug. The drug is contraindicated and should not be used in patients with severe renal dysfunction. GI disease is not a caution or contraindication. 22.

The nurse is caring for a 25-year-old female patient who is receiving chorionic gonadotropin alfa. What would be an appropriate nursing diagnosis for this patient?

Anxiety related to injection of medication

Acute pain related to need for injections

Imbalanced nutrition: More than body requirements

Evaluate effectiveness of the teaching plan

Ans:

B Feedback: Nursing diagnoses related to drug therapy might include acute pain related to need for injections. Not all patients are anxious at the thought of an injection so more information would be needed. The patient is more likely to have reduced nutritional intake because of gastrointestinal (GI) adverse effects. Evaluating the effectiveness of the teaching plan is not a nursing diagnosis.

23.

When providing patient teaching to the family of a 12-year-old child receiving Somatropin, the nurse stresses the need to notify prescriber if what manifestation occurs?

Severe hip or knee pain

Development of a bruise

Severe hypertension

Tachycardia

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

578

A Feedback: The adverse effects that most often occur when using a growth hormone (GH) include the development of antibodies to GH and subsequent signs of inflammation and autoimmune-type reactions, such as swelling and joint pain, and the endocrine reactions of hypothyroidism and insulin resistance. It would not be necessary to notify the physician for development of a bruise. The health care provider should always be notified if a patient develops severe hypertension or tachycardia but this would not be related to administration of somatropin so it would not be included in drug teaching.

24.

What medication would the nurse expect the physician to prescribe as palliative treatment for advanced prostate cancer?

Histrelin (Vantas)

Ganirelix (Antagon)

Nafarelin (Synarel)

Somatropin (Nutropin)

Ans:

A Feedback: Histrelin (Vantas) is used to provide palliative treatment for advanced prostate cancer. Nafarelin (Synarel) is used for treatment of endometriosis and precocious puberty; Ganirelix (Antagon) is used for inhibition of premature luteinizing hormone surge in women undergoing controlled ovarian stimulation as part of a fertility program; Somatropin (Nutropin) is used for treatment of children with growth failure due to lack of growth hormone or to chronic renal failure.

25.

A 4-year-old is tested and found to have deficient growth hormone (GH). What does this condition cause?

Gigantism

Acromegaly

Syndrome of inappropriate antidiuretic hormone (SIADH)

Dwarfism

Ans:

D Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

GH deficiency in children results in short stature (dwarfism). Excess production of GH results in gigantism and acromegaly. SIADH is caused by excessive production of antidiuretic hormone. 26.

What hormone does the posterior pituitary gland store and release?

Antidiuretic hormone (ADH)

Follicle-stimulating hormone (FSH)

Growth hormone (GH)

Thyroid stimulating hormone (TSH)

Ans:

A Feedback: The posterior pituitary stores two hormones produced in the hypothalamus: ADH, also known as vasopressin and oxytocin. The posterior pituitary does not store FSH, GH, or TSH.

27.

For what purposes might the nurse administer a hypothalamic hormone? (Select all that apply.)

Diagnostic testing

Synthesis of growth factors

Prevent aging

Treating some forms of cancer

Adjuncts in fertility programs

Ans:

A, D, E Feedback: The hypothalamic hormones are not all available for pharmacological purposes. Those available are used mostly for diagnostic testing, for treating some forms of cancer, or as adjunctive therapies in fertility programs. They would not be used to prevent aging or for the synthesis of growth factor.

28.

The nurse is caring for a patient diagnosed with syndrome of inappropriate antidiuretic hormone (SIADH) which the nurse recognizes is caused by what?

579

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Excessive secretion of antidiuretic hormone (ADH)

Insufficient secretion of ADH

Excessive secretion of androgens

Insufficient secretion of antidepressants

Ans:

580

Feedback: SIADH occurs with excessive secretion of ADH. Insufficient secretion of ADH causes diabetes insipidus. ADH is not related to androgenic or antidepressant actions. 29.

The nurse explains the role of the posterior pituitary gland is to do what?

It synthesizes different hormones.

It makes two hormones.

It stores hormones.

It controls most of the metabolic functions of the body.

Ans:

C Feedback: The posterior pituitary stores two hormones produced in the hypothalamus: antidiuretic hormone (ADH, also known as vasopressin) and oxytocin. The posterior pituitary is anatomically an extension of the hypothalamus and is composed mainly of nerve fibers. Although it does not manufacture any hormones itself, it stores and releases hormones synthesized in the hypothalamus. The hypothalamus of the brain and the pituitary gland interact together to control most metabolic functions of the body and to maintain homeostasis.

30.

The nurse is caring for a patient receiving tolvaptan and digoxin. What drugdrug interaction will the nurse assess for when reviewing this patient’s laboratory results?

Elevated serum sodium levels

Reduced digoxin levels

Elevated serum potassium levels

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Tolvaptan toxicity

Ans:

581

Feedback: Tolvaptan should be used with care with digoxin, which could cause hyperkalemia, so the nurse must carefully monitor serum potassium levels. The combination of drugs would not cause reduced digoxin levels or tolvaptan toxicity. The indication for administering tolvaptan would be to treat hyponatremia, so an elevation in serum sodium levels to normal range would be an indication the drug was working but would not be a result of a drug-drug interaction. 31.

The nurse is caring for a patient who has been receiving long-term growth hormone treatment to stimulate growth. What diagnostic testing would the nurse expect to see ordered as a standard part of the treatment plan? (Select all that apply.)

Blood sugar level

Serum electrolytes

X-ray of the long-bones

Nasal examination

Bone density studies

Ans:

A, B, C Feedback: Periodic radiography of the long bones, as well as monitoring of blood sugar levels and electrolytes, should be a standard part of the treatment plan for children who receive any of the hypothalamic or pituitary agents. There would be no indication for nasal assessment because growth hormone is not administered nasally. Bone density would not be impacted by these drugs.

32.

What is the nurse’s priority assessment when administering hypothalamic or pituitary agents to older adults?

Hydration and nutrition

Balance and fall risk

Cognitive function

Urinary incontinence

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

582

A Feedback: Older adults may be more susceptible to the imbalances associated with alterations in the endocrine system. They should be evaluated periodically during treatment for hydration and nutrition, as well as for electrolyte balance. These drugs would not be expected to impact balance, cognitive function, or to cause incontinence so these would not be the priority assessment.

33.

The mother of a child awaiting a renal transplant asks the nurse whether growth hormone could be effective for her child. What is the nurse’s best response?

Growth hormone is only used to treat short stature in children who do not produce enough growth hormone naturally.

Growth hormone has been used successfully in children with renal failure but there is a lot to consider and you should talk to the doctor about it.

Administration of growth hormone requires frequent injections so it would be cruel for a child with existing medical problems.

You do not want to use growth hormone if you do not have to. What would make you even think of something like that?

Ans:

B Feedback: Growth hormone therapy is used with children with renal failure but the decision carries risks as well as benefits so it is important for the mother to talk to the child’s primary physician and nephrologist to get recommendations for its safety. It is not just used in children with inadequate growth hormone secretion. It is never correct for the nurse to castigate the mother for a question so telling her it would be cruel or that she should not use it if it is not essential would destroy the patient/nurse relationship.

34.

The nurse is asked to explain how to administer somatropin (Saizen) to the mother of a 6-year-old. How would the nurse explain how this drug is administered?

It requires only a very small needle and doesn’t hurt much at all.

There will no longer be any need to rotate sites because it uses a needleless system.

This system will be used until your son gets older and is more tolerant of needles.

This delivers a fine mist through the skin without needles and far less discomfort.

Ans:

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583

Feedback: Saizen uses the cool.click delivery system, which is a neon-colored, needle-free system that delivers the drug through the skin using a fine mist. Tests have shown a bioequivalency of this method with standard injection techniques, and the young patients who must use this drug are much less resistant to the dosing. There are no needles but site of injection still require rotation to avoid skin damage. The child does not have to go back to a needle system when he gets older.

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584

Chapter 36 - Adrenocortical Agents

The nurse administers fludrocortisone (Florinef) to a patient diagnosed with salt-losing adrenogenital syndrome and then assesses for what therapeutic action?

Development of hypokalemia and elevated serum glucose level

An increase in sodium and water reabsorption and potassium excretion

Headache, edema, weakness, arrhythmias, and hypertension

Sodium and water depletion along with potassium retention

Ans:

B Feedback: Fludrocortisone’s therapeutic effects include an increase in sodium and water reabsorption with potassium excretion. Headache, edema, weakness, arrhythmias, and hypertension are adverse, and not therapeutic, effects. Hypokalemia is possible but glucose levels should not be impacted.

When developing a plan of care for the patient receiving a glucocorticoid, what nursing diagnosis would be of highest priority?

Deficient fluid volume related to water retention

Risk for injury related to muscle weakness

Imbalanced nutrition: less than body requirements

Risk for infection related to immunosuppression

Ans:

D Feedback: Risk for infection related to immunosuppression would be the appropriate nursing diagnosis because steroids suppress the immune system, which puts the patient at risk for infection. Nutritional imbalance is more likely to be more than body requirements than less than body requirements. Excess fluid volume is more appropriate than deficient fluid volume. Glucocorticoids are not associated with muscle weakness.

What glucocorticoids could the nurse only administer orally?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Cortisone (Cortone Acetate)

Hydrocortisone (Cortef)

Prednisone (Deltasone)

Triamcinolone (Aristocort)

Ans:

585

Feedback: Prednisone is available in oral form only and is used for replacement therapy for adrenal insufficiency, and treatment of allergic and inflammatory disorders. Cortisone can be administered orally or intramuscularly and is used for replacement therapy. Hydrocortisone, used for replacement therapy, is administered by the oral, IV, intramuscular, topical, ophthalmic, rectal, and intra-articular routes. Triamcinolone is administered by the oral, intramuscular, inhalant, intra-articular, and topical routes and is used for treatment of allergic and inflammatory disorders and in the management of asthma. 4.

The mother asks the nurse for a steroid cream to put on her infant’s diaper rash. What teaching will the nurse provide the mother? (Select all that apply.)

Topical corticosteroids are very effective treatment for diaper rash.

Topical corticosteroid application should not be occluded with a diaper.

Topical corticosteroids should not be applied to open lesions.

Use of topical corticosteroids should be limited in children.

Topical corticosteroids should be applied in a thick coat to the rash.

Ans:

B, C, D Feedback: Topical use of corticosteroids should be limited in children because their body surface area is comparatively large and the amount of the drug absorbed in relation to weight is greater than in an adult. When the medication is used in children, it should be applied sparingly and the area should not be occluded with a diaper. The nurse should not make a judgment nor should he or she allow a patient or family member to dictate a treatment just because he or she wants it. More effective treatments for diaper rash than corticosteroids are available.

An older adult patient taking high-dose corticosteroids to treat arthritis requests a pneumonia vaccine. What is the nurse’s best response?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Pneumonia vaccines are only given if you are at risk for serious pulmonary problems.

Live virus vaccines cannot be given to people who are significantly immunosuppressed.

Patients taking corticosteroids are well protected from viruses and do not need vaccines.

Corticosteroids interact with the pneumococcal vaccine to create serious adverse effects.

Ans:

586

Feedback: Corticosteroids block the inflammatory response and are very helpful in conditions such as arthritis. However, they also block the immune response, making a person immunosuppressed. The vaccine would not be given to this patient because of the increased risk for infection. An older adult would be considered at high risk for pneumonia so getting the vaccine would be encouraged if not for taking corticosteroids. Corticosteroids do not protect against viruses. The vaccine is contraindicated because of risk for infection and not because of a potential drugdrug interaction. 6.

A patient who is steroid dependent due to adrenocortical insufficiency calls the clinic and is very upset, telling the nurse of the extreme stress he or she is experiencing right now. What does the nurse expect the health care provider will order concerning his or her medication?

The dosage may continue as ordered.

The medication may be discontinued until stress declines.

The dosage of the medication may be increased.

The dosage of the medication may be decreased.

Ans:

C Feedback: The patient’s body will initiate a stress reaction. Normally, activation of the stress reaction can cause release of adrenocorticotropic hormone (ACTH) and secretion of the adrenocortical hormones. A patient with adrenocortical insufficiency may not be able to supplement the increased need for ACTH. The stress reaction may block the immune and inflammatory systems, making the body more susceptible to pathogens. Therefore, an increase in medication may be necessary to prevent further adrenal insufficiency and to meet the increased demands for corticosteroids in the body under stress.

A nurse is providing patient education to a patient who has had corticosteroids prescribed. What drug will the nurse teach the patient to avoid while taking the corticosteroids? Aspirin

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Dimenhydrinate (Dramamine)

Ibuprofen (Advil)

Famotidine (Pepcid)

Ans:

587

Feedback: Serum levels and effectiveness may decrease if corticosteroids are combined with salicylates. Dimenhydrinate, ibuprofen, and famotidine have not been found to produce drugdrug interaction. 8.

The nurse is caring for a patient with a heightened stress response following a fearful experience. When assessing this patient, what findings will the nurse attribute to this response? (Select all that apply.)

Elevated serum blood glucose

Reduced inflammatory response

Heightened immune response

Increased blood volume

Extreme hunger

Ans:

A, B, D Feedback: The stress response causes an increase in blood volume and a release of glucose for energy. It also slows the rate of protein production and blocks the activities of the inflammatory and immune systems, which reserves energy. This patient is unlikely to be hungry.

The nurse is providing patient education to a patient taking a glucocorticoid and advises the patient to take his or her medication at what time of the day?

At bedtime

With the noon meal

At 3:00 PM

Immediately on awakening in the morning

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

588

D Feedback: Glucocorticoids should be taken immediately on awaking in the morning to mimic the normal diurnal pattern. The peak levels of cortisol usually come between 6:00 and 8:00 AM. The levels then fall off slowly and reach a low in the late evening with the lowest levels around midnight. For those patients who work night shifts, the schedule would be changed to accommodate their sleep pattern. Waiting until later in the day could result in sleeplessness.

10.

An 8-year-old with asthma has been prescribed triamcinolone (Aristocort). What dosage of medication would the nurse appropriately deliver?

One inhalation per day

One inhalation b.i.d.

Two inhalations every 3 hours

Two inhalations t.i.d.

Ans:

D Feedback: Pediatric dosage is individualized based on severity and response. However, children between 6 and 12 years of age are prescribed one to two inhalations t.i.d. or q.i.d. The other options are incorrect based on the recommended dosage.

11.

The nurse, caring for a patient experiencing stress, knows that activation of the stress reaction will cause the release of what?

Glucose

Aldosterone

Adrenocorticotropic hormone (ACTH)

Oxytocin

Ans:

C Feedback:

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589

Activation of the stress reaction through the sympathetic nervous system bypasses the usual diurnal rhythm and causes release of ACTH and secretion of the adrenocortical hormonesan important aspect of the stress (fight-or-flight) response. Glucose will eventually be released to supply energy, but first ACTH and adrenocortical hormones must stimulate this response. Aldosterone can be released without ACTH stimulation when the blood surrounding the adrenal gland is high in potassium. This is a direct stimulus for aldosterone release. Oxytocin is released to promote the let-down reflex in the lactating woman and to stimulate uterine contractions but is not involved in the stress response. 12.

The nurse is developing a plan of care for an 84-year-old diabetic patient who is receiving oral hydrocortisone 40 mg daily for treatment of arthritis. What is this patient’s priority nursing intervention?

Increasing sodium in diet

Restricting protein in diet

Increasing fluids to 2,000 mL/d

Monitoring blood glucose levels frequently

Ans:

D Feedback: Caution should be used in patients with diabetes because the glucose-elevating effects disrupt glucose control. More frequent blood sugar monitoring is this patient’s priority intervention. Sodium, protein, and fluid intake do not need to be altered.

13.

A patient with adrenal insufficiency has been admitted to the intensive care unit in adrenal crisis. What assessment findings support this diagnosis? (Select all that apply.)

Physiological exhaustion

Hypertension

Fluid shift

Shock

Septicemia

Ans:

A, C, D Feedback: Symptoms of adrenal crisis include physiological exhaustion, hypotension, fluid shift, shock, and even

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590

death. Hypotension rather than hypertension would be expected. Septicemia is a possible cause of adrenal crisis, not a symptom. 14.

The nurse is providing discharge teaching for a patient prescribed prednisone to be taken on alternate days. The patient asks why he cannot take half a pill every day. What is the nurse’s best response?

To eliminate adverse side effects

To prolong therapeutic effects

To prevent steroid tolerance

To decrease adrenal suppression

Ans:

D Feedback: Alternate-day maintenance therapy is used with short-acting drugs whenever possible to decrease the risk of adrenal suppression. Alternate-day therapy would not eliminate adverse effects or prolong therapeutic effects. There is no such thing as steroid tolerance.

15.

The clinic nurse receives a call from the mother of a 4-year-old child on long-term corticosteroid therapy saying the child woke up with a cold and is pulling on his ear. What instructions will the nurse provide?

Encourage fluids, monitor his temperature, and he will be better in 3 days.

Take him to the emergency room (ER) immediately.

Bring him to the clinic to be seen today.

Hang up and call 911.

Ans:

C Feedback: Children receiving long-term therapy should be protected from exposure to infection. Special precautions should be instituted to avoid injury. If injuries or infections do occur, the child should be seen by a primary care provider as soon as possible. There is no need to treat this as an emergency so the mother need not rush the child to the ER or call 911, but she should be encouraged to have the child seen today at the clinic. It would not be appropriate to give home care instructions until he has been seen at the clinic.

16.

When doing a shift assessment on the patient, the nurse would report what symptoms as a possible

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591

adverse effect of intranasal methylprednisolone? (Select all that apply.) A)

Headache

Impaired wound healing

Epistaxis

Hypotension

Nasal irritation

Ans:

A, B, C, D, E Feedback: Intranasal administration of hydrocortisone can result in headache, nausea, nasal irritation, fungal infections, epistaxis, rebound congestion, perforation of the nasal septum, anosmia, and urticaria. Systemically administered hydrocortisone has many possible adverse effects including impaired wound healing and hypotension, but these would not be likely to be associated with intranasal administration of hydrocortisone.

17.

The nurse is providing dietary teaching to the patient on long-term mineralocorticoid therapy and includes what teaching point?

Decreasing sodium

Increasing calcium

Increasing vitamin D

Increasing potassium

Ans:

D Feedback: Mineralocorticoids cause sodium and water retention and potassium excretion. These patients benefit from a diet with increased potassium. They would not decrease sodium intake as the drug is often administered for the purpose of increasing serum sodium levels. Calcium and vitamin D intake would be the same for this patient as any other patient of similar age and gender.

18. A)

The nurse anticipates an order for a glucocorticoid when caring for a patient with what condition? Hypoglycemia

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Appendicitis

Arthritis

Septicemia

Ans:

592

Feedback: Glucocorticoids are indicated for the short-term treatment of many inflammatory disorders, to relieve discomfort, and to give the body a chance to heal from the effects of inflammation. They block the actions of arachidonic acid, which leads to a decrease in the formation of prostaglandins and leukotrienes. Without these chemicals, the normal inflammatory reaction is blocked. Hypoglycemia would more safely be treated with glucose. Appendicitis and septicemia are infections that would contraindicate the use of glucocorticoids because of the immunosuppressant effects of the drugs. 19.

The 2-year-old patient with asthma is placed on a short-term dose of prednisone. What important instruction will the nurse provide the patient about this drug?

Increase intake of carbohydrates.

The child may receive immunizations while on this drug.

Do not stop this medication suddenly; you will have to taper dosage gradually.

Reduce intake of protein until drug therapy is complete.

Ans:

C Feedback: Prednisone is usually ordered for short-term use with tapering dosage. It is important to instruct the parent to taper doses and to not just stop the drug suddenly when discontinuing from high doses so as to give the adrenal glands a chance to recover and produce adrenocorticoids. This is the priority instruction. Parents should also be told to wait to get the child immunizations until after drug therapy is completed. There is no need to alter carbohydrate or protein intake.

20.

When caring for a patient receiving long-term therapy with corticosteroids, the nurse would plan care incorporating interventions aimed at preventing what?

Allergies

Inflammation

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Infection

Anemia

Ans:

593

Feedback: When planning care for a patient taking long-term corticosteroid therapy, the nurse needs to incorporate interventions aimed at reducing risk of infection because the patient’s immune system will be suppressed, which places the patient at increased risk. The nurse would not try to prevent the antiinflammatory effects of the drug. The drug is not associated with causing allergies or anemia. 21.

A 66-year-old female patient is on long-term oral glucocorticoid therapy to treat chronic obstructive pulmonary disease. When providing drug teaching, the nurse will inform this patient that she is at particular risk for what?

Hyponatremia

Spontaneous fractures

Respiratory depression

Ineffective temperature regulation

Ans:

B Feedback: Only spontaneous fractures are considered an adverse effect of glucocorticoids; this patient would be at increased risk because her age and gender put her at higher risk for osteoporosis, which also has the adverse effect of spontaneous fractures. Long-term glucocorticoid therapy is not associated with hyponatremia, respiratory depression, or ineffective temperature regulation.

22.

The nurse provides teaching to a patient with chronic obstructive pulmonary disease who has been prescribed budesonide (Pulmicort) two puffs and fluticasone (Flovent) three puffs t.i.d. The nurse evaluates that further teaching is needed when the patient makes what statement?

Take all five puffs as quickly as possible.

Replace the inhalers before they run out.

Rinse the mouth after taking the medication.

Continue medication even when symptoms start to subside.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

594

A Feedback: The nurse needs to review how to administer the drug via inhalation because the patient must hold the medication in the airways as long as possible before exhaling and should not try to rush the treatment. The other statements are correct and would not require clarification.

23.

The home health nurse provides patient teaching to his or her patient who is taking oral prednisolone. The nurse provides what instruction to reduce the occurrence of nausea?

Take with a meal.

Take 1 hour before meals.

Take before bedtime.

Split the dose into two equal doses.

Ans:

A Feedback: Steroids, taken on an empty stomach, would exacerbate the nausea. If the patient takes only one dose per day, it should be taken immediately after breakfast. If spaced throughout the day, eating something before taking the pill will reduce risk of nausea. Timing is dictated by frequency of administration, and if only taken once daily, the medication should be taken in the morning (so bedtime is inappropriate). Splitting the dose would decrease effectiveness and would be inappropriate for the nurse to suggest because it is outside the scope of nursing practice. Taking the medication before meals would mean it was being taken on an empty stomach.

24.

What would be important for the nurse to teach the parents of a pediatric patient about the use of topical corticosteroids?

Apply the medication sparingly.

Apply directly to open lesions.

After applying cover with a bandage.

Reapply as often as needed to keep the rash coated with the medication.

Ans:

A Feedback:

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595

Topical use of corticosteroids should be limited in children, because their body surface area is comparatively large, so that the amount of the drug absorbed in relation to weight is greater than in an adult. Apply sparingly and do not use in the presence of open lesions. Do not occlude treated areas with dressings or diapers, which may increase the risk of systemic absorption. 25.

The nurse is teaching the patient who will require long-term corticosteroid therapy how to reduce the risk of infection. What suggestions will the nurse include?

Avoid large crowds of people tightly packed together.

Avoid working in areas with other people.

Avoid exercising to reduce risk of injury.

Avoid touching other people who may carry germs.

Ans:

A Feedback: With long-term therapy, the importance of avoiding exposure to infectioncrowded areas, people with colds or the flu, activities associated with injuryshould be stressed. If an injury or infection should occur, the patient should be encouraged to seek medical care. These patients do not need to avoid work, exercise, or touching others but they should use good hand hygiene to avoid infection from these sources.

26.

The nurse is caring for an African American patient who received a kidney transplant and receives methylprednisolone for immunosuppression. What is the nurse’s priority assessment specific to this patient?

Assessing capillary refill time

Assessing cardiac rhythm

Assessing white blood cell count

Assessing blood glucose levels

Ans:

D Feedback: African Americans develop increased toxicity to the corticosteroid methylprednisoloneparticularly when it is used for immunosuppression after renal transplantation. This toxicity can include severe steroid-induced diabetes mellitus. A priority intervention with this patient is monitoring blood glucose levels. Assessment of capillary refill time and cardiac rhythm would not be indicated by the data supplied about this patient. White blood cell counts should be monitored on any patient receiving long-

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596

term corticosteroids but is not specific to this patient. 27.

The nurse is caring for a patient who is diagnosed with protein-deficient malnutrition. Why would an order to administer androgens to this patient be appropriate?

Androgens reduce the body’s requirement for protein.

Androgens increase the body’s absorption of protein from the bowel.

Androgens stimulate protein production and decrease protein breakdown.

Androgens reduce carbohydrate metabolism and promote lipid absorption.

Ans:

C Feedback: Androgens are a form of the male sex hormone called testosterone. They affect electrolytes, stimulate protein production, and decrease protein breakdown, which will help to reverse the patient’s protein malnutrition in addition to a high-protein diet. They do not reduce the body’s need for protein, increase protein absorption from the bowel, or impact carbohydrate and lipid metabolism.

28.

The nurse is caring for a patient who works night shift from 2200 (10 pm) to 0600 (6 am) and normally sleeps from 0800 (8 am) until 1600 (4 pm) each day. The nurse would teach this patient to take his or her corticosteroid at what time of the day?

06:00 (6 am)

08:00 (8 am)

16:00 (4 pm)

22:00 (10 pm)

Ans:

C Feedback: If a person works all night and goes to bed at 8 am, arising at 4 pm to carry on the day’s activities before going to work at 10 pm, the hypothalamus will release corticotropin-releasing hormone at about 4 pm in accordance with the new sleepwake cycle. It usually takes 2 or 3 days for the hypothalamus to readjust. A patient on this schedule who is taking replacement corticosteroids would then need to take them at 4 pm, or on arising. All other options would not be optimal.

29.

For what reason might a nurse administer androgen injections to a 9-year-old boy?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ovarian atrophy

Dwarfism

Acromegaly

Hypogonadism

Ans:

597

Feedback: Androgens are used pharmacologically to treat hypogonadism or to increase protein growth and red blood cell production. Androgens are not used in a male to treat ovarian atrophy. Androgens are not used to treat dwarfism or acromegaly. 30.

A patient is taking low-dose corticosteroids on a long-term basis for chronic obstructive pulmonary disease. The nurse assesses this patient knowing prolonged use of corticosteroids puts the patient at risk for what?

Adrenal storm

Adrenal atrophy

Stunted growth

Hypothalamic insufficiency

Ans:

B Feedback: Prolonged use of corticosteroids suppresses the normal hypothalamicpituitary axis and leads to adrenal atrophy from lack of stimulation. The other options are all distracters for this question with no connection to long-term use of corticosteroids.

31.

The nurse administers prednisone orally at 8 am. When would the nurse expect the drug to reach peak effect?

9 to 10 am

12 to 1 pm

8:30 to 9:00 am

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

4 to 6 pm

Ans:

598

Feedback: Prednisone’s peak effect occurs 1 to 2 hours after administering the drug. If given at 8 am, the expected peak would occur between 9 and 10 am. 32.

Nursing care for the postoperative patient requiring long-term glucocorticoid therapy will be directed at overcoming what adverse effect of the drug?

Poor wound healing

Inflammation

Autoimmune response

Lack of mobility

Ans:

A Feedback: Patients taking long-term glucocorticoid therapy will have impaired wound healing so nursing care is directed toward promoting healing. The drug has an anti-inflammatory effect so that would not need to be overcome. There is no autoimmune response or lack of mobility so these do not have to be overcome.

33.

The nurse is teaching a class for his or her peers about glucocorticoids. What will the nurse say is initially blocked, resulting in the drug’s anti-inflammatory action?

Arachidonic acid

Phagocytes

Lymphocytes

Antibodies

Ans:

A Feedback:

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599

Glucocorticoids block the actions of arachidonic acid, which leads to a decrease in the formation of prostaglandins and leukotrienes. They also impair the ability of phagocytes to leave the bloodstream and move to injured tissues; they inhibit the ability of lymphocytes to act within the immune system, including blocking the production of antibodies. Blocking arachidonic acid is, however, the initial action. 34.

What hormones does the adrenal medulla secrete?

Renin and erythropoietin

Norepinephrine and epinephrine

Epinephrine and dopamine

Dopamine and serotonin

Ans:

B Feedback: The adrenal medulla is actually part of the sympathetic nervous system (SNS). It is a ganglion of neurons that releases the neurotransmitters norepinephrine and epinephrine into circulation when the SNS is stimulated.

35.

The adrenal cortex responds to adrenocorticotropic hormone (ACTH), which responds to corticotropinreleasing hormone (CRH) from the hypothalamus in a daily pattern called what?

Pituitary rhythm

hypothalamicpituitary axis

Diurnal rhythm

Circadian rhythm

Ans:

C Feedback: The adrenal cortex responds to ACTH released from the anterior pituitary. ACTH, in turn, responds to CRH released from the hypothalamus. This happens regularly during a normal day in what is called diurnal rhythm. Pituitary rhythm is a distracter; the term does not exist. The hypothalamicpituitary axis involves the interaction between the two glands. Circadian rhythm involves when people prefer to be most active, such as people who say they are morning people.

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600

Chapter 37 - Thyroid and Parathyroid Agents

The nurse is teaching the patient, newly diagnosed with Graves’s disease, about the normal functioning of the thyroid gland. What hormone will the nurse tell the patient controls production and release of thyroid hormones?

Thyrotropin-releasing hormone (TRH)

Thyroid-stimulating hormone (TSH)

Tetraiodothyronine

Triiodothyronine

Ans:

B Feedback: Thyroid hormone production and release are regulated by the anterior pituitary hormone called thyroidstimulating hormone (TSH). The secretion of TSH is regulated by thyrotropin-releasing hormone (TRH), a hypothalamic regulating factor. Tetraiodothyronine and triiodothyronine are thyroid hormones produced by the thyroid gland because of TSH stimulation.

A child is diagnosed with hypothyroidism. The nurse anticipates an order for the drug of choice when treating children, which is what?

Liothyronine (Cytomel)

Liotrix (Thyrolar)

Levothyroxine (Synthroid)

Methimazole (Tapazole)

Ans:

C Feedback: Levothyroxine is the drug of choice in children because of its predictable bioavailability and reliability. Liothyronine and liotrix tend to have more adverse effects and, although they can be used in children, are not the drugs of choice. Methimazole is an antithyroid drug and is used to treat hyperthyroidism.

A patient is at risk for thrombosis formation and is taking an oral anticoagulant. The patient has been newly diagnosed with hypothyroidism and placed on levothyroxine (Synthroid). What will the nurse

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601

monitor the patient for? A)

Tachycardia

Elevated body temperature

Increased time spent sleeping

Increased bruising and bleeding

Ans:

D Feedback: The effectiveness of an oral anticoagulant is increased if it is used in combination with a thyroid hormone. This may lead to increased bleeding and the need to decrease the dosage of the oral anticoagulant. Tachycardia would be found with hyperthyroidism and the effect of levothyroxine is not increased with the drug combination. Increased time spent sleeping would indicate lowering of thyroid function and the treatment should increase thyroid function. Increased body temperature is associated with hyperthyroidism.

The nurse is providing patient teaching regarding the administration of levothyroxine (Synthroid). What is the nurse’s priority teaching point?

Take the medication after breakfast.

Take the medication with a full glass of water.

Remain in the upright position for 30 minutes after administering.

Take the medication before going to bed at night.

Ans:

B Feedback: The patient should be instructed to take the medication with a full glass of water to help prevent difficulty swallowing and esophageal atresia. The medication should be taken on an empty stomach before breakfast. There is no need to maintain an upright position. The medication should be taken as a single daily dose before breakfast each day to ensure consistent therapeutic levels.

The nurse instructs the patient with a new prescription to treat hyperthyroidism and includes the importance of regular lab studies to monitor for bone marrow suppression, which can be an adverse effect of this drug. What drug is the nurse teaching the patient about? Methimazole (Tapazole)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Propylthiouracil (PTU)

Sodium iodide I131 (Generic)

Potassium iodide (Thyro-Block)

Ans:

602

Feedback: Methimazole is associated with bone marrow suppression, so the patient using this drug must have frequent blood tests to monitor for this effect. Propylthiouracil is associated with GI effects. The most common adverse effect of sodium iodide I131 and potassium iodide is hypothyroidism. Other effects of these two drugs include metallic taste and burning in the mouth, sore teeth and gums, diarrhea, cold symptoms, stomach upset, stained teeth, rash, and the development of goiter. 6.

A patient is seen in the clinic and diagnosed with hyperthyroidism. Potassium iodide is prescribed. The nurse reviews the patient’s medical record before administering the drug. What assessment finding would cause the nurse to alter the plan of care?

A daily walk of 3 miles a day

A low fat, low sodium diet

A bowel movement every 2 to 3 days

Digoxin 0.125 mg daily

Ans:

D Feedback: Potassium iodide will cause the patient to move from hyperthyroidism to hypothyroidism, thus altering the patient’s metabolism. Digoxin has a small margin of safety that could be altered by a change in thyroid function. The patient will need to be monitored carefully for an alteration in digoxin effects that may include an increased heart rate, arrhythmia, or reduced cardiac output. A daily walk of 3 miles, a low fat, low sodium diet, and a bowel movement every 2 to 3 days are important for maintenance of a healthy lifestyle but would not alter the plan of care.

A patient with Paget’s disease calls the clinic and tells the nurse that she is experiencing flushing of the face and hands and a rash. The patient states that she is taking calcitonin, salmon (Calcimar) for her Paget’s disease. What is the nurse’s best response? We expected this to happen. Just ignore it and please do not worry about it.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

You will need to see the doctor immediately. Come in as soon as possible.

This is a common adverse effect of your medication that will lessen with time.

This is a serious adverse effect. Stop taking the drug and see the doctor today.

Ans:

603

Feedback: The most common adverse effects seen with this drug include flushing of the face and hands, rash, nausea and vomiting, urinary frequency, and local inflammation at the site of injection. Many of these adverse effects lessen with time, the duration varying with each individual patient. Although it is an expected adverse effect, the nurse needs to provide more teaching instead of simply telling the patient to ignore it and to not worry. The patient does not need to be seen and this is not a serious adverse effect. 8.

The nurse is teaching the patient with a new prescription for ibandronate (Boniva) how to take the medication. Which instruction provided by the nurse is correct?

Take 150 mg once a month on the same day of the month.

Take 70 mg once a week on the same day of the week.

Take 400 mg/d.

Take 3 mg once per month on the same day of the month.

Ans:

A Feedback: Ibandronate can be taken daily, monthly, or every 3 months. Taking 150 mg orally once a month on the same day of the month would be correct. If given IV every 3 months, the dose is 3 mg and if taken daily, the dose is 2.5 mg/d. All other options are incorrect.

The nurse admits an elderly patient in thyroid crisis for whom surgery is not an option. What antithyroid drug would the nurse expect will be ordered?

Methimazole (Tapazole)

Radioactive iodine (Generic)

Propylthiouracil (PTU)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Potassium iodide (Thyro-Block)

Ans:

604

Feedback: If antithyroid agents are needed in the older adult patient, sodium iodide I131 may be the drug of choice because it has fewer adverse effects than the other agents. The use of sodium iodide is reserved for those patients who are not candidates for surgery, women who cannot become pregnant, and elderly patients with such severe, complicating conditions that immediate thyroid destruction is needed. Radioactive iodine targets the thyroid cells and destroys them without many adverse effects. Methimazole and propylthiouracil are antithyroid drugs but have cardiovascular adverse effects that might be unacceptable in an elderly patient who is not a candidate for surgery. Effects of potassium iodide are short-lived and may precipitate further thyroid enlargement and dysfunction so they would not be used in a patient who is not a candidate for surgery because they would not provoke long-term effects. 10.

The nurse is providing care for a man diagnosed with osteoporosis. What drug will the nurse administer that is the only drug approved for treatment in men?

Etidronate (Didronel)

Pamidronate (Aredia)

Tiludronate (Skelid)

Alendronate (Fosamax)

Ans:

D Feedback: Alendronate is the only bisphosphonate that has been approved for the treatment of osteoporosis in men. Etidronate is used to treat Paget’s disease, postmenopausal osteoporosis, and heterotopic ossification. Pamidronate is used to treat Paget’s disease, postmenopausal osteoporosis in women, hypercalcemia of malignancy, and osteolytic bone lesions in cancer patients. Tiludronate is used to treat Paget’s disease that is not responsive to other treatment.

11.

What assessment findings would the nurse expect to see in a patient who overdosed on levothyroxine (Synthroid)?

Nervousness, tachycardia, tremors

Somnolence, bradycardia, paresthesia

Hyperglycemia, hypertension, edema

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Buffalo hump, constipation, sodium loss

Ans:

605

Feedback: More pronounced adverse effects of levothyroxine would be seen including tremors, headache, nervousness, palpitations, tachycardia, allergic skin reactions, diarrhea, nausea, vomiting. Somnolence, bradycardia, and paresthesia would be more likely with insufficient drug intake, which would cause hypothyroidism and other symptoms. Hyperglycemia, edema, buffalo hump, constipation, or sodium loss would not be associated with excess thyroid hormone. 12.

After administering propylthiouracil (PTU), what effect would the nurse anticipate the drug will have in the patient’s body?

To destroy part of the thyroid gland

To inhibit production of thyroid hormone in the thyroid gland

To suppress the anterior pituitary gland’s secretion of thyroid-stimulating hormone (TSH)

To suppress the hypothalamus’s production of thyrotropin-releasing hormone (TRH)

Ans:

B Feedback: PTU is a thioamide that acts by lowering thyroid hormone levels by preventing the formation of thyroid hormone in the thyroid cells, which lowers the serum levels of thyroid hormone. They also partially inhibit the conversion of thyroxine to triiodothyronine at the cellular level. Iodine solutions oversaturate thyroid cells and top production of thyroid hormone. Radioactive iodine destroys part of the thyroid gland. PTU does not impact production or secretion of TSH or TRH.

13.

The nurse provides teaching regarding levothyroxine to a 55-year-old patient diagnosed with Hashimoto’s disease. What statement made by the patient does the nurse interpret to mean that the drug teaching had been understood?

I can take this medication at any time of day.

I should take this medication on an empty stomach in the morning.

I may take this with a sip of water in the morning.

If I feel nauseated, I may take this drug with an antacid.

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

606

Feedback: Adults who require thyroid replacement therapy need to understand that this will be a lifelong need. An established routine of taking the tablet first thing in the morning may help the patient comply with the drug regimen. The drug should be taken on an empty stomach with a full glass of water. Antacids would slow or prevent absorption of the hormone replacement, so the patient should be corrected. 14.

The nurse, developing a care plan for a patient diagnosed with hypothyroidism, creates what appropriate nursing diagnosis?

Imbalanced nutrition: Less than body requirements

Ineffective thermoregulation: Excess or ineffective airway clearance

Decreased cardiac output

Ineffective airway clearance

Ans:

C Feedback: Decreased cardiac output is related to hypothyroidism. Hyperthyroidism results in increased caloric needs and the nursing diagnosis of Imbalanced nutrition: Less than body requirements. Thyroid dysfunction would not normally result in Ineffective thermoregulation: Excess or ineffective airway clearance.

15.

The nurse is caring for a 5-year-old child diagnosed with hypothyroidism whose mother voices skepticism about giving the child drugs. In explaining the need for medication, what will the nurse tell this mother could result if her daughter’s condition remains untreated so she can make an informed decision?

Mental retardation

Renal dysfunction

Immune deficiency

Paralytic ileus

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

607

Children who are born without a thyroid gland or who have a nonfunctioning gland develop a condition called cretinism. If untreated, these children will have poor growth and development and mental retardation because of the lack of thyroid hormone stimulation. The child would not be at increased risk of renal dysfunction, immune deficiency, or paralytic ileus. 16.

A patient is diagnosed with a simple goiter and asks the nurse what caused it. What is the nurse’s best response?

A goiter is the result of too much thyroxine.

A goiter is the result of a chloride deficiency.

A goiter is the result of too much TSH.

A goiter is the result of an iodine deficiency.

Ans:

C Feedback: Goiter (enlargement of the thyroid gland) is an effect of hyperthyroidism, which occurs when the thyroid is overstimulated by thyroid stimulating hormone (TSH). This can happen if the thyroid gland does not produce sufficient thyroid hormones to turn off the hypothalamus and anterior pituitary. In the body’s attempt to produce the needed amount of thyroid hormone, the thyroid is continually stimulated by increasing levels of TSH. There is a deficiency of thyroxine. It is not related to chloride or iodine deficiencies.

17.

The patient with hypothyroidism takes levothyroxine daily and has triiodothyronine (T3), thyroxine (T4), and thyroid-stimulating hormone (TSH) levels drawn in the laboratory to check appropriateness of prescribed dosage. What results would the nurse analyze as indicating the need for a higher dosage of medication?

Elevated TSH, elevated T3, and reduced T4 levels

Reduced TSH, elevated T3 and T4 levels

Elevated TSH, reduced T3 and T4 levels

Reduced TSH, T3, and T4 levels

Ans:

C Feedback: TSH levels would be elevated to stimulate increased thyroid hormone secretion whereas T4 and T3 will

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

608

be low, which indicates the need for a higher dosage of medication. If TSH level is low, it would indicate a reduction in dosage would be needed, particularly if T3 and T4 levels are elevated. 18.

A patient presents at the clinic with complaints of weight loss despite an increased appetite. The nurse assesses this patient for what?

Chronic thyroiditis

Hypercalcemia

Hypothyroidism

Hyperthyroidism

Ans:

D Feedback: Hyperthyroidism is manifested by increased metabolism and energy usage. It is not manifested by chronic thyroiditis, hyperglycemia, or hypothyroidism.

19.

What patient will the nurse assess most closely for secondary hyperparathyroidism?

The 12-year-old patient with hypothyroidism

The 68-year-old patient with chronic renal failure

The 35-year-old patient with diabetes mellitus

The 48-year-old patient with hyperthyroidism

Ans:

B Feedback: Secondary hyperparathyroidism occurs most frequently in patients with chronic renal failure. Primary hyperparathyroidism occurs more often in women between 60 and 70 years of age. Although hyperparathyroidism can occur at any age, the patient with diabetes or thyroid disorder would not be at higher risk for the disorder.

20. A)

What drug would the nurse appropriately administer to the patient to treat hypothyroidism? Teriparatide

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Methimazole

Propylthiouracil

Levothyroxine

Ans:

609

Feedback: Levothyroxine (Synthroid, Levoxyl, Levothroid), a synthetic salt of thyroxine, is the most frequently used replacement hormone to treat hypothyroidism because of its predictable bioavailability and reliability. Propylthiouracil and methimazole would be used to treat hyperthyroidism; teriparatide is an antihypocalcemic agent. 21.

The nurse is caring for a patient with a history of myocardial infarction and heart failure. What thyroid replacement drug would the nurse question if ordered?

Liothyronine

Levothyroxine

Thyroid desiccated

Methimazole

Ans:

A Feedback: Liothyronine and liotrix have a greater incidence of cardiac adverse effects and are not recommended for use in patients with potential cardiac problems or patients who are prone to anxiety reactions. Levothyroxine would be the drug of choice and thyroid desiccated would not be contraindicated. Methimazole is a treatment for hyperthyroidism and would not be appropriate for the patient with hypothyroidism.

22.

The nurse is caring for a patient newly diagnosed with hypothyroidism. The patient also takes theophylline to control asthma symptoms. What changes will need to be made to the patient’s theophylline dose?

Decrease theophylline dosage immediately.

Increase theophylline dosage immediately.

Increase theophylline dose when normal thyroid function returns.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Decrease theophylline dose when normal thyroid function returns.

Ans:

610

Feedback: Theophylline clearance is decreased in hypothyroid states. As the patient approaches normal thyroid function, theophylline dose may need to be adjusted frequently. As the drug is cleared more quickly, the dosage may need to be increased. 23.

The nurse is caring for a 57-year-old woman who is complaining about gaining so much weight after menopause and suggests that thyroid hormone replacement would help her lose weight and speed up her metabolism. What is the nurse’s best response?

Inducing a state of hyperthyroidism would result in weight loss.

People who are not hypothyroid should not take thyroid hormones.

People who take thyroid hormones without cause will end up damaging their heart.

The body compensates for the extra hormone by reducing the amount secreted.

Ans:

D Feedback: Taking thyroid hormone with normal thyroid function results in disruption of the hypothalamicpituitarythyroid control resulting in decreased production of thyrotropin-releasing hormone (TRH) and thyroid-stimulating hormone (TSH) as the hypothalamus and pituitary sensed the rising levels of thyroid hormone. Because the thyroid was no longer stimulated to produce and secrete thyroid hormone, thyroid levels would actually fall. This would put the patient at greater risk of gaining weight. There is no evidence it would cause heart damage. Because thyroid hormone production is reduced, a state of hyperthyroidism is not induced. Even though the statement that people who are not hypothyroid should not take thyroid hormones is correct, it does not provide enough information to dissuade this patient from a dangerous practice.

24.

The patient is 8 weeks pregnant and requires an antithyroid medication. The nurse identifies what drug as the drug of choice for this patient?

Propylthiouracil

Radioactive iodine

Alendronate

Methimazole

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

611

A Feedback: If an antithyroid drug is essential during pregnancy, propylthiouracil (PTU) is the drug of choice because it is less likely to cross the placenta and cause problems for the fetus. Radioactive agents should not be used. Bisphosphonates should be used during pregnancy only if the benefit to the mother clearly outweighs the potential risk to the fetus. Methimazole is an antithyroid medication but would not be the drug of choice for the pregnant woman.

25.

The nurse is discharging a patient with a new prescription for levothyroxine. What would the nurse teach the patient to report to her health care provider? (Select all that apply.)

Nervousness

Insomnia

Chest pain

Loss of hair

Nausea

Ans:

A, B, C Feedback: Report chest pain, heart palpitations, nervousness, or insomnia. These adverse effects result from excessive stimulation and may indicate that drug dosage or intake of other stimulants needs to be reduced. Loss of hair is usually only seen in the first few months of therapy in children; nausea need not be reported unless it is persistent or interferes with adequate caloric intake.

26.

The nurse tells the patient his or her serum calcium level is elevated and the patient asks what controls calcium levels in the body. What is the nurse’s best response?

Renin

Parathyroid hormone (PTH)

Thyroid-stimulating hormone (TSH)

Epoetin

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

612

Feedback: PTH is the most important regulator of serum calcium levels in the body. Renin controls blood pressure, epoetin stimulates production of red blood cells, and TSH stimulates thyroid hormone secretion. 27.

The nurse is caring for a patient diagnosed with hyperparathyroidism who asks the nurse why parathyroid hormone (PTH) is important. The nurse explains that PTH performs what actions in the body? (Select all that apply.)

Stimulation of osteoclasts

Increased intestinal absorption of calcium

Stimulation of calcitriol production

Increased excretion of calcium from kidneys

Decreased retention of vitamin D

Ans:

A, B, C Feedback: PTH has many actions, including stimulation of osteoclasts or bone cells to release calcium from the bone, increased intestinal absorption of calcium, increased calcium reabsorption from the kidneys, and stimulation of cells in the kidney to produce calcitriol. PTH increases absorption of calcium from the kidney and increases retention of vitamin D.

28.

The nurse is teaching the patient how to take his newly prescribed alendronate and includes what teaching points? (Select all that apply.)

Take the drug in the morning.

Wait 60 minutes before eating breakfast.

Take the drug with a full glass of water.

Remain upright for 30 minutes after taking the medication.

Eat a breakfast high in calcium after taking the medication.

Ans:

A, C, D Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

613

Alendronate, ibandronate, and risedronate need to be taken on arising in the morning, with a full glass of water, fully 30 minutes before any other food or beverage, and the patient must then remain upright for at least 30 minutes; taking the drug with a full glass of water and remaining upright for at least 30 minutes facilitates delivery of the drug to the stomach. These drugs should not be given to anyone who is unable to remain upright for 30 minutes after taking the drug because serious esophageal erosion can occur. There is no need to eat a high-calcium breakfast, although the patient should make certain of adequate calcium intake. 29.

The nurse is caring for an asthmatic patient prescribed zoledronic acid. What important question should the nurse ask this patient?

Can you take aspirin without experiencing any bad effects?

Are you taking theophylline to treat your asthma?

Do you have a history of diarrhea?

Are you taking digoxin?

Ans:

A Feedback: Zoledronic acid should be used cautiously in aspirin-sensitive asthmatic patients. Gastrointestinal (GI) distress may increase if bisphosphonates are combined with aspirin; this combination should, therefore, be avoided if possible. There is no drug interaction between theophylline and zoledronic acid or between digoxin and zoledronic acid. A history of diarrhea would not impact the ability to administer zoledronic acid.

30.

The nurse is caring for a pediatric patient with hypercalcemia. What condition would the nurse suspect is causing this altered serum calcium level?

Radiation injury

Malignancy

Kidney failure

Hypothyroidism

Ans:

B Feedback: Hypercalcemia is relatively rare in children, although it may be seen with certain malignancies. It

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

614

would not result from a radiation injury, which would be more likely to affect the thyroid gland and it would not be caused by kidney failure or hypothyroidism. 31.

The nurse is caring for a patient who takes alendronate. What lab studies would the nurse assess regularly?

Serum iodine

Serum potassium

Serum calcium

Serum iron

Ans:

C Feedback: Alendronate and risedronate are commonly used drugs for osteoporosis and calcium lowering. Serum calcium levels need to be monitored carefully with any of the drugs that affect calcium levels. Administration of alendronate would not require monitoring of iodine, potassium, or iron levels.

32.

The patient, newly prescribed cinacalcet hydrochloride (Sensipar), asks the nurse how this drug works. What is the nurse’s best response?

It slows or blocks bone’s resorption of calcium.

It promotes entry of calcium into bone.

It balances the effects of parathyroid hormone to lower serum calcium levels.

It increases the receptor’s sensitivity to extracellular calcium.

Ans:

B Feedback: Cinacalcet hydrochloride is a calcimimetic drug that increases the sensitivity of the calcium-sensing receptor to activation by extracellular calcium. In increasing the receptors’ sensitivity, cinacalcet lowers parathyroid hormone (PTH) levels, causing a concomitant decrease in serum calcium levels. Bisphosphonates act to slow or block bone resorption; by doing this, they help to lower serum calcium levels, but they do not inhibit normal bone formation and mineralization. Calcitonins balance the effects of PTH by reducing calcium levels. Cinacalcet does not promote entry of calcium into the bone.

33.

The nurse reviews the patient’s laboratory results and sees that the serum calcium level is acceptable as long as it is within what range?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

1 and 3 mg/dL

4 and 6 mg/dL

6 and 8 mg/dL

9 and 11 mg/dL

Ans:

615

Feedback: Calcium is an electrolyte that is used in many of the body’s metabolic processes. These processes include membrane transport systems, conduction of nerve impulses, muscle contraction, and blood clotting. To achieve all of these effects, serum levels of calcium must be maintained between 9 and 11 mg/dL. Other options are incorrect. 34.

What electrolyte affects parathyroid hormone (PTH) secretion other than calcium?

Magnesium

Sodium

Potassium

Zinc

Ans:

A Feedback: Another electrolytemagnesiumalso affects PTH secretion by mobilizing calcium and inhibiting the release of PTH when concentrations rise above or fall below normal. Sodium, potassium, and zinc do not affect PTH function.

35.

The nurse administers teriparatide (Forteo) and evaluates the drug as effective in achieving desired effects when what is assessed?

Increase in serum calcium and phosphorous

Increase in serum calcium and decrease in serum phosphorous

Decrease in serum calcium and phosphorous

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Decrease in serum calcium and increase in serum phosphorous

Ans:

616

Feedback: With once-daily administration, teriparatide stimulates new bone formation, leading to an increase in skeletal mass. It increases serum calcium and decreases serum phosphorous.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

617

Chapter 38 - Agents to Control Blood Glucose Levels

An type 1 (insulin-dependent) diabetic reports recurrent hypoglycemia late in the morning. After collecting his health history what finding would the nurse suspect is causing the late morning hypoglycemia?

The patient likes to nap after work before his evening meal.

The patient jogs 2 miles in the morning before he goes to work.

The patient likes to have an early lunch with his girlfriend.

The patient eats oatmeal early in the morning for breakfast.

Ans:

B Feedback: Physical exercise, such as jogging, changes insulin requirements and may result in a delayed hypoglycemic reaction. The fact that he likes to nap before dinner and has an early lunch is unrelated to his hypoglycemia. The patient eating oatmeal early in the morning would help stabilize his blood sugars until later in the morning, but the jogging would have a dramatic effect.

The nurse suspects the diabetic patient may be having a hypoglycemic reaction when what manifestation is assessed?

Dry, flaky skin

Diaphoresis

Flushing of the face

Fruity breath

Ans:

B Feedback: Diaphoresis and cool clammy skin are signs of hypoglycemia. A fruity breath is seen with ketoacidosis. Flushing of the face is associated with hyperglycemia.

The nurse is preparing patient teaching for a diabetic patient who is to begin pramlintide acetate (Symlin) therapy, which will be taken in addition to insulin. What is the priority nursing instruction to include in this teaching plan?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The drug is injected subcutaneously immediately before a major meal.

The drug has a rapid onset of action.

Inject the drug at least 2 inches away from any insulin injection site.

Do not combine the drug with insulin in the same syringe.

Ans:

618

Feedback: Pramlintide works to modulate gastric emptying after a meal, so correct timing of administration of this drug is essential to its function. All options are appropriate instructions for this drug. However, making sure that the patient understands that injecting the medication immediately before eating a major meal is most important because it has a dramatic effect on the therapeutic action of the drug. If the medication is not given at the correct time, the other options would be insignificant. 4.

What type of insulin would the nurse administer if the fastest therapeutic effects are needed?

Lispro (Humalog)

Aspart (NovoLog)

Regular (Humulin R)

Glulisine (Apidra)

Ans:

D Feedback: Glulisine has an onset of 2 to 5 minutes and peaks in 30 to 90 minutes so it has the fastest onset of action. Lispro has an onset in <15 minutes and also peaks at 30 to 90 minutes. Aspart takes 10 to 20 minutes for onset and peeks in 1 to 3 hours. Regular insulin has a 30 to 60 minute onset and peaks in 2 to 4 hours.

When the nurse administers an oral combination drug called Metaglip, what doses of the two medications are being administered?

2.5 mg glipizide, 500 mg metformin

1.25 mg glyburide, 250 mg metformin

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

5 mg glipizide, 250 mg metformin

4 mg rosiglitazone, 500 mg metformin

Ans:

619

Feedback: Metaglip is a combination of 2.5 mg glipizide with 250 or 500 mg metformin or 5 mg glipizide and 500 mg metformin. Glucovance is a combination of 1.25 mg glyburide with 250 mg metformin, 2.5 mg glyburide with 500 mg metformin, and 5 mg glyburide with 500 mg of metformin. Avandamet is a combination of 1, 2, or 4 mg rosiglitazone with 500 mg metformin. 6.

The patient, newly diagnosed with diabetic retinopathy, asks what caused this disorder. What is the nurse’s best response?

Inability of cells in the eye to reproduce

Increase of aqueous humor in the eye

Decrease of nerve innervations throughout the eye

Oxygen cannot diffuse rapidly across the membrane to tissues in the eye

Ans:

D Feedback: The body’s inability to effectively cope with carbohydrate, fat, and protein metabolism over a long period of time results in a thickening of the basement membrane in large and small blood vessels. This thickening leads to changes in oxygenation of the lining of the vessels causing damage and narrowing of the vessels. The decreased blood flow through the vessels results in the inability of oxygen to rapidly diffuse across the membrane to the tissues of the eye. The tiny vessels of the eye are narrowed and closed, which causes loss of vision. Increase of aqueous humor is seen in glaucoma. Inability of cell replication and decrease in nerve innervations throughout the eye is not associated with retinopathy.

A diabetic patient is taking regular and NPH insulin to manage his diabetes. What is the best evaluation tool to measure the overall patient response to the insulin therapy?

Blood pressure

Bilirubin level

Glycosylated hemoglobin (HbAlc) levels

Fasting blood glucose levels

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

620

C Feedback: HbAlc levels provide a 3-month average of glucose levels, which provides the best evaluation tool to measure the overall patient response to the treatment plan. Blood pressure readings would be used to evaluate a patient’s response to an antihypertensive drug. Bilirubin could indicate liver function. Fasting blood glucose levels provide only a baseline blood sugar and no historical overview. Comparing fasting blood glucose levels with HbAlc is like comparing a picture to a video because the HbAlc looks back across a period of 3 months whereas a blood glucose test result only tells you about the exact moment the blood was drawn.

A patient is brought to the emergency department with severe hypoglycemia. What drug would the nurse prepare to administer intravenously?

Diazole (Hyperstat)

Glyburide (DiaBeta)

Glucagon (GlucaGen)

Insulin (Humulin R)

Ans:

C Feedback: This patient will need a glucose-elevating agent. Glucagon (GlucaGen) is given parenterally only and is the preferred agent for emergency situations. Diazole is also a glucose-elevating agent but is only administered so it would take longer to take effect. Insulin would be administered for hyperglycemia. Glyburide is an oral antidiabetic agent, which is a second-generation sulfonylurea, and is administered for hyperglycemia.

The nurse will question what medication order for a diabetic patient who takes insulin to control his blood sugar level?

Propranolol (Inderal) 10 mg orally t.i.d.

Furosemide (Lasix) 60 mg/d orally

Cefaclor (Ceclor) 250 mg orally every 8 hour

Metoclopramide (Reglan) 20 mg PO

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

621

Feedback: Propranolol is a beta-blocker and should be avoided in combination with insulin. The blocking of the sympathetic nervous system also blocks many of the signs and symptoms of hypoglycemia, hindering the patient’s ability to recognize problems. If propranolol must be taken, the nurse will need to teach this patient other ways to recognize hypoglycemia. Furosemide, cefaclor, and metoclopramide do not cause drugdrug interactions with insulin. 10.

A patient comes to the diabetes educator and asks about changing his insulin. The patient explains that his occupation takes him on long international flights and he does not want to administer insulin on the plane. What kind of insulin would the diabetic nurse educator seek an order for?

Lispro (Humalog)

Glulisine (Apidra)

Ultralente (Humulin U Ultralente)

Aspart (NovoLog)

Ans:

C Feedback: Ultralente has a duration of 20 to 36 hours and a peak time of 10 to 30 hours. This would prevent him having to administer insulin on the airplane. Lispro has a duration of 2 to 5 hours and a peak time of 30 to 90 minutes. Glulisine has a duration of 1 to 2.5 hours and a peak time of 30 to 90 minutes. Aspart has a duration of 3 to 5 hours and a peak time of 1 to 3 hours. The last three insulin types mentioned in this Rationale would likely require administration on long plane flights.

11.

The diabetes nurse educator describes type 1 diabetes with what statement?

Blood glucose level can be controlled with diet.

Exogenous insulin is required for life.

Oral agents can help to control blood glucose levels.

It is always diagnosed in early childhood.

Ans:

B Feedback: Type 1 diabetes results from an autoimmune disorder that destroys pancreatic beta cells. Insulin is the

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

622

only effective treatment for type 1 diabetes because pancreatic beta cells are unable to secrete endogenous insulin and metabolism is severely impaired. In type 1 diabetes, blood glucose levels cannot be controlled with diet, oral agents cannot control the disease process because they stimulate insulin production, and the patient with type 1 diabetes does not produce insulin. It can be diagnosed at other stages of the life span than just in early childhood. 12.

A patient is admitted to the emergency department in diabetic ketoacidosis (DKA) with a blood glucose level of 485 mg/dL. The physician orders an initial dose of 25 U insulin IV. Which type of insulin will be administered?

NPH insulin

Humulin L insulin

Humulin N insulin

Regular insulin

Ans:

D Feedback: Regular insulin is a short-acting insulin that manages the hyperglycemia and hyperkalemia resulting from DKA, which is a life-threatening complication that occurs with severe insulin deficiency. Furthermore, only regular insulin can be given IV and is the drug of choice in emergency situations. Humulin N, Humulin L, and NPH are intermediate-acting forms.

13.

What instructions would be important to give to a 50-year-old patient with type 2 diabetes who has been switched from glyburide (DiaBeta) to repaglinide?

It is less potent, so you will need to take a larger dose.

It stimulates insulin production, so you need to eat soon after taking the medication.

It is more potent and longer lasting, so you should take it every other day.

The two medications are virtually the same.

Ans:

B Feedback: Glyburide is a second-generation sulfonylurea that stimulates insulin release from the beta cells in the pancreas with a 2- to 4-hour onset of action. Repaglinide has an onset of action within 30 minutes with peak effect in 1 hour, and duration of action is approximately 3 to 4 hours. Because repaglinide has a much faster onset of action, it is important the patient eats within15 to 30 minutes after taking the drug to avoid hypoglycemia. Repaglinide is not less potent, it is not more potent, and the two medications

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

623

are not virtually the same. 14.

The nurse is instructing a patient how to mix NPH insulin with regular insulin in one syringe. The nurse tells the patient the mixture must be administered within how long after it is prepared?

5 minutes

10 minutes

15 minutes

20 minutes

Ans:

C Feedback: Use caution when mixing types of insulin. Administer mixtures of regular and NPH or regular and lente insulins within 15 minutes after combining them to ensure appropriate suspension and therapeutic effect.

15.

The nurse is caring for a 3-year-old child newly diagnosed with type 1 diabetes. When developing the plan of care for this child, the nurse incorporates challenges the child faces that the adult does not, which includes what? (Select all that apply.)

Children have a faster metabolic rate.

Growth must be balanced with diet and activity.

Insulin dose may be so small it is hard to calibrate accurately.

Increased resistance by child to dietary restrictions is common.

Changing metabolism makes regulating insulin difficult.

Ans:

A, B, C Feedback: Treatment of diabetes in children is a difficult challenge of balancing diet, activity, growth, stressors, and insulin requirements. Children need to be carefully monitored for any sign of hypoglycemia or hyperglycemia and treated quickly because their fast metabolism and lack of body reserves can push them into a severe state quickly. Insulin dosage, especially in infants, may be so small that it is difficult to calibrate. Insulin often needs to be diluted to a volume that can be detected on the syringe. It is usually during adolescence when increased resistance to dietary restrictions and changing metabolism makes regulating insulin difficult so this would not be part of the plan of care for a 3-year-old.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

16.

624

With what patient would the nurse question the administration of human insulin?

Gestational diabetes

Type 2 diabetes controlled on oral antidiabetic agents with systemic infection

Type 1 diabetes of many years

Type 2 diabetes controlled by diet

Ans:

D Feedback: Insulin is recommended for treatment of type 2 diabetes in patients whose diabetes cannot be controlled by diet or other pharmacotherapeutic agents. If the diabetes can be controlled by diet, the pancreas is still functioning and releasing insulin. Human insulin can be used in gestational diabetes, patients with type 2 diabetes controlled on oral antidiabetic agents with systemic infection, or patients with type 1 diabetes of many years standing.

17.

The nurse is teaching the patient about the newly prescribed external insulin pump. What are priority teaching points for the nurse to include? (Select all that apply.)

Watch for signs and symptoms of infection.

Check blood glucose frequently.

Change tubing frequently.

Have pump calibrated weekly.

Added insulin requires separate injection site.

Ans:

A, B, C, D Feedback: This pump device can be worn on a belt or hidden in a pocket and is attached to a small tube inserted into the subcutaneous tissue of the abdomen. The device slowly leaks a base rate of insulin into the abdomen all day; the patient can pump or inject booster doses throughout the day to correspond with meals and activity. The device does have several disadvantages. For example, it is awkward, the tubing poses an increased risk of infection and requires frequent changing, and the patient has to frequently check blood glucose levels throughout the day to monitor response. There is no need to calibrate the pump.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

18.

625

The nurse, working in the emergency department, receives a patient following a motor vehicle accident whose medical history is unknown with a blood glucose level of 325 mg/dL. What rationale does the nurse provide explaining this elevated blood glucose level?

The patient’s accident was caused by diabetic ketoacidosis (DKA).

The patient has not been taking the antidiabetic agent as prescribed.

The patient most likely just finished a meal.

The stress reaction caused an increase in blood sugar.

Ans:

D Feedback: The stress reaction elevates the blood glucose concentration above the normal range. In severe stress situations, the blood glucose level can be very high (300 to 400 mg/dL). The body uses that energy to fight the insult or flee from the stressor. The patient may or may not be diabetic so this is not DKA, not an indication of medication noncompliance, and not an indication the patient had just eaten.

19.

A patient with type 2 diabetes presents at the clinic for a routine follow-up appointment. The patient asks the nurse whether she can take the herbal supplement ginseng. What is the correct response by the nurse?

It increases the risk for high blood glucose levels.

It increases the risk for low blood glucose levels.

There is no research to indicate what effect it will have.

There is no reason ginseng cannot be taken by people with diabetes.

Ans:

B Feedback: Patients being treated with antidiabetic therapies are at an increased risk of developing hypoglycemia if they use herbals containing juniper berries, ginseng, garlic, fenugreek, coriander, dandelion root, or celery. If a patient uses these therapies, blood glucose levels should be monitored closely and appropriate dose adjustment made in the prescribed drug.

20.

The nurse is performing diabetes screening and recognizes what ethnic group is at higher risk for diabetes but is also predisposed to a higher normal range of blood glucose? Native Americans

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Japanese Americans

African Americans

Caucasian Americans

Ans:

626

Feedback: Certain ethnic groups tend to have a genetically predetermined variation in blood glucose levels, possibly caused by a variation in metabolism. For example, Native Americans, Hispanic Americans, and Japanese Americans have higher blood glucose levels than white Americans do. Groups that are more likely to develop diabetes mellitus include African Americans, Native Americans, and Hispanic Americans. 21.

The nurse is caring for a patient with renal dysfunction who requires an oral antidiabetic agent. What drug will the nurse expect to see ordered?

Tolbutamide

Chlorpropamide

Tolazamide

Chlorpromazine

Ans:

A Feedback: Tolbutamide is preferred for patients with renal dysfunction, who may not be able to excrete chlorpropamide, because it is more easily cleared from the body. Tolbutamide, chlorpropamide, and tolazamide are all first-generation sulfonylureas, but tolazamide is used less frequently and is usually tried after the first two drugs have been shown to be ineffective. Chlorpromazine (Thorazine) is an antipsychotic agent.

22.

A patient with type 1 diabetes takes 12 units of regular insulin and 34 units of NPH insulin in the morning. How would the nurse explain why two different types of insulin are required to control the patient’s blood sugar?

Different onsets and peak effects extends blood glucose control.

The mixture makes each drug work more effectively.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The combination reduces the adverse effects experienced.

Patients are less likely to experience hypoglycemia.

Ans:

627

Feedback: Regular insulin will begin working within 30 to 60 minutes and peak within 2 to 4 hours and a 6- to 12hour duration of action whereas NPH insulin has an onset of 60 to 90 minutes and peaks in 4 to 12 hours, with a 24-hour duration of action. By giving both drugs at once, the patient gets rapid blood glucose control within 30 minutes from the regular insulin and the control lasts 24 hours due to NPH’s long duration of action. The combination does not make the drugs work more effectively, it does not reduce adverse effects, and patients are more likely to experience hypoglycemia if they do not eat properly. 23.

What antidiabetic agent is approved for the nurse to administer to children 10 years old and older with type 2 diabetes?

Pioglitazone

Repaglinide

Liraglutide

Metformin

Ans:

D Feedback: Metformin is the only oral antidiabetic drug approved for children. It has established dosage for children 10 years of age and older. With the increasing number of children being diagnosed with type 2 diabetes, the use of other agents in children is being tested. Because metformin is the only drug approved for use with children, pioglitazone, repaglinide, and liraglutide would not be appropriate.

24.

The nurse is caring for a pregnant patient diagnosed with pregnancy-induced diabetes. What antidiabetic agent is best suited for administration to this patient?

Metformin

Acarbose

Insulin

Glyburide

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

628

C Feedback: Insulin therapy is the best choice for patients with diabetes during pregnancy and lactation, which are times of high stress and metabolic demands. Oral antidiabetic medications are contraindicated during pregnancy so metformin, acarbose, and glyburide are not the best choices.

25.

The home care nurse is caring for an older adult patient with visual impairment who cannot see the numbers on the syringe when preparing insulin for administration and cannot afford the increased cost of prefilled auto syringes. What strategy might the nurse use to help this patient comply with insulin needs between visits?

Change the patient to oral antidiabetics.

Prepare a week’s supply of syringes and refrigerate.

Have the patient use a magnifying glass.

Ask a neighbor to come over every day to prepare the medication.

Ans:

B Feedback: Older adults can have many underlying problems that complicate diabetic therapy. Poor vision and/or coordination may make it difficult to prepare a syringe. A week’s supply of syringes can be prepared and refrigerated for the usual dose of insulin. If the patient is using insulin it is most likely because oral antidiabetic medications don’t work. A magnifying glass is impractical because drawing up medication requires two hands and a magnifying glass will not help the patient to see well enough to be safe. It is a big imposition to expect a neighbor to be constantly available and this would not be the best choice.

26.

The nurse admits a patient to the emergency department and recognizes the patient is in diabetic ketoacidosis (DKA) when what manifestations are assessed? (Select all that apply.)

Fruity breath

Edema

Dehydration

Agitation

slow and deep respirations

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

629

A, C, E Feedback: Signs of impending dangerous complications of hyperglycemia such as DKA include the following: fruity breath as the ketones build up in the system and are excreted through the lungs; dehydration as fluid and important electrolytes are lost through the kidneys; slow and deep respirations (Kussmaul’s respirations) as the body tries to rid itself of high acid levels; loss of orientation and coma rather than agitation are to be expected. Edema is not a sign of DKA.

27.

The patient with diabetes asks the nurse why different oral antidiabetic agents are ordered instead of just one drug. What is the nurse’s best explanation of the benefit of combining different agents?

Maximum effects

Additive effects

Minimalistic effects

Synergistic effects

Ans:

B Feedback: Five types of oral antidiabetic agents exist, all of which may be used to treat type 2 diabetes when diet and exercise alone fail to control the disorder. The drugs lower blood sugar by different mechanisms and may be used in various combinations for additive effects.

28.

The nurse is caring for an obese woman who was just diagnosed with type 2 diabetes. When developing this patient’s plan of care, what is the priority nursing diagnosis?

Imbalanced nutrition: more than body requirements related to obesity

Risk for unstable blood glucose related to ineffective dosing of antidiabetic agents

Disturbed sensory perception related to glucose levels

Ineffective coping related to diagnosis and therapy

Ans:

A Feedback: The priority with this patient is to address her obesity because losing weight may eliminate the

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630

problem. Depending on the agent that is ordered, there may be risk for unstable blood glucose and the patient may need support to cope with the diagnosis but these are not the priority concern. Disturbed sensory perception is not indicated to be a problem at this time. 29.

What outcome would best indicate the nurse’s teaching was effective and that drug therapy was appropriate?

The patient can explain how to take the medication.

The patient demonstrates the correct procedure for monitoring blood sugar.

The patient follows an appropriate diet.

Blood glucose level is stable with no diabetic complications.

Ans:

D Feedback: The single best indicator, and the goal of treatment, is to help the patient maintain a stable blood glucose level so as to be able to avoid any complications. For the patient to maintain a stable blood glucose level, he needs to understand how to take his medication, to check his blood sugar level, and to follow an appropriate diet, but the best indicator is the stable glucose level.

30.

The nurse is caring for a postoperative patient whose diabetes has been well controlled on acarbose (Precose). The patient is not allowed to take anything orally following abdominal surgery and is receiving high-glucose total parenteral nutrition via a central IV line. What medication can the nurse administer IV to control the patient’s blood glucose level?

Glyburide

Acarbose

NPH insulin

Regular insulin

Ans:

D Feedback: Only regular insulin can be administered IV. No other insulins or oral antidiabetic medications can be given IV.

31.

The nurse is caring for a patient with polycystic ovary syndrome. What antidiabetic drug would the nurse anticipate will be ordered?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Metformin

Acarbose

Insulin

Glyburide

Ans:

631

Feedback: Metformin and pioglitazone have proven effective in increasing insulin sensitivity and decreasing androgen and luteinizing hormone levels to break the cycle and allow ovulation to occur if pregnancy is desired. A fertility drug is often used with the antidiabetic agent. Other options are not appropriate because they are not indicated for treating polycystic ovary syndrome. 32.

The nurse is caring for an adolescent newly diagnosed with type 1 diabetes. The patient says, I can’t believe I’m going to spend the rest of my life sticking myself with needles. What future possibilities for insulin delivery can the nurse share with this patient? (Select all that apply.)

Implantable insulin pump

Insulin patch

Inhaled insulin

Oral insulin

Pancreas transplant

Ans:

A, B, C Feedback: Research is ongoing to obtain approval for an implantable insulin pump, an insulin patch, and inhaled insulin. Insulin cannot be taken orally because it is destroyed by gastric secretions and transplanting a pancreas for treatment for diabetes is not likely.

33.

The nurse is caring for a patient taking Bromocriptine (Cycloset). What is an advantage of this medication? Reduces risk of heart attack or stroke

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Has no adverse effects

Is taken four times a day

Long-term studies needed

Ans:

632

Feedback: Bromocriptine-therapy patients had improved HbA1c levels, showing better glycemic control, and were less likely to have a heart attack or stroke or to die of heart disease. All drugs have adverse effects. Taking the medication four times a day and the need for long-term studies are not advantages of the drug. 34.

The nurse transcribes an order for chlorpropamide (Diabinese). What is an appropriate dosage range for this medication?

0.25 to 3 g per day

2 mg per day

100 to 250 mg per day

5 mg orally daily

Ans:

C Feedback: The appropriate dosage range for oral chlorpropamide is 100 to 250 mg/d. Tolbutamide is 0.25 to 3 g/d. Glimepiride is 1 to 4 mg/d. Glipizide is taken 5 mg PO daily.

35.

What is the maximum daily dosage of metformin the nurse can administer to a child aged 10 to 16 years?

500 mg

850 mg

2,000 mg

2,550 mg

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

633

C Feedback: Children should not receive more than 2,000 mg/d whereas adults should not receive more than 2,550 mg/d. The normal dosage for children is 500 mg/d and for adults is 500 to 850 mg/d.

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634

Chapter 39 - Introduction to the Reproductive System

What hormone stimulates the release of the follicle-stimulating hormone (FSH) from both male and female glands?

Growth hormone-releasing hormone (GHRH)

Thyrotropin-releasing hormone (TRH)

Gonadotropin-releasing hormone (GnRH)

Prolactin-releasing hormone (PRH)

Ans:

C Feedback: The male and female glands respond to luteinizing hormone (LH) and FSH, which are released from the anterior pituitary in response to stimulation from GnRH that is released from the hypothalamus. GHRH stimulates the release of the growth hormone, which targets cell growth. TRH stimulates the thyroid-stimulating hormone, which targets the thyroid gland. PRH stimulates the release of prolactin, which is necessary for milk production.

A nurse is providing patient education to a patient as part of her work in a fertility clinic. The nurse explains possible reasons for infertility. When explaining how the ovaries are involved in conception, what will the nurse stress?

Ova quickly degenerate and most are absorbed in the body before the age of 12.

The ovaries at birth contain all of the ova that a woman will have.

Ova aggregate, causing millions to be contained in a storage site called a follicle.

Follicles produce only estrogen; the uterus produces progesterone.

Ans:

B Feedback: It would be important to explain that the woman’s ova do not increase or decrease from birth to childbearing years. The nurse will stress that all the ova that a woman will have will be present at birth. The patient should understand that if she does not ovulate 1 month or for several months, it is not because she has done something to her body to cause this. Ova slowly degenerate over a lifetime or they are released once a month until menopause is complete. Each ovum is contained in a storage site

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

635

called a follicle, which produces the female sex hormones, estrogen and progesterone. 3.

The nursing instructor is discussing the physiology of pregnancy with her clinical group. What hormone, produced during pregnancy, would the instructor tell the students helps to maintain the pregnancy until birth of the fetus? Options A, B, and C are not correct.

High levels of estrogen only

High levels of estrogen, low levels of progesterone

Low levels of estrogen, high levels of progesterone

High levels of estrogen and progesterone

Ans:

D Feedback: In a pregnant woman, both estrogen and progesterone hormones have specific functions. High levels of both hormones are needed for the maintenance of pregnancy.

The nursing instructor is talking with her class of students about the female reproductive system. A student is trying to understand the role of progesterone in the body. What nonreproductive affect does progesterone have on the body?

Decreased body temperature

Decreased appetite

Anti-insulin

Increased uterine motility

Ans:

C Feedback: Progesterone has an anti-insulin effect to generate a higher blood glucose concentration to allow for rapid diffusion of glucose to the developing embryo. Body temperature and appetite are increased by progesterone. Uterine motility is decreased to provide increased chance that implantation can occur.

What hormone causes ovulation to occur?

Adrenocorticotropic hormone (ACTH)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Luteinizing hormone (LH)

Prolactin

Follicle-stimulating hormone (FSH)

Ans:

636

Feedback: When the circulating estrogen level rises high enough, it stimulates a massive release of LH from the anterior pituitary causing one of the developing follicles to burst and release the ovum with its stored hormones into the system. ACTH targets the adrenal corticosteroid hormone, which helps prepare the body for the fight or flight response. Prolactin is responsible for milk production and FSH in combination with LH stimulate follicles on the outer surface of the uterus to grow and develop and also stimulates the release of estrogen and progesterone. 6.

A 16-year-old girl comes to the clinic complaining of severe menstrual cramps. The girl is concerned about the pain and worried that something is wrong. The nurse explains to the patient that she has cramping during her menstrual period because of what?

An increase in the levels of estrogen and progesterone, which cause uterine contractions

Low levels of plasminogen in the uterus that cause the shedding of the lining of the uterus

Prostaglandins in the uterus, which stimulate uterine contractions to clamp off vessels as the lining of her uterus sheds

An increase in progesterone and a decrease of estrogen cause the lining of the uterus to slough away

Ans:

C Feedback: Prostaglandins in the uterus stimulate uterine contractions to clamp off vessels in the lining of the uterus, which is the cause of the cramping. The decrease of estrogen and progesterone after the involution of the corpus luteum triggers the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The decreased levels of FSH and LH cause the inner lining of the uterus to slough off because the vascular system is no longer being stimulated. High, not low, levels of plasminogen in the uterus prevent clotting of the lining as the vessels shear off.

What hormone is the first to be produced when the ovum is fertilized and implanted in the uterine wall?

Growth hormone (GH)

Human chorionic gonadotropin

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Prolactin

Adrenocorticotropic hormone (ACTH)

Ans:

637

Feedback: After the ovum is fertilized and implants itself in the uterine wall, human chorionic gonadotropin is produced by the junction of the fertilized embryo with the uterine wall. ACTH and GH are not involved with his process. The release of prolactin helps with milk production for the delivered fetus. 8.

The physiology instructor is discussing the effects of the sex hormones on the human body. Testosterone is responsible for what effects on the male body?

Baldness

Decreased hematocrit levels

Thinning of the skin

Delay of epiphyseal closure

Ans:

A Feedback: Testosterone enters the cell and reacts with a cytoplasmic receptor site to influence messenger ribonucleic acid (mRNA) activity resulting in the production of proteins for cell structure or function. Testosterone is responsible for both baldness and hair growth. It causes hematocrit to increase and causes thickening of skin and cartilage, which affects the male gait. Also, testosterone stimulates the closure of the epiphyses.

A nurse is teaching a sex education course in a local high school. What statement, made by the nurse, would be accurate regarding the human sexual response?

Humans require endocrine stimuli during a time period called estrus for a sexual response to occur.

Stimulation occurs with massive increases in sensitivity.

Sexual climax occurs from massive sympathetic stimulation.

The period of recovery is initiated with parasympathetic stimulation.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

638

C Feedback: Stimulation in humans occurs with mild increases of sensitivity and the climax occurs from massive sympathetic stimulation. Many animals require an estrous cycle to become stimulated, but that is not true of humans. The period of recovery occurs when the sympathetic stimulation is resolved.

10.

When caring for an older adult patient following surgical castration as part of prostate cancer treatment, the patient asks the nurse what physical changes he can expect because of this surgery. The nurse explains he can expect what?

To maintain his deep voice

To develop a wide and flat pelvis

To lose his facial hair

To begin to grow taller

Ans:

A Feedback: Increased testosterone levels in boys at puberty results in thickening of the skin, a deeper voice, development of facial hair, and closure of the epiphyses. These previously established effects would be maintained by the androgens, which still remain in the body following surgical castration. Development of a wide flat pelvis and loss of facial hair are associated with estrogen’s effects. An older adult male would not grow taller following surgery.

11.

A nurse is teaching a health class for girls at the local high school and explains the primary goal of sex hormones is what?

To develop the body’s reproductive system

To prepare the body for pregnancy

To initiate the body’s change into puberty

To deepen the voice and promote facial hair growth

Ans:

B Feedback:

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639

Each ovum is contained in a storage site called a follicle. The follicles act as endocrine glands producing the hormones estrogen and progesterone. The primary goal of these hormones is to prepare the body for pregnancy and to maintain the pregnancy until delivery. Although secretion of these hormones develops the body’s reproductive system and initiates the change into puberty, these occur to prepare the body for pregnancy, the primary goal of the hormones. Development of facial hair and deepening of the voice is seen in men as a result of testosterone. 12.

The nurse is caring for a patient whose fallopian tubes were damaged by recurrent pelvic infections resulting in complete obstruction of both tubes. The patient asks the nurse, Why can’t I get pregnant? What is the nurse’s best response?

You can get pregnant but the embryo, once fertilized, cannot travel to the uterus to implant and grow.

The blockage of your fallopian tubes prevents the high levels of estrogen and progesterone needed to sustain the pregnancy.

You cannot become pregnant because damage to your fallopian tubes causes ova to stop being released from the ovary.

You cannot become pregnant because sperm cannot travel through the fallopian tubes to fertilize the ova released by the ovary.

Ans:

A Feedback: The sperm travels through the fallopian tube to the ova, released into the abdomen near the end of one of the fallopian tubes. With both fallopian tubes blocked, no passageway exists for sperm to reach the ova. Damage to the fallopian tubes does not impact hormone secretion or ova production. Because the ova are not fertilized, there would be no embryo to travel through the fallopian tubes to implant in the uterus.

13.

As a woman goes through menopause what happens? (Select all that apply.)

Hypothalamus increases production of gonadotropin-releasing hormone (GnRH)

Reversal of primary sex characteristics

Loss of calcium retention in bones

Serum lipid levels increase

Decreased serum levels of follicle-stimulating hormone (FSH) and luteinizing hormone (LH)

Ans:

A, C, D

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

640

Feedback: The follicles contained in the ovary become depleted over time, the ovaries no longer produce estrogen and progesterone, and menopause begins with the cessation of menses. The hypothalamus and pituitary gland produce increased levels of GnRH, FSH, and LH for a while in an attempt to stimulate the ovaries to produce estrogen and progesterone. If that does not happen, the levels of these hormones fall back within a normal range in response to their own negative feedback systems. Menopause is associated with loss of many effects of these two hormones resulting in loss of calcium in the bones, increased serum lipid levels, and maintenance of secondary sex characteristics. Primary sexual characteristics are not impacted. 14.

A school nurse who is teaching a health course at the local high school is presenting information on human development and sexuality. When talking about the role of hormones in sexual development, which hormone does the nurse teach is most important for developing and maintaining the female reproductive organs?

Estrogen

Progesterone

Androgens

Follicle-stimulating hormone

Ans:

A Feedback: Estrogens are responsible for developing and maintaining the female reproductive organs. Progesterone is the most important hormone for conditioning the endometrium in preparation for implantation of the fertilized ovum. Androgens, secreted by the ovaries in small amounts, are involved in the early development of the follicle and affect the female libido. Follicle-stimulating hormone is responsible for stimulating the ovaries to secrete estrogen.

15.

Spermatogenesis occurs in response to what hormone?

Luteinizing hormone (LH)

Gonadotropin-releasing hormone (GnRH)

Follicle-stimulating hormone (FSH)

GfRH

Ans:

C Feedback:

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641

FSH directly stimulates the seminiferous tubules to produce sperm, a process called spermatogenesis. Spermatogenesis does not occur in response to LH or GnRH (options A and B). Option D, GfRH is a distracter for this question. 16.

During their physiology class, the students are learning about the male reproductive system. What naturally occurring substance would the students learn is thought to affect only sperm production?

Estrogen

Testosterone

Gonadotropin-releasing hormone (GnRH)

Inhibin

Ans:

D Feedback: Inhibin has been investigated for many years as a possible male birth control drug, because it is thought to affect only sperm production. Estrogen, testosterone, and GnRH have multiple effects on the body other than just sperm production.

17.

The nurse is teaching students about sexual health and explains that the symptoms of arousal include what? (Select all that apply.)

Increased heart rate

Decreased blood pressure

Sweating

Pupil constriction

Increased blood glucose levels

Ans:

A, C, E Feedback: The sympathetic stimulation that results from sexual stimulation causes increased heart rate, increased blood pressure, sweating, pupil dilation, glycogenolysis (breakdown of stored glycogen to glucose for energy), and other sympathetic responses. Options B and D are distracters.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

18.

642

The nurse who provides holistic care includes sexuality in the plan of care. What patient will need further assessment to determine whether sexual activity will be safe?

The patient with benign prostatic hypertrophy

The patient with cardiovascular disease

The patient who is post-menopausal with vaginal dryness

The patient taking antiviral medications to treat HIV.

Ans:

B Feedback: The stimulation of the sympathetic nervous system that occurs with sexual response could be dangerous in some cardiovascular conditions if they are exacerbated by sympathetic effects, so the patient with cardiovascular disease would require further assessment. Many patients with cardiovascular disease maintain a satisfactory sex life, but each requires careful assessment to determine who might be at risk. The patient with benign prostatic hypertrophy can safely participate in sex if he is capable of obtaining an erection. The post-menopausal woman can use lubricants to reduce dryness and make sexual activity more comfortable. The patient with HIV can have sex safely but will require teaching on actions to take to protect the sex partner from contracting the disease.

19.

The nurse working with obstetric patients understands the role of the placenta includes what?

Endocrine gland

Protection

Production of glucose

Expelling the fetus

Ans:

A Feedback: The uterus is a muscular organ, which can develop a blood-filled inner lining or endometrium, which will support the development of the placenta, which provides nourishment for the developing fetus and acts as an endocrine gland producing the hormones needed to maintain the active metabolic state of the pregnancy. The amniotic sac protects the fetus. Although nutrients are sent to the growing fetus through the placenta, glucose is not produced by the placenta. The muscles in the uterus contract to expel both the fetus and the placenta.

20.

The nurse is caring for a patient scheduled for removal of the testes secondary to cancer. The patient voices concern that he will look like a woman if he doesn’t take testosterone supplementation, which is

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

643

contraindicated by testicular cancer. The nurse explains that he will maintain his masculine traits as the result of what action? A)

Residual testosterone found in muscle cells

Hormones secreted by the penis during arousal

Androgens secreted by the adrenal glands

Supplemental medications taken daily.

Ans:

C Feedback: The androgens released by the adrenal glands are sufficient to sustain male sexual characteristics. Androgens are very similar in structure to testosterone and are able to influence cells to maintain the changes caused by testosterone. No residual testosterone is found in muscle cells, the penis does not secrete hormones, and supplemental medications are not required.

21.

When testosterone enters a cell it reacts with what to influence messenger ribonucleic acid (mRNA) activity?

Cytoplasmic receptor site

Cytoplasmic reticular site

Endoplasmic receptor site

Endoplasmic reticular site

Ans:

A Feedback: Like estrogen, testosterone enters the cell and reacts with a cytoplasmic receptor site to influence mRNA activity, resulting in the production of proteins for cell structure or function.

22.

The nurse is caring for an Olympic athlete who reports she has not had a menstrual cycle for 6 months, ever since she started training for the next Olympic tryout. The nurse suspects the cause of this patient’s amenorrhea is what?

Hypothalamus is not releasing gonadotropin-releasing hormone (GnRH)

Absence of estrogen production

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Increased production of follicle-stimulating hormone (FSH)

Decreased production of progesterone

Ans:

644

Feedback: Enormous amounts of energy are expended in reproduction, and if the body needs energy for other reasons, such as this patient’s tremendous energy output while training, the hypothalamus shuts down the reproductive activities, stopping the release of GnRH, which results in no FSH or luteinizing hormone (LH) release and no stimulation of the follicles. Estrogen and progesterone production are not impacted and FSH production decreases. 23.

The patient asks, Why do I feel so bloated before my menstrual period begins? I am constipated, my breasts are tender, and I’m always hungry. How would the nurse best respond?

This is the result of the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH), hormones to start your period.

This is the result of estrogen release preparing your body to release an ovum.

These are the effects of progesterone, a hormone released to thicken your uterine lining.

This is the result of the secretory endometrium release preparing the body for pregnancy.

Ans:

C Feedback: Increased body temperature, increased appetite, breast tenderness, bloating, abdominal fullness, and constipation result from the effects associated with progesterone, which is released into the system when the follicle ruptures. These symptoms are not related to FSH and LH. Estrogen may cause mild bloating and water retention, but the more significant symptoms reported by this patient in conjunction with other symptoms is not caused by estrogen. Secretory endometrium causes production of glucose and other nutrients to nurture a growing embryo and does not produce the reported symptoms.

24.

Because of the effects of estrogen during the first 14 days of a woman’s menstrual cycle, a woman is at higher risk for what?

Emotional outbursts

Broken bones

Pregnancy

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Infection

Ans:

645

Feedback: The woman may notice many effects of estrogen, such as breast tenderness and water retention. In addition, estrogen thins cervical mucosa and increases susceptibility to infections. Generally, it is the last 14 days of a woman’s cycle when she is most at risk for emotional outbursts. A woman’s menstrual cycle does not make her more at risk for broken bones. The first 14 days of a woman’s menstrual cycle do not make her more at risk to become pregnant. 25.

What factor might influence the hypothalamus to release the hormones necessary for the human reproductive cycle?

Light

Heat

Cold

Humidity

Ans:

A Feedback: Light has been found to have an influence on the functioning of the hypothalamus. Increased light levels boost the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) and increase the release of estrogen and progesterone. Heat, cold, and humidity have not been shown to play a role in human reproduction unless temperature extremes occur and increase stress significantly.

26.

The nurse reviews the patient’s laboratory results and finds the level of Gonadotropin-releasing hormone (GnRH) has increased significantly since yesterday. When assessing this patient, what will the nurse expect to find?

The patient is pregnant.

The patient’s menses have begun.

The patient is ovulating.

The patient is preparing to deliver.

Ans:

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646

Feedback: The dropping levels of estrogen and progesterone trigger the release of Gonadotropin-releasing hormone (GnRH) and then follicle-stimulating hormone (FSH) and luteinizing hormone (LH) again, along with the start of another menstrual cycle. Lowered hormone levels cause the inner lining of the uterus to slough off because it is no longer stimulated by the hormones, demonstrated by the beginning of menses. The patient is not pregnant or ovulating at the start of another menstrual cycle nor is she preparing to deliver a baby. 27.

What external factor has been found to have a negative impact on the reproductive cycle related to the controls of the hypothalamus? (Select all that apply.)

Starvation

Extreme temperatures

Social/cultural expectations

Emotional problems

Extreme exercise

Ans:

A, D, E Feedback: In addition to stress, starvation, extreme exercise, and emotional problems are all associated with a decrease in reproductivity related to the controls of the hypothalamus. Extreme temperatures and social/cultural expectations have not been found to have a negative impact on the reproductive cycle relative to the hypothalamus.

28.

Progesterone is released into the bloodstream of a female when her developing follicle ruptures. What physiologic effect might the woman experience related to the release of progesterone into the woman’s body? (Select all that apply.)

Diarrhea

Abdominal fullness

Increased appetite

Breast atrophy

Bloating

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

647

B, C, E Feedback: The woman experiences increased body temperature, increased appetite, breast tenderness, bloating and abdominal fullness, constipation, among other symptomsthe effects associated with progesterone, which is released into the system when the follicle ruptures. Breast atrophy is an effect of estrogen; diarrhea is not related to progesterone.

29.

As the lining of the uterus sloughs away, clotting at the site of the separating blood vessels in the uterus is prevented by the presence of what chemical?

Plasminogen

Fibrinolysis

Luteinizing hormone (LH)

Follicle-stimulating hormone (FSH)

Ans:

A Feedback: High levels of plasminogen in the uterus prevent clotting of the lining as the vessels shear off. Fibrinolysis, LH, and FSH do not contribute to clot prevention.

30.

The nurse expects the level of what chemical to increase to stimulate uterine contraction and the onset of labor?

Follicle-stimulating hormone (FSH)

Progesterone

Estrogen

Prostaglandins

Ans:

D Feedback: Local prostaglandins are released stimulating the uterus to contract and the onset of labor begins. High levels of estrogen and progesterone support the uterus and block uterine contractions. FSH is not responsible for the onset of labor.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

31.

648

The nurse is caring for a woman who went through menopause 5 years earlier. The nursing plan of care for this patient includes teaching related to the importance of what dietary change?

Increased intake of fatty foods to maintain lipid levels

Reduced caloric intake because of lower activity levels

Increased calcium intake to reduce calcium loss in bones

Increased fluid intake to prevent dehydration from increased urination

Ans:

C Feedback: Estrogen and progesterone levels are reduced in menopause resulting in loss of protective mechanisms provided by these hormones. The patient requires extra calcium intake to prevent osteoporosis caused by loss of calcium in the bones. Serum lipid levels rise after menopause, thus putting the woman at increased risk of heart disease so the patient should be taught to limit fat intake. Post-menopausal women’s activity levels do not need to decline and they may be as active as they wish to be. No need exists for increased fluid intake secondary to menopause.

32.

The parents of an infant boy have been told surgery is needed because their son’s testes have not descended into the scrotal sac. The father asks the nurse, What would happen if the testes remained in the lower abdomen? What is the nurse’s best response?

The testes need to be placed in the scrotum to protect sperm-producing cells from body heat.

If the testes remain in the abdomen, it would help to protect them from accidental trauma.

Leaving the testes in the abdomen would damage their ability to produce testosterone.

The risks associated with surgery are greater than the risks associated with leaving the testes in the abdomen.

Ans:

A Feedback: During fetal development, the two testes migrate down the abdomen and descend into the scrotum outside the body where they are protected from the heat of the body to prevent injury to the spermproducing cells. Leaving them in the abdomen would not protect them, testosterone production would not be impacted, and the risk to sperm production is far greater than surgical risks.

33.

The nurse is teaching adolescent boys about their reproductive organs using a model of the system. One

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649

of the boys asks, Where is sperm made? What is the nurse’s best response? A)

Seminiferous tubules

Interstitial cells

Leydig cells

Vas deferens

Ans:

A Feedback: The testes are made up of two distinct parts: the seminiferous tubules, which produce the sperm, and the interstitial or Leydig cells, which produce the hormone testosterone. Other components include the vas deferens, which stores produced sperm and carries sperm from the testes to be ejaculated from the body.

34.

The nurse is caring for an adolescent boy who is suspected of taking supplemental testosterone to improve his performance as a wrestler. What assessment findings would support this suspicion? (Select all that apply.)

Excessive hair growth on face and body

Enlarged muscular development

Reduced hematocrit levels

Growth of testes and scrotal sac

Increased thickening of the skin

Ans:

A, B, D, E Feedback: Testosterone is responsible for hair growth on the body and face, muscle development, increased hematocrit levels, growth of testes and scrotal sac, and increased thickening of the skin. Option C is a distracter.

35.

The nurse is talking with a woman about menopause when the woman turns to her husband and says, You’re so lucky not to have to go through anything like this! What is the nurse’s best response? Men go through something called andropause when less testosterone is produced.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Men are fortunate to maintain the same hormone levels throughout their life.

With age, sexual function declines but that is not due to hormonal changes in men.

The ability to obtain and maintain an erection will decline with age.

Ans:

650

Feedback: With age, the seminiferous tubules and interstitial cells atrophy and the male climacteric or andropause, a period of lessened sexual activity and loss of testosterone effects, occurs. This indicates a decline in hormone levels in men similar to what women experience. Sexual function and the ability to obtain and maintain an erection do not occur in all men, but usually is most often seen in those with problems such as hypertension, diabetes, and heart disease. Healthy men who make healthy lifestyle choices can maintain sexual activity well into their senior years.

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651

Chapter 40 - Drugs Affecting the Female Reproductive System

The nurse is caring for a female patient who would like to start taking oral contraceptives. What assessment finding may indicate the patient is not a good candidate for these drugs?

Decreased appetite

Dehydration

Occasional headaches

History of deep vein thrombosis

Ans:

D Feedback: Estrogens are contraindicated in the presence of a history of thromboembolic disorders because of the increased risk of thrombus and embolus development. A loss of appetite would not contraindicate oral contraceptives but would require further assessment to determine the cause. Dehydration would require fluid administration to correct but is not a contraindication to oral contraceptives. Occasional headaches are not uncommon and would not contraindicate contraceptive use.

The nurse is caring for a patient with an intact uterus who requests hormone replacement for short-term use to reduce menopausal symptoms. What combination drug would be appropriate for this patient?

Estrace

Premphase

Premarin

Estratab

Ans:

B Feedback: The patient would be given Premphase because it is a combination of estrogen and progesterone. The combination is important to help avoid risk of endometrial hyperplasia. Estrace, Premarin, and Estratab contain only estrogen so they are not combination drugs.

The nurse is caring for a patient who just had subdermal implantation of NuvaRing. As part of drug teaching, the nurse will tell the patient this implant needs to be removed when?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

3 months

6 months

1 year

3 years

Ans:

652

Feedback: Etonogestrel, in addition to being available as a vaginal ring, NuvaRing, is available as a subdermal implant that may be left in place for up to 3 years and then must be removed. Another implant could be placed at that time. 4.

A patient tells the nurse she is taking soy, calcium, and a multivitamin as an alternative to taking hormone replacement pills. What is the nurse’s priority response?

Increase her iron supplement.

Discontinue her calcium supplement.

Decrease the amount of carbohydrates in her diet.

Increase calcium supplementation.

Ans:

B Feedback: The nurse may advise the patient to stop using a calcium supplement because soy is not to be taken with calcium, iron, or zinc. However, the patient may have to decide whether it would be more beneficial for her to continue the calcium and discontinue the soy if osteoporosis is a concern. Decreasing carbohydrates is a healthy choice, especially for a menopausal woman, but would not be the priority concern.

A patient with a seizure disorder taking phenytoin (Dilantin) requests a prescription for an oral contraceptive. What is the nurse’s priority response?

The effect of oral contraceptives containing progestin is reduced by phenytoin.

The effect of oral contraceptives containing progestin and estrogen is reduced by phenytoin.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The effect of oral contraceptives containing estrogen is reduced by phenytoin.

You will need to increase the dosage of your phenytoin once you start contraceptives.

Ans:

653

Feedback: The effectiveness of oral contraceptives containing estrogen, progestin, or both will be reduced by phenytoin, so contraceptives will not be adequate to prevent pregnancy. There is no reason to change the dosage of phenytoin. 6.

A patient is using a progestin vaginal gel. What possible adverse effects should the nurse tell the patient about?

Diarrhea

Breast enlargement

Abdominal pain

Local skin irritation

Ans:

B Feedback: The use of a progestin vaginal gel is associated with breast enlargement. Constipation, not diarrhea, is also an adverse effect. Abdominal pain with progestin therapy is associated with the use of an intrauterine device for birth control, not a vaginal gel. Local skin irritation can result from use of a dermal patch contraceptive.

The nurse is preparing to administer an infusion of oxytocin (Pitocin) to the pregnant patient. What is the priority assessment before beginning the infusion?

Cervical dilation

Cephalopelvic proportions

Electrocardiogram readings

Respiratory excursion

Ans:

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654

Feedback: Pitocin is used to stimulate labor and often results in intense uterine contractions. It is important that the nurse assess cephalopelvic proportions because a disproportion between the size of the baby and the size of the fetus could result in serious complications. Dilation may be well underway when oxytocin is started or may need to be initiated so this is not a priority assessment, although it would certainly be assessed. Respiratory excursion is expected to be limited in pregnant women because of the enlarged uterus pushing up on the diaphragm. Electrocardiogram readings should not be needed with most pregnant women unless the woman has a preexisting condition. 8.

A nurse is taking care of a woman receiving an abortifacient. The nurse is aware that the most serious adverse effect is what?

Vomiting

Nausea

Uterine rupture

Diarrhea

Ans:

C Feedback: All these options are adverse effects of abortifacients. However, the most serious adverse effect would be uterine rupture. A perforated uterus or uterine rupture can be life threatening and emergency measures must be taken.

A 13-year-old teenage girl is started on oral contraceptives. When following this girl in the clinic, what is the nurse’s priority assessment?

Closure of the epiphyses

Menstrual patterns

Nutrition

Cognitive development

Ans:

B Feedback: A 13-year-old girl is still growing. Estrogens and progestins have undergone limited testing in children. Because of their effects on closure of the epiphyses, they should be used only with great caution in

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655

growing children. It is important for the nurse to monitor metabolic and other effects as well. Menstrual patterns, nutrition, and cognitive development are all components of care of the adolescent, but they are not the priority consideration. 10.

A patient is in the clinic for a follow-up visit after having been on hormone replacement therapy for 3 months. Which report by the patient would immediately concern the nurse?

Smoking a pack of cigarettes a day

Gaining 10 pounds in the last 3 months

Craving sugar

Spending less time exercising

Ans:

A Feedback: All these options are poor health habits and will impact the patient’s health. However, the immediate concern is smoking. The nurse should stress that women who take estrogen should not smoke because of the increased risk for thrombotic events. A weight gain of 10 pounds, a craving for sugar, and a decrease in exercise would not be as immediate a concern although the nurse should address these issues.

11.

The patient asks the nurse, Why can’t I smoke when taking estrogen. Is the risk for blood clots really that high? What is the nurse’s best response?

The risk is truly that high because estrogen increases serum triglyceride, cholesterol, and glucose levels.

The risk is high because estrogen stimulates skeletal growth, causing increased production of red blood cells (RBCs).

The risk is pretty high because estrogen decreases blood levels of several clotting factors.

There is documented high risk because estrogen combined with nicotine creates a significant drugdrug interaction.

Ans:

D Feedback: Smoking while taking estrogens should be strongly discouraged, because the combination of therapeutic estrogen with nicotine increases the risk for development of thrombi and emboli and this risk is well documented and researched. The risk is not due to skeletal growth, decreased clotting factors, or an impact on triglycerides, cholesterol, or glucose.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

12.

656

The nurse is caring for a 33-year-old mother of two who has a history of asthma and migraine headaches. The patient is on a low-residue diet for colitis. What factor in the patient’s history may contraindicate the use of birth control pills?

Migraine headaches

Age

Asthma

Colitis

Ans:

A Feedback: Progestins should be used with caution in patients with epilepsy, migraine headaches, asthma, or cardiac or renal dysfunction because of the potential exacerbation of these conditions. Age, asthma, and colitis would not be cautions or contraindications for the use of oral contraceptives.

13.

The nurse is caring for a postmenopausal patient taking estradiol (Estrace) to reduce signs and symptoms of menopause. What other benefit will result from this medication?

Reduced risk of endometriosis

Reduced risk of dysfunctional uterine bleeding

Reduced risk of osteoporosis

Reduced risk of uterine cancer

Ans:

C Feedback: Estrogen slows the bone loss seen with osteoporosis so this will be an added benefit of the drug. Observe for improved bone density tests and absence of fractures. Endometriosis and dysfunctional uterine bleeding do not occur in postmenopausal women who no longer menstruate. Estrogen does not prevent uterine cancer and screening for cancer should be performed before prescribing this drug.

14.

The nurse has been conducting patient teaching for a 16-year-old who is starting oral contraception. What statement indicates that she needs additional teaching? I will monitor my weight and have my blood pressure checked monthly.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

I will see my woman’s health provider and have a Pap smear done on a yearly basis.

If I forget to take my pill for 2 consecutive days I will take three pills to catch up.

I will take the pill every day at the same time and never miss a pill.

Ans:

657

Feedback: If one tablet is missed, take it as soon as possible or take two tablets the next day. If two consecutive tablets are missed, take two tablets daily for the next 2 days; then resume the regular schedule. If three consecutive tablets are missed, begin a new cycle of tablets 7 days after the last tablet was taken, and use an additional method of birth control until the start of the next menstrual period. The other statements are accurate and denote the patient understood the nurse’s teaching. 15.

The patient comes to the women’s health clinic to ask about emergency contraception. The patient is prescribed levonorgestrel (Plan B). How will the nurse instruct the patient to take this medication?

Take one tablet within 4 days of unprotected intercourse.

Take one tablet within 72 hours of unprotected intercourse and another 12 hours later.

Take one tablet within 5 days of unprotected intercourse.

Take one tablet within 72 hours of unprotected intercourse and another daily for 5 days.

Ans:

B Feedback: Levonorgestrel (Plan B) is taken within 72 hours of unprotected intercourse with another tablet taken 12 hours after the first. Levonorgestrel (Plan B One-Step) is taken once within 72 hours after unprotected intercourse and is available OTC for patients 17 years and older. Ulipristal (Ella) is taken once within 5 days of unprotected intercourse.

16.

The nurse is caring for a patient taking raloxifene. What manifestation reported by the patient would raise the highest level of concern from the nurse?

Headache

Weight loss

Calf pain

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Edema

Ans:

658

Feedback: The highest level of concern would be calf pain because it could indicate a possible venous thrombosis that has the potential to be life threatening. Raloxifene has been associated with GI upset, nausea, and vomiting. Changes in fluid balance may also cause headache, dizziness, visual changes, and mental changes. Hot flashes, skin rash, edema, and vaginal bleeding may occur secondary to specific estrogen receptor stimulation. However, these are not symptoms. 17.

An adolescent patient asks the nurse, What should I do if I forget to take my birth control pill? What should the nurse reply?

Abstain from intercourse for 7 days.

It’s okay to miss a day or two, as long as you don’t go over 5 days.

Just wait until your next dose, then take double the dose.

Take the dose as soon as you discover your oversight.

Ans:

D Feedback: A missed pill should be taken as soon as the error is noticed. Telling the patient to abstain from intercourse would be inappropriate but if the patient misses three tablets they should use another form of birth control until the next cycle of pills is started. It is not okay to miss a dose and the highest protection is provided when the pill is taken daily without missing a dose. The sooner the missed dose is taken the better contraceptive protection provided, so patients should not wait until the next dose and then double it.

18.

The nurse is caring for a patient who is extremely agitated about finding out she is pregnant and wants to take an abortifacient that will have the fastest possible action. What drug will the nurse expect to be ordered?

Mifepristone

Carboprost

Prostin 15

Bepridil

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

659

B Feedback: Carboprost is available as an intramuscular injection with an onset of 15 minutes and a 2-hour duration of effect. Mifepristone takes 5 to 7 days to produce the desired effect so would not be appropriate for this patient. Prostin 15 is only available in Europe. Bepridil is a calcium channel blocker and would not be used as an abortifacient.

19.

The nurse, working in a women’s health center, is reviewing the patient’s medical record and recognizes the patient with what medical history should not receive an abortifacient? (Select all that apply.)

Active pelvic inflammatory disease (PID)

Pulmonary disease

Cardiovascular disease

Hypertension

Adrenal disease

Ans:

A, B, C Feedback: Abortifacients should not be used with active PID or acute cardiovascular, hepatic, renal, or pulmonary disease. Caution should be used with any history of asthma, hypertension, or adrenal disease.

20.

The nurse is developing a nursing plan of care for a patient who will receive a fast-acting abortifacient. What nursing diagnosis would apply to care provided shortly after administering the medication?

Acute pain related to uterine contractions or headache

Ineffective coping related to abortion or fetal death

Risk for fluid volume deficit related to blood loss, diarrhea, and diaphoresis

Deficient knowledge regarding drug therapy.

Ans:

A Feedback:

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660

The rapid-acting abortifacients work within 10 to 15 minutes , so shortly after administration of the drug, the patient will begin to have acute abdominal pain. Only after uterine contents are evacuated would the risk for fluid volume imbalance occur. Deficient knowledge regarding drug therapy should have been addressed before administering the medication. Ineffective coping usually occurs after acute symptoms subside and the patient begins to cope with the decision. 21.

The nurse is preparing to give a patient an injection of carboprost. What is the nurse’s priority action before administering the drug?

Explain the ethical indications of the drug.

Assess for contraindications or cautions.

Verify that the woman thoroughly understands what will happen.

Draw up the medication and inject within 5 minutes.

Ans:

C Feedback: Carboprost is an abortifacient and it is important that the woman understand what will happen after the drug is taken and that she cannot change her mind. Contraindications and cautions should have been checked before the drug was prescribed. It is not the nurse’s place to share ethical beliefs with the patient. After the patient’s understanding is verified, the drug can be prepared.

22.

The nurse is caring for a woman with a new prescription for oral contraceptives. What outcome would be most important for the nurse to evaluate?

The patient can demonstrate how to inject the medication.

The patient can explain how medication will prevent sexually transmitted infections.

The patient can verbalize how and when to take medication even if a pill is missed.

The patient makes the necessary appointments for follow-up care.

Ans:

C Feedback: It is most important for the nurse to evaluate the patient’s understanding of how to take the medication properly, including how to respond when a pill is missed. The patient need not learn how to inject the medication because the prescription is of an oral medication. Oral contraceptives will not prevent sexually transmitted infections. Although making follow-up appointments is good, it is more important that the patient know how to take the medication.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

23.

661

When caring for a patient on estrogen therapy, what is the nurse’s priority assessment?

Blood sugar levels

Bowel sounds

Weight

Therapeutic and adverse drug effects

Ans:

D Feedback: Perform a physical assessment to establish a baseline status before beginning therapy and during therapy to determine the effectiveness of therapy and evaluate for any potential adverse effects. Bowel sounds, weight, and blood sugar may be part of the assessment, but it is most important to assess for therapeutic and adverse effects of the medication.

24.

What is the priority assessment for the 23-year-old female patient who is on estrogen therapy?

Monitor liver function periodically for the patient on long-term therapy.

Assess for contraindications to drug therapy.

Help plan a diet rich in calcium and vitamin D.

Provide patient teaching for diet therapy to prevent osteomyelitis.

Ans:

A Feedback: Assessing liver function is important for the patient on long-term estrogen therapy. Teaching is an intervention and not an assessment. The patient should be assessed for contraindications before administering the medication initially.

25.

The nurse assesses the postpartum patient who has been receiving ergonovine and suspects ergotism when what manifestations are found? (Select all that apply.)

Weak pulse

Dyspnea

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Numb cold extremities

Chest pain

Postpartum hemorrhage

Ans:

A, B, C, D

662

Feedback: Ergonovine and methylergonovine can produce ergotism, manifested by nausea, blood pressure changes, weak pulse, dyspnea, chest pain, numbness and coldness in extremities, confusion, excitement, delirium, convulsions, and even coma. Postpartum hemorrhage can occur as an adverse effect of ergonovine but is not a manifestation of ergotism. 26.

A couple comes to the fertility clinic for help in getting pregnant and the nurse administers menotropin to the male partner. How does this classification of drug work?

Stimulates endogenous estrogen

Stimulates follicle development

Stimulates spermatogenesis

Blocks the secretion of testosterone

Ans:

C Feedback: Menotropins stimulate spermatogenesis in men with low sperm counts and otherwise normally functioning testes. Options A, B, and D are not correct.

27.

When the nurse administers an endogenous estrogen, what systemic effects does the nurse expect the drug will have?

Causes proliferation of endometrial lining

Provides protection of heart from atherosclerosis

Retains calcium in the bloodstream

Inhibits ovulation

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

663

B Feedback: Estrogens produce a wide variety of systemic effects, including protecting the heart from atherosclerosis, retaining calcium in the bones, not the bloodstream, and maintaining the secondary female sex characteristics. Proliferation of endometrial lining and inhibiting ovulation are effects of estrogen but are not systemic effects.

28.

The nurse is talking with a menopausal woman about the use of hormone replacement therapy (HRT). What statement, if made by the nurse, would be accurate and appropriate to share with the patient?

Symptoms of menopause are short-term and minor so HRT is not necessary.

The newer drugs used in HRT cause cardiovascular events even when taken short-term.

The risk for osteoporosis is much higher in women who take HRT.

There is a possible increased risk of breast and cervical cancer when taking HRT.

Ans:

D Feedback: The use of HRT can decrease the discomforts associated with menopause, although various forms of HRT have been associated with increased risks of breast and cervical cancer, heart disease, and stroke. The newer drugs used in HRT have been shown to be associated with only a possible increase in risk of breast and cervical cancer, but with long-term use, they are associated with an increased risk of cardiovascular events. The risk for osteoporosis declines with HRT because of the bone saving effects of the drugs. It would be inappropriate and judgmental for the nurse to say symptoms of menopause are minor because some women experience more severe symptoms that can negatively impact their day-today life.

29.

The nurse is caring for an infertile couple who will take chorionic gonadotropin to become pregnant. How would the nurse describe the actions of this drug?

Affecting follicle-stimulating hormone (FSH) and luteinizing hormone (LH) release

Stimulating follicular development

Stimulating maturation of ova

Stimulating multiple follicle development

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

664

Feedback: Chorionic gonadotropin is used to stimulate ovulation by acting like gonadotropin-releasing hormone (GnRH) and affecting FSH and LH release. It does not stimulate follicular development, maturation of the ova, or multiple follicle development. 30.

The nurse would question the use of what herbal supplement by a patient taking hormone replacement therapy (HRT) containing progesterone?

Dong quai

Devil’s claw

Wild yam

Black cohosh

Ans:

C Feedback: Wild yam contains progesterone. Do not use with hormone replacement therapy, because it may cause increased blood glucose and other toxic effects, and do not combine with disulfiram or metronidazolesevere reaction may occur. Dong quai, devil’s claw, and black cohosh are not contraindicated with HRT.

31.

When the nurse learns the male patient takes conjugated estrogens, the nurse questions the patient about what disorder?

Prostate cancer

Breast cancer

Osteoporosis

Andropause

Ans:

A Feedback: Conjugated estrogen is most commonly taken by men to treat prostate cancer because the estrogen competes with testosterone for binding sites. Although men do get breast cancer and osteoporosis, they would not be treated with estrogen for these disorders. Andropause is caused by a reduction in testosterone so they would get a male hormone replacement and not estrogen.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

32.

665

The nurse is preparing to administer clomiphene to the female patient. What dosage would the nurse find is within usual dosage range?

100 mg

10 mg

1 mg

0.1 mg

Ans:

A Feedback: The usual dosage range for clomiphene is 50 to 100 mg/d PO with length of therapy and timing dependent on the particular situation. Options B, C, and D are not correct.

33.

The nurse is providing patient teaching for a woman who will begin receiving Depo-Provera injections. When will the nurse schedule the appointment for the next injection?

1 month from last injection

3 months from last injection

6 months from last injection

12 months from last injection

Ans:

B Feedback: Depo-Provera is administered by deep intramuscular (IM) injection every 3 months. Options A, C, and D are not correct.

34.

The patient calls the clinic and says she just started oral contraceptives last month and is experiencing breakthrough bleeding, fluid retention resulting in edema, changes in libido, and palpitations. What symptom would the nurse recognize is not an adverse effect of the oral contraceptive and requires an appointment as soon as possible so the patient can be evaluated?

Breakthrough bleeding

Fluid retention

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Changes in libido

Palpitations

Ans:

666

Feedback: Palpitations are not commonly associated with contraceptives and so the patient would need to be seen and evaluated. The most common adverse effects of estrogens include breakthrough bleeding, menstrual irregularities, dysmenorrhea, amenorrhea, and changes in libido. Other adverse effects can result from the systemic effects of estrogens, including fluid retention, electrolyte disturbances, headache, dizziness, mental changes, weight changes, and edema. GI effects also are fairly common and include nausea, vomiting, abdominal cramps and bloating, and colitis. Potentially serious GI effects, including acute pancreatitis, cholestatic jaundice, and hepatic adenoma, have been reported with the use of estrogens. 35.

The patient calls to report perineal pain and breast enlargement. What medication does the nurse expect to find the patient is taking on reviewing the medical record?

Desogestrel

Drospirenone

Progesterone

Norethindrone

Ans:

C Feedback: Perineal pain and breast enlargement results from vaginal gel formulas, so the nurse would suspect the patient is receiving progesterone because this is the only progestin administered by this method. The other options are all oral medications that would not cause perineal pain or breast enlargement.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

667

Chapter 41 - Drugs Affecting the Male Reproductive System

A nurse is caring for an adolescent with hypogonadism who has been prescribed fluoxymesterone (Androxy) for replacement. What adverse effect of this drug will the nurse alert the patient to that could result in self-esteem concerns?

Acne

Dizziness

Insomnia

Fatigue

Ans:

A Feedback: All these options are possible adverse effects of the drug. However, for the adolescent, acne is the only one that could cause image concerns, which could lead to low self-esteem. Dizziness, insomnia, and fatigue would not cause self-esteem concerns.

A postmenopausal patient has been diagnosed with breast cancer. The patient is being treated with methyltestosterone (Testred). What assessment finding would the nurse suspect is a complication from the medication?

Increased blood pressure

Jaundice

Weight loss

High-pitched voice

Ans:

B Feedback: A potentially life-threatening effect of an androgen is hepatocellular cancer. Jaundice would indicate that the liver function has been compromised. Usually weight gain and deepening of the voice are adverse effects of this drug. An increase in blood pressure is not associated with methyltestosterone.

The nurse administers an androgen and assesses the patient for what action caused by this drug?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Decreased production of red blood cells

Decreased protein anabolism

Increased protein catabolism

Increased retention of nitrogen

Ans:

668

Feedback: Androgens act to increase the retention of nitrogen, sodium, potassium, and phosphorous. They increase production of red blood cells and protein anabolism and decrease protein catabolism. 4.

An older male patient, who has difficulty swallowing pills and tablets, will begin taking an androgen. What drug would the nurse identify as a good choice for this patient?

Danazol (Danocrine)

Fluoxymesterone (Androxy)

Methyltestosterone (Testred)

Testosterone (Androderm)

Ans:

D Feedback: A good choice for this patient would be testosterone because the drug can be administered in longacting depository forms and by dermatologic patch. These forms would eliminate the need for the patient to swallow a pill or tablet. The other options shown here are available only in oral form.

A 28-year-old female patient is taking danazol (Danocrine) as treatment for endometriosis. The patient is upset about increased facial hair, a weight gain of 15 pounds, and a change in her voice; she discusses her concerns with the nurse. What nursing diagnoses would be most appropriate for this patient?

Acute pain related to need for injections

Deficient knowledge regarding drug therapy

Disturbed body image related to drug therapy

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Sexual dysfunction related to androgenic effects

Ans:

669

Feedback: The patient is concerned about the way she looks and the sound of her voice. The most appropriate nursing diagnosis would be disturbed body image. Danazol is not administered by injections; therefore, acute pain would not be applicable. Sexual dysfunction and deficient knowledge would be possible nursing diagnoses for this patient, but the concerns expressed by the patient fail to support these diagnoses. 6.

A child in renal failure is taking androgens to promote red blood cell production and is seen in the clinic every other month. What adverse drug effect would the nurse monitor for with this child?

Epiphyseal closure

Acne

Skin color

Weight gain

Ans:

A Feedback: Because of the effects of androgens on epiphyseal closure, children should be closely monitored with hand and wrist radiographs before treatment and every 6 months after treatment. The other options are also adverse effects and require monitoring but are not as serious as premature epiphyseal closure.

A patient has high blood pressure and penile erectile dysfunction. He asks the nurse if he could try tadalafil (Cialis) after seeing an advertisement on television. What medications, if taken by the patient, would the nurse recognize as increasing the risk associated with taking tadalafil?

Beta-blockers

Angiotensin-converting enzyme (ACE) inhibitors

Alpha-adrenergic blockers

Calcium channel blockers

Ans:

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670

Feedback: Serious drops in blood pressure, leading to potentially fatal myocardial infarction or cerebrovascular event, have been reported when Cialis is combined with alpha-adrenergic blockers. This reaction has not been reported with beta-blockers, calcium channel blockers, or ACE inhibitors. 8.

A patient will begin taking sildenafil (Viagra) for penile erectile dysfunction (ED). What is the nurse’s priority teaching point about this drug?

He will have an erection exactly 1 hour after taking the drug.

The drug should not be taken with a penile implant or any anatomic penile obstruction.

Avoid drinking grapefruit juice for 2 days before and after taking the drug.

It is important to know the cause of ED because sildenafil does not treat all causes.

Ans:

C Feedback: Patients who are using sildenafil need to be advised to avoid drinking grapefruit juice while using the drug. Grapefruit juice can cause a decrease in the metabolism of the PDE5 inhibitor, leading to increased serum levels and a risk of toxicity. They need to know that it takes 48 hours for grapefruit juice to be processed by the body, so they need to avoid it for several days before and after taking the drug. The patient should be screened for penile implants, anatomic penile obstruction, and the cause of ED before the drug is prescribed. Sildenafil has a median onset of 27 minutes and duration of 4 hours so the patient may have an erection as early as 27 minutes after taking it.

A patient is prescribed oxymetholone (Anadrol-50) for treatment of angioedema. The nurse knows the patient has type 2 diabetes and will instruct the patient that the combination of oxymetholone with antidiabetic agents may lead to what?

Hyperglycemia

Hypoglycemia

Jaundice

Urinary retention

Ans:

B Feedback: Because of its effects on the liver, oxymetholone (Anadrol-50) may interact with antidiabetic agents to

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671

decrease their metabolism and increase their effectiveness, leading to hypoglycemia. The dosage of the antidiabetic agents should be reduced and the patient monitored closely. It would not lead to hyperglycemia, jaundice, and urinary retention. 10.

A student athlete presents at the clinic for his physical checkup. The athlete tells the nurse that he is using large doses of creatine to increase muscle size and strength. What should the nurse instruct the student to do while taking this medication?

Take nonsteroidal anti-inflammatory drugs (NSAIDs) to stop pain from expanding muscles.

Drink plenty of fluids while using this drug and watch for swelling.

Stop eating red meat or other animal products.

Take cimetidine (Tagamet) to relieve the stomach upset associated with the use of this therapy.

Ans:

B Feedback: Creatine is a protein by-product that has to be processed through the kidneys. If an athlete is using it to try to increase muscle size, he should be advised to drink plenty of fluids to help flush it through the kidney and to watch for any swelling that could indicate change in renal function. NSAIDs could aggravate renal problems and cause more swelling. Getting protein from food sources is a natural way to provide the body with proteins. If stomach upset occurs, the athlete should stop using the herbal therapy and not add another drug to his regimen, especially cimetidine that can increase risk of kidney damage.

11.

A 9-year-old boy is taking testosterone injections for treatment of hypogonadism. What should be measured every 6 months on this child?

Liver function test (LFT)

Cholesterol level

Vision

Hand and wrist radiographs

Ans:

D Feedback: Because of the effects of these hormones on epiphyseal closure, children should be closely monitored with hand and wrist radiographs before treatment and every 6 months after treatment. It would not be necessary to measure LFTs, cholesterol levels, or the child’s vision.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

12.

672

The nurse assesses the patient taking anabolic steroids for what serious adverse effects?

Elevated blood urea nitrogen (BUN)

Elevated blood glucose level

Bradycardia

Jaundice

Ans:

D Feedback: Anabolic steroids all have black box warnings as alerts to the potentially serious effects of liver tumors, hepatitis, and blood lipid level changes that might be associated with increased risk of coronary artery disease. As a result, the nurse should assess for jaundice that could be an early indication of liver dysfunction. Elevated BUN, blood glucose levels, and bradycardia are not commonly reported adverse effects.

13.

What therapeutic effect will the nurse assess for in the male patient taking anabolic steroids?

Thinning of the skin

Body hair loss

Increase in red blood cells (RBCs) and hemoglobin

Gynecomastia

Ans:

C Feedback: Therapeutic effects include promotion of body tissue-building processes, reverse catabolic or tissuedestroying processes, and increased hemoglobin and red blood cell mass. Thinning of the skin and body hair loss are not associated effects of anabolic steroids. Gynecomastia is an adverse effect and would not be a therapeutic effect for which the drug was administered.

14.

An woman is prescribed androgens. The nurse teaches the patient to anticipate what effect from the drug? Atrophy of breasts

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Rapid bone growth

Loss of pubic hair

Nervousness

Ans:

673

Feedback: Antiestrogen effectsflushing, sweating, vaginitis, nervousness, and emotional labilitycan be anticipated when these drugs are used in women. When androgens are administered to women you would not expect the results to include atrophy of the breasts, rapid bone growth, or loss of pubic hair. 15.

The nurse is caring for a patient who has been taking androgens and has been admitted to the ICU following a car accident. What lab results will the nurse interpret as more indicative of androgen therapy than actual disease states? (Select all that apply.)

Decreased thyroid function

Increased creatinine levels

Increased creatinine clearance

Elevated liver enzymes

Increased white blood cell (WBC) count

Ans:

A, B, C Feedback: While a patient is taking androgens, thyroid function may be decreased, as well as increased creatinine and creatinine clearance, results that are not associated with disease states. These effects can last up to 2 weeks after the discontinuation of therapy. Elevated liver enzymes may indicate a potentially lifethreatening effect that has been documented is hepatocellular cancer. Increased WBC count would indicate an infection. Increased liver enzymes and WBC are not associated with androgen therapy but instead indicate a disease state.

16.

The 63-year-old male patient receives a prescription for androgens. The nurse evaluates that the patient understood drug teaching when he makes what statement?

If I experience acne, I will contact my physician immediately.

If I experience flushing, sweating, nervousness, or emotional lability I’ll know it’s the drug.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

I will report any difficulty urinating such as trouble starting my flow.

These pills may make my skin turn yellow but it will go away when the drug is stopped.

Ans:

674

Feedback: Benign prostatic hypertrophy, a common problem in older men, may be aggravated by androgenic effects that may enlarge the prostate further, leading to urinary difficulties and increased risk of prostate cancer. Nurses should teach these men the signs and symptoms of prostatic enlargement and the importance of reporting these manifestations immediately to prevent worsening of symptoms. Acne need not be reported immediately. Flushing, sweating, nervousness, and emotional lability are more usually experienced by women. Yellowing of the skin may be an indication of liver disease, which should be reported immediately. 17.

A female athlete is using high doses of anabolic steroids to enhance her performance. The nurse warns this patient that such use of anabolic steroids is likely to result in what?

Masculinization

Immobility of joints

Obesity

Hypotension

Ans:

A Feedback: Adverse effects in women include masculinization effects, hirsutism, and deepening of the voice. A woman using anabolic steroids would not expect it to result in joint immobility, obesity, or hypotension.

18.

The nurse attributes what assessment finding to the use of androgens by the male patient?

Testicular atrophy

Increased fertility

Increased urination

Hoarseness

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

675

A Feedback: In adult men, adverse effects include inhibition of testicular function, gynecomastia, testicular atrophy, priapism, baldness, and change in libido. Increased fertility, increased urination, and hoarseness would not be expected assessment findings.

19.

The nurse administers danazol (Danocrine) be a woman for what purpose?

Reverse folic acid deficiencies

Increase hair growth

Decrease symptoms of endometriosis

Prevent toxic shock syndrome.

Ans:

C Feedback: Danazol may be used in women to prevent or treat endometriosis or fibrocystic breast disease. Danazol is not prescribed for increased hair growth, to reverse folic acid deficiencies, or to prevent toxic shock syndrome.

20.

The nurse assesses the young adult athlete who has been taking anabolic steroids to enhance his performance. What findings would the nurse associate with this practice? (Select all that apply.)

Personality changes

Sexual dysfunction

Increased serum lipid levels

Cardiomyopathy

Weight loss

Ans:

A, B, C, D Feedback: Cardiomyopathy, hepatic carcinoma, personality changes, and sexual dysfunction are all associated

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

676

with the excessive and off-label use of anabolic steroids for athletic performance enhancement. Adverse effects associated with prescription use include inhibition of testicular function, gynecomastia, testicular atrophy, priapism, baldness, change in libido, serum electrolyte changes, liver dysfunction, insomnia, and weight gain, not weight loss. 21.

The nurse learns a patient receiving a new prescription for oxandrolone takes a lipid-lowering medication daily. What will the nurse tell the patient about this drug interaction?

Lipid-lowering drug becomes much less effective.

Increased risk of oxandrolone toxicity with this combination of drugs

Increased risk of liver damage with this combination of drugs

Oxandrolone becomes less effective with this combination of drugs.

Ans:

A Feedback: Anabolic steroids may alter lipid metabolism and cause a lack of effectiveness for lipid-lowering agents. Lipid-lowering medications do not impact anabolic steroids and there is no increased risk for toxicity of either drug.

22.

What supplement would be safest for a diabetic female athlete wishing to improve athletic performance?

Bee pollen

Damiana

Wild yam

Spirulina

Ans:

C Feedback: Wild yam is an estrogen-like herb used to increase athletic performance, slow the aging process, and improve energy and stamina. It can be toxic to the liver and may cause breast pain but is the safest of these supplements. Bee pollen is associated with serious allergic reactions and random studies have found wide variety of ingredients in each product. Damiana interferes with antidiabetic agents so it would not be appropriate for this patient. Spirulina may contain toxic metals and can cause serious reactions in children and pets. It interferes with vitamin B12absorption and there are no studies to prove it is effective in the claims it makes.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

23.

677

When a 5-year-old patient is prescribed oxandrolone (Oxandrin) to promote weight gain, how would the nurse expect the drug to be administered?

Long-term

Short-term

Continuous

Intermittent

Ans:

D Feedback: Oxandrin is given intermittently to pediatric patients and should not be used on a daily basis for short, long, or continuous therapy.

24.

The nurse gives a class at the local high school on the use of anabolic steroids. The nurse explains that one of the most serious and all too common side effects of using these drugs without a prescription and medical follow-up is what?

Renal stones

Death

Cirrhosis

Malignant hyperthermia

Ans:

B Feedback: Prolonged use of high doses may cause potentially life-threatening conditions, placing the patient at risk of death. Conditions such as peliosis hepatis, hepatic neoplasms, and hepatocellular carcinoma are often seen with high-dose street use of these drugs. Renal stones, cirrhosis, and malignant hyperthermia are not associated with the use of anabolic steroids.

25.

When fluoxymesterone (Androxy) is administered to a 14-year-old boy for hypogonadism, what is the expected result? Enlarged sex organs

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Decreased skin thickness

Increased protein metabolism

Increased sperm production

Ans:

678

Feedback: In prepubertal boys, administration of male sex hormone-like drugs will stimulate development of masculine characteristics and cause development of the male sexual organs. Production of sperm will occur when the boy enters puberty. These drugs are not administered to decrease skin thickness or increase protein metabolism. 26.

A 69-year-old man is prescribed testosterone. The patient is found to have hypertension and a history of congestive failure after assessment by the nurse. What is this patient at increased risk for?

Fluid retention

Impotence

Liver failure

Kidney failure

Ans:

A Feedback: Older adults often have hypertension and other cardiovascular disorders that may be aggravated by sodium and water retention associated with androgens and anabolic steroids. Testosterone would not increase the risk of impotence. Liver and kidney failure could be exacerbated by the drug if they were preexisting conditions but since that is not indicated by the question, this would be a lower risk than fluid retention.

27.

The nurse is caring for a patient with cryptorchidism who is 28 years old and taking testosterone to treat his condition. What statement by this patient would lead the nurse to believe that he has understood the teaching provided about the drug?

“My body hair may increase.”

“My sexual desire may increase.”

“My voice may become higher.”

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

“My skin may become clear and soft.”

Ans:

679

Feedback: Androgenic effects include acne, edema, hirsutism (increased hair distribution), deepening of the voice, oily skin and hair, weight gain, decrease in breast size, and testicular atrophy. Testosterone does not make the skin clear and soft, it does not make the voice higher, and the testicular atrophy is more likely to decrease rather than increase libido. 28.

A 16-year-old boy is diagnosed with delayed onset of puberty and the physician has ordered testosterone, intramuscular (IM), once every 2 weeks. What nursing intervention would be important to the patient?

Discuss changes that will occur in his body.

Have patient fast before injection.

Have patient reduce protein intake.

Decrease exercise while on this hormonal treatment.

Ans:

A Feedback: It is important for this patient to understand what will happen and the changes he will see to reduce the anxiety that could occur if he didn’t understand. Discuss the development of masculine characteristics as well as common adverse effects such as acne. Having the patient fast before the injection would not be necessary, nor would decreasing exercise or reducing protein intake.

29.

A patient has been prescribed sildenafil citrate. What should the nurse teach the patient about this medication?

Take the medication with a glass of grapefruit juice.

The drug should be taken 1 hour before attempting intercourse.

Facial flushing or headache should be reported to the physician immediately.

A dose exceeding 80 mg will result in a change of vision, making everything appear blue.

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

680

Feedback: The drug should be taken approximately 1 hour before intercourse to allow adequate time for absorption and therapeutic effects to occur. Facial flushing, mild headache, indigestion, and running nose are common side effects of sildenafil citrate and do not need to be reported unless they become acute. The blue haze that occurs with the 100-mg dosage is transient (it lasts about 1 hour). Grapefruit juice should be avoided 2 days before until 2 days after taking the medication because it prolongs the drugs metabolism and excretion. 30.

A 55-year-old man presents at the clinic complaining of erectile dysfunction. The patient has a history of diabetes mellitus. The physician orders tadalafil (Cialis) to be taken 1 hour before sexual intercourse. The nurse reviews the patient’s history before instructing the patient on the use of this medication. What disorder (or condition) would contraindicate the use of tadalafil (Cialis)?

Cataracts

Penile implant

Hypotension

Lung cancer

Ans:

B Feedback: Patients with a penile implant should not take tadalafil. Patients with cataracts, hypotension, or lung cancer may take tadalafil if needed but should do so with caution and should be carefully monitored for adverse effects.

31.

For what reason might the nurse administer sildenafil to a woman?

Pulmonary arterial hypertension

Sexual dysfunction

Breast cancer

Endometriosis

Ans:

A Feedback: Sildenafil is used to treat erectile dysfunction in the presence of sexual stimulation in men and to treat pulmonary arterial hypertension in women. It is not used for sexual dysfunction, breast cancer, or

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

681

endometriosis in women. 32.

A 68-year-old male patient tells the nurse that he has been unable to get an erection for the past 6 months and he guesses his sex life is over. The provider orders diagnostic testing to determine whether sildenafil (Viagra) is appropriate for the patient. What is the most correct nursing diagnosis for this patient?

Sexual dysfunction

Disturbed body image

Ineffective sexuality pattern

Disturbed tactile sensory perception

Ans:

A Feedback: The patient is experiencing sexual dysfunction so that would be the most appropriate nursing diagnosis. The patient did not discuss feeling let down by or unhappy with his body so disturbed body image is incorrect. The effectiveness of sexual pattern is not known. No problem with sensory perception is indicated by this question.

33.

The 22-year-old patient tells the nurse he doesn’t have trouble obtaining and maintaining an erection but wonders if taking Viagra would improve the sexual experience anyway. What is the nurse’s best response?

The only thing Viagra does is improve blood flow to the penis to make it erect.

Viagra improves stamina and sensation, making the sexual experience better.

Viagra has its greatest effect if both the man and woman take it at the same time.

Viagra does nothing to improve the sexual experience.

Ans:

A Feedback: Viagra improves blood flow into the penis and that is its only effect. It does not improve stamina or sensation. Research has indicated it has no effect on women’s sexual response. To say only that Viagra does nothing would not provide adequate information for the patient.

34.

The patient is prescribed oxandrolone 2.5 mg twice a day and is told to increase the dosage to gain weight to a maximum of 20 mg/d. If each tablet contains 2.5 mg, how many tablets would the nurse tell

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

682

the patient he may take per day to avoid exceeding the 20 mg/d maximum? A)

Ans:

C Feedback: Calculate the number of tablets required to administer 20 mg by dividing 20 mg by 2.5 mg. 20/2.5 = 8 tablets

35.

The patient is prescribed sildenafil 25 mg PO one hour before sexual intercourse is planned. The patient returns for follow-up care and says that 25 mg did not produce an erection so he increased the dosage. How much of an increase would be enough to concern a nurse?

50 mg

75 mg

100 mg

25 mg

Ans:

C Feedback: Normal dosage range is 25 to 100 mg so the nurse should not be concerned unless the dosage exceeded 100 mg.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

683

Chapter 42 - Introduction to the Cardiovascular System

Several nursing students are creating a poster on the mechanism of the heart. What structure would they label as separating the right half of the heart from the left?

Auricle

Bundle of His

Syncytia

Septum

Ans:

D Feedback: The septum is a partition that separates the right and left halves of the heart. The right half receives deoxygenated blood from everywhere in the body and the left half receives oxygenated blood from the lungs. The auricle is an appendage attached to each atrium, which collects blood that is pumped into the ventricles by atrial contractions. Impulses are sent from the atria into the ventricles by way of the bundle of His, which then enters the septum and subdivides into three bundle branches that become a network of fibers that delivers the electrical impulse to the ventricular cells. The myocardium forms two intertwining networks, atrial and ventricular syncytia, which enable first the atria and then the ventricles to contract synchronously when excited by the same stimulus.

A nurse is caring for a neonate born with a congenital heart anomaly. To better help the parents understand the impact of this disorder, the nurse begins by describing the usual flow of blood through the heart which takes what course?

Deoxygenated blood from the lungs enters the left atrium through the pulmonary artery.

Oxygenated blood from the lungs enters the right atrium through the pulmonary veins.

Deoxygenated blood from the lungs enters the right atrium through pulmonary veins.

Oxygenated blood from the lungs enters the left atrium through the pulmonary veins.

Ans:

D Feedback: Oxygenated blood from the lungs enters the left atrium through the pulmonary veins and passes through the mitral valve into the left ventricle, which contracts and ejects blood through the aortic valve into the

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

684

aorta and out to the systemic circulation. 3.

A patient is scheduled to have a pacemaker implanted. The nurse knows pacemakers can be inserted to correct what problem?

Increased blood pressure

Increased pulse pressure

Malfunction of the sinuatrial (SA) node

Onset of oncotic pressure

Ans:

C Feedback: Pacemaker cells are found in the SA node of the heart, which controls cardiac contraction and relaxation, therefore controlling the overall heart rate. If the SA node malfunctions, a pacemaker would be indicated. Hypertension, increased pulse pressure, and onset of oncotic pressure would not be an indication for pacemaker insertion.

What description of an artery, made by the nurse, is accurate?

Connective tubes composed of simple endothelial cells

Floppy capacitance tubes

Rigid resistance tubes

Tubes carrying blood into the heart

Ans:

C Feedback: The arteries are muscular, rigid, resistance tubes of the cardiovascular system that carry blood away from the heart. The veins are capacitance tubes that carry blood to the heart. Capillaries connect arteries and veins.

A 54-year-old man has a myocardial infarction, resulting in left-sided heart failure. The nurse caring for the man is most concerned that he will develop edema in what area of the body? Abdominal

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Liver

Peripheral

Pulmonary

Ans:

685

Feedback: Pulmonary edema can occur when the heart is damaged and the left side of the heart is unable to effectively pump blood returning from the right side of the heart into systemic circulation. This lack of blood movement out of the lungs results in an increased hydrostatic pressure in the capillary beds of the lungs and the result can be pulmonary edema. Abdominal, liver, and peripheral edemas occur when the right side of the heart is failing and the returning venous blood pools in the organs and periphery. 6.

A patient, diagnosed with heart failure, would like the nurse to explain what the diagnosis means. How will the nurse explain heart failure?

The heart muscle cannot pump effectively causing a backup of blood.

The hydrostatic pressure pushing fluid out of the capillaries is lower than the oncotic pressure.

The decrease in venous pressure from the backup of blood increases hydrostatic pressure.

Increased protein leads to reduced oncotic pressure and inability to pull fluid into the system.

Ans:

A Feedback: Heart failure occurs when the heart muscle fails to do its job of effectively pumping blood through the system and blood backs up and the system becomes congested. The rise in venous pressure that results from the backup of blood increases hydrostatic pressure on the venous end of the capillaries. The hydrostatic pressure pushing fluid out of the capillaries becomes greater than the oncotic pressure that is trying to pull the fluid back into the vessel, thus causing fluid to be lost into the body tissues. Protein loss can lead to a fall in oncotic pressure and an inability to pull fluid back into the vascular system.

A patient who is on a ventilator has been declared brain dead. A family member asks the nurse how the heart can still function if his father’s brain is dead. What statement is an appropriate response by the nurse?

Death of the heart will follow brain death in a few hours.

The heart is controlled by the brainstem, not the upper levels of the brain.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The cardiovascular center in the medulla would not be reflected in any tests.

The heart is self-controlled and does not depend on the brain to beat.

Ans:

686

Feedback: The heart can generate action potentials on its own and can function without connection to the rest of the body. The heart will continue to function as long as oxygen and glucose are supplied to it. The brain does not initiate heart functioning. The cardiovascular center in the medulla helps to regulate blood pressure, not heart function. 8.

The nurse is caring for a patient in the ICU; hypotension may be anticipated when the patient’s body produces insufficient quantities of what hormone?

Calcitonin hormone

Antidiuretic hormone (ADH)

Growth hormone

Melanocyte-stimulating hormone

Ans:

B Feedback: Antidiuretic hormone is released from the pituitary gland resulting from reduced plasma volume or increased plasma osmotic pressure, so it serves to help maintain blood pressure. Angiotensin II also releases aldosterone from the cortex of the suprarenal gland, which causes retention of sodium and water, leading to the release of ADH to retain water and increase blood volume. Calcitonin maintains a dense, hard bone matrix and lowers blood calcium levels. Growth hormone regulates cell division and protein synthesis necessary for normal growth. Melanocyte-stimulating hormone causes skin pigmentation in humans.

The nurse is caring for a patient whose blood pressure is 120/78. What is the pulse pressure?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

687

C Feedback: The pulse pressure is the difference between systolic and diastolic pressure. The systolic pressure is usually 40 points greater than the diastolic pressure. A pulse pressure of over 50 points or less than 30 points is considered abnormal. This patient’s pulse pressure is 42 (120 minus 78).

10.

A patient is admitted to the cardiac unit with a diagnosis of a myocardial infarction (MI). The nurse notes that the patient is having regular premature ventricular contractions (PVCs). Why would the nurse be concerned?

Blood is not efficiently pumped from the heart with PVCs.

Healing of the myocardium will be disrupted.

PVCs usually cause severe pain.

PVCs make it difficult to make a definitive diagnosis.

Ans:

A Feedback: Arrhythmias can alter cardiac output that could affect every cell in the body. Arrhythmias usually do not cause pain, disrupt healing, or interfere with the diagnosis of an MI.

11.

The nurse is caring for a patient whose damaged ventricle is reducing left ventricular filling and causing a backup of blood into the left atrium. What valve is damaged in this patient?

Mitral

Pulmonic

Aortic

Tricuspid

Ans:

A Feedback: The valve between the atrium and ventricle on the left side of the heart, called the mitral or bicuspid valve, is composed of two leaflets or cusps that allow the left ventricle to fill with blood and then close to prevent backflow of blood into the left atrium. If this valve is damaged, contraction of the ventricle

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

688

will push blood back into the left atrium and result in inadequate cardiac output. The pulmonic valve is located between the right ventricle and pulmonary artery. The aortic valve allows blood to flow from the left ventricle into the aorta. The tricuspid valve is the valve between the right atria and ventricle. 12.

How would the nurse calculate the patient’s pulse pressure?

The ejection pressure minus the filling pressure

The end-artery pressure minus the resting pressure

The difference between the ejection and the resting pressures

The filling pressure of the coronary artery minus the end-artery pressure

Ans:

C Feedback: The pressure that fills the coronary arteries is the difference between the systolic (ejection) pressure and the diastolic (resting) pressure. This is called the pulse pressure (systolic minus diastolic blood pressure readings). Options A, B, and D are not correct.

13.

The nurse takes the patient’s pulse and finds a regular rate at 44 beats/min. What area of the heart is controlling this patient’s heart rate?

The atrioventricular (AV) node

The bundle of His

The Purkinje fibers

The sinuatrial (SA) node

Ans:

D Feedback: The SA node generates an impulse about 90 to 100 times a minute, the AV node about 40 to 50 times a minute, and the complex ventricular muscle cells only about 10 to 20 times a minute.

14.

The nurse is caring for a patient with severe coronary artery disease (CAD) who is experiencing chest pain because the oxygen demand exceeds supply. What forces could potentially be lowered to reduce oxygen consumption? (Select all that apply.) Pulse pressure

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Afterload

Stretch on the ventricles

Heart rate

Preload

Ans:

B, C, D, E

689

Feedback: The primary forces that determine the heart’s use of oxygen or oxygen consumption include: Heart rate (the more the heart has to pump, the more oxygen it requires), preload (the more blood that is returned to the heart, the harder it will have to work to pump the blood around), afterload (the higher the resistance in the system, the harder the heart will have to contract to force open the valves and pump the blood along), and stretch on the ventricles (if the ventricular muscle is stretched before it is stimulated to contract, more actomyosin bridges will be formed, which will take more energy). Pulse pressure does not impact oxygen consumption. 15.

The patient has edema resulting from heart failure (HF) in both ankles. The nurse interprets this to mean the hydrostatic pressure is higher than what opposing pressure?

Pulse pressure

Edema pressure

Fluid pressure

Oncotic pressure

Ans:

D Feedback: Hydrostatic pressure pushing fluid out of the capillary is soon higher than the oncotic pressure that is trying to pull the fluid back into the vessel, causing fluid to be lost into the tissues. This shift of fluid accounts for the edema seen in association with HF. This transfer of fluid in the capillaries, called the capillary fluid shift, is carefully regulated by a balance between hydrostatic (fluid pressure) forces on the arterial end of the capillary and oncotic pressure (the pulling pressure of the large, vascular proteins) on the venous end of the capillary. Pulse pressure has nothing to do with edema. Edema pressure and fluid pressure do not exist.

16.

The nurse is explaining the normal conduction pattern of the heart to an adolescent with a newly diagnosed congenital heart anomaly. The nurse tells the patient that what serves as the pacemaker for the heart?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The atrioventricular (AV) node

The bundle of His

The Purkinje fibers

The sinuatrial (SA) node

Ans:

690

Feedback: The SA node, which is located near the top of the right atrium, acts as the pacemaker of the heart. The SA node sends the signal to the AV node, and then to the bundle of His, and into the Purkinje fibers, but it is the SA node that sets the rate. 17.

The nurse is caring for an older adult patient who is displaying alterations in the conduction of impulses in the SA node which the nurse assesses as what?

Cardiac gallop

Tachycardia

Cardiac dysrhythmias

Heart murmurs

Ans:

C Feedback: Alterations in the generation of conduction of impulses in the heart cause arrhythmias (dysrhythmias), which can upset the normal balance in the cardiovascular system and lead to a decrease in cardiac output, affecting all of the cells of the body. Tachycardia is only one of the possible arrhythmias that may result. Cardiac gallop and murmurs in the older adult with no history of congenital anomalies is usually caused by a poorly functioning heart valve and not by an alteration in conduction.

18.

The nurse is caring for a patient with coronary artery disease and hypertension. The nurse explains to the patient that coronary artery disease disables what process that controls blood pressure?

Capacitance system

Ability of the arterioles to increase or decrease resistance

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Oncotic pressure

Ability of the venules to return blood to the veins

Ans:

691

Feedback: The entire arterial system contains muscles in the walls of the vessels all the way to the terminal branches or arterioles, which consist of fragments of muscle and endothelial cells. These muscles offer resistance to the blood that is sent pumping into the arterial system by the left ventricle, generating pressure. The arterial system is referred to as a resistance system. Its vessels can either constrict or dilate, thus increasing or decreasing resistance, respectively, based on the needs of the body. The capacitance system is the venous system and does not contribute to regulation of arterial blood pressure. Oncotic pressure acts to pull the fluid back into the vessel. The venules have no impact on regulation of arterial blood pressure. 19.

When a muscle acts as a pump what is a necessary property for the muscle to function efficiently?

Antagonistic contraction

Antagonistic relaxation

Simultaneous contraction

Simultaneous relaxation

Ans:

C Feedback: Simultaneous contraction is a necessary property for a muscle that acts as a pump. A hollow pumping mechanism must also pause long enough in the pumping cycle to allow the chambers to fill with fluid. The heart muscle relaxes long enough to ensure adequate filling; the more completely it fills, the stronger the subsequent contraction is. This occurs because the muscle fibers of the heart, stretched by the increased volume of blood that has returned to them, spring back to normal size. This property is defined through Starling’s law of the heart. Simultaneous relaxation or antagonistic contraction or relaxation is not necessary.

20.

The nurse is caring for a science professor with hypertension who asks for a more complete explanation of blood pressure. The nurse begins by explaining that the phase when the ventricle contracts and ejects blood out into the aorta is known as what?

Systole

Diastole

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Hypertension

Ejection fraction

Ans:

692

Feedback: Contraction of the ventricles is called systole. Each period of systole is followed by a period of diastole when the heart rests. Ejection fraction is a measurement of cardiac output, or the blood ejected with each ventricular contraction. Hypertension is defined as elevated blood pressure and may include either systole or diastole or both. 21.

When sodium gates open along the cell membrane and sodium rushes into the cell it results in the membrane no longer having a positive or negative side but being electrically the same on both sides. The nurse recognizes this period of the cardiac cycle as what?

Depolarized

Repolarized

Polarity

Action potential

Ans:

A Feedback: Phase 0 occurs when the cell reaches a point of stimulation. The sodium gates open along the cell membrane, and sodium rushes into the cell, resulting in a positive flow of electrons into the cellan electrical potential. This is called depolarization. The membrane no longer has a positive side or pole and a negative side; instead it is depolarized, or, in other words, electrically the same on both sides. During depolarization, the cells cannot be forced to contract. Repolarization is when the sodium returns to the outside of the cell and potassium returns to the inside of the cell and the muscle is ready to contract again. Action potential is the ability of the heart to respond to an electrical stimulus. Polarity is the electrical charge.

22.

The nurse explains the normal conduction pathway to the patient and evaluates the patient understood when they provide what description of the conduction pathway in the heart?

Sinuatrial (SA) node to bundle of His to atrioventricular (AV) node to Purkinje fibers

SA node to AV node to Purkinje fibers to bundle of His

SA node to bundle of His to Purkinje fibers to AV node

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

SA node to AV node to bundle of His to Purkinje fibers

Ans:

693

Feedback: The normal conduction route is SA node to AV node to bundle of His to Purkinje fibers. Therefore, options A, B, and C are incorrect. 23.

The patient has had a myocardial infarction. The nurse realizes the significance of this injury is damage to what layer of the heart?

Endocardium

Pericardium

Myocardium

Epicardium

Ans:

C Feedback: The fibers of the cardiac muscle, or myocardium, form two intertwining networks called the atrial and ventricular syncytia. A myocardial infarction impacts this layer, which results in reduced pumping ability. The endocardium is the inner lining of the heart that comes in contact with the blood. The pericardium is the sac around the heart. The epicardium is the outermost layer of the heart.

24.

The nurse is caring for a patient in a state of shock. The family asks the nurse why the patient is so sick. What is the nurse’s best response?

The patient probably has an infection that is making him look so sick.

The coronary arteries are not supplying adequate blood flow to the myocardium.

The pumping action of the ventricles is diminished, resulting in blood backing up in his lungs.

Low blood pressure means inadequate supply of oxygen to the body’s tissues.

Ans:

D Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

694

The pressure of the blood in the arteries needs to remain relatively high to ensure that blood is delivered to every cell in the body and to keep the blood flowing from high-pressure to low-pressure areas. The pressure can fall dramaticallythis is called hypotensionfrom loss of blood volume or from failure of the heart muscle to pump effectively. Severe hypotension can progress to shock and even death as cells are cut off from their oxygen supply. An infection would result in septic shock. Many types of shock exist. Inadequate supply of oxygen via the coronary arteries results in a myocardial infarction. Reduced pumping action of the heart is called heart failure. 25.

The nurse is caring for a patient with chronic renal failure. The patient asks the nurse how his kidney disease causes hypertension. What is the nurse’s best response?

When blood flow to the kidney is under high pressure it causes release of antidiuretic hormone (ADH).

When too much blood flows to the kidney, it causes vasodilation.

When blood flow to the kidney declines, cells in the kidney release renin.

Renin production converts ADH to angiotensin I in the liver.

Ans:

C Feedback: When blood flow to the kidneys is decreased, cells in the kidney release an enzyme called renin. Renin is transported to the liver, where it converts angiotensinogen (produced in the liver) to angiotensin I. Angiotensin I travels to the lungs, where it is converted by angiotensin-converting enzyme (ACE) to angiotensin II. Angiotensin II travels through the body and reacts with angiotensin II receptor sites on blood vessels to cause a severe vasoconstriction. This increases blood pressure and should increase blood flow to the kidneys to decrease the release of renin. Angiotensin II also causes the release of aldosterone from the cortex of the suprarenal glands, which causes retention of sodium and water, leading to the release of ADH to retain water and increase blood volume.

26.

The nurse is assigned to watch the cardiac monitors in the constant care unit and notes four different patients displaying arrhythmias. Which arrhythmia is the nurse’s highest immediate priority?

Sinus bradycardia at a rate of 54 beats/min

Atrial flutter

Sinus tachycardia at a rate of 108 beats/min

Ventricular fibrillation

Ans:

D Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

695

Ventricular fibrillation is seen as a bizarre, irregular, distorted wave. It is potentially fatal because it reflects a lack of any coordinated stimulation of the ventricles. The ventricles’ inability to contract in a coordinated fashion results in no blood being pumped to the body or the brain. Thus, cardiac output is totally lost. Sinus bradycardia, sinus tachycardia, and atrial flutter may all require attention but are not as life threatening as ventricular fibrillation. 27.

How does the nurse describe the cardiac action potential to a new coworker?

The cycle of depolarization and repolarization

The time it takes from the firing of the sinuatrial (SA) node to the contraction of the ventricles

The time between the contraction of the atria and the contraction of the ventricles

The cycle of the firing of the atrioventricular (AV) node and the contraction of the myocardium

Ans:

A Feedback: The action potential of the cardiac muscle cell consists of five phases: Phase 0 occurs when the cell reaches a point of stimulation. This is called depolarization. Phase 2, or the plateau stage, is a process called repolarization. Phase 4 is when spontaneous depolarization begins again. The action potential involves electrolytes and polarization and does not involve timing of the cardiac cycle.

28.

The nurse teaches a class on the systems that control blood pressure and includes what systems in the discussion? (Select all that apply.)

The capacitance system

Aldosteroneantidiuretic hormone (ADH) system

Difference between the systolic and the diastolic readings

Stimulus from the sympathetic system

Reflex control of blood volume

Ans:

B, D, E Feedback: Blood pressure is maintained by stimulus from the sympathetic system and reflex control of blood volume and pressure by the reninangiotensin system and the aldosteroneADH system. The difference between the systolic and the diastolic readings does nothing to control blood pressure. The capacitance

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

696

system does not regulate blood pressure. 29.

A patient presents at the clinic complaining of shortness of breath, fatigue, and difficulty performing activities of daily living (ADLs). The nurse notes the bluish color around the patient’s mouth and fingernail beds. What would the nurse expect the patient has?

A dysrhythmia

Hypotension

Heart failure

Hypertension

Ans:

C Feedback: If the heart muscle fails to do its job of pumping blood through the system effectively, blood backs up and the system becomes congested. This is called heart failure (HF). In the case described, the patient does not present with symptoms characteristic of a dysrhythmia, hypotension, or hypertension.

30.

The nurse explains how the myocardium receives oxygen to the new graduate nurse beginning work in the constant care unit; she tells the new nurse the coronary arteries receive blood when?

During diastole

During systole

When the heart is refractory

When the aortic valve is open

Ans:

A Feedback: The coronary arteries receive blood during diastole, when the muscle is at rest and relaxed so that blood can flow freely into the muscle. When the ventricle contracts, it forces the aortic valve open, which in turn causes the leaflets of the valve to cover the openings of the coronary arteries.

31. A)

The nurse explains that the reason the left ventricle is so much larger than the right ventricle is what? The left ventricle needs to pump blood through the entire body.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The left ventricle needs to pump blood through both lungs.

The right ventricle pumps blood through the entire body.

The right ventricle pulls blood back into the heart from the lungs.

Ans:

697

Feedback: The left ventricle is much larger because it has to pump strongly enough to circulate blood through the entire body. The right ventricle pumps blood only to the lungs, which are nearby. 32.

The nurse is caring for a patient with hypertension and recognizes this will have what impact on afterload?

Increased afterload

Reduced afterload

Unchanged afterload

Initial increase and then decrease in afterload

Ans:

A Feedback: Blood pressure is a measure of afterload so the higher the patient’s blood pressure the higher the afterload. The higher the resistance in the system, the harder the heart will have to contract to force open the valves and pump the blood along. Options B, C, and D are not correct.

33.

The patient’s blood pressure is low due to shock and vasodilation of the blood vessels. The nurse recognizes this will have what impact on preload?

Preload will increase.

Preload will decrease.

Preload will depend on afterload.

Preload will vary with activity of the patient.

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

698

Feedback: Preload is the amount of blood brought back to the heart to be pumped through the body. Vasodilation and shock will reduce preload because the pressure in the system is reduced, pushing less fluid through the vessels. 34.

The patient has a diagnosis of atherosclerosis. When a branch of the coronary artery becomes completely blocked, what event will the nurse expect to occur?

Heart failure

Arrhythmia

Myocardial infarction

Hypertension

Ans:

C Feedback: The blood supply is most frequently altered, however, when the coronary vessels narrow and do not respond to stimuli to dilate and deliver more blood. This happens in atherosclerosis or coronary artery disease. The end result of this narrowing can be total blockage of a coronary artery, leading to hypoxia and eventual death of the cells that depend on that vessel for oxygen. This is called myocardial infarction (MI); as of 2010, it is the leading cause of death in the United States. An arrhythmia is an alteration in the conduction system. Heart failure is caused by ineffective pumping action of the heart muscle. Hypertension is an increase in blood pressure.

35.

The patient has an excessive production of antidiuretic hormone (ADH). The nurse expects what change in the patient’s blood pressure?

Increase in blood volume will cause increase in blood pressure.

Increase in water and sodium excretion will cause a decrease in blood volume.

Increase in ADH production will cause an increase in renin production and hypertension.

Increase in ADH production will decrease angiotensin production and hypotension.

Ans:

A Feedback: Release of ADH causes the kidney to retain water and increase blood volume. Increasing blood volume

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

increases blood pressure.

699

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

700

Chapter 43 - Drugs Affecting Blood Pressure

What does the clinic nurse anticipate as initial drug therapy for a 39-year-old African American man who is 25 pounds overweight and newly diagnosed with hypertension?

An angiotensin-converting enzyme (ACE) inhibitor

A beta-blocker

A calcium channel blocker

A diuretic

Ans:

D Feedback: African Americans are at highest risk for developing hypertension with men more likely than women to develop the disease. African Americans have documented differences in response to antihypertensive therapy. They are most responsive to single-drug therapy and diuretics. The first line use of a diuretic is in combination with diet and other lifestyle changes. The use of a calcium channel blocker and/or alpha-adrenergic blocker should follow. African Americans are less responsive to ACE inhibitors and beta-blocker.

The clinic nurse assesses a patient taking benazepril (Lotensin) to control hypertension. What is the priority nursing assessment related to this drug?

Mental illness

Hepatic disease

Renal disease

Peptic ulcer disease

Ans:

C Feedback: Benazepril is an angiotensin-converting enzyme inhibitor; drugs in this class are contraindicated in the presence of impaired renal function. Mental illness, hepatic disease, or peptic ulcer disease is not a contraindication with this drug.

A patient has been prescribed losartan (Cozaar) for hypertension. What patient teaching points will the

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

701

nurse include about this drug include? A)

Report onset of a cough or fever to health care provider.

Limit fluid intake to decrease urinary output.

Monitor blood pressure once a week.

Take the drug late in the day to prevent sleepiness.

Ans:

A Feedback: Losartan is an angiotensin IIreceptor blocker that is associated with a cough, back pain, fever, muscle weakness, and upper respiratory tract infections, so the patient should be taught to report a fever or cough to his health care provider. Fluid intake should be normal and the drug is best taken in the morning. Blood pressure should be monitored daily, especially when first starting the drug when adverse effects are not yet known.

A patient newly diagnosed with hypertension has just been given a prescription for medication. Along with promoting safety, what is the other goal of the nurse’s teaching plan?

A blood pressure of 120/80

Medication compliance

A discussion with his insurance company about the cost of the drug

Verbalization of why drugs should be kept out of the reach of children

Ans:

B Feedback: The nurse provides thorough patient teaching, including the name of the drug, dosage prescribed, measures to avoid adverse effects, warning signs of problems, and the need for periodic monitoring and evaluation, to enhance patient knowledge about drug therapy and to promote compliance. All of the options are realistic outcomes for this patient. However, compliance is a great concern for people who are in need of hypertensive agents. It would be most important for his or her health care provider to know that he or she has filled the prescription and is taking his or her medication as prescribed. Keeping the drug out of the reach of children would be a safety measure.

A stepped care management approach to treating hypertension includes weight loss, smoking cessation, decreased use of alcohol, reducing salt in the diet, and increased physical exercise. In which step of a stepped-care management approach will the nurse teach about these changes in lifestyle?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Step 1 only

Steps 1 and 2

Steps 1, 2, and 3

Steps 1, 2, 3, and 4

Ans:

702

Feedback: Lifestyle changes are encouraged in all four steps and should be advocated for the maintenance of good health. These changes are stressed in steps 1 and 2 in the hope that drug therapy will not be necessary. However, these changes should occur in steps 3 and 4 as well. 6.

A patient taking diltiazem (Cardizem) for hypertension has come to the clinic for a follow-up appointment. What adverse effects would the nurse assess the patient for?

Chest pain and pale skin

Shortness of breath and wheezing

Peripheral edema and bradycardia

Tachycardia and increased energy level

Ans:

C Feedback: Cardiovascular adverse effects of diltiazem include bradycardia, peripheral edema, and hypotension. Skin flushing and rash may occur. There should be no effect on the lungs and usually this drug causes fatigue rather than increased energy levels.

A patient who works on road construction has been diagnosed with hypertension. After attempting to decrease his blood pressure with lifestyle changes and a mild diuretic, it is determined that he will need to be placed on an angiotensin-converting enzyme (ACE) inhibitor. Based on his occupation, what is the nurse’s priority assessment?

Chronic constipation

Excessive sweating on the job

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Three large meals a day

One beer every night

Ans:

703

Feedback: A patient taking an ACE inhibitor should be sure to maintain fluid intake, so excessive sweating on the job places him at risk for a drop in fluid volume. Excessive sweating, vomiting, diarrhea, or dehydration need to be monitored and treated if they occur while taking an ACE inhibitor. Six smaller meals rather than three larger ones would be better and should be encouraged. However, this could be a problem with his job. The best treatment for constipation would be to increase fluid and fiber and one beer a night would be within reason when considering alcohol intake. 8.

What is the nurse’s priority to assess before giving a female patient her prescription for an angiotensin IIreceptor blocker (ARB)?

Do you eat something when you take your medications?

How much physical exercise do you get?

When was your last menstrual period (LMP)?

Have you always weighed 130 pounds since you grew up?

Ans:

C Feedback: It would be important to know when the patient’s LMP occurred and that the patient was not pregnant. These drugs can cause fetal abnormalities and fetal death. The other questions are appropriate and would help the nurse plan care for the patient; however, it would not be as important as assessing for the possibility of pregnancy before beginning of therapy. The nurse should teach the patient the need to avoid pregnancy using a barrier contraceptive.

A patient taking a calcium channel blocker is seen in the clinic and diagnosed with drug toxicity. When collecting the nursing history, what finding would indicate the likely cause of this drug toxicity?

Intake of alcohol

The use of eggs in the diet

The ingestion of grapefruit juice

Intake of aged cheese

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

704

C Feedback: The calcium channel blockers are a class of drugs that interact with grapefruit juice. When grapefruit juice is present in the body, the concentrations of calcium channel blockers increase, sometimes to toxic levels. Advise patients to avoid drinking grapefruit juice taking a calcium channel blocker. If a patient on a calcium channel blocker reports toxic effects, ask whether he or she is drinking grapefruit juice. Use of alcohol could be important if the patient was ingesting large amounts, but that would not be the most likely cause of drug toxicity. Eggs and cheese should not exert any fooddrug interaction.

10.

An older adult patient is taking a sustained-release antihypertensive drug. What is the nurse’s priority teaching point about this medication?

Take your blood pressure only at night.

Swallow the drug whole and do not to cut, crush, or chew it.

Take the drug before bedtime.

Use over-the-counter (OTC) drugs to control headache or cold symptoms.

Ans:

B Feedback: Sustained-release drugs are suspended in a matrix system that allows a steady release of the drug over time. Sustained-release drugs cannot be cut, crushed, or chewed; it destroys the matrix system and allows absorption of the complete dose all at once. Older patients should be especially cautioned about sustained-release antihypertensives that cannot be cut, crushed, or chewed to avoid the potential for excessive dosing if these drugs are inappropriately cut. Many OTC drugs contain ingredients that increase blood pressure and so are not recommended for patients with hypertension. The patient can take his or her blood pressure any time during the day but should take the drug in the morning.

11.

A patient has been started on losartan (Cozaar), an angiotensin IIreceptor blocker (ARB), for hypertension. After 6 weeks of therapy, it is decided that the losartan alone is not controlling the patient’s hypertension. What does the nurse anticipate will be added to the losartan regimen for better control of this patient’s hypertension?

Candesartan (Atacand)

Hydrochlorothiazide (Hyzaar)

Captopril (Capoten)

Antidiuretic hormone (ADH)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

705

B Feedback: When losartan therapy is started, maximal effects on blood pressure usually occur within 3 to 6 weeks. If losartan alone does not control blood pressure, a low dose of a diuretic may be added. A combination product of losartan and hydrochlorothiazide (Hyzaar) is available. Adding a second ARB such as candesartan or captopril would risk causing toxic adverse effects. ADH causes retention of water in the nephrons, which would further increase blood pressure.

12.

The nurse is providing drug teaching for a patient who is prescribed enalapril (Vasotec). What drug specific adverse effect will the nurse include in the drug teaching?

Sedation

Persistent cough

Tachycardia

Rash

Ans:

B Feedback: Benazepril, enalapril, and fosinopril are generally well tolerated but cause an unrelenting cough, possibly related to adverse effects in the lungs, where the angiotensin-converting enzyme is inhibited, which may lead patients to discontinue the drug. This persistent cough develops in approximately 10% to 20% of patients.

13.

The nurse provides drug teaching to the patient prescribed captopril (Capoten). What statement made by the patient does the nurse interpret to mean teaching has been effective?

I will limit my fluid intake to 1,200 mL daily.

I will call my doctor if I bruise easily or become extremely tired.

I will move from a reclining to a standing position slowly.

I will increase my intake of foods high in potassium.

Ans:

B Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

706

Captopril has been associated with a sometimes-fatal pancytopenia, cough, and unpleasant gastrointestinal (GI) distress so the patient should be alert to symptoms related to anemia, reduction in platelets, or infection. There is no need to increase potassium intake because a slight rise in potassium level is associated with this drug. Orthostatic hypotension is not a listed adverse effect. There is no need to limit fluid intake for most patients unless they have a comorbid disorder. 14.

The nurse provides dietary teaching to the patient with hypertension and determines the patient understood the information when what meal is selected?

Hot dogs, baked beans, and cole slaw

French fries, grilled hamburger, and cola drink

Grilled chicken, green salad with dressing, and baked apple

Bologna sandwich with mayonnaise, potato chips, and a chocolate-chip cookie

Ans:

C Feedback: Chicken, salad, and fruit are all low in sodium. The other meal options all contain foods high in sodium (i.e., hot dogs, French fries, processed meats like bologna, and potato chips).

15.

The nurse works with the patient, diagnosed with hypertension, and the patient’s family to determine the goal of drug therapy for the patient taking an antihypertensive medication is what?

Maintaining compliance

Maintaining the blood pressure within normal limits

Maintaining a fluid volume balance

Maintaining homeostasis

Ans:

B Feedback: Helping the patient to maintain the blood pressure within normal limits is the goal of drug therapy. How blood pressure is maintained within normal limits may involve balancing fluid volume and patient compliance with the plan of care, but these are interventions and not the goal of therapy. Returning the patient to homeostasis comes before maintaining homeostasis.

16.

While studying the antihypertensive drugs, the nursing students learn that the pressure in the

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

707

cardiovascular system is determined by three elements. What are they? (Select all that apply.) A)

Heart rate

Stroke volume

Preload

Total peripheral resistance

Pulse pressure

Ans:

A, B, D Feedback: The pressure in the cardiovascular system is determined by three elements: heart rate, stroke volume, or the amount of blood that is pumped out of the ventricle with each heartbeat (primarily determined by the volume of blood in the system), and total peripheral resistance, or the resistance of the muscular arteries to the blood being pumped through. The preload and the pulse pressure are not factors that regulate pressure in the cardiovascular system.

17.

The nurse recognizes blood pressure is determined by three elements including what?

Peripheral resistance

Pulse pressure

Renal blood flow

Preload

Ans:

A Feedback: The pressure in the cardiovascular system is determined by three elements: heart rate, stroke volume, and peripheral resistance. The small arterioles are thought to be the most important factors in determining peripheral resistance. Because they have the smallest diameter, they are able to almost stop blood flow into capillary beds when they constrict, building up tremendous pressure in the arteries behind them as they prevent the blood from flowing through.

18.

When a combination of drugs needs to be incorporated into the drug regimen for a hypertensive patient, what type of diuretic would the nurse expect to administer?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Thiazide

Loop

Potassium-sparing

Osmotic

Ans:

708

Feedback: A somewhat controversial study, the Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial (ALLHAT), reported in 2002 that patients taking the less expensive, less toxic diuretics did better and had better blood pressure control than patients using other antihypertensive agents. Replications of this study have supported its findings, and the use of a thiazide diuretic is currently considered the first drug used in the stepped-care management of hypertension. 19.

The nurse is caring for a patient who has been noncompliant with treatment for hypertension. The nurse explains that untreated hypertension increases the risk of what? (Select all that apply.)

Renal disease

Cerebral infarction

Heart failure

Cholecystitis

Migraine headache

Ans:

A, B, C Feedback: Hypertension is a common chronic disorder. It is estimated that at least 20% of the people in the United States have hypertension. Hypertension increases risks of myocardial infarction, heart failure, cerebral infarction and hemorrhage, and renal disease. It does not increase the risk of cholecystitis or migraine headache.

20.

The nurse administers ambrisentan (Letairis) to the patient diagnosed with pulmonary arterial hypertension. What single indicator would the nurse use to evaluate the effectiveness of this medication? Oxygen saturation

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Resting respiratory rate

Exercise tolerance

Breath sounds

Ans:

709

Feedback: Although it is certainly important to assess all aspects of oxygenation and ventilation, the single best indicator of drug effectiveness is improved exercise tolerance. Many patients can oxygenate at rest and maintain a normal resting respiration, but activity increases oxygen demand, which is when signs of pulmonary hypertension are best seen. 21.

The pediatric nurse examines a child with mildly elevated blood pressure who is 10% above the upper weight limits for his or her age. What is the nurse’s priority teaching point?

Encourage activity and begin weight loss diet.

Explain how to administer diuretics to reduce adverse effects.

Involve social services in monitoring this child’s diet.

Explain the most common adverse effects of calcium channel blockers.

Ans:

A Feedback: Treatment of childhood hypertension should be done very cautiously because the long-term effects of the antihypertensive agents are not known. Lifestyle changes should be instituted before drug therapy is started if at all possible. Weight loss and increased activity may bring an elevated blood pressure back to normal in many children. As a result, the priority teaching point is to help parents understand how to adapt the child’s diet to reduce weight and introduce family activities to increase exercise. Drug teaching would only be required if lifestyle changes is inadequate to lower blood pressure. There is no need to involve social services.

22.

The nurse is caring for an obese child with hypertension and slightly elevated serum glucose levels. What would the nurse anticipate will be ordered if lifestyle changes do not return blood pressure to an acceptable limit?

Lifestyle changes

Mild diuretic

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Calcium channel blocker.

Beta-blocker

Ans:

710

Feedback: Lifestyle changes should be instituted before drug therapy if at all possible. If drug therapy is used, a mild diuretic may be tried first, with monitoring of blood glucose and electrolyte levels on a regular basis. Calcium channel blockers have been used to treat hypertension in children and may be among the first considerations if drug therapy other than mild diuretics is needed. Beta-blockers have been used with success in some children; adverse effects may limit their usefulness in others. The safety and efficacy of the angiotensin-converting-enzyme (ACE) inhibitors and the angiotensin-receptor blockers (ARBs) have not been established in children. 23.

The emergency department nurse is asked to prepare a nitroprusside (Nitropress) infusion for a patient being brought to the hospital in an ambulance. The nurse knows this drug is only used in what circumstances?

Hypertensive emergencies

Hypertension in a patient having a myocardial infarction

Hypertension complicated by symptoms of a stroke

Hypertension associated with diabetic ketoacidosis

Ans:

A Feedback: Most of the vasodilators are reserved for use in severe hypertension or hypertensive emergencies. These include hydralazine, minoxidil, and nitroprusside. The presence of absence of a comorbidity does not increase the likelihood of use. These drugs are used when blood pressure is extremely high and needs to be reduced quickly.

24.

The nurse cares for a diabetic patient with uncontrolled hypertension who has been prescribed losartan (Cozaar). The health care provider changes this patient’s prescription to losartan with hydrochlorothiazide (Hyzaar). What benefits does the nurse anticipate this patient will receive from this drug therapy? (Select all that apply.)

Slows progression of diabetic nephropathy in type 2 diabetes

Increases excretion of fluid and sodium resulting in lower blood volume

Alters electrolyte and acidbase balance

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Improves control of blood pressure due to combination therapy

Produces far fewer adverse effects resulting from the combination

Ans:

A, B

711

Feedback: Many patients require more than one type of antihypertensive to achieve good control of their blood pressure. There are now many fixed-combination drugs available for treating hypertension. This allows for fewer tablets or capsules each day, making it easier for the patient to comply with drug therapy. Losartan slows the progression of diabetic nephropathy in patients with hypertension and type 2 diabetes. Hydrochlorothiazide is a diuretic that will increase excretion of fluid and sodium resulting in a lower circulating blood volume that will help to reduce blood pressure, preload, and afterload. The two drugs will work together to better control the patient’s blood pressure. Alteration in electrolytes and acidbase is a reasonable expectation but it is an adverse effect and not a benefit. There are likely to be more adverse effects when taking drugs that are not fixed combinations. 25.

The patient is diagnosed with secondary hypertension. What will be the focus of nursing care to treat this patient?

Administering epinephrine

Administering antihypertensives

Promoting healthy lifestyle

Treating the cause

Ans:

A Feedback: Most people have essential, or primary, hypertension with no known cause that is treated with medications and lifestyle changes. Patients with secondary hypertension means there is a known cause of the blood pressure elevation. There are many different things that can result in secondary hypertension; the focus of care is treating the cause whether that requires surgery, medication, or discontinuing a medication that is causing hypertension as an adverse effect.

26.

The patient does not want to take medication to treat his or her hypertension if he or she can avoid it and asks the nurse if there is anything else he or she can do? What lifestyle changes will the nurse recommend? (Select all that apply.)

Increase time spent exercising.

Eliminate all salt from your diet.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Reduce intake of fluids.

Lose some weight.

Try meditation.

Ans:

A, D, E

712

Feedback: Exercising, losing weight, and meditation to reduce stress are all effective changes the patient can make in her lifestyle. However, if these do not bring blood pressure to within acceptable limits, the next step in the stepped-care management approach to treat hypertension would be to introduce a diuretic, betablocker, angiotensin-converting enzyme inhibitor, calcium channel blocker, or angiotensin IIreceptor blocker in addition to the lifestyle changes. It is not necessary, or even possible, to eliminate all sodium from the diet but cutting back will reduce water retention. Reducing intake of fluids is not a healthy option and would not be suggested unless comorbidities, such as possibility of heart failure, were present. 27.

The nurse evaluates the patient’s lifestyle for factors that are contributing to his or her diagnosis of hypertension and then addresses the need to change what factor?

Working outdoors in the sun

Weight lifting at the gym

Married with two children

Exposure to high-frequency noise

Ans:

D Feedback: Factors that are known to increase blood pressure in some people include high levels of psychological stress, exposure to high-frequency noise, a high-salt diet, lack of rest, and genetic predisposition. Working outdoors in the sun may increase risk for skin cancer but does not contribute to hypertension. Weight lifting is good exercise, especially if he uses low weight and frequent repetition. Being married with two children is not a contributing factor for hypertension.

28.

A patient is admitted to the intensive care unit in shock with hypotension. What is an appropriate nursing diagnosis for this patient? Impaired gas exchange

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Deficient fluid volume

Risk for shock

Ineffective peripheral tissue perfusion

Ans:

713

Feedback: An appropriate nursing diagnosis would be ineffective peripheral tissue perfusion. If blood pressure becomes too low, the vital centers in the brain, as well as the rest of the tissues of the body, may not receive enough oxygenated blood to continue functioning. Because the patient is already in shock it would not be a risk diagnosis. There is no indication of altered gas exchange or deficient fluid volume. 29.

The nurse is caring for a patient who takes ramipril (Altace) to treat hypertension. What would be an appropriate nursing diagnosis to include in this patient’s care plan?

Ineffective tissue perfusion related to changes in cardiac output

Acute pain related to skin effects and headache

Altered gas exchange related to unrelenting cough

Impaired body image

Ans:

A Feedback: Nursing diagnoses related to drug therapy might include ineffective tissue perfusion (total body) related to changes in cardiac output because ramipril is associated with adverse effects such as reflex tachycardia, chest pain, angina, heart failure, and cardiac arrhythmias. Although dermatitis and rash may occur, headaches are not an associated adverse effect of this drug. Benazepril, enalapril, and fosinopril can cause an unrelenting cough but ramipril is not associated with this adverse effect. Impaired body image would not be associated with this drug.

30.

What drug is a safe and effective calcium channel blocker only if the nurse administers them as sustained-release or extended-release preparations to treat hypertension?

Aliskiren (Tekturna)

Diltiazem (Cardizem)

Atenolol (Tenormin)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Metoprolol (Lopressor)

Ans:

714

Feedback: The calcium channel blockers available in immediate-release and sustained-release forms that are used in treating hypertension include amlodipine (Norvasc), felodipine (Plendil), isradipine (DynaCirc, DynaCirc CR), and nicardipine (Cardene, Cardene SR). Other calcium channel blockers are safe and effective for this use only if they are given as sustained-release or extended-release preparations. These include diltiazem (Cardizem, Dilacor CR), nifedipine (Procardia XL), nisoldipine (Sular), and verapamil (Calan SR). Aliskiren (Tekturna) is a renin inhibitor. Atenolol (Tenormin) and Metoprolol (Lopressor) are beta-blockers, not calcium channel blockers. 31.

The nurse works in a clinic that has many African American patients. What would the nurse need to consider when caring for patients with hypertension? (Select all that apply.)

African American men are at highest risk for hypertension.

African Americans respond best to single-drug therapy.

African Americans are most responsive to angiotensin-converting enzyme inhibitors.

Increased adverse effects occur when using thiazide and thiazide-like diuretics.

First-line use of a calcium channel blocker with changes to lifestyle is best in African Americans.

Ans:

A, B, D Feedback: In the United States, African Americans are at highest risk for developing hypertension, with men more likely than women to develop the disease. African Americans are most responsive to single-drug therapy (as opposed to combination drug regimens). African Americans are less responsive to angiotensin-converting enzyme inhibitors and beta-blockers. Increased adverse effects (e.g., depression, fatigue, drowsiness) often occur when using thiazide and thiazide-like diuretics. Because African Americans are more responsive to diuretics, the treatment approach should include the first-line use of a diuretic in combination with diet and other lifestyle changes.

32.

The nurse is caring for a patient newly prescribed iloprost (Ventavis). What is the nurse’s priority teaching point about this medication?

Inhale this drug six to nine times a day during waking hours.

Men should not touch this pill.

It is safe for use in pregnancy.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The drug causes peripheral dilation of blood vessels.

Ans:

715

Feedback: Iloprost is an inhaled synthetic prostacyclin that directly dilates the pulmonary vascular bed, reducing pressure in the pulmonary vascular system, increasing gas exchange, and easing the signs and symptoms of pulmonary arterial hypertension. It is inhaled using a special delivery device six to nine times a day while awake. Patients report dizziness and syncope after using the drug and are therefore encouraged to change position slowly. Men and women should not ingest the drug or get it on their skin. It is a pregnancy category C drug and so is not considered safe in pregnancy. 33.

No antihypertensive medication is safe during pregnancy but if the benefit for the mother outweighs the risk to the fetus, what classification of medication can the nurse administer to the hypertensive pregnant woman?

Angiotensin-converting enzyme (ACE) inhibitor

Angiotensin-receptor blocker (ARB)

Renin inhibitor

Calcium channel blocker

Ans:

D Feedback: ACE inhibitors, ARBs, and renin inhibitors should not be used during pregnancy, and women of childbearing age should be advised to use barrier contraceptives to prevent pregnancy while taking these drugs. Calcium channel blockers and vasodilators should not be used in pregnancy unless the benefit to the mother clearly outweighs the potential risk to the fetus.

34.

The patient was unable to achieve an acceptable blood pressure with just lifestyle changes so in stage 2 of the stepped-care management of hypertension plan, an angiotensin-converting enzyme inhibitor was ordered. In step 3, when inadequate response was obtained from step 2, the nurse anticipates the provider will order what?

A diuretic

A beta-blocker

A calcium channel blocker

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

A vasodilator

Ans:

716

Feedback: In step 3, another drug will be added for combined effect. However, fixed-combination drugs should only be used when the patient has been stabilized on each drug separately. A diuretic would be added before adding another class of medication unless the first drug was a diuretic. Vasodilators are generally used only in hypertensive emergencies. 35.

The nurse is caring for a patient with hypertension who is preparing to be discharged from the hospital after suffering a myocardial infarction. What drug might the nurse administer that will both treat his hypertension and reduce myocardial oxygen consumption?

Captopril

Losartan

Diltiazem

Nitroprusside

Ans:

C Feedback: Diltiazem inhibits the movement of calcium ions across the membranes of cardiac and arterial muscle cells, depressing the impulse and leading to slowed conduction, decreased myocardial contractility, and dilation of arterioles, which lowers blood pressure and decreases myocardial oxygen consumption. Captopril, losartan, and nitroprusside do not have actions to reduce myocardial oxygen consumption.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

717

Chapter 44 - Agents for Treating Heart Failure

A patient presents to the emergency department with rales, wheezing, and blood-tinged sputum. What does the nurse recognize that these symptoms indicate?

Cardiomyopathy

Cardiomegaly

Valvular heart disease

Pulmonary edema

Ans:

D Feedback: In left-sided heart failure, the left ventricle pumps inefficiently resulting in a backup of blood into the lungs causing pulmonary vessel congestion and fluid leaks into the alveoli and lung tissue. As more fluid continues to collect in the alveoli, pulmonary edema develops. The patient will present with rales, wheezes, blood-tinged sputum, low oxygenation, and development of a third heart sound. Cardiomyopathy can occur as a result of a viral infection, alcoholism, anabolic steroid abuse, or a collagen disorder. It causes muscle alterations and ineffective contraction and pumping. Cardiomegaly is an enlargement of the heart due to compensatory mechanisms in congestive heart failure (CHF) and leads to ineffective pumping and eventually exacerbated CHF. Valvular heart disease leads to an overload of the ventricles because the valves do not close adequately causing blood to leak backward. This causes muscle stretching and increased demand for oxygen and energy.

What electrolyte inactivates troponin and allows actin and myosin to form a bridge enabling the muscle fibers to contract?

Magnesium

Calcium

Potassium

Sodium

Ans:

B Feedback: Calcium must be present to deactivate troponin so that actin and myosin can react to form actinomycin

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

718

bridges. Potassium, sodium, and magnesium do not affect troponin. 3.

A 62-year-old African American man diagnosed with congestive heart failure and hypertension has BiDil included in his drug therapy. What nursing assessment finding would indicate the patient is developing a complication from this drug?

Alopecia

Photosensitivity

Anorexia

Orthostatic hypotension

Ans:

D Feedback: Orthostatic hypotension is an adverse effect of a combination of isosorbide dinitrate and hydralazine called BiDil. This could lead to safety concerns and should be addressed in drug teaching for this patient. Alopecia, photosensitivity, and anorexia are not adverse effects related to this drug.

The nurse is preparing digoxin for an infant. What is the nurse’s priority intervention?

To perform hand hygiene

To have another nurse check dosage calculations

To check the child’s apical pulse

To identify the patient by checking the ID bracelet

Ans:

B Feedback: The margin of safety for the dosage of this drug is very narrow in children. The dosage needs to be very carefully calculated and should be double-checked by another nurse before administration. The other options are important and the nurse should implement all three. However, these actions are of lower priority.

A patient asks the nurse what cardiac glycosides do to improve his condition. What is the nurse’s best response? They decrease the force of myocardial contractions.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

They help renal blood flow and increase urine output.

They increase heart rate.

They increase conduction velocity.

Ans:

719

Feedback: Cardiac glycosides increase intracellular calcium and allow more calcium to enter myocardial cells. This action causes an increased force of myocardial contraction, an increased cardiac output, and renal perfusion that increases urine output. Cardiac glycosides also serve to slow the heart rate and decrease conduction velocity. 6.

What is the priority nursing assessment for a patient who is about to begin digoxin therapy?

Blood glucose levels

Neurological function

Kidney function

Liver function

Ans:

C Feedback: Digoxin is primarily excreted unchanged in the urine, so caution should be exercised if renal impairment is present. Blood glucose levels and neurological and liver function would not be a priority assessment related to digoxin therapy.

A triage nurse in the emergency department is assessing a 78-year-old man. It is determined that the patient is experiencing severe digoxin toxicity. What drug will the nurse administer immediately?

Inamrinone (Inocor)

Digoxin immune Fab (Digibind)

Verapamil hydrochloride (Calan)

Quinidine sulfate

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

720

B Feedback: Digoxin immune Fab is an antigen-binding fragment derived from specific antidigoxin antibodies. The drug is used for the treatment of life-threatening digoxin intoxication when serum levels are greater than 10 ng/mL. Inamrinone is a phosphodiesterase inhibitor that acts as a cardiotonic agent. Verapamil hydrochloride is a calcium channel blocker. Quinidine is an antiarrhythmic agent that when taken with digoxin increases both the therapeutic and toxic effects of digoxin.

The nurse is providing patient teaching to a patient who has been prescribed digoxin. The patient tells the nurse that she occasionally use herbals and other alternative therapies. What herb would the nurse warn the patient to avoid taking with digoxin?

Black cohosh

Ginseng

Saw palmetto

Valerian

Ans:

B Feedback: Digoxin toxicity can occur if the drug is taken concurrently with licorice, ginseng, or hawthorn. St. John’s wort and psyllium have been shown to decrease the effectiveness of digoxin, so that combination should be avoided. There is no drug-to-drug interaction with black cohosh, saw palmetto, or valerian.

The nurse administers an IV phosphodiesterase inhibitor. What drug will result in forming a precipitate if given via the same IV line without adequate flushing?

Albuterol (Proventil)

Nifedipine (Procardia)

Furosemide (Lasix)

Lovastatin (Mevacor)

Ans:

C Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

721

Furosemide, when given with a phosphodiesterase inhibitor, forms precipitates; therefore, this combination should be avoided. Use alternate lines if both of these drugs are being given IV. There are no known drug-to-drug interactions with albuterol, nifedipine, or lovastatin. 10.

A 6-year-old child weighing 60 pounds has been prescribed oral digoxin (Lanoxin) 30 mcg/kg as a loading dose. How many milligram will she be given?

0.218 mg

0.418 mg

0.618 mg

0.818 mg

Ans:

D Feedback: First, using the formula: 2.2 pounds and 60 pounds: multiplied by kg, determine the child’s weight in kg (60/2.2 = 27.27 kg). Next, using the formula: amount of drug prescribed times weight in kg, determine the dose in mcg the child should receive (30 multiplied by 27.27 = 0. 818 mcg). Then to determine the amount of mg the child should receive, use the formula: 1 mg: 1,000 mcg = X mg: 818 mcg (818/1,000 = 0.818 mg).

11.

The nurse assesses the patient before administering digoxin (Lanoxin) and withholds the drug and notifies the physician with what finding?

Respiratory rate falls below 14

History reveals liver failure

Pulse is 44 beats/min

Blood pressure is 72/40 mm Hg

Ans:

C Feedback: Monitor apical pulse for 1 full minute before administering the drug to assess for adverse effects. Hold the dose if the pulse is less than 60 beats/min in an adult or less than 90 beats/min in an infant; retake pulse in 1 hour. If pulse remains low, document pulse, withhold the drug, and notify the prescriber.

12.

When a drug is said to increase the force of contraction of the heart muscle, the nurse appropriately uses what term?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Positive chronotropic

Positive inotropic

Negative inotropic

Negative dromotropic

Ans:

722

Feedback: Sympathetic stimulation causes an increase in heart rate, blood pressure, and rate and depth of respirations, as well as a positive inotropic effect (increased force of contraction) on the heart and an increase in blood volume (through the release of aldosterone). A negative inotropic effect would be one that decreased the force of a contraction. A negative dromotropic effect is one that slows the conduction of the impulse through the atrioventricular node. A positive chronotropic effect is one that increases the heart rate. 13.

The nurse, caring for a patient who is receiving cardiac glycosides to treat heart failure, will teach the patient to follow what diet?

High sodium, low potassium, high fat

Low sodium, low potassium, low fat

High iron, high calcium, high potassium

Low sodium, high potassium, low fat

Ans:

D Feedback: Restrict dietary sodium to reduce edema in patients receiving cardiac glycosides. If the patient is hyponatremic or using a potassium-losing diuretic, increase potassium in diet, as well as limit fat intake to reduce weight and atherogenic activity.

14.

What order for a digitalizing dose of digoxin (Lanoxin) for a 62-year-old man would the nurse consider appropriate and safe to administer?

1.25 mg IV now

0.75 mg orally now

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

0.25 mg orally every day

1 mg intramuscularly every 4 hours × 24 hours

Ans:

723

Feedback: Digoxin: Adult: loading dose 0.75 to 1.25 mg orally or 0.125 to 0.25 mg IV, then oral maintenance dose of 0.125 to 0.25 mg/d; decrease dose with renal impairment. 15.

After administering an IV dose of digoxin, the nurse would expect to see effects within what period of time?

30 to 120 minutes

5 to 30 minutes

1 hour

2 hours

Ans:

B Feedback: The drug has a rapid onset of action and rapid absorption (30 to 120 minutes when taken orally, 5 to 30 minutes when given IV).

16.

The patient taking digoxin (Lanoxin) has developed an infection. What antibiotic can the nurse safely administer to this patient?

Zithromax

Erythromycin

Tetracycline

Cyclosporine

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

724

Zithromax may be given without impacting the effects of digoxin. There is a risk of increased therapeutic effects and toxic effects of digoxin if it is taken with verapamil, amiodarone, quinidine, quinine, erythromycin, tetracycline, or cyclosporine. If digoxin is combined with any of these drugs, it may be necessary to decrease the digoxin dose to prevent toxicity. If one of these drugs has been part of a medical regimen with digoxin and is discontinued, the digoxin dose may need to be increased. 17.

The 96-year-old patient is receiving digoxin (Lanoxin) and furosemide (Lasix). In the morning, the patient complains of a headache and nausea. What will the nurse do first?

Contact the patient’s physician immediately.

Check her laboratory values and vital signs.

Administer acetaminophen and Maalox.

Give her clear liquids and have her lie down.

Ans:

B Feedback: The nurse will check the patient’s digoxin level and electrolytes. Assessing vital signs is important because the risk of cardiac arrhythmias could increase due to the patient’s receiving furosemide, which is a potassium-losing diuretic. The adverse effects most frequently seen with the cardiac glycosides include headache, weakness, drowsiness, and vision changes (a yellow halo around objects is often reported). Gastrointestinal (GI) upset and anorexia also commonly occur. Only after checking lab values and assessing vital signs might the nurse call the physician. Acetaminophen and Maalox would not be indicated. Having her lie down and restricting her diet to clear liquids would be appropriate but not the first actions.

18.

The nurse provides teaching about digoxin to the 62-year-old patient. The nurse evaluates patient understanding and determines further teaching is needed when the patient says she will do what?

Take the medication daily in the morning.

Take her pulse before taking her dose.

Weigh herself daily at the same time.

Take the medication with a meal.

Ans:

D Feedback: Avoid administering the oral drug with food or antacids to avoid delays in absorption. The other

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

725

answers are appropriate actions for the patient to take when self-administering digoxin. 19.

When administering milrinone (Primacor), the nurse will assess the patient for what common adverse effect?

Hypoglycemia

Confusion

Hypotension

Seizures

Ans:

C Feedback: The adverse effects most frequently seen with these drugs are ventricular arrhythmias (which can progress to fatal ventricular fibrillation), hypotension, and chest pain. Hypoglycemia, confusion, and seizures are not generally adverse effects of milrinone.

20.

The nurse administers a cardiac glycoside for what therapeutic effect?

To decrease cardiac output

To decrease afterload

To increase ventricular rate

To increase the force of the contraction of the heart

Ans:

D Feedback: Cardiac glycosides exert a negative cardiotonic and positive inotropic effect. They do not decrease cardiac output, decrease afterload, or increase the ventricular rate of the heart.

21.

After administering digoxin, what assessment finding would indicate to the nurse that the drug was having the desired effect?

Increased heart size

Increased urinary output

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Decreased respiratory rate

Increased heart rate

Ans:

726

Feedback: As cardiac output improves, so does urinary output due to increased renal perfusion. Respiratory rate and heart size would not be impacted by the drug, although ventricular hypertrophy is a common finding in patients with heart failure. Heart rate would decrease as the force of contraction increases, ejecting more blood with each contraction. 22.

What assessment finding would indicate the patient’s left-sided heart failure is worsening?

Increased jugular venous pressure

Liver enlargement

Increased crackles in lung fields

Increased pulse rate

Ans:

C Feedback: Fluid may accumulate in the lungs due to left sided heart failure. Patients may evidence dyspnea, tachypnea, and orthopnea. Right-sided failure would include increased jugular venous pressure and liver enlargement. Pulse rate could increase or decrease depending on medications administered.

23.

Which drug is in the class of drugs called human B-type natriuretic peptides?

Bosentan (Tracleer)

Milrinone (Primacor)

Digoxin (Lanoxin)

Nesiritide (Natrecor)

Ans:

D Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

727

Nesiritide is the only drug currently available in a class of drugs called human B-type natriuretic peptides. Digoxin is a cardiac glycoside. Milrinone is a phosphodiesterase inhibitor. Bosentan is an endothelin receptor antagonist. 24.

The nurse reviews the patient’s lab results and recognizes the patient is at risk for digoxin toxicity due to what electrolyte imbalance?

Hyperkalemia

Hypokalemia

Hypernatremia

Hyponatremia

Ans:

B Feedback: Electrolyte abnormalities (e.g., increased calcium, decreased potassium, decreased magnesium) could alter the action potential and change the effects of the drug. Hypokalemia and hypomagnesemia increase cardiac excitability and ectopic pacemaker activity leading to dysrhythmias.

25.

What common action do both cardiac glycosides and phosphodiesterase inhibitors have in common related to therapeutic action?

Blocking the enzyme phosphodiesterase

Increasing cellular calcium

Developing ventricular arrhythmias

Metabolizing in the liver and excreted in the urine

Ans:

B Feedback: The phosphodiesterase inhibitors block the enzyme phosphodiesterase. This blocking effect leads to an increase in myocardial cell cyclic adenosine monophosphate (cAMP), which increases calcium levels in the cell (Figure 44.4). Increased cellular calcium causes a stronger contraction and prolongs the effects of sympathetic stimulation, which can lead to vasodilation, increased oxygen consumption, and arrhythmias. Digoxin also increases intracellular calcium and allows more calcium to enter myocardial cells during depolarization.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

26.

728

The nurse evaluates an improvement in the patient’s heart failure (HF) status based on what assessment finding?

Using fewer pillows to sleep

Increased skin turgor

Heart rate regular

Improved mental status

Ans:

A Feedback: The degree of HF is often calculated by the number of pillows required to get relief (e.g., one-pillow, two-pillow, or three-pillow orthopnea). Fluid overload is associated with HF so skin turgor is not an indicator of improvement. Regular heart rate and normal cognition can be found with acute flare-ups of HF so these findings would not indicate improvement.

27.

The nurse suspects the patient may have toxic levels of digoxin in the bloodstream when what is assessed? (Select all that apply.)

Irregular heart rhythms

Nausea

Anorexia

Headache

Peripheral edema

Ans:

A, B, C Feedback: Digoxin toxicity is a serious syndrome that can occur when digoxin levels are too high. The patient may present with anorexia, nausea, vomiting, malaise, depression, irregular heart rhythms including heart block, atrial arrhythmias, and ventricular tachycardia. Peripheral edema is indicative of heart failure, not digoxin toxicity. Headache is not usually associated with digoxin toxicity.

28.

The patient has been prescribed inamrinone (Inocor). Before administering the drug the nurse needs to know the drug has what pharmacokinetic effect?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Decrease in cyclic adenosine monophosphate (cAMP)

Decrease in cardiac output

Increase in cardiac preload

Increase in cAMP

Ans:

729

Feedback: Inamrinone is a phosphodiesterase inhibitor that blocks the enzyme phosphodiesterase. This blocking effect leads to an increase in myocardial cell cAMP, which increases calcium levels in the cell. These drugs do not decrease cardiac output or increase cardiac preload. 29.

The patient has just been prescribed milrinone (Primacor). The nurse recognizes the drug is contraindicated due to the patient’s allergy to what?

Penicillins

Salicylates

Opioids

Bisulfites

Ans:

D Feedback: Phosphodiesterase inhibitors are contraindicated in the presence of allergy to the drug or to bisulfites. Penicillins, salicylates, and opioids have no contraindications when used with milrinone.

30.

The nurse administers a human B-type natriuretic peptide with the expectation it will have what action?

Decrease blood volume

Increase force of cardiac contraction

Reduce venous return

Lighten the heart’s workload

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

730

C Feedback: Human B-type natriuretic peptides are normally produced by myocardial cells as a compensatory response to increased cardiac workload and increased stimulation by the stress hormones. They bind to endothelial cells, leading to dilation and resulting in decreased venous return, peripheral resistance, and cardiac workload. They also suppress the body’s response to the stress hormones, leading to increased fluid loss and further decrease in cardiac workload. Diuretics decrease blood volume, cardiac glycosides increase force of contraction, and vasodilators lighten the heart’s workload.

31.

The nurse expects the patient’s heart failure (HF) is caused by what diagnosis that is responsible for 95% of the cases diagnosed?

Cardiomyopathy

Hypertension

Congenital anomaly

Coronary artery disease (CAD)

Ans:

D Feedback: CAD is the leading cause of HF, accounting for approximately 95% of the cases diagnosed. CAD results in an insufficient supply of blood to meet the oxygen demands of the myocardium. Consequently, the muscles become hypoxic and can no longer function efficiently. When CAD evolves into a myocardial infarction, muscle cells die or are damaged, leading to an inefficient pumping effort. Cardiomyopathy, hypertension, and congenital anomaly are rarely associated with heart failure.

32.

The nurse prepares to administer a phosphodiesterase inhibitor by what route?

Oral

Subcutaneous

Intramuscular

Ans:

B Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

731

Phosphodiesterase inhibitors are only given IV. They cannot be given orally, intramuscularly, or subcutaneously. 33.

The nurse is caring for a patient who has digoxin toxicity. As the nurse assesses the changes in the patient’s daily activities, what finding could indicate the cause of the toxic level?

The patient has been sleeping more lately.

The patient took nitroglycerin for chest pain twice yesterday.

The patient’s daughter brought her a bag of licorice that she has been enjoying.

The patient’s intake of sodium increased lately because she’s been eating seafood.

Ans:

C Feedback: Increased digoxin toxicity has been reported with ginseng, hawthorn, and licorice. Patients should be advised to avoid these combinations. Increased sodium intake will exacerbate the patient’s heart failure, which might explain why she is sleeping more and requiring nitroglycerin but these actions did not contribute to the digoxin toxicity.

34.

The nurse admits a patient to the constant care unit with a digoxin level of 11 ng/mL and a serum potassium level of 5.2 mEq/L. Digoxin immune Fab is administered. The next day, the patient’s digoxin level remains elevated. What action does the nurse anticipate?

Administer digoxin immune Fab again.

Administer a reduced dosage of digoxin.

Continue to monitor the patient’s digoxin level daily.

Notify the health care provider of the elevated level.

Ans:

C Feedback: Serum digoxin levels will be very high and unreliable for about 3 days after the digoxin immune Fab infusion because of the high levels of digoxin in the blood. The patient should not be redigitalized for several days to 1 week after digoxin immune Fab has been used, because of the potential of fragments remaining in the blood. There is no need to notify the health care provider or to administer digoxin immune Fab again.

35.

The nurse is preparing to administer a digitalizing dosage of digoxin to a geriatric patient. What factors

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

732

will the nurse assess for first to avoid digoxin toxicity? (Select all that apply.) A)

Renal function

Low body mass

Hydration

Assessment of pulse

Cognitive function

Ans:

A, B, C Feedback: Factors that may contribute to elevated digoxin levels include impaired renal function, low body mass, and dehydration. Assessment of pulse and cognitive function are always important when caring for a geriatric patient, but they will not contribute to elevated digoxin levels.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

733

Chapter 45 - Antiarrhythmic Agents

A patient with a history of atrial fibrillation has had a worsening of his or her condition. The nurse knows that the drug of choice for long-term stabilization of atrial fibrillation following electrocardioversion is what?

Disopyramide (Norpace)

Moricizine (Ethmozine)

Procainamide (Pronestyl)

Quinidine (generic)

Ans:

D Feedback: Quinidine is often the drug of choice for long-term stabilization of atrial fibrillation after the rhythm is converted by electrocardioversion. Quinidine is a class I antiarrhythmic and stabilizes the cell membrane by binding to sodium channels, depressing phase 0 of the action potential, and changing the duration of the action potential. Disopyramide, moricizine, and procainamide are all used in the treatment of life-threatening ventricular arrhythmias.

What class of antiarrhythmics drug blocks potassium channels, prolonging phase 3 of the action potential and slowing the rate and conduction of the heart?

III

Ans:

C Feedback: The class III antiarrhythmics block potassium, prolonging phase 3 of the action potential, which prolongs repolarization and slows the rate and conduction of the heart. Class I drugs block the sodium channels in the cell membrane during an action potential. Class II drugs are beta-adrenergic blockers that block beta-receptors, causing a depression of phase 4 of the action potential. Class IV drugs block calcium channels in the cell membrane leading to a depression of depolarization and a prolongation of

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734

phases I and II of repolarization, which slows automaticity. 3.

The nurse is caring for a pediatric patient who has been diagnosed with paroxysmal atrial tachycardia. The order reads digoxin 10 mcg/kg orally. The child weighs 44 pounds. How many mcg will the nurse administer?

50 mcg

100 mcg

150 mcg

200 mcg

Ans:

D Feedback: The nurse will administer 200 mcg. (2.2 pounds: 1 kg = X: 20 kg, 20(10) = 200 mcg).

The nurse is providing drug teaching about quinidine in preparation for the patient’s discharge. The nurse discusses drugfood interactions and advises the patient to drink what?

Apple juice

Grapefruit juice

Milk

Orange juice

Ans:

A Feedback: Apple juice would be the best choice. Quinidine requires a slightly acidic urine (normal state) for excretion. Patients receiving quinidine should avoid foods that alkalinize the urine (e.g., citrus juices, vegetables, antacids, milk products), which could lead to increased quinidine levels and toxicity. Grapefruit juice has been shown to interfere with the metabolism of quinidine, leading to increased serum levels and toxic effects; this combination should be avoided.

A patient has had sotalol (Betapace) ordered for treatment of a ventricular arrhythmia. What will the nurse consider when administering the drug? Sotalol has a very short duration of action

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Food increases the bioavailability of the drug

Absorption of sotalol is decreased by the presence of food

The drug is best administered intramuscularly

Ans:

735

Feedback: This drug should not be taken with food because absorption is decreased. The drug should be given 1 hour before or 2 hours after a meal. Adenosine, not sotalol, has a very short duration of action and food increases the bioavailability of propranolol. Sotalol is administered by oral route only. 6.

The nurse is caring for a patient who reports insomnia since starting the antiarrhythmic agent prescribed for him or her. What antiarrhythmic agent would the nurse expect this patient is taking?

Disopyramide (Norpace)

Amiodarone (Cordarone)

Procainamide (Pronestyl)

Propranolol (Inderal)

Ans:

D Feedback: Class II antiarrhythmics can cause insomnia. The adverse effects associated with class II antiarrhythmics are related to the effects of blocking beta-receptors in the sympathetic nervous system. CNS effects include dizziness, insomnia, unusual dreams, and fatigue. Disopyramide and procainamide are class I agents and do not cause insomnia. Amiodarone is a class III drug and is not associated with insomnia.

A patient with impaired renal function is to receive dofetilide (Tikosyn) for conversion of atrial fibrillation. What is the nurse’s priority assessment before administering the drug?

Check the patient’s creatinine level.

Measure the urine output.

Listen to breath sounds.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Measure the PR interval on the electrocardiogram.

Ans:

736

Feedback: When giving dofetilide to a patient with renal dysfunction, the dosage must be calculated according to the patient’s creatinine level to ensure the therapeutic effect while limiting toxicity. This drug can only be administered by oral route. Intake and output as well as breath sounds may need to be assessed but are not related to administering the drug. A patient in atrial fibrillation will not have a measurable PR interval. 8.

A nurse is caring for a patient who has had disopyramide (Norpace), ordered. Before administering disopyramide (Norpace) what is the nurse’s priority action to maintain safety?

Offer the patient something to drink.

Ask the patient if he or she needs to void.

Raise all side rails.

Place the call button within reach.

Ans:

C Feedback: When administering disopyramide, the nurse should make sure that all side-rails are up. The central nervous system effects of the drug can include dizziness, drowsiness, fatigue, twitching, mouth numbness, slurred speech, vision changes, and tremors that can progress to convulsions. The other three options are appropriate and placing the call button within reach can also be considered a safety measure; however nothing has a higher priority than raising the bed’s side-rails.

The nurse sees a patient in an outpatient setting who is given a new prescription for an antiarrhythmic medication to treat premature atrial contractions (PAC). The nurse has limited time with the patient and addresses what priority nursing diagnosis?

Decreased cardiac output

Alteration in comfort

Deficient knowledge

Potential for injury

Ans:

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737

Feedback: The patient received a new prescription and needs information about how to take the medication, when to call the provider, and potential adverse effects so the priority nursing diagnosis is deficient knowledge. It is unknown what arrhythmia the patient is treating and without this information it is impossible to know what the impact on cardiac output, comfort and potential for injury may be. 10.

You are caring for a patient who takes an antiarrhythmic agent. What would be a priority nursing assessment before administering this drug?

Assess mental status.

Assess breath sounds.

Assess pulses and blood pressure.

Assess urine output.

Ans:

C Feedback: The nurse should continually monitor cardiac rate and rhythm when administering an antiarrhythmic agent to detect potentially serious adverse effects and to evaluate drug effectiveness. All of the other options are appropriate assessments but are not the priority assessment.

11.

The nurse is caring for a patient receiving propranolol. What problems, reported by the patient, does the nurse suspect is caused by the drug? (Select all that apply.)

Seizures

Rash

Atrioventricular (AV) block

Bronchospasm

Dreams

Ans:

C, D, E Feedback: The adverse effects associated with class II antiarrhythmics are related to the effects of blocking beta-

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738

receptors in the sympathetic nervous system. Central nervous system effects include dizziness, insomnia, unusual dreams, and fatigue. Cardiovascular symptoms can include hypotension, bradycardia, AV block, arrhythmias, and alterations in peripheral perfusion. Respiratory effects can include bronchospasm and dyspnea. GI problems frequently include nausea, vomiting, anorexia, constipation, and diarrhea. Other effects to anticipate include a loss of libido, decreased exercise tolerance, and alterations in blood glucose levels. Seizures and rash are not usually associated with the adverse effects of propranolol. 12.

The nurse teaches the patient receiving propranolol (Inderal) at home for management of a ventricular dysrhythmia to monitor what parameter?

Daily fluid intake

Daily blood pressure

Weekly weight

Weekly pulse

Ans:

B Feedback: Hypotension can occur with propranolol, which is a beta-blocker, so patients should check their blood pressure and pulse every day. Propranolol does not require that fluid intake be measured. propranolol also will not require daily weight taking, but it may be necessary with a diagnosis of propranolol.

13.

The emergency department nurse is administering IV lidocaine to a patient. What adverse effect of lidocaine therapy should the nurse assess for?

Dysphagia

Dizziness

Excessive bruising

Tinnitus

Ans:

B Feedback: Adverse effects include dizziness, light-headedness, fatigue, arrhythmias, cardiac arrest, nausea, vomiting, anaphylactoid reactions, hypotension, and vasodilation. Dysphagia, bruising, and tinnitus are not usually associated with lidocaine.

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14.

739

The nurse administers a bolus of lidocaine and follows it with a continuous infusion at what rate?

0.25 to 0.75 mg/min

1 to 4 mg/min

6 to 8 mg/min

10 to 20 mg/min

Ans:

B Feedback: Lidocaine may be delivered at 1 to 4 mg/min after a bolus. Therefore, the other options are incorrect.

15.

The nurse administers what drug to terminate supraventricular tachycardia?

Lidocaine (Lidocaine Parenteral)

Flecainide (Tambocor)

Adenosine (Adenocard)

Dronedarone (Multaq)

Ans:

C Feedback: Adenosine depresses conduction at the atrioventricular node and is used to restore NSR (normal sinus rhythm) in patients with paroxysmal supraventricular tachycardia. Adenosine is used to treat supraventricular tachycardias, including those caused by the use of alternate conduction pathways in adults. Lidocaine is used to treat life-threatening ventricular arrhythmias during myocardial infarction or cardiac surgery; it is also used as a bolus injection in emergencies when monitoring is not available to document exact arrhythmia. Flecainide is used to treat life-threatening ventricular arrhythmias in adults; prevention of paroxysmal atrial tachycardia (PAT) in symptomatic patients with no structural heart defect. Dronedarone is used to treat paroxysmal or persistent atrial fibrillation or atrial flutter in patients with multiple risk factors for coronary artery disease who are currently in sinus rhythm or scheduled for conversion.

16. A)

For what condition would the nurse expect to administer lidocaine via IV drip? Decrease in arterial oxygen saturation (SaO2)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Increase in blood pressure

Multiple premature ventricular contractions (PVCs)

Increase in intracranial pressure (ICP)

Ans:

740

Feedback: Lidocaine drips are indicated for the treatment of life-threatening ventricular arrhythmias such as long or frequent runs of PVCs. Lidocaine would not be indicated for the treatment of hypoxia, hypertension, or increased ICP. 17.

The nurse is caring for a patient who takes an antiarrhythmic agent and is reporting a complete lack of appetite. Which cardiac antiarrhythmic agent would the nurse suspect the patient is taking?

Diltiazem (Cardizem)

Propranolol (Inderal)

Lidocaine (Lidocaine Parenteral)

Amiodarone (Cordarone)

Ans:

B Feedback: Propranolol frequently causes gastrointestinal (GI) problems such as nausea, vomiting, anorexia, constipation, and diarrhea. Diltiazem could cause nausea and vomiting but would not cause anorexia. Lidocaine can lead to changes in taste, nausea, and vomiting but does not cause anorexia. Amiodarone has adverse effects including nausea, vomiting, GI distress, weakness, dizziness, hypotension, heart failure, arrhythmia, a potentially fatal liver toxicity, and ocular abnormalities but does not cause anorexia.

18.

A 92-year-old patient is being sent home on disopyramide (Norpace) for a ventricular arrhythmia. He asks the nurse why he must continue to take this drug. The nurse’s best response would be that failure to treat a ventricular arrhythmia may what?

Lead to renal failure

Result in hypertension

Result in death

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Cause heart failure

Ans:

741

Feedback: Ventricular arrhythmias cause a dramatic reduction in cardiac output and will result in death if not treated. The patient needs to be taught the importance of taking his medication every day as ordered. Generally, ventricular arrhythmias are not associated with renal failure, hypertension, or heart failure. 19.

The nurse is providing drug teaching for a patient who is to be discharged taking dofetilide (Tikosyn). What drug will the nurse teach the patient to avoid due to a drug-drug interaction?

Cimetidine

Furosemide

Acetaminophen

Antacids

Ans:

A Feedback: There is an increased risk of serious adverse effects if dofetilide is combined with ketoconazole, cimetidine, or verapamil, so these combinations should be avoided. There is no known increased risk associated with furosemide, acetaminophen, or antacids but other specific drugdrug interaction are reported, so it is important to check a current drug handbook before administering these medications.

20.

The patient asks the nurse, Will I have to take this antiarrhythmic agent for the rest of my life? The nurse, having reviewed the CAST study, responds by saying what?

Yes, you will have to take this drug for life.

The drug is indicated for short-term treatment of life-threatening ventricular arrhythmias.

This drug may need to be changed but you’ll take an antiarrhythmic for life.

After the arrhythmia is corrected, the drug will be stopped.

Ans:

B Feedback:

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742

The CAST study, a large research study run by the National Heart and Lung Institute, found that longterm treatment of arrhythmias may have an uncertain effect on mortality, and in some cases may actually lead to increased cardiac death, which is the basis for the current indication for antiarrhythmics to be used only short-term to treat life-threatening ventricular arrhythmias. 21.

What patient factor would result in the nurse administering a reduced dosage of disopyramide (Norpace)?

Dehydration

Hypertension

Renal impairment

Chronic diarrhea

Ans:

C Feedback: Caution should be used with renal or hepatic dysfunction, which could interfere with the biotransformation and excretion of these drugs. Caution is not indicated with the findings of dehydration, hypertension, or chronic diarrhea.

22.

The nurse is administering an intravenous infusion of amiodarone (Cordarone). What should the nurse be aware of?

The possible drugdrug interaction with nonsteroidal anti-inflammatory drugs (NSAIDs)

The possible development of very serious cardiac arrhythmias

The possible development of peripheral edema

The possible development of a fatal renal toxicity

Ans:

B Feedback: Amiodarone has been associated with a potentially fatal liver toxicity rather than a renal toxicity, ocular abnormalities, and the development of very serious cardiac arrhythmias. Sotalol may have a loss of effectiveness if combined with NSAIDs. Diltiazem is associated with peripheral edema.

23.

The nurse reviews the patient’s medical history and determines class II antiarrhythmics are contraindicated due to the patient’s history of what condition?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Asthma

Colitis

Migraine headache

Antidiarrheals

Ans:

743

Feedback: Class II antiarrhythmics are contraindicated in patients with asthma because they could worsen the condition due to blockage of beta-receptors. They are not contraindicated in patients with colitis, migraine headache, or diarrhea. 24.

What would the nurse teach the diabetic patient to monitor for when beginning a class II antidysrhythmic drug regimen in addition to insulin?

Weight loss

Reduced peripheral perfusion

Hypoglycemia

Exercise intolerance

Ans:

C Feedback: Increased hypoglycemia is possible if these drugs are combined with insulin; so patients should be taught to monitor their blood sugar levels often. Recurrent hypoglycemic episodes may indicate the need to reduce insulin dosage, but this advice would need to come from the health care provider. Class II antiarrhythmic drugs are normally not associated with weight loss, reduced peripheral perfusion, or exercise intolerance.

25.

The nurse assesses the patient’s rhythm strip and notes several premature ventricular contractions, which the nurse recognizes is caused by what?

Stimulation of the ventricles from an ectopic focus in the ventricles

Stimulation of the ventricles from the atrioventricular node

Stimulation of the ventricles from the Purkinje fibers

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Stimulation of the ventricles from the bundle of His

Ans:

744

Feedback: Premature ventricular contractions are stimulations of the cells caused by an ectopic focus in the ventricles causing an early contraction. The source of these ectopic foci could be anywhere within the ventricles, but the end result is reduced cardiac output due to reduced force of contraction. 26.

When the nurse is caring for a patient with a cardiac arrhythmia, the priority goal for the patient is what?

To maintain nutritional intake

To maintain fluid intake

To maintain cardiac output

To maintain urine output

Ans:

C Feedback: Disruptions in the normal rhythm of the heart can interfere with myocardial contractions and affect the cardiac output, the amount of blood pumped with each beat. Arrhythmias that seriously disrupt cardiac output can be fatal. Therefore, the primary goal of treating a cardiac arrhythmia is to maintain adequate cardiac output to support life. The other goals may be important to individual patient care, but sustaining life takes priority.

27.

The nurse is caring for a 3-year-old awaiting a heart transplant who requires an antiarrhythmic agent to control a supraventricular arrhythmia. What drug, if ordered, would the nurse question?

Digoxin

Propranolol

Procainamide

Verapamil

Ans:

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745

Feedback: Verapamil should be avoided in children and, if ordered, would require the nurse to question the drug. Adenosine, propranolol, procainamide, and digoxin have been successfully used to treat supraventricular arrhythmias, with propranolol and digoxin being the drugs of choice for long-term management. 28.

The nurse suspects drug toxicity in the patient who has been receiving lidocaine by infusion over the past 2 days to control a ventricular arrhythmia. What assessment would the nurse perform to determine the accuracy of the suspicion of toxicity?

Neurological assessment

Serum lidocaine level

Renal function studies

Hepatic function studies

Ans:

B Feedback: If lidocaine is used for ventricular arrhythmias related to cardiac surgery or digoxin toxicity, serum levels should be monitored regularly to determine the appropriate dose and to avoid the potential for serious proarrhythmias and other adverse effects. Neurological assessment may indicate adverse effects but would not confirm lidocaine toxicity. Renal and hepatic function would not confirm lidocaine toxicity.

29.

The nurse performs an electrocardiogram and finds the older adult patient is in atrial fibrillation (AF). Time of onset is unknown but could be as long as 3 months earlier when the patient was last assessed. What drug will the nurse expect to be ordered?

Anticoagulant

Digoxin

Quinidine

Ibutilide

Ans:

A Feedback: If the onset of AF is not known and it is suspected that the atria may have been fibrillating for longer

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746

than 1 week, the patient is better off staying in AF without drug therapy or electrocardioversion. Prophylactic oral anticoagulants are given to decrease the risk of clot formation and emboli being pumped into the system. In 2011, the American Heart Association and American College of Cardiology endorsed dabigatran (Pradaxa) as the anticoagulant of choice for prophylaxis in AF. Conversion in this case could result in potentially life-threatening embolization of the lungs, brain, or other tissues. Administration of other antiarrhythmics would not be indicated. 30.

What nursing assessment will the nurse perform to determine the hemodynamic effect of the patient’s arrhythmia?

Obtain an electrocardiographic rhythm strip.

Obtain a serum drug level.

Assess the patient’s level of consciousness.

Assess the patient’s blood pressure (BP) and pulse rate.

Ans:

D Feedback: BP and pulse rate are indicators of the hemodynamic effect of arrhythmias and are nursing measures that do not require a physician’s order. Obtaining an electrocardiogram or checking drug levels requires a physician’s order. The patient will be conscious and alert with non-life-threatening arrhythmias, even when cardiac output is reduced. Serum drug levels would indicate the therapeutic or toxic level of drugs in the body but would not indicate hemodynamic effects of the drug.

31.

What class of antiarrhythmics will the nurse administer to the patient in symptomatic paroxysmal tachycardia because it markedly depresses phase 0 with extreme slowing of conduction?

Class Ib

Class Ic

Class II

Class III

Ans:

B Feedback: Class Ic drugs markedly depress phase 0, with a resultant extreme slowing of conduction, but have little effect on the duration of the action potential. As a result, they are indicated for the treatment of paroxysmal tachycardia. Class Ib drugs depress phase 0 somewhat and actually shorten the duration of the action potential. The class II antiarrhythmics are beta-adrenergic blockers that block beta-receptors,

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

747

causing a depression of phase 4 of the action potential. The class III antiarrhythmics block potassium channels and slow the outward movement of potassium during phase 3 of the action potential, thus prolonging it. 32.

What class of antiarrhythmic agents does the nurse administer to slow the outward movement of potassium during phase 3 of the action potential?

Class Ib

Class Ic

Class II

Class III

Ans:

D Feedback: The class III antiarrhythmics block potassium channels and slow the outward movement of potassium during phase 3 of the action potential, prolonging it. Class Ib drugs depress phase 0 somewhat and actually shorten the duration of the action potential. Class Ic drugs markedly depress phase 0, with a resultant extreme slowing of conduction, but have little effect on the duration of the action potential. The class II antiarrhythmics are beta-adrenergic blockers that block beta-receptors, causing a depression of phase 4 of the action potential.

33.

What class of antiarrhythmic agents does the nurse administer to depress generation of the action potentials and delaying phases 1 and 2 of repolarization?

Class Ib

Class II

Class III

Class IV

Ans:

D Feedback: The class IV antiarrhythmics block the movement of calcium ions across the cell membrane, depressing the generation of action potentials and delaying phases 1 and 2 of repolarization, which slows automaticity and conduction. Class Ib drugs depress phase 0 somewhat and actually shorten the duration of the action potential. The class II antiarrhythmics are beta-adrenergic blockers that block beta-receptors, causing a depression of phase 4 of the action potential. The class III antiarrhythmics block potassium channels and slow the outward movement of potassium during phase 3 of the action

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

748

potential, thus prolonging it. 34.

The nurse is teaching a class for newly hired cardiac care nurses and is discussing dronedarone (Multaq). What statement, if made by the nurse, is accurate? (Select all that apply.)

Dronedarone has properties of all four classes of antiarrhythmics.

Dronedarone reduces the risk of hospitalization in patients in atrial fibrillation.

Dronedarone has many drugdrug interactions that need to be reviewed.

It is an oral drug taken once a day.

Common adverse effects of dronedarone include ventricular arrhythmias.

Ans:

A, B, C Feedback: Dronedarone has properties of all four classes of antiarrhythmics and the mechanism by which it helps suppress atrial arrhythmias is not fully understood. It is used to reduce the risk of hospitalization in patients with paroxysmal or persistent atrial fibrillation or flutter who have risk factors for cardiovascular disease and who are in sinus rhythm or are scheduled to be converted to sinus rhythm. The drug is taken orally twice a day. Many drugdrug interactions have been associated with the drug and this situation should always be reviewed before starting or stopping any drugs while on this drug. Grapefruit juice should not be consumed while taking this drug. The most common adverse effects seen with dronedarone are heart failure, prolonged QT interval, nausea, diarrhea, and rash. It should never be used during pregnancy because it has been associated with fetal abnormalities.

35.

What class of antiarrhythmic agent would the nurse be most likely to administer to a lactating new mother?

Class Ib

Class II

Class III

Class IV

Ans:

B Feedback: Class I, III, and IV agents should not be used during lactation; if they are needed, another method of feeding the baby should be used. This leaves only class II drugs for consideration if the mother is

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

lactating.

749

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750

Chapter 46 - Antianginal Agents

A nurse is providing patient teaching to a patient who has been experiencing unstable angina. What will the nurse’s explanation of this condition include?

A coronary vessel has become completely occluded and is unable to deliver blood to your heart.

The pain is caused by a spasm of a blood vessel, not just from the vessel narrowing.

There is serious narrowing of a coronary artery that is causing a reduction in oxygen to the heart.

Your body’s response to a lack of oxygen in the heart muscle is pain.

Ans:

C Feedback: Unstable angina is described as increased narrowing of coronary arteries with the heart experiencing episodes of ischemia even at rest. If a coronary vessel is completely occluded and unable to deliver blood to the cardiac muscle, a myocardial infarction has occurred. Prinzmetal’s angina is an unusual form of angina caused by spasm of the blood vessel and not just by vessel narrowing. Although pain is the body’s response to ischemia in the heart muscle, this description could encompass angina or a myocardial infarction and is not specific enough to explain the condition.

The nurse cautions the patient taking nadolol (Corgard) for angina that they may experience what adverse effect?

Dry mouth

Decreased exercise tolerance

Constipation

Problems with urination

Ans:

B Feedback: Nadolol is a beta-blocker that can cause a decreased tolerance to exercise because of the inability to experience the effects of the stress reaction. Dry mouth, constipation, and problems with urination are effects often seen with anticholinergic drugs but not with beta-blockers.

A patient who has been taking cyclosporine to prevent rejection of a kidney transplant has had

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751

diltiazem ordered. Why would the nurse question this order? A)

Serious diltiazem toxicity could occur.

The combination may result in elevated or even toxic cyclosporine levels.

The combination could lead to kidney rejection.

A kidney recipient would not effectively excrete the diltiazem.

Ans:

B Feedback: Potentially serious adverse effects to keep in mind include increased serum levels and toxicity of cyclosporine if they are taken with diltiazem. This combination is not associated with diltiazem toxicity. A functioning implanted kidney should still excrete diltiazem. This drug would not cause rejection of a transplanted kidney.

A nurse is teaching the patient newly prescribed sublingual nitroglycerin how to take the medication. What will the nurse instruct the patient to do first?

To check his radial pulse

To place the tablet in the buccal cavity

To take a sip of water

To lie down for 15 minutes before administration

Ans:

C Feedback: The nurse should instruct the patient to take a sip of water to moisten the mucous membranes so the tablet will dissolve quickly. The patient does not need to take his pulse or lie down before drug administration. For sublingual administration, the patient will place the tablet under his tongue and not in the buccal cavity (cheek area).

The nurse, caring for a patient taking a beta-blocker and a nitrate to treat angina, recognizes the need for careful monitoring as the result of what secondary diagnosis?

Chronic obstructive pulmonary disease (COPD)

Rheumatoid arthritis (RA)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Irritable bowel syndrome (IBS)

Chronic urinary tract infection (UTI)

Ans:

752

Feedback: The nurse should assess for COPD, because the effect of beta-blockers in reducing effects of the sympathetic nervous system could exacerbate the respiratory condition. RA, IBS, and chronic UTI are not affected by the use of beta-blockers or nitrates to treat angina. 6.

What drug would the nurse administer to the patient to control angina caused by atherosclerosis that would also slow the development of further plaque buildup on the arterial wall?

Diltiazem (Cardizem)

Propranolol (Inderal)

Amyl Nitrates (generic)

Isosorbide dinitrate (Isordil)

Ans:

A Feedback: Diltiazem is a calcium channel blocker that is indicated to treat Prinzmetal’s angina, chronic angina, effort-associated angina, and hypertension. Research has indicated these agents slow the development of atherosclerosis. Beta-blockers are indicated for long-term management of angina caused by atherosclerosis, but they do not slow the development of plaque deposits on the artery wall. Propranolol is a beta-blocker. Isosorbide dinitrate and amyl nitrate are nitrates and are indicated for relief acute anginal pain, but they are not used to prevent angina and have no effect on the progression of atherosclerosis.

An older adult patient who is taking metformin (Glucophage) has just been seen in the clinic. The doctor has ordered metoprolol (Toprol) for angina. What assessment data should the nurse monitor due to this drug combination?

Blood pressure

Blood glucose

Heart rate

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Intake and output

Ans:

753

Feedback: Metformin is an antidiabetic drug and the nurse should monitor the patient’s blood glucose frequently throughout the day. The patient will not have the usual signs and symptoms of hypoglycemia or hyperglycemia. Blood pressure, heart rate, and intake and output would not be affected by this drugdrug combination. 8.

A patient is to receive diltiazem (Cardizem) 360 mg/d orally in four divided doses. How many mg will the nurse administer per dose?

30 mg

60 mg

90 mg

120 mg

Ans:

C Feedback: The patient will take 90 mg/dose (360 divided by 4 doses equals 90 mg/dose). Therefore, the other options are incorrect.

The patient, diagnosed with angina, tells the nurse he is having chest pain. There is an order for oral sublingual nitroglycerin as needed. What action should the nurse take?

Place two nitroglycerin tablets under the patient’s tongue and call the physician.

Place one tablet under the patient’s tongue and repeat every 5 minutes for total of three tablets until pain has been relieved.

Have the patient swallow a tablet with a full glass of water and repeat in 10 minutes.

Apply a nitroglycerin transdermal patch to the patient’s back.

Ans:

B Feedback:

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754

The correct administration for sublingual administration is to place one tablet under the patient’s tongue and repeat every 5 minutes for a total of three tablets until pain is relieved. If pain is not relieved after three sublingual tablets, the health care provider should be notified. Transdermal application would be inappropriate and nitroglycerin is not swallowed. Administering two tablets at one time would be an inappropriate dosage and could cause serious adverse effects. 10.

The nurse is caring for a patient who is complaining of chest pain. The nurse is to administer 40 mg of isosorbide dinitrate (Isordil) to the patient. What is the nurse’s priority assessment before administering the drug?

Jaundice

Headache

Anemia

Sinusitis

Ans:

C Feedback: The nurse should assess for anemia because the decrease in cardiac output could be detrimental in a patient who already has a decreased ability to deliver oxygen because of a low red blood cell count. Jaundice and sinusitis would not be a contraindication to the drug. Headache is an adverse effect of isosorbide and would be expected after administration of the drug.

11.

A 49-year-old patient is admitted with uncontrolled chest pain. He is currently taking nitroglycerin (Nitrostat). His physician orders nifedipine (Adalat) added to his regimen. The nurse should observe the patient for what adverse effects?

Hypokalemia

Renal insufficiency

Hypotension

Hypoglycemia

Ans:

C Feedback: Both nitroglycerin and nifedipine have hypotension as a potential adverse effect so frequent assessment of blood pressure is important. Other cardiovascular effects include bradycardia, peripheral edema, and heart block. Skin effects include flushing and rash. Adverse effects do not include renal insufficiency, hypokalemia, or hypoglycemia.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

12.

755

What statements by the 54-year-old patient indicates an understanding of the nurse’s teaching about how to take sublingual nitroglycerin?

A headache means a toxic level has been reached.

I can take up to 3 tablets at 5-minute intervals.

I can take as much nitroglycerin as I need because it is not habit forming.

If I become dizzy after taking the medication, I should stop taking it.

Ans:

B Feedback: Sublingual nitroglycerin may be taken at 5-minute intervals up to a maximum of three doses to relieve anginal chest pain. Headaches are very common due to vasodilation and do not indicate a toxic level. Nitroglycerin causes significant peripheral vasodilation in addition to its therapeutic effects of coronary artery dilation so no more than three tablets should be taken, even though it is not habit forming. Dizziness could be an adverse effect of the drug or a manifestation of inadequate cardiac output, but it would not indicate the patient should stop taking it.

13.

When the nurse administers a beta-adrenergic blocker to the patient with angina, the nurse expects the drug will help to control angina, but it also has what other effect?

Increased heart rate

Increased oxygen consumption

Decreased strength of heart muscle contraction

Decreased urinary output

Ans:

C Feedback: Beta-blockers competitively block beta-adrenergic receptors in the heart and kidneys, decreasing the influence of the sympathetic nervous system on these tissues and the excitability of the heart. As a result, it decreases the strength of cardiac contraction, reducing cardiac output, which results in lowered blood pressure and decreased cardiac workload. It does not impact urinary output.

14.

The nurse is caring for a patient who takes nitroglycerin sublingually. When providing patient education, the nurse would tell the patient that she can expect relief of chest pain within what period of time?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

1 to 3 minutes

5 to 10 minutes

15 to 20 minutes

30 to 60 minutes

Ans:

756

Feedback: Nitroglycerin acts within 1 to 3 minutes. Other options are incorrect. 15.

When providing patient education about nitroglycerin to the patient, what would the nurse include in the teaching plan about a nitroglycerin patch?

It only has to be administered once a week.

It is more effective than tablets in treating angina.

It has a longer duration of action.

It is faster acting than the tablets.

Ans:

C Feedback: Transdermal nitroglycerin has a long 24-hour duration of action compared with the sublingual form that lasts 30 to 60 minutes or oral tablets that last 8 to 12 hours. Transdermal patches are neither more nor less effective, but rather it is the speed of onset and duration of action that differ.

16.

Which statement by the patient would lead the nurse to believe that he has understood the teaching provided regarding angina?

I will not exercise because it precipitates angina.

As long as I take the medicine, I need make no lifestyle change.

There is no correlation between my hypertension and angina.

Heavy meals and cigarette smoking can precipitate an angina attack.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

757

D Feedback: Avoid stressful activities, especially in combination. For example, if you eat a big meal, do not drink coffee or alcoholic beverages with that meal. If you have just eaten a big meal, do not climb stairs; rest for a while. However, exercise is important and should not be eliminated, but managed in coordination with other activities. Smoking causes vasoconstriction that can result in angina attacks so lifestyle changes like reducing fat and calories in the diet, moderate exercise, reducing alcohol intake and avoiding smoking are all healthful choices. Hypertension does increase the risk of angina and coronary artery disease.

17.

The nurse is caring for a patient who is taking a calcium-channel blocker. What adverse effects would the nurse caution this patient about?

Hypertension and tachycardia

Headache and dizziness

Itching and rash

Nausea and diarrhea

Ans:

B Feedback: The adverse effects associated with these drugs are related to their effects on cardiac output and on smooth muscle. Central nervous system (CNS) effects include dizziness, light-headedness, headache, and fatigue. Gastrointestinal (GI) effects can include nausea and hepatic injury related to direct toxic effects on hepatic cells. Cardiovascular effects include hypotension, bradycardia, peripheral edema, and heart block. Skin effects include flushing and rash. The adverse effects do not, however, include diarrhea, hypertension, tachycardia, or itching.

18.

The nurse assesses patients receiving nifedipine (Adalat) for what adverse effects?

Ascites

Asthma

Peripheral edema

Tetany

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

758

Feedback: Peripheral edema, heart block, bradycardia, and hypotension can occur with calcium-channel blockers. Asthma, ascites, and tetany are not associated with these drugs. 19.

What adverse reaction does the nurse anticipate if the 56-year-old patient takes his beta-blocker with clonidine?

Hypertension

Bradycardia

Angina

Syncope

Ans:

A Feedback: A paradoxical hypertension occurs when clonidine is given with beta-blockers, and an increased rebound hypertension with clonidine withdrawal may also occur. It is best to avoid this combination. Bradycardia, angina, and syncope are not associated with this drug combination.

20.

An asthmatic patient taking beta-blockers should be assessed by the nurse for what potential adverse reaction?

Bronchospasm

Hypoglycemia

Pleural effusion

Pneumonia

Ans:

A Feedback: Bronchospasm can occur with beta blockade. The patient would not have to be observed for hypoglycemia, pleural effusion, or pneumonia.

21.

The nurse should instruct the patient to take what action if three nitroglycerin tablets taken sublingually are not effective in eliminating chest pain?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

To call 911

To call her health care provider

To lie down after taking an aspirin

To take more tablets until pain subsides

Ans:

759

Feedback: Instruct patient that a sublingual dose may be repeated in 5 minutes if relief is not felt, for a total of three doses, if pain persists, the patient or a family member should call 911 to ensure proper medical support if a myocardial infarction should occur. She should not waste time by calling the health care provider; she can lie down while waiting for the ambulance to arrive, she should not take more tablets. 22.

The nurse is caring for a patient who takes metoprolol for angina. The patient asks how long it takes for the medicine to work. What is the nurse’s best response?

15 minutes

30 minutes

1 hour

90 minutes

Ans:

A Feedback: Oral metoprolol has an onset of action of 15 minutes. Other options are incorrect.

23.

The nurse teaches the patient wearing a nitroglycerin patch to avoid what?

Exercise

Alcoholic beverages

Milk products

Synthetic fabrics

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

760

B Feedback: Patients should be taught to avoid or at least decrease use of coffee, cigarettes, and alcoholic beverages. There is no need to avoid exercise, milk, or synthetic fabrics.

24.

The nurse is caring for a patient who is taking a sustained-release (SR) oral nitrate. How should the nurse instruct this patient to take the medication?

With water

Sublingually until absorbed

With milk or milk products

1 hour after eating

Ans:

A Feedback: Give SR forms with water, and caution the patient not to chew or crush them, because these preparations need to reach the gastrointestinal (GI) tract intact to avoid overdosage. They are not dissolved sublingually but swallowed whole. They are best taken on an empty stomach 1 hour before meals.

25.

An adult patient who experiences angina pectoris with exertion is informed by the nurse that the leading cause of angina is what?

Smoking

Inadequate cardiac output

Infarction of the myocardium

Coronary atherosclerosis

Ans:

D Feedback: The person with atherosclerosis has a classic supply-and-demand problem. The heart may function without a problem until increases in activity or other stresses place a demand on it to beat faster or

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

761

harder. Normally, the heart would stimulate the vessels to deliver more blood when this occurs, but the narrowed vessels are not able to respond and cannot supply the blood needed by the working heart. The heart muscle then becomes hypoxic. This imbalance between oxygen supply and demand is manifested as pain, or angina pectoris, which literally means suffocation of the chest. Atherosclerosis of the coronary artery can block the coronary artery completely leading to infarction. Smoking causes further vasoconstriction, increasing risk of myocardial infarction or angina. Damage to the heart muscle causes a decrease in cardiac output. 26.

The nurse is caring for a patient prescribed ranolazine. The patient asks why this drug is different from the beta-blocker that he was previously taking. What is the nurse’s best response?

This drug does not slow your heart rate.

This drug increases myocardial oxygen demand.

This drug slows the QT intervals.

This maintains blood pressure with no hypotensive effects.

Ans:

A Feedback: The newest drug approved for the treatment of angina is a piperazine acetamide agent called ranolazine. The mechanism of action of this drug is not understood. It prolongs QT intervals, does not slow heart rate or blood pressure, but decreases myocardial oxygen demand.

27.

After the patient’s anginal pain is relieved he says to the nurse, That nitroglycerin works great. How does it do that? What is the nurse’s best response?

Nitroglycerin decreases the amount of oxygen needed by the heart to function.

Nitroglycerin makes the coronary arteries open much wider.

Nitroglycerin promotes growth of new, smaller arteries to supply oxygen to the heart.

Nitroglycerin decreases preload and afterload.

Ans:

A Feedback: The main effect of nitrates seems to be related to the drop in blood pressure that occurs. The vasodilation causes blood to pool in veins and capillaries, decreasing preload, while the relaxation of the vessels decreases afterload. The combination of these effects greatly reduces the cardiac workload and the demand for oxygen, thus bringing the supply-and-demand ratio back into balance. Because coronary artery disease causes a stiffening and lack of responsiveness in the coronary arteries, the

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

762

nitrates probably have very little effect on increasing blood flow through the coronary arteries, so it would be incorrect to say that the coronary arteries become much wider. Although both preload and afterload are reduced, this is an explanation that the patient would not understand, so it is inappropriate. Nitroglycerin does not promote growth of compensatory circulation. 28.

An adult patient has had symptoms of unstable angina during admission to the hospital. What is the most appropriate nursing diagnosis?

Deficient knowledge about underlying disease and methods for avoiding complications

Anxiety related to fear of death

Ineffective tissue perfusion (total body) related to reduced oxygen supply to the heart

Noncompliance related to failure to accept necessary lifestyle changes

Ans:

C Feedback: The most appropriate nursing diagnosis is ineffective tissue perfusion related to reduced oxygen supply to the heart because this is the cause of the patient’s pain. Further assessment would be needed to determine whether the patient lacks knowledge, fears death, or has made the necessary lifestyle changes.

29.

The nurse is preparing to administer sublingual nitroglycerin to a patient for the first time and warns that the patient may experience what right after administration?

Nervousness or paresthesia

Throbbing headache or dizziness

Drowsiness or blurred vision

Tinnitus or diplopia

Ans:

B Feedback: Headache and dizziness commonly occur at the start of nitroglycerin therapy. When administering nitroglycerin, the nurse must use caution to avoid self-contamination, especially with the topical paste formulation because the nurse can experience the same symptoms. However, the patient usually develops a tolerance. Nervousness, paresthesia, drowsiness, blurred vision, tinnitus, and diplopia do not occur as a result of nitroglycerin therapy.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

30.

763

A patient is diagnosed with Prinzmetal’s angina. What drug would the nurse expect to administer to this patient?

Nadolol

Diltiazem

Propranolol

Metoprolol

Ans:

B Feedback: Calcium channel blockers are indicated for the treatment of Prinzmetal’s angina because these drugs relieve coronary artery vasospasm, increasing blood flow to the muscle cells. Diltiazem is a calcium channel blocker. Beta-blockers are not indicated for the treatment of Prinzmetal’s angina because they could cause vasospasm due to blocking of beta-receptor sites. Propranolol, nadolol, and metoprolol are beta-blockers.

31.

The nurse is caring for a patient diagnosed with human immunodeficiency virus (HIV) and newly diagnosed angina. What drug would the nurse question if ordered?

Ranolazine (Ranexa)

Nitroglycerin (generic)

Propranolol

Diltiazem

Ans:

A Feedback: Drugdrug interactions can occur with ketoconazole, diltiazem, verapamil, macrolide antibiotics, and HIV protease inhibitors; these combinations should be avoided because ranolazine levels may become extremely high. The nurse should get a complete list of current medications and consult with the health care provider regarding drug interactions before administering the medication as ordered. Nitroglycerin, propranolol, and diltiazem have no contraindication with medications used to treat HIV.

32. A)

Other than angina, what other medical condition might the nurse treat by administering nitroglycerin? Muscular dystrophy

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Pulmonary embolisms

Polycythemia

Anal fissures

Ans:

764

Feedback: In 2011, a nitroglycerin in ointment form, Rectiv 0.4%, was approved for the treatment of moderate to severe anal fissures. There is no documented benefit to the use of nitroglycerin to treat muscular dystrophy, pulmonary embolisms, or polycythemia. 33.

What would the nurse teach the patient about potency of nitroglycerin? (Select all that apply.)

The tablet should fizzle or burn when placed under the tongue.

Protect the drug from heat and light.

Always replace when past the expiration date.

Older tablets may require you to use two tablets at one time.

Nitroglycerin does not lose its potency easily.

Ans:

A, B, C Feedback: Ask the patient if the tablet fizzles or burns, which indicates potency. Always check the expiration date on the bottle and protect the medication from heat and light because these drugs are volatile and lose potency easily.

34.

The nurse teaches the patient how to use topical nitroglycerin and includes what teaching points in the teaching plan? (Select all that apply.)

Rotate application sites.

Assess the skin for signs of breakdown.

Make sure no one touches the side with the medication.

Do not shower with the patch in place.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Increase fluid intake to avoid hypotension.

Ans:

A, B, C

765

Feedback: Rotate the sites of topical forms of nitroglycerin to lower the risk of skin abrasion and breakdown; monitor for signs of skin breakdown to arrange for appropriate skin care as needed. Care should be taken not to touch the side of the patch with the medication by the patient or anyone assisting in applying the patch. The patient may shower with the patch in place. There is no need to increase fluid intake but patients should be encouraged to maintain adequate intake. 35.

The provider orders isosorbide dinitrate as oral maintenance drug to prevent angina. What dosage would the nurse administer without need to question the dose?

2.5 mg

80 mg

40 mg

5 mg

Ans:

B Feedback: A maintenance oral dose of isosorbide dinitrate is 10 to 40 mg every 6 hours. Sublingual dose is 2.5 to 5 mg, sustained release is 40 to 80 mg, and the chewable tablet is 5 mg.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

766

Chapter 47 - Lipid-Lowering Agents

When planning patient care the nurse recognizes what patient is at greatest risk of developing coronary artery disease?

A 32-year-old Asian American with total cholesterol of 120 mg/dL

A 62-year-old white American with total cholesterol of 260 mg/dL

A 48-year-old African American with total cholesterol of 198 mg/dL

A 26-year-old Native American with total cholesterol of 150 mg/dL

Ans:

B Feedback: White Americans have the highest incidence of coronary artery disease (CAD). This patient has total cholesterol of 260 mg/dL, which is considered high according to the Third Report of the National Cholesterol Education Program Expert Panel. The other three patients could be at risk due to cultural risk factors such as hypertension, diabetes, high (HDL) and low density lipoprotein (LDL) levels, and HDL level to cholesterol ratio. However, their total cholesterol levels fall within normal or desirable range.

The nurse is assessing a patient who reports taking cholestyramine (Questran) mixed with diet cola twice per day. What is an appropriate nursing diagnosis for this patient?

Acute pain related to central nervous system and GI effects

Constipation related to GI effects

Noncompliance related to how the drug is taken

Deficient knowledge regarding drug therapy

Ans:

D Feedback: Cholestyramine should be mixed with water or other noncarbonated fluids so the nurse now recognizes the need for medication teaching and chooses the nursing diagnosis related to deficient knowledge. Nothing in this question indicates that the patient is experiencing any adverse effects from the drug so that pain and constipation would not be optimal nursing diagnoses. Until the nurse assesses the patient’s understanding of how to take the drug, it would be incorrect to assume noncompliance when it

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

767

may actually be lack of understanding. 3.

A patient tells the nurse he has had an exacerbation of hemorrhoidal irritation. What drug would the nurse suspect is most likely to contribute to this adverse effect?

Bile acid sequestrants

Beta-hydroxy-beta-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors

Cholesterol absorption inhibitor

Fibrates

Ans:

A Feedback: Direct gastrointestinal (GI) irritation, including nausea, constipation that may progress to fecal impaction, and aggravation of hemorrhoids, may occur with use of bile acid sequestrants. GI irritation, and specifically irritation of hemorrhoids is not associated with use of HMG-CoA reductase inhibitors, cholesterol absorption inhibitors, or fibrates.

The nurse is engaged in patient teaching about a newly prescribed bile acid sequestrant that may be mixed with a carbonated beverage. What bile acid sequestrant is the nurse describing?

Cholestyramine (Questran)

Colesevelam (Welchol)

Colestipol (Colestid)

Ezetimibe (Zetia)

Ans:

C Feedback: Colestipol can be mixed with a carbonated beverage. The mixture should be stirred and all of the liquid should be swallowed. Ezetimibe is a cholesterol absorption inhibitor and comes in tablet form. The other two options are bile acid sequestrants, but should not be taken with carbonated beverages. The carbonation interferes with the absorption of the drug.

The patient asks the nurse what atorvastatin (Lipitor), newly prescribed, will do. What expected outcome will the nurse describe?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Decrease in serum cholesterol only

Decrease in serum cholesterol and low density lipoprotein (LDL) levels

Decrease in sitosterol and serum cholesterol

Decrease in campesterol and LDL levels

Ans:

768

Feedback: Atorvastatin is a beta-hydroxy-beta-methylglutaryl coenzyme A reductase inhibitor and should lower serum cholesterol and LDL levels as well as prevention of a first myocardial infarction and slow the progression of coronary artery disease. A decrease in serum cholesterol alone would result from the use of a bile acid sequestrant. A cholesterol absorption inhibitor would also decrease sitosterol and campesterol levels as well as decrease levels of serum cholesterol and LDL. 6.

The nurse is taking a health history on a 38-year-old man who is taking atorvastatin (Lipitor) for high cholesterol. What will the nurse question specifically related to the safe use of this drug?

Alcohol

Nicotine

Caffeine

Herbal therapy

Ans:

A Feedback: Beta-hydroxy-beta-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors are contraindicated with active liver disease or a history of alcohol-related liver disease so it is important for the nurse to ask about the patient’s use of alcohol. Nicotine, caffeine, and herbal therapies are usually not identified as producing any drugdrug interactions with atorvastatin.

A 9-year-old child has received an order for oral pravastatin (Pravachol) 40 mg/d for genetically linked hyperlipidemia. In preparation for patient teaching concerning this drug, what initial action will the nurse take?

Ask the parents to be present for the teaching session.

Determine the appropriate time to discuss the drug with the patient.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Question the doctor concerning the ordered dosage.

Review the child’s normal daily dietary intake of fatty foods.

Ans:

769

Feedback: The nurse should question the order initially. The dosage is twice the dose for a 9-year-old is expected to receive. The other options are appropriate and would be done. However, out of safety concerns, the nurse would clarify the dosage first. 8.

The nurse is caring for a patient taking ezetimibe (Zetia) and monitors the patient for what common adverse effects?

Bloating and flank pain

Neuropathy and flatulence

Mild abdominal pain and diarrhea

Constipation and flank pain

Ans:

C Feedback: The most common adverse effects of ezetimibe are mild abdominal pain and diarrhea. Bloating and flatulence are associated with bile acid sequestrants and the fibrates. Constipation is usually associated with bile acid sequestrants. Neuropathy and flank pain are usually not associated with lipid-lowering agents.

The nurse is preparing a patient for discharge who will receive a prescription for an beta-hydroxy-betamethylglutaryl coenzyme A (HMG-CoA) inhibitor. What statement by the patient demonstrates that they have a clear understanding of the teaching provided by the nurse?

I will not need to follow that low-fat diet anymore because this drug will take care of my lipids.

I should plan to take this drug before bedtime, because my body makes lipids mostly at night.

After I start taking this drug, I will not have to worry about the exercise routine the doctor prescribed.

I should take this drug first thing in the morning and make sure I drink a full glass of water.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

770

B Feedback: HMG-CoA inhibitors should be taken at bedtime because the body produces lipids mostly at night. Diet and exercise are still important when taking these drugs because the drug is most effective in combination with other lipid-lowering actions.

10.

A patient taking atorvastatin (Lipitor) comes to the clinic with complaints of acute muscle pain not associated with exercise or injury. The nurse will ask questions to determine if this patient has been taking what contraindicated substance?

Over-the-counter (OTC) medications

Ginseng

Grapefruit juice

Saw palmetto

Ans:

C Feedback: Grapefruit juice can decrease the breakdown of atorvastatin, leading to increased serum levels and toxic adverse effects, including rhabdomyolysis. Patients on this drug should be cautioned to avoid drinking grapefruit juice. OTC drugs, ginseng, and saw palmetto are not associated with increased toxicity.

11.

What are the most common adverse effects of lovastatin (Mevacor)?

Nausea, flatulence, and constipation

Increased appetite and blood pressure

Confusion and mental disorientation

Hiccups, sinus congestion, and dizziness

Ans:

A Feedback: GI problems such as nausea, vomiting, flatulence, constipation, or diarrhea can occur with lovastatin. Increased appetite is not associated with lovastatin but patients may think that taking this drug means they can now eat anything they want and this would indicate the need for further teaching. Confusion

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

771

and mental disorientation are not associated with this drug. Hiccups, sinus congestion, and dizziness would require exploration for cause because they are not normally associated with lovastatin therapy. 12.

The patient receives a prescription for niacin and the nurse is teaching his or her about the medication. The nurse instructs the patient to call the provider if what common adverse effect of niacin occurs?

Hypotension

Abdominal pain

Vomiting

Diarrhea

Ans:

B Feedback: Niacin is associated with intense cutaneous flushing, nausea, and abdominal pain, making its use somewhat limited. It also increases serum levels of uric acid and may predispose patients to the development of gout. Hypotension, vomiting, and diarrhea are not normally associated with the drug.

13.

The nurse is providing medication teaching to a patient who will begin taking niacin with a bile acid sequestrant. How does the nurse instruct the patient to take these two medications?

Both medications should be taken 4 to 6 hours apart.

Both medications should be taken in the morning.

One medication should be taken in the morning but the other is taken at bedtime.

Both medications can be taken at once just before going to bed.

Ans:

A Feedback: When niacin is prescribed with a bile acid sequestrant, the patient should be told to take the two medications 4 to 6 hours apart in the evening, with the niacin normally taken first.

14.

The nurse is teaching a patient about a peroxisome proliferator receptor alpha activator named Trilipix (fenofibric acid). The patient asks what this drug does. What is the nurse’s best response?

Micelles are absorbed into the intestinal wall and combined with proteins to become chylomicrons.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The drug makes the liver use cholesterol to produce more bile acids.

The drug works in the brush border of the small intestine to prevent the absorption of dietary cholesterol.

The drug activates a specific hepatic receptor, resulting in increased breakdown of lipids and reduction in triglyceride levels.

Ans:

772

Feedback: Fenofibric acid is the first drug in this class. It activates a specific hepatic receptor that results in increased breakdown of lipids, elimination of triglyceride-rich particles from the plasma and reduction in the production to an enzyme that naturally inhibits lipid breakdown. The result is seen as a decrease in triglyceride levels, changes in low density lipoprotein production, which makes them more easily broken down in the body, and an increase in high density lipoprotein levels. 15.

The nurse conducts a review of research related to Beta-hydroxy-beta-methylglutaryl coenzyme A inhibitors and finds the only one associated with data to show a reduction in coronary artery disease and incidence of myocardial infarction is what drug?

Pravastatin (Pravachol)

Lovastatin (Mevacor)

Atorvastatin (Lipitor)

Fluvastatin (Lescol)

Ans:

A Feedback: Pravastatin is the only statin with outcome data to show effectiveness in decreasing coronary artery disease and incidence of myocardial infarction (MI); it prevents a first MI even in patients who do not have a documented elevated cholesterol level. The other medications do not have any evidence of effectiveness for this patient.

16.

Which drug is most effective in reducing serum triglyceride levels?

Beta-hydroxy-beta-methylglutaryl coenzyme A reductase inhibitors

Bile acid sequestrants

Fibrates

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Niacin

Ans:

773

Feedback: Fibrates decrease hepatic production of triglycerides. They are the most effective drugs for reducing serum triglycerides. The other options are incorrect. 17.

The nurse is caring for a patient who takes fluvastatin (Lescol). Which laboratory value should be assessed regularly on this patient?

Blood urea nitrogen (BUN)

Complete blood count (CBC)

Activated partial thromboplastin time

Liver function studies

Ans:

D Feedback: Increased concentrations of liver enzymes commonly occur, and acute liver failure has been reported with the use of atorvastatin and fluvastatin. Liver function studies should be monitored at the onset of therapy, at 6 and 12 weeks, and intermittently during course of therapy. The other tests would not be pertinent to this specific drug.

18.

The nurse explains the action of a beta-hydroxy-beta-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitor as inhibiting what?

An enzyme that controls the final step in production of cellular cholesterol

An enzyme used immediately for energy

An enzyme that combines with proteins to become chylomicrons

An enzyme used to make bile acids

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

774

HMG-CoA reductase is an enzyme that controls the final step in production of cellular cholesterol. Some fats are used immediately for energy. Bile acids act like detergents to break down or metabolize fats into small molecules called micelles, which are absorbed into the intestinal wall and combined with proteins to become chylomicrons, to allow transport throughout the circulatory system. Cholesterol is a fat that is used make bile acids. 19.

A 54-year-old patient has a cholesterol level of 240 mg/dL. How would the nurse categorize this serum concentration of cholesterol?

Optimal

Desirable

High

Very high

Ans:

C Feedback: High is rated at or exceeding 240 mg/dL. Levels below 200 mg/dL are considered desirable, although lower levels may be preferred if the patient has a history of coronary artery disease. Low density lipoprotein (LDL) cholesterol below 100 mg/dL is considered optimal, whereas LDL levels above 190 or triglycerides above 500 mg/dL is considered very high.

20.

The pharmacology instructor asks what drug inhibits peripheral breakdown of lipids, reduces low density lipoproteins (LDLs), and increases high density lipoprotein (HDL) concentrations. What is the correct answer?

Fenofibrate (Tricor)

Niacin (Niaspan)

Atorvastatin (Lipitor)

Gemfibrozil (Lopid)

Ans:

D Feedback: Gemfibrozil inhibits peripheral breakdown of lipids, reduces production of triglycerides and LDLs, and increases HDL concentrations. It is associated with gastrointestinal (GI) and muscle discomfort. Fenofibrate, niacin, and atorvastatin do not increase HDL concentrations.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

21.

775

A patient is being discharged on cholestyramine (Questran). Patient teaching should include what about this medication?

Should be administered with other medications

Should be administered 1 hour before or 4 to 6 hours after other medications

Should be administered 1 hour after other medications

Should be administered on an empty stomach

Ans:

B Feedback: Cholestyramine should be administered 1 hour before or 4 to 6 hours after other medications, because it may prevent the absorption of other drugs. Therefore, the other options are incorrect.

22.

The patient is admitted to the acute care facility with a diagnosis of acute renal failure. While collecting the nursing history the patient reveals he was taking Pravastatin to reduce lipid levels and enjoyed a glass of grapefruit juice every morning. The patient complains of muscle pain. What does the nurse suspect caused this patient’s renal failure?

Gastric ulceration

Rhabdomyolysis

Congestive heart failure

Drug Toxicity

Ans:

D Feedback: Grapefruit juice increases the risks of toxicity and rhabdomyolysis. However, toxicity would cause liver damage, whereas the breakdown of muscle that occurs with rhabdomyolysis results in kidney damage and acute renal failure. The patient identified no symptoms related to gastric ulceration or congestive heart failure.

23.

The patient receives a prescription for a lipid lowering medication from the health care provider and, before discharge, asks the nurse what else he or she can do to improve his or her lipid levels besides just taking medication. What recommendation will the nurse make? (Select all that apply.) Quitting smoking

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Exercising

Following a low sodium diet

Reducing stress

Avoiding alcohol

Ans:

A, B, D

776

Feedback: Lifestyle changes including low-fat diet, exercise, smoking cessation, and stress reduction should be tried before any antihyperlipidemic drug is used. Avoiding alcohol is not indicated as a means to lower serum lipid levels. Although a low sodium diet is a healthy choice, it is not associated with elevating lipid levels. 24.

A patient is diagnosed as having an elevated cholesterol level. The nurse is aware that plaque on the inner lumen of arteries begins as what?

Fatty streaks

White blood cells (WBCs)

Foam cells

Platelets and fibrin

Ans:

A Feedback: Coronary artery disease is characterized by the progressive growth of atheromatous plaques, or atheromas, in the coronary arteries. These plaques, which begin as fatty streaks in the endothelium, eventually injure the endothelial lining of the artery, causing an inflammatory reaction. This inflammatory process triggers the development of characteristic foam cells, containing fats and WBCs that further injure the endothelial lining. Over time, platelets, fibrin, other fats, and remnants collect on the injured vessel lining and cause the atheroma to grow, further narrowing the interior of the blood vessel and limiting blood flow.

25.

The nurse is teaching a 45-year-old patient about ways to lower cholesterol levels and explains that exercise has what effect?

Increases high density lipoproteins (HDLs) and decreases low density lipoproteins (LDL)

Increases LDL and decreases triglycerides

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Decreases HDL and increases LDL

Decreases both HDL and LDL

Ans:

777

Feedback: Moderate exercise increases HDL levels, which assist in lowering LDL levels. Exercise also decreases triglyceride levels. 26.

The nurse teaches the patient at risk for coronary artery disease (CAD) that some risk factors can be controlled or modified. What modifiable factors would the nurse include?

Gender, obesity, family history, and smoking

Inactivity, stress, gender, and smoking

Obesity, inactivity, diet, and smoking

Stress, family history, and obesity

Ans:

C Feedback: The risk factors for CAD that can be controlled or modified include obesity, inactivity, diet, stress, and smoking. Gender and family history are risk factors that cannot be controlled.

27.

The nurse is caring for a patient with high serum cholesterol and triglyceride levels. In teaching the patient about therapeutic lifestyle changes such as diet and exercise, the nurse explains that the desired goal for cholesterol levels is what?

High high density lipoprotein (HDL) values and high triglyceride values

Low soluble fiber

Elevated blood lipids, fasting glucose less than 100

Low low density lipoprotein (LDL) values and high HDL values

Ans:

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778

Feedback: The desired goal for cholesterol readings is for a patient to have low LDL and high HDL values. HDL serves as a protective mechanism to reduce cholesterol so higher levels are desirable. High LDL levels increase plaque formation. Fiber does not contribute to risk for coronary artery disease (CAD) although a diet high in fiber is preferable. Elevated blood lipids are never desirable but control of blood sugar levels reduces CAD risk. 28.

The nurse cares for a patient who is in her second trimester of pregnancy with extremely high serum cholesterol levels. What lipid lowering medication would be appropriate for the nurse to administer to this patient?

Colesevelam (Welchol)

Pravastatin (Pravachol)

Simvastatin (Zocor)

Atorvastatin (Lipitor)

Ans:

A Feedback: Bile acid sequestrants are the drug of choice for pregnant women if a lipid-lowering agent is needed. Women of child-bearing age should not take beta-hydroxy-beta-methylglutaryl coenzyme A (HMGCoA) reductase inhibitors because they are in Pregnancy Category X. Pravastatin, simvastatin, and atorvastatin are all HMG-CoA reductase inhibitors.

29.

The nurse is teaching the patient how to reduce risk for coronary artery disease (CAD). What condition does the nurse encourage the patient to control in order to reduce CAD risk? (Select all that apply.)

Obesity

Hypertension

Bradycardia

Depression

High stress levels

Ans:

A, B, E Feedback:

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779

Successful treatment in reducing risk for CAD involves reducing risk factors including decreasing dietary fats (decreasing total fat intake and limiting saturated fats seems to have the most impact on serum lipid levels); losing weight, which helps to decrease insulin resistance and the development of type 2 diabetes; eliminating smoking; increasing exercise levels; decreasing stress; and treating hypertension, diabetes, and gout. Depression and bradycardia have not been linked to CAD. 30.

The nurse cares for a 10-year-old child brought to the clinic for an annual checkup who is diagnosed with hypercholesterolemia. What is the most common cause of hypercholesterolemia in children?

Gender

Diet

Familial connection

Exercise

Ans:

C Feedback: Familial hypercholesterolemia may be seen in children. Because of the importance of lipids in the developing nervous system, treatment is usually restricted to tight dietary restrictions to limit fats and calories. Gender, diet, or exercise-resistant hypercholesterolemia is possible in children, but they are not the most common causes.

31.

The nurse is caring for an obese patient with hyperlipidemia who has tried to modify his diet to lose weight and control serum lipid levels without success. He is currently taking a combination of medications but his total cholesterol remains above 200. What future therapy might help this patient?

Endocannabinoid blocker

Bile acid sequestrant with niacin

Beta-hydroxy-beta-methylglutaryl coenzyme A (HMG-CoA) reductase and gemfibrozil

Peroxisome proliferator receptor alpha activator

Ans:

A Feedback: Blocking the endocannabinoid system results in feelings of satiety and decreased appetite, leading to weight loss; decreased release of growth hormone, increased oxygen and glucose use in the muscle, decreased fat synthesis in the liver, decreased levels of triglycerides and low density lipoproteins, and increased levels of high density lipoproteins, improving the lipid profile; increased sensitivity of insulin receptor sites, leading to decreased blood glucose levels; decreased fat production and storage;

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780

increased levels of adiponectin; and decreased activity of tumor necrosis factor, a proinflammatory agent, and decreased activity of C-reactive protein, which is associated with proinflammatory and prothrombotic states. Combining bile acid sequestrant with niacin or HMG-CoA with gemfibrozil is contraindicated. Peroxisome proliferator receptor alpha activators help to control lipid levels but do not contribute to dietary changes and appetite suppression. 32.

The nurse provides patient teaching related to medication and lifestyle changes the patient can make to reduce serum lipid levels. One month later, the nurse evaluates the patient teaching as having been effective based on what data? (Select all that apply.)

Total cholesterol 184

High density lipoprotein (HDL) cholesterol 84

Low density lipoprotein (LDL) cholesterol 164

Triglycerides 184

Weight loss of 8 pounds

Ans:

A, B, E Feedback: Serum lab levels within the desirable level would indicate the teaching was effective; they include a total cholesterol level of less than 200, an HDL cholesterol level of higher than 40, an LDL cholesterol level of less than 129, and a triglyceride level of less than 50. Weight loss is also a positive outcome.

33.

The nurse is caring for a 35-year-old woman taking a beta-hydroxy-beta-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitor to lower serum lipid levels. When teaching this patient about her medications what priority teaching point will the nurse include in the teaching plan?

Need for frequent ophthalmic examinations

Information about a cholesterol-lowering diet

Use of barrier contraceptives

Calling her doctor with any respiratory symptoms

Ans:

C Feedback: It is important to teach a woman of childbearing age taking HMG-CoA reductase inhibitors to use barrier contraceptives because there is a risk of severe fetal abnormalities associated with these drugs if

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

781

taken during pregnancy. She should have routine ophthalmic examinations but does not need more frequent examinations. Cholesterol lowering diet should have been initiated before beginning medications to lower lipid levels. There are no associated respiratory risks with these medications so she would call the doctor with respiratory symptoms as she normally would. 34.

When providing patient teaching to a patient beginning therapy with a beta-hydroxy-betamethylglutaryl coenzyme A (HMG-CoA) reductase inhibitor, the nurse will explain the need for regular monitoring of what laboratory studies? (Select all that apply.)

Renal function tests

Liver function tests

Lipid panel

Hemoccult of stool

Albumin level

Ans:

A, B, C Feedback: It is important to monitor renal and liver function to identify early signs of toxicity or rhabdomyolysis. Monitoring lipid levels contributes to evaluation of the effectiveness of drug therapy. Hemoccult of stool would be more important with bile acid sequestrants that are associated with GI irritation. Altered albumin levels are not associated with HMG-CoA reductase inhibitors.

35.

The nurse is preparing to teach the patient about diet therapy when beginning bile sequestrant medication to lower lipid levels. What important teaching point will the nurse include in the teaching plan?

Increasing carbohydrate intake

Reducing protein intake

Increasing fiber intake

Reducing fluid intake

Ans:

C Feedback: The nurse would want to teach this patient to increase fiber intake to avoid constipation that often occurs with this medication. Protein intake does not need to be reduced, but the patient should be taught

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782

to avoid fatty protein and instead meet protein needs with vegetable proteins, fish, and lean poultry. Carbohydrate intake should be reduced if weight loss is needed, otherwise no change is needed. Fluid intake should be maintained or increased if there are no diagnoses that would contraindicate fluid intake to help avoid constipation.

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783

Chapter 48 - Drugs Affecting Blood Coagulation

A patient is admitted to the hospital with deep vein thrombosis. A 10,000-unit dose of heparin is administered subcutaneously. What drug does the nurse keep on hand to reverse the effects of heparin if the patient begins to bleed?

Antithrombin (Thrombate III)

Desirudin (Iprivask)

Protamine sulfate

Vitamin K

Ans:

C Feedback: The antidote for heparin is protamine sulfate. This drug forms stable salts as soon as it comes in contact with heparin. The reaction immediately reverses heparin’s anticoagulation effects. Vitamin K reverses the effect of warfarin. Antithrombin and desirudin are anticoagulants that would not be administered with heparin.

Prior to beginning anticoagulant therapy, the nurse will question the female patient about what?

Last menstrual period

Peptic ulcers

Urinary tract infection

Weight

Ans:

B Feedback: The nurse should screen for conditions that could be exacerbated by increased bleeding tendencies, including hemorrhagic disorders, recent trauma, spinal puncture, gastrointestinal (GI) ulcers, recent surgery, intrauterine device placement, tuberculosis, presence of indwelling catheters, and threatened abortion. Beginning anticoagulant therapy with active peptic ulcers could result in severe bleeding. Last menstrual period, urinary tract infection, and weight should not impact anticoagulant therapy.

The nurse is caring for a female patient who is nursing her 3-month-old infant. What will the nurse

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784

instruct the patient to do prior to starting heparin to treat venous thrombosis? A)

Wait an hour after taking the anticoagulant before feeding the infant.

Push fluids to clear the drug from her system before feeding the infant.

Find another method of feeding the infant while taking this drug.

Continue breast-feeding because heparin does not enter breast milk.

Ans:

D Feedback: Although some adverse fetal effects have been reported with its use during pregnancy, heparin does not enter breast milk, and so it is the anticoagulant of choice if one is needed during lactation. As a result, there is no need to wait an hour, push fluids, or find another method of feeding the baby.

The nurse receives a patient having an acute myocardial infarction (MI) to the emergency department. What drug will the nurse administer before transferring the patient to a larger facility?

Anagrelide (Agrylin)

Clopidogrel (Plavix)

Ticlopidine (Ticlid)

Tenecteplase (TNKase)

Ans:

D Feedback: Arrange to administer tenecteplase to reduce mortality associated with acute MI as soon as possible after the onset of symptoms because the timing for the administration of tenecteplase is critical to resolve the clot before permanent damage occurs to the myocardial cells. Anagrelide is used to treat essential thrombocytopenia. Clopidogrel is used to treat patients who are at risk for ischemic events; ticlopidine is used to reduce the risk of thrombotic stroke.

A nurse is preparing to discharge a patient newly prescribed warfarin (Coumadin). While assessing the patient’s knowledge of the drug, what would indicate that the patient needs further instruction concerning drug therapy? I love to eat homegrown tomatoes in the summer.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

I take aspirin for my arthritis.

I walk 2 miles a day.

I drink a glass of wine about once a week.

Ans:

785

Feedback: Increased bleeding can occur if a salicylate is taken in combination with warfarin. The nurse will instruct the patient to stop taking aspirin. Walking, eating tomatoes, and drinking an occasional glass of wine should not interfere with the therapeutic effects of warfarin. 6.

The nurse is caring for a patient with a fever and severe diarrhea in addition to thrombophlebitis. How will this patient’s condition impact the clotting process?

Depleted production of Hageman factor

Increased production of thrombin

Activation of plasminogen

Reduced production of fibrinolysin

Ans:

C Feedback: Plasminogen is the basis for the clot-dissolving system. It is converted to plasmin (fibrinolysin) by several factors including Hageman’s factor, which is factor XII found in circulating blood. Activated thrombin breaks down fibrinogen to form fibrin threads, which form a clot inside the blood vessel. Patients with diarrhea or fever could alter the normal clotting process by, respectively, loss of vitamin K from the intestine or activation of plasminogen.

The nurse is caring for a patient who received protamine sulfate in error. The patient is not receiving, and has never received, heparin. What effect does the nurse assess for in this patient?

Coagulation effects

No effect

Anticoagulant effects

Antiplatelet effects

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

786

C Feedback: Paradoxically, if protamine is given to a patient who has not received heparin, it has anticoagulant effects. Protamine is normally used as an antidote to heparin overdose but if heparin was not administered, it does not have coagulation or antiplatelet effects. Since it has anticoagulant effects it cannot be said to have no effect.

A patient is being discharged home on warfarin. The discharge teaching by the nurse should include a warning to avoid what?

St. John’s wort

Tarragon

Ginkgo

Saw palmetto

Ans:

C Feedback: Many of the herbal remedies are known to alter blood coagulation and should be avoided when taking anticoagulants. Patients taking these drugs should be cautioned to avoid angelica, cat’s claw, chamomile, chondroitin, feverfew, garlic, Ginkgo, goldenseal, grape seed extract, green leaf tea, horse chestnut seed, psyllium, and turmeric. If a patient who is taking an anticoagulant presents with increased bleeding and no other interaction or cause is found, question the patient about the possibility of use of herbal therapies. St. John’s wort, tarragon, and saw palmetto are not implicated as having an interaction with anticoagulants.

The nurse administers clopidogrel (Plavix) appropriately to the patient with what condition?

Maintaining the patency of grafts

Treating peripheral artery disease

Preventing emboli from valve replacements

Dissolving a pulmonary embolus and improving oxygenation

Ans:

B Feedback:

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787

Clopidogrel is used to inhibit platelet aggregation, decreasing the formation of clots in narrowed or injured blood vessels like those found in peripheral artery disease. Maintaining the patency of grafts or preventing emboli from valve replacements would be accomplished using an anticoagulant. Dissolving emboli would be accomplished using streptokinase or a similar enzyme to stimulate the conversion of plasminogen to plasmin. 10.

The nurse is caring for a patient who is going home on warfarin (Coumadin). What lab test will the patient require to evaluate therapeutic effects of the drug?

Activated partial thromboplastin time (APTT) only

International normalized ratio (INR) only

Prothrombin time (PT) and INR

PT and APTT

Ans:

C Feedback: PT and INR are ordered to evaluate for therapeutic effects of warfarin. Normal values of PT is 1.3 to 1.5 times the control value and the ratio of PT to INR is 2 to 3.5.

11.

What drug would the nurse administer for its antiplatelet effects? (Select all that apply.)

Ticlid

Iprivask

Arixtra

ReoPro

Activase

Ans:

A, D Feedback: Antiplatelet agents available for use include abciximab (ReoPro), anagrelide (Agrylin), aspirin, cilostazol (Pletal), clopidogrel (Plavix), dipyridamole (Persantine), eptifibatide (Integrilin), ticlopidine (Ticlid), ticagrelor (Brilinta), and tirofiban (Aggrastat). Iprivask and Arixtra are anticoagulants, and Actuvase is a thrombolytic agent.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

12.

788

A 76-year-old patient is receiving IV heparin 5,000 units every 8 hours. An activated thromboplastin time (aPTT) is drawn 1 hour before the 8:00 AM dose; the aPTT is at 3.5 times the control value. What is the nurse’s priority action?

Give a larger dose to increase the aPTT.

Give the dose as ordered and chart the results.

Check the patient’s vital signs prior to administering the dose.

Hold the dose and call the result to the physician.

Ans:

D Feedback: The therapeutic level of heparin is demonstrated by an activated partial thromboplastin time (aPTT) that is 1.5 to 3 times the control value. The patient’s value is 3.5 times control, which indicates clotting time is a bit too delayed and the dosage will likely either be reduced or a dosage may be held according to the order received from the physician. It would be inappropriate to give two doses at once, give the dose and chart the results, or simply check the vital signs without holding the dose and calling the physician.

13.

The nurse evaluates the effects of warfarin (Coumadin) by monitoring what laboratory test?

Red blood cell count (RBC)

Activated thromboplastin time (APT)

Prothrombin time (PT) and international normalized ratio (INR)

Platelet count

Ans:

C Feedback: The warfarin dose is regulated according to the INR. INR is based upon the PT. The other options are incorrect.

14.

The nurse discovers a patient receiving warfarin is bleeding. What drug would the nurse prepare to counteract this drug? Vitamin E

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Vitamin K

Protamine sulfate

Calcium gluconate

Ans:

789

Feedback: Injectable vitamin K is used to reverse the effects of warfarin. Protamine sulfate is used to reverse the effects of heparin. Vitamin E reduces effects of warfarin but is not used for that purpose. Calcium gluconate would not be indicated for this patient. 15.

The nurse evaluates that additional patient teaching is needed regarding anticoagulants when the patient states that he will do what?

Carry a Medic Alert card with him.

Report to the lab once a month.

Use acetaminophen for arthritis pain.

Use a disposable safety razor to shave.

Ans:

D Feedback: The patient should use an electric razor to shave rather than a disposable razor that could nick his skin and increase risk of bleeding. Carrying a MedicAlert card, getting regular follow-up lab work, and use of acetaminophen would all be appropriate actions that would not indicate the need for further teaching.

16.

The nurse teaches the patient taking warfarin (Coumadin) to minimize foods high in vitamin K including what type of food?

Eggs

Dairy products

Citrus fruits

Green leafy vegetables

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

790

D Feedback: Injectable vitamin K is used to reverse the effects of warfarin. Vitamin K is responsible for promoting the liver synthesis of several clotting factors. When these pathways have been inhibited by warfarin, clotting time is increased. If an increased level of vitamin K is provided, more of these factors are produced, and the clotting time can be brought back within a normal range. Green leafy vegetables are high in vitamin K and should be avoided or minimized in the diet to prevent reversal of warfarin effects. The other food options are not high in vitamin K.

17.

The nurse evaluates teaching about warfarin (Coumadin) is successful when the patient makes what statement?

If I miss a dose, I will take two pills the next day.

I will check with the pharmacist before taking any herbal supplements.

I will increase the dark-green leafy vegetables in my diet.

I will take a multivitamin daily.

Ans:

B Feedback: Warfarin is involved in many drugdrug and drugherb interactions so the patients statement about checking with the doctor before starting any new drugs or supplements would be correct. The other statements made by the patient indicate the need for further teaching because he or she should not take two pills after missing a dose, there is no need to increase green leafy vegetables containing vitamin K, and multivitamin use is contraindicated.

18.

The nurse assesses blood in the urine of the 73-year-old patient receiving warfarin (Coumadin) this morning. What actions will the nurse take? (Select all that apply.)

Assess prothrombin time (PT).

Assess international normalized ratio (INR).

Expect to administer protamine sulfate.

Expect to administer vitamin K.

Assess partial thromboplastin time (PTT).

Ans:

A, B, D

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791

Feedback: Vitamin K is the antidote for warfarin. PT and INR are used to assess therapeutic levels of warfarin. PTT is used to assess therapeutic levels of heparin. Protamine sulfate is given as an antidote for heparin. 19.

The nurse is caring for a patient following repeat coronary artery bypass grafting who has excessive bleeding. What systemic hemostatic drug will the nurse expect to administer?

Thrombin recombinant

Microfibrillar collagen

Human fibrin sealant

Aminocaproic acid (Amicar)

Ans:

D Feedback: The hemostatic drug that is used systemically is aminocaproic acid (Amicar). Topical hemostatic agents include absorbable gelatin (Gelfoam), human fibrin sealant (Artiss, Evicel), microfibrillar collagen (Avitene), thrombin (Thrombinar, Thrombostat), and thrombin recombinant (Recothrom).

20.

The 86-year-old patient, admitted with thrombophlebitis, is being sent home on enoxaparin (Lovenox). The nurse evaluates that he understands why enoxaparin is being used if he states that it will do what?

Inhibit the formation of additional clots

Stimulate production of certain clotting factors

Prevent the blood from clotting

Dissolve the clot

Ans:

A Feedback: Low-molecular-weight heparins inhibit thrombus and clot formation by blocking factors Xa and IIa. Because of the size and nature of the molecules, these drugs do not greatly affect thrombin, clotting, or the PT; therefore, they cause fewer systemic adverse effects.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

21.

792

What intervention does the nurse include in the plan of care for a patient receiving a continuous intravenous infusion of heparin?

Avoiding intramuscular injections

Assessing for symptoms of respiratory depression

Measuring hourly urinary outputs

Monitoring BP hourly

Ans:

A Feedback: The most commonly encountered adverse effect of the anticoagulants is bleeding, ranging from bleeding gums during toothbrushing to severe internal hemorrhage. Avoid all invasive procedures, including giving IM injections, while the patient is on heparin therapy. It would not be necessary to assess for respiratory depression, measure hourly output, or monitor the BP hourly as related because of heparin administration.

22.

The nurse is sending a patient home who will remain on anticoagulant therapy. What teaching point does the nurse make when teaching the patient about the drug? (Select all that apply.)

Brush teeth gently with soft bristle brush.

Wear or carry a MedicAlert notification.

Warning signs of bleeding include fatigue, pallor, and increased heart rate.

Treat minor side effects with over-the-counter (OTC) medications.

Obtain follow-up lab work regularly as ordered.

Ans:

A, B, C, E Feedback: Patients should be taught to avoid bleeding risk by brushing teeth gently, using electric razors, and avoiding dangerous activities or falls that could cause bleeding. The patient should have a MedicAlert to notify other health care providers of anticoagulant therapy. Teach patients to recognize the signs of blood loss and stress the importance of follow-up lab work. Patients should be taught to avoid adding any new medication, prescription or OTC, without first talking to the health care provider or pharmacist to ensure safety.

23.

Indications for the nurse to administer heparin include what? (Select all that apply.)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Treatment of hemophilia

Prevention and treatment of pulmonary emboli

Treatment of atrial fibrillation with embolization

Prevention and treatment of venous thrombosis

Diagnosis and treatment of disseminated intravascular coagulation (DIC)

Ans:

B, C, D, E

793

Feedback: Indications include prevention and treatment of venous thrombosis and pulmonary emboli, treatment of atrial fibrillation with embolization, and diagnosis and treatment of DIC. Heparin is not given to patients with hemophilia because the drug would worsen bleeding. 24.

The nurse is caring for a child who needs anticoagulation therapy. What drug is approved for pediatric use?

Heparin

Dabigatran

Rivaroxaban

Low-molecular-weight heparins

Ans:

A Feedback: Heparin is approved for pediatric use. If heparin is used, the dosage should be carefully calculated based on weight and age. It should be verified by another person before the drug is administered. Dabigatran and rivaroxaban are not approved for use in children. The safety of low-molecular-weight heparins has not been established in children.

25.

When the nurse administers warfarin it is expected that the drug will have what effect on the body?

Decrease in production of vitamin Kdependentt clotting factors

Increase in prothrombin

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Increase in vitamin Kdependent factors in the liver

Increase in procoagulation factors

Ans:

794

Feedback: Warfarin, an oral anticoagulant drug, causes a decrease in the production ovitamin Kdependent clotting factors in the liver. The eventual effect is a depletion of these clotting factors and a prolongation of clotting times. It is used to maintain a state of anticoagulation in situations in which the patient is susceptible to potentially dangerous clot formation. It does not increase prothrombin, vitamin Kdependent factors in the liver, or procoagulation factors. 26.

When the nurse administers heparin it is anticipated the drug will have what action on the patient’s body?

Binds to factor X

Blocks the formation of thrombin

Binds to factor Xa

Promotes the inactivation of factor VIII

Ans:

B Feedback: Heparin blocks the formation of thrombin from prothrombin. Heparin does not bind to factors X and Xa. Heparin does not inactivate factor VIII.

27.

A young man has been diagnosed with hemophilia and the nurse is planning his discharge teaching and includes what teaching point?

Using nonsteroidal anti-inflammatory drugs (NSAIDs) for mild pain

Preventing trauma to the body

Receiving IV factor VIII therapy at home

Understanding the condition is an X-linked recessive disorder

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

795

Feedback: The nurse’s thorough patient teaching must include the name of the drug, dosage prescribed, measures to avoid adverse effects, warning signs of problems, and the need for periodic monitoring and evaluation. Hemophilia A is an X-linked recessive disorder that primarily affects males. Approximately 90% of persons with hemophilia produce insufficient quantities of the factor VIII. The prevention of trauma is important in people with hemophilia. The other options are incorrect. 28.

The nurse admits a 32-year-old woman who takes oral contraceptives; she is expected to need aminocaproic acid postoperatively. The nurse recognizes this patient is at risk for what?

Hypercoagulation

Bleeding

Pregnancy

Infertility

Ans:

A Feedback: Aminocaproic acid is associated with the development of hypercoagulation states if it is combined with oral contraceptives or estrogens. Oral contraceptives do not increase the risk of pregnancy, bleeding, or infertility.

29.

The nurse reviews the patient’s lab values and determines warfarin therapy is at therapeutic levels with what lab result?

Partial thromboplastin time (PTT) 1.5 to 2.5 times the control

Prothrombin time (PT) 1.3 to 1.5 times the control

International normalized ratio (INR) of 3 to 4

Activated partial thromboplastin time (aPTT) 3 to 4 times the control

Ans:

B Feedback: Warfarin is at therapeutic level when the INR is 2 to 3.5 and the PT is 1.3 to 1.5 times control. PTT and aPTT should be 1.5 to 2.5 to indicate heparin dosage is at therapeutic level.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

30.

796

The patient receives a new diagnosis of peripheral artery disease and the nurse anticipates an order for what drug?

Clopidogrel

Persantine

Aspirin

Warfarin

Ans:

A Feedback: Clopidogrel (Plavix) is indicated for the treatment of patients who are at risk for ischemic events; patients with a history of myocardial infarction, peripheral artery disease, or ischemic stroke; and patients with acute coronary syndrome. Persantine, aspirin, and warfarin would not be indicated for this patient.

31.

The nurse admits a patient in acute respiratory distress secondary to pulmonary emboli. What drug will the nurse administer to lyse the clots?

Urokinase

Tenecteplase

Rivaroxaban

Fondaparinux

Ans:

A Feedback: Urokinase is used for lysis of pulmonary emboli and treatment of coronary thrombosis. Reteplase is used to treat coronary artery thrombosis associated with an acute myocardial infarction. Rivaroxaban is used to prevent deep vein thromboses that may lead to pulmonary emboli. Fondaparinux is used to treat and prevent venous thromboembolic events.

32.

The nurse is caring for a postpartum patient admitted to the intensive care unit with a diagnosis of disseminated intravascular coagulation (DIC). What is the drug of choice to treat this problem? Heparin

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Urokinase

Aspirin

Warfarin

Ans:

797

Feedback: The treatment of choice for DIC is heparin, an anticoagulant. It prevents the clotting phase from being completed, thus inhibiting the breakdown of fibrinogen. It may also help avoid hemorrhage by preventing the body from depleting its entire store of coagulation factors. None of the other medications listed in this question are indicated for treatment of DIC and may, in fact, make the condition worse. 33.

By what route will the nurse administer the antihemophilic agent to the patient with hemophilia following a car accident?

Oral

Topical

Sublingual

Ans:

C Feedback: All antihemophilic agents are administered IV and are not available for administration by any other route.

34.

The nurse administers agents that control bleeding to patients with hemophilia and what other condition?

Liver disease

Lymes disease

Disseminated intravascular coagulation (DIC)

Pheochromocytoma

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

798

A Feedback: Drugs to control bleeding are also given to patients with liver disease because liver disease prohibits clotting factors and proteins needed for clotting from being produced in adequate quantities. Lymes disease, DIC, and pheochromocytoma are not indications for administration of agents to control bleeding.

35.

The nurse is caring for a pediatric patient with hemophilia who receives antihemophilic factor several times a year. What should this patient be regularly screened for? (Select all that apply.)

HIV

Hepatitis

Anemia

Infection

Cardiomyopathy

Ans:

A, B, C Feedback: The most common adverse effects associated with antihemophilic agents involve risks associated with the use of blood products (e.g., in a patient with hepatitis or AIDS). Patients with hemophilia should also be monitored for anemia secondary to blood loss. There is no associated risk for infection or cardiomyopathy.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

799

Chapter 49 - Drugs Used to Treat Anemias

The nurse is caring for a patient in end-stage renal failure and anemia. What is the cause of this patient’s anemia?

Low serum iron levels

Low erythropoietin levels

Inadequate oxygenation of tissue

Lack of B12 and folic acid intake

Ans:

B Feedback: Anemia can occur if erythropoietin levels are low. This is seen in association with renal failure, when the kidneys are no longer able to produce erythropoietin. Low iron levels, hypoxia, and vitamin deficiency are not likely to be the primary cause of anemia in a patient with kidney failure.

A 2-year-old child weighing 32 pounds is to take ferrous sulfate (Feosol) 6 mg/kg/d PO. How many milligram will the child receive per dose?

47 mg

67 mg

87 mg

107 mg

Ans:

C Feedback: The nurse will administer 87 mg per dose. The child’s weight is first converted to kilograms by dividing 32 by 2.2, or 32/2.2 = 14.5 kg. Next, calculate the dose by multiplying weight times mg/kg/d or 14.5 × 6 = 87 mg.

A nurse caring for a 28-year-old woman with renal failure is to start the patient on epoetin alfa therapy for iron replacement. What will the nurse assess before initiating therapy?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Weight

Last menstrual period

Intake and output (I & O) for a 24-hour period

Blood type

Ans:

800

Feedback: The use of epoetin alfa is not recommended during pregnancy or lactation because of potential adverse effects to the fetus or baby. It is important to determine that the patient is not pregnant before drug therapy has started so the nurse would assess when the patient last menstruated. The patient’s weight, I & O, and blood type are not important factors in determining whether the drug can be used. 4.

The nurse improves patient compliance with the drug regimen of epoetin alfa by providing what?

An appointment card for each drug administration day

A calendar to mark the days of the week the drug is to be administered

A referral for community transportation

The telephone number of the pharmacy where the medication can be purchased

Ans:

B Feedback: The nurse should provide the patient with a calendar with the days the drug is to be administered marked clearly to remind her when the dose is due. The patient can be taught to self-administer the drug so there is no need for an appointment or arranging transportation. The patient can use her choice of pharmacy and would not need the telephone number.

A patient who has anemia and a severe GI absorption disorder has been ordered iron dextran (INFeD). What is the most appropriate nursing diagnosis for the patient related to the administration of this drug?

Acute pain related to drug administration

Deficient knowledge regarding drug therapy

Risk for injury related to CNS effects

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Disturbed body image related to drug staining of teeth

Ans:

801

Feedback: Iron dextran is a parenteral form of iron. It is given intramuscularly and must be given by the Z-track method. It can be very painful. Certainly, deficient knowledge and risk for injury are appropriate diagnoses for this patient but would not be related to the administration of the drug. Because this medication is not given orally, tooth staining would not be a concern. 6.

A 22-year-old woman who has severe dysmenorrhea has been prescribed ferrous gluconate (Fergon) to treat iron deficiency anemia. What is it important for the nurse to instruct the patient to avoid when taking the drug?

Eggs

Chocolate

Pork

Whole wheat

Ans:

A Feedback: Iron is not absorbed if taken with antacids, eggs, milk, coffee, or tea. These substances should not be administered concurrently. Chocolate, pork, and whole wheat do not produce drugfood interactions when consumed with an iron supplement.

The nurse develops a care plan for a patient who has been prescribed a folic acid derivative that includes what priority nursing diagnosis?

Deficient knowledge regarding drug therapy

Monitor possibility of hypersensitivity reactions

Acute pain related to injection or nasal irritation

Risk for fluid volume imbalance related to cardiovascular effects

Ans:

D Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

802

Nursing diagnoses related to drug therapy might include: Risk for fluid volume imbalance related to cardiovascular effects. Deficient knowledge and acute pain might apply to this patient, but the priority nursing diagnosis this patient, but the priority nursing diagnosis for this patient is the risk for fluid imbalance related to cardiovascular effects. Monitoring for hypersensitivity is not a nursing diagnosis. 8.

Before administering an iron preparation, what should the nurse assess?

Red blood cell count (RBC)

Hematocrit and hemoglobin

Aspartate aminotransferase levels

Serum creatinine levels

Ans:

B Feedback: Hematocrit and hemoglobin levels should be assessed before administration because the drug will be evaluated for effectiveness by the response of these levels to drug treatment. These levels are also used to determine dosage. Counting RBCs would indicate the number of blood cells per cubic millimeter but not iron or oxygen content. Aspartate aminotransferase levels are associated with liver function and serum creatinine levels are associated with renal function.

What ordered dosage for epoetin alfa (Procrit) could the nurse administer without needing to question the order?

0.45 mcg/kg IV once per week

1 mg/d IM

100 mg/d PO

150 units/kg subcutaneously three times per week

Ans:

D Feedback: An appropriate dosage of epoetin alfa is 50 to 100 units/kg IV or subcutaneously, 3 days a week. Darbepoetin alfa can be administered by IV or subcutaneously once a week, and the usual dose is 0.45 mcg/kg. Folic acid (Folvite) is administered orally, IM, subcutaneously or IV; the usual dosage is 1 mg. The usual dose of ferrous sulfate is 100 to 200 mg/d PO.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

10.

803

After assessing the patient receiving erythropoietin drug therapy, the nurse suspects what finding is an adverse effect of erythropoietin drug therapy?

Constipation

Hypotension

Edema

Depression

Ans:

C Feedback: Potential adverse effects of an erythropoietin are edema, nausea, vomiting, chest pain, diarrhea, and hypertension. Options A, B, and D are not associated with these drugs.

11.

A 62-year-old female patient is started on vitamin B12 for pernicious anemia. When the nurse develops the plan of care, what expected outcome will the nurse include?

Decreased bleeding

Increased hemoglobin

Decreased joint pain

Less fatigue

Ans:

B Feedback: Vitamin B12 is essential for normal functioning of red blood cells (RBCs) so the drug would be evaluated as successful in treating the disorder if the patient’s hemoglobin and RBC count increased after administration. Expected outcomes do not include decreased bleeding, decreased joint pain, or less fatigue.

12.

A 50-year-old patient with pernicious anemia asks why she can’t just take a vitamin B12 pill instead of getting an injection. What is the nurse’s best response to her question?

“Pernicious anemia is caused by the body’s inability to absorb vitamin B12.

Oral ingestion of vitamin B12 irritates the GI tract and bleeding could occur.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Pernicious anemia alters mucous membrane lining of the bowel and impairs absorption.

With severe deficiencies like yours, oral vitamin B12 does not work fast enough.

Ans:

804

Feedback: Vitamin B12 cannot be taken orally, because one problem with pernicious anemia is an inability by the patient to absorb vitamin B12 due to low levels of intrinsic factor. Other options are incorrect. 13.

The nurse instructs a patient taking oral iron preparations about which potential adverse effect?

Clay-colored stools

Hypotension

Constipation

Frequent flatus

Ans:

C Feedback: The most common adverse effects associated with oral iron supplements are related to direct GI irritation (e.g., GI upset, anorexia, nausea, vomiting, diarrhea, dark stools, and constipation). Oral iron supplements do not cause hypotension, clay-colored stools, or frequent flatus.

14.

When providing patient teaching for a 30-year-old primigravida diagnosed with sickle cell anemia, but not currently in crisis, the priority teaching point is what?

Avoidance of infection

Constipation prevention

Control of pain

Iron-rich foods

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

805

Severe, acute episodes of sickling with blood vessel occlusion may be associated with acute infections and the body’s reactions to the immune and inflammatory responses. Avoidance of infection is, then, a priority teaching point. Pain would be a concern only if the patient is in crisis. Constipation prevention and iron-rich foods would not be the priority at this time. 15.

What drugs might the nurse administer that have been developed to stimulate erythropoiesis? (Select all that apply.)

Levoleucovorin

Hydroxocobalamin

Darbepoetin alfa

Methoxy polyethylene glycol-epoetin beta

Epoetin alfa

Ans:

C, D, E Feedback: Patients who are no longer able to produce enough erythropoietin in the kidneys may benefit from treatment with exogenous erythropoietin (EPO), which is available as the drugs epoetin alfa (Epogen, Procrit), darbepoetin alfa (Aranesp), and methoxy polyethylene glycol-epoetin beta (Mircera). Both darbepoetin alfa and methoxy polyethylene glycol-epoetin beta are approved to treat anemias associated with chronic renal failure, including patients receiving dialysis. Levoleucovorin and hydroxocobalamin are not erythropoiesis-stimulating agents.

16.

What anemia does the nurse classify as a type of hemolytic anemia?

Iron deficiency anemia

Megaloblastic anemia

Pernicious anemia

Sickle cell anemia

Ans:

D Feedback: Another type of anemia is hemolytic anemia, which involves a lysing of red blood cells because of genetic factors or from exposure to toxins. Sickle cell anemia is a type of hemolytic anemia. Iron

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

806

deficiency and megaloblastic anemias are different classifications of anemia. 17.

What medication does the nurse administer to treat anemia associated with chronic renal failure?

Methoxy polyethylene glycol-epoetin beta

Ferrous sulfate exsiccated

Levoleucovorin

Hydroxyurea

Ans:

A Feedback: Both darbepoetin alfa and methoxy polyethylene glycol-epoetin beta are approved to treat forms of anemia associated with chronic renal failure, including in patients receiving dialysis. Ferrous sulfate exsiccated is used to treat iron deficiency. Levoleucovorin is administered to diminish toxicity and counteract the effects of impaired methotrexate elimination and of inadvertent overdose of folic acid antagonists after high-dose methotrexate therapy for osteosarcoma. Hydroxyurea is used to reduce the frequency of painful sickle cell crises and to decrease the need for blood transfusions in adults with sickle cell anemia.

18.

The nurse is caring for a patient diagnosed with pernicious anemia and anticipates this patient will require supplemental what?

Iron

Vitamin B12

Erythropoietin

Oxygen

Ans:

B Feedback: Pernicious anemia occurs when the gastric mucosa cannot produce intrinsic factor and vitamin B12 cannot be absorbed. Other options are incorrect.

19.

When providing patient teaching the nurse warns the patient to avoid what triggers of an episode of sickling? (Select all that apply.)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Acute infections

Immune response

Exposure to heat

Inflammatory responses

Metabolic alkalosis

Ans:

A, B, D

807

Feedback: Severe, acute episodes of sickling with occluded blood vessels may be associated with acute infections and the body’s reactions to the immune and inflammatory responses. Exposure to heat and metabolic alkalosis are not considered triggers. 20.

The nurse teaches hemodialysis patients that anemia occurs because damaged kidneys fail to produce what?

Erythropoietin

Renin

Angiotensin

Urine

Ans:

A Feedback: People with chronic renal failure are often anemic because their kidneys are unable to produce erythropoietin. The production of renin and angiotensin impact the patient’s blood pressure. Anemia is not caused by lack of urine production.

21.

A patient has been prescribed epoetin alfa. The nurse determines the drug is contraindicated as a result of what finding in the patient history?

Asthma

Irritable bowel syndrome

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Hypertension

Shortness of breath

Ans:

808

Feedback: Erythropoiesis-stimulating agents are contraindicated in the presence of uncontrolled hypertension because of the risk of worsening hypertension when red blood cell counts increase and the pressure within the vascular system also increases. There is no contraindication to the use of erythropoiesisstimulating agents for patients with asthma, irritable bowel syndrome, or shortness of breath. 22.

An older adult patient, diagnosed with pernicious anemia, asks the nurse what causes this disorder. The nurse’s best response is that there is a lack of intrinsic factor secreted needed for absorption of vitamin B12 where?

Large bowel

Lower esophagus

Stomach

Small bowel

Ans:

D Feedback: Intrinsic factor, also secreted by the gastric mucosa, combines with dietary vitamin B12 so that the vitamin can be absorbed in the ileum, located in the small bowel. Other options are incorrect.

23.

What genetic carrier screening would be appropriate for an African American couple planning to begin a family?

Renal failure

Sickle cell anemia

Iron deficiency anemia

Vitamin B12 deficiency

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

809

Feedback: Sickle cell anemia is a chronic hemolytic anemia that occurs most commonly in people of African descent, so it would be appropriate to have genetic screening to determine the risk associated with having children. The other answers are incorrect because they are not associated with people of African descent. 24.

The nurse is caring for a child who is prescribed supplemental iron therapy in liquid form. What is the priority parent teaching to be provided by the nurse?

The iron should be taken through a straw.

Positive results from treatment will be seen in 1 to 2 weeks.

Results will be evaluated through the child’s appearance.

Dosages are determined by serum iron levels.

Ans:

A Feedback: Iron doses for replacement therapy are determined by age. If a liquid solution is being used, the child should drink it through a straw to avoid staining the teeth. Periodic blood counts should be performed; it may take 4 to 6 months of oral therapy to reverse an iron deficiency. Remember that iron can be toxic to children, so that iron supplements should be kept out of their reach and administration monitored.

25.

The nurse admits a 26-year-old patient with sickle cell anemia. What drug does the nurse anticipate administering?

Hydroxyurea

Methoxy polyethylene glycol-epoetin beta

Vitamin B12

Leucovorin

Ans:

A Feedback: Indications for use of hydroxyurea include reducing the frequency of painful crises and the need for blood transfusions in adult patients with sickle cell anemia. Other options would not be used to treat a patient with sickle cell anemia.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

26.

810

The nurse admits a child to the pediatric unit who has an abnormally high serum iron level. What chelating agent will be appropriate to treat this child?

Calcium disodium edetate

Deferoxamine

Dimercaprol

Succimer

Ans:

B Feedback: Deferoxamine is given IM, IV, or subcutaneously to treat elevated iron levels. Calcium disodium edetate and succimer are used to treat elevated lead levels. Dimercaprol treats arsenic, gold, and mercury poisoning.

27.

The nurse is caring for a patient who just received a cancer diagnosis. The patient tells the nurse, I saw the commercials on TV and I want to start taking Procrit immediately so I don’t get tired from chemotherapy. What is the nurse’s best response?

Procrit is only effective if you develop anemia from chemotherapy that is caused by low levels of erythropoietin.

Before the doctor will order this drug, you will need to be found to have anemia so we will draw some blood for lab work while you’re here.

Chemotherapy causes anemia and only when that happens will it be appropriate to prescribe Procrit for you.

The doctor may order Procrit for you when it is appropriate, but now is not the appropriate time for you to take this drug.

Ans:

A Feedback: There is a risk of decreasing normal levels of erythropoietin if epoetin alfa (Procrit), or any of this classification of drug (erythropoiesis-stimulating agents), is given to patients who have normal renal functioning and adequate levels of erythropoietin. The patient should be taught that the drug will only be prescribed if he develops anemia due to inadequate erythropoietin. Although it is true the doctor may prescribe the drug when it is appropriate, this answer does not explain why it is inappropriate to prescribe it now. Anemia alone is not sufficient cause for prescribing Procrit and not all chemotherapy results in anemia.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

28.

811

What drug used to treat anemia might the nurse administer as an antineoplastic drug because it is cytotoxic?

Epoetin alfa

Ferrous sulfate

Hydroxocobalamin

Hydroxyurea

Ans:

D Feedback: Hydroxyurea is a cytotoxic antineoplastic drug that is also used to treat leukemia, ovarian cancer, and melanoma. The other options would not serve this purpose.

29.

The nurse is caring for a patient diagnosed with a megaloblastic anemia and administers what drug?

Folic acid

Hydroxyurea

Ferrous sulfate

Epoetin alfa

Ans:

A Feedback: Folic acid and vitamin B12 are given as replacement therapy for dietary deficiencies, as replacement in high-demand conditions such as pregnancy and lactation, and to treat megaloblastic anemia. Hydroxyurea is used to treat sickle cell anemia. Ferrous sulfate is indicated for the treatment of iron deficiency anemia. Epoetin alfa is administered to treat anemias caused by inadequate erythropoietin production, such as in renal failure.

30.

The nurse is preparing the patient prescribed hydroxocobalamin for discharge and teaches the patient to be alert for what adverse effects? (Select all that apply.)

Itching

Peripheral edema

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Hypotension

Heart failure

Constipation

Ans:

A, B, D

812

Feedback: Hydroxocobalamin has been associated with itching, rash, and signs of excessive vitamin B12levels, which can also include peripheral edema and heart failure. Hypotension and constipation are not adverse effects of hydroxocobalamin therapy. 31.

The patient has taken epoetin alfa (Epogen) with good results for several months. On this visit, the nurse analyzes the patient’s lab results and finds indications of severe anemia and cytopenias. What order will the nurse anticipate receiving?

Increase the dosage of Epogen.

Change the patient to another erythropoiesis-stimulating agent.

Discontinue Epogen.

Begin administering Epogen IV instead of subcutaneously.

Ans:

C Feedback: In patients treated with Epogen or any drug in this class who develop severe anemia after improvement, the drug should be stopped and should not be changed to another drug in the class because it is likely due to patient’s development of neutralizing antibodies. Increasing the dosage will not help and changing the route of administration will not reverse the process after antibodies have formed.

32.

The patient receiving epoetin alfa (Procrit) asks the nurse why it has to be administered IV because he read that it could be self-administered subcutaneously. What is the nurse’s best response?

Giving the drug IV reduces risk of a potentially serious response to the drug.

Giving the drug by the IV route makes it begin working sooner.

Only patients with renal disease can receive the drug subcutaneously.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

It is all determined by physician preference and this doctor prefers the IV route.

Ans:

813

Feedback: It is now recommended that patients receive Procrit and other drugs in this classification intravenously rather than subcutaneously because this reduces the risk of antibody production that can result from severe anemia. This decision is not based on speed of onset, diagnosis, or physician preference. 33.

The nurse is administering an erythropoiesis-stimulating agent to a patient with renal failure and anemia. What is the maximum hemoglobin level the nurse would want to assess when reviewing this patient’s lab results?

8 g/dL

10 g/dL

12 g/dL

14 g/dL

Ans:

C Feedback: In recent years, the Food and Drug Administration alerted providers to the importance of a target hemoglobin of no more than 12 g/dL when using erythropoiesis-stimulating agents. As a result, other options are either too low or too high.

34.

For what purpose would the nurse administer postoperative epoetin alfa to the patient who is a Jehovah’s Witness?

Reduce the need for allogenic blood transfusion

Treatment of anemia associated with chronic renal failure

Treatment of HIV infection

To prevent the need for chemotherapy

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

814

Jehovah’s Witnesses often refuse allogenic blood transfusions because of their religious beliefs. Indications for the use of epoetin alfa include treatment of anemia associated with chronic renal failure, related to treatment of HIV infection or to chemotherapy in cancer patients, to reduce the need for allogenic blood transfusions in surgical patients. There is no indication in this question that the patient has chronic renal failure, HIV, or need for chemotherapy. 35.

For what purpose might the nurse administer folic acid to the patient? (Select all that apply.)

Nutritional deficiency

Megaloblastic anemia

Pregnancy or preparation for pregnancy

Sickle cell anemia

Renal failure

Ans:

A, B, C Feedback: Folic acid is indicated for the treatment of megaloblastic anemia caused by sprue and to replace a nutritional deficiency. It is also given to women who are, or plan to become, pregnant to reduce the risk of a neural tube disorder in the fetus. It is not indicated for the treatment of sickle cell anemia or renal failure.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

815

Chapter 50 - Introduction to the Renal System

The nursing instructor is talking with students about the renal system. What would the instructor tell the students about the renal system, especially how it helps maintain calcium levels in the body by regulating the activation of what?

Vitamin A

Vitamin B

Vitamin C

Vitamin D

Ans:

D Feedback: The renal system has four major functions in the body. One is regulating vitamin D activation, which helps maintain and regulate calcium levels. Vitamins A, B, and C are not associated with this function.

The patient has just been diagnosed with acute renal failure. The patient asks the nurse what part of his or her kidneys is involved. What would the nurse reply?

Glomerulus

Renal pelves

Nephron

Renal capsule

Ans:

C Feedback: The functional unit of the kidney is the nephron. There are about 2.4 million nephrons in an adult. These structures filter fluid and make urine. The glomerulus is a tuft of blood vessels with a capillarylike endothelium that allows easy passage of fluid and waste products. The renal pelves are in a region of the kidney that drains urine into the ureters. The renal capsule is a protective layer, which is made up of the fiber layer, a perirenal or brown fat layer, and the renal parietal layer.

A patient who has just been told that he or she needs to go on dialysis asks the nurse what the normal output of urine is per day. What would be the nurse’s best response?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

2,000 mL

3,000 mL

4,000 mL

5,000 mL

Ans:

816

Feedback: Approximately 125 mL of fluid is filtered out of the glomerulus each minute. About 99% is returned to the blood stream as the filtrate progresses through the renal tubule. Approximately 1% or 2,000 mL of fluid is excreted each day in the form of urine. The other options are not correct. 4.

The anatomy class is learning about the countercurrent mechanism in the medullary nephrons. What would the students learn about this mechanism and what it acts to do?

Promote sodium excretion

Concentrate or dilute the urine

Block the effects of aldosterone

Stimulate antidiuretic hormone (ADH) release

Ans:

B Feedback: The countercurrent mechanism in the medullary nephrons acts to concentrate or dilute urine. It does not promote sodium excretion nor does it block the effects of aldosterone. This mechanism does not stimulate ADH release.

The physiology instructor explains that the nephrons are fragile and require a constant supply of blood and oxygen. What compensatory mechanisms work to maintain this supply?

The reninangiotensin system, causing vasoconstriction

Baroreceptor monitoring of the renal artery

Increased sweating when total water volume becomes too great

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Antidiuretic hormone (ADH) release in response to increased blood volume or decreased osmolarity

Ans:

817

Feedback: The reninangiotensin system causes vasoconstriction to improve blood flow to the fragile nephrons. Baroreceptors are not found in the renal artery. Increased sweating is not a reflex reaction to increased total body water. ADH is released in response to decreased blood volume and increased osmolarity. 6.

The nursing instructor is discussing anemia. The instructor explains about when a person has chronic renal failure; how it leads to a decrease in the production of red blood cells and so the person becomes anemic. This anemia is usually caused by a loss of what?

Erythropoietin

Hydrogen ions

Renin

Urea

Ans:

A Feedback: When nephrons are lost, as in renal failure, the juxtaglomerular cells that produce erythropoietin are also lost leading to a decrease in red blood cell production and anemia. Urea, renin, and hydrogen do not affect red blood cell production and are not associated with anemia.

As the physiology instructor explains to the students, the kidneys regulate calcium levels within a very tight range by the activity of the parathyroid hormone (PTH) and calcitonin. Where does the fine-tuning of the calcium level occur?

Bowman’s capsule

The proximal convoluted tubule

The distal convoluted tubule

The loop of Henle

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

818

Feedback: PTH acts at the distal convoluted tubule to stimulate the reabsorption of calcium to increase serum calcium levels; if it is not present, the calcium is lost. Calcium is filtered at the glomerulus and mostly reabsorbed in the proximal convoluted tubule and the ascending loop of Henle. Bowman’s capsule is part of the renal corpuscle that acts as a sieve or a strainer to allow fluid to flow through, but also keeps large particles from entering. 8.

A student asks the physiology instructor how the kidneys control body fluid composition. The instructor explains that the kidneys, by actively removing solutes from the capillary system for excretion in the urine, perform a process called what?

Glomerular filtration

Tubular reabsorption

Tubular secretion

Tubular metabolism

Ans:

C Feedback: Tubular secretion is the movement of solutes from the capillary bed into the renal tubule. Glomerular filtration is the passing of fluid from the capillary system into the renal tubule in Bowman’s capsule. Tubular reabsorption is the movement of solutes from the tubule into the capillary system.

The students are discussing the electrolytes in the body. What should the students know has the greatest influence on potassium loss from the body?

Aldosterone

Antidiuretic hormone

Renin

Carbonic anhydrase

Ans:

A Feedback: Potassium concentration is regulated throughout the tubules with aldosterone being the strongest influence for loss. Renin activates angiotensinogen, which becomes angiotensin I. Antidiuretic hormone is produced by the hypothalamus and stored in the posterior pituitary gland and is important in

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

819

maintaining fluid balance. Carbonic anhydrase causes sodium ions to be reabsorbed and allows carbon dioxide and water to combine to form carbonic acid. This leads to the formation of sodium bicarbonate, which is stored in the renal tubules as the body’s reserve for use when the body needs a buffer against acid. 10.

The students are studying the male reproductive system. The instructor tells the students that in the male, the urethra leaves the urinary bladder and passes through what?

Vas deferens

Renal calyx

Prostate gland

Renal cortex

Ans:

C Feedback: In the male, the urethra leaves the urinary bladder and passes through the prostate gland. The renal calyx and cortex are located in the kidney and the urethra does not pass through the kidney. The vas deferens delivers the sperm from the testicles to the urethra.

11.

The nurse admits a patient with a high potassium level. The nurse recognizes this activates the body’s sodiumpotassium exchange leading to which physical symptom?

Dehydration

Water retention

Fatigue

Dizziness

Ans:

B Feedback: If potassium levels are very high, the retention of sodium in exchange for potassium also leads to retention of water and a dilution of blood volume, which decreases potassium concentration. Dehydration is a lack of volume in the blood vessels, which can lead to dizziness. Fatigue is a symptom of anemia, which is associated with renal failure.

12.

The nurse is caring for a patient suspected of having renal dysfunction. When reviewing laboratory results for this patient, the nurse recalls that several substances are filtered from the blood by the

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

820

glomerulus and these substances are then excreted in the urine. The nurse identifies the presence of which substances in the urine as abnormal findings? A)

Potassium and sodium

Bicarbonate and urea

Blood cells and protein

Creatinine and chloride

Ans:

C Feedback: The various substances normally filtered by the glomerulus, reabsorbed by the tubules, and excreted in the urine include sodium, chloride, bicarbonate, potassium, glucose, urea, creatinine, and uric acid. Within the tubule, some of these substances are selectively reabsorbed into the blood. Glucose scarring or swelling of or damage to the semipermeable membrane leads to the escape of larger plasma components such as blood cells or protein into the filtrate. A clinical sign of renal damage is the presence of blood cells or protein in the urine.

13.

The pathophysiology instructor is talking to the prenursing students about hypovolemia and the kidneys. The instructor points out that when the blood pressure is low due to dehydration, the body will compensate by secreting what?

Antidiuretic hormone

Aldosterone

Renin

Angiotensin

Ans:

C Feedback: Regulation of blood pressure is also a function of the kidney. Specialized vessels of the kidney called the vasa recta constantly monitor blood pressure as blood begins its passage into the kidney. When the vasa recta detect a decrease in blood pressure, specialized juxtaglomerular cells near the afferent arteriole, distal tubule, and efferent arteriole secrete the hormone renin. Renin converts angiotensinogen to angiotensin I, which is then converted to angiotensin II, the most powerful vasoconstrictor known. The vasoconstriction causes the blood pressure to increase. The cortex of the suprarenal gland secretes aldosterone in response to stimulation by the pituitary gland, which in turn is in response to poor perfusion or increasing serum osmolality. The result is an increase in blood pressure. When the vasa recta recognize the increase in blood pressure, renin secretion stops. Failure of this feedback

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

821

mechanism is one of the primary causes of hypertension. Therefore, options A, B, and D are incorrect. 14.

The nurse is aware that which area of the kidney provides quick response to any damage or injury to the kidney cells?

Juxtaglomerular apparatus

Reninangiotensinaldosterone system

Macula densa

Countercurrent mechanism

Ans:

C Feedback: The macula densa consists of immune system cells and chemicals that can respond quickly to any cellular damage or injury. The juxtaglomerular apparatus produce erythropoietin and renin. The Reninangiotensinaldosterone system works to maintain blood flow to the kidneys. The countercurrent mechanism works to concentrate and dilute the urine.

15.

A patient who has signs and symptoms of kidney failure has experienced what percentage of loss of the nephrons in the kidneys?

10%

25%

50%

75%

Ans:

D Feedback: Only 25% of the total number of nephrons is necessary to maintain healthy renal function so most patients must have experienced nephron loss of at least 75% to have signs and symptoms of kidney failure. The other options are not correct.

16.

What function does the kidney perform to assist in maintaining acidbase balance within the necessary normal range? Excrete acid in the lungs

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Return bicarbonate to the body’s circulation

Return acid to the body’s circulation

Excrete bicarbonate in the urine

Ans:

822

Feedback: The kidney performs two major functions to assist in this balance. The first is to reabsorb and return to the body’s circulation any bicarbonate from the urinary filtrate; the second is to excrete acid in the urine. Therefore, options A, C, and D are incorrect. 17.

A student asks the physiology instructor how bicarbonate is replaced by the body when a patient loses it from the body. What should the instructor answer?

The renal tubules secrete new bicarbonate into the urine.

The juxtaglomerular cells secrete new bicarbonate into the blood.

The juxtaglomerular cells generate new bicarbonate.

Renal tubular cells generate new bicarbonate.

Ans:

D Feedback: To replace any lost bicarbonate, the renal tubular cells generate new bicarbonate through a variety of chemical reactions. This newly generated bicarbonate is then reabsorbed by the tubules and returned to the body. This makes options A, B, and C incorrect.

18.

A student asks the pathophysiology instructor what the function of renin is in the body. What is the instructor’s best response to the student’s question?

Renin is directly involved in the control of arterial blood pressure and it is essential for proper functioning of the glomerulus.

Renin is involved in venous blood pressure and controls the flow of blood through the tubules.

Renin is directly involved in the control of arterial blood pressure and the flow of blood through the pyramids of the kidney.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Renin is involved in venous blood pressure and it is essential for proper functioning of the glomerulus.

Ans:

823

Feedback: Renin is a hormone directly involved in the control of arterial blood pressure. It is essential for proper functioning of the glomerulus. The other options are not correct. 19.

A 78-year-old patient presents at the clinic complaining of urinary problems. The patient tells the nurse that he experiences frequency, urgency, and has problems initiating and maintaining a urinary stream. Based on the patient’s age, what would the nurse suspect?

Enlarged prostate

Decreased bladder function

Increased kidney function

Partially obstructed ureter

Ans:

A Feedback: The ureters, urinary bladder, and urethra make up the rest of the urinary tract. The longer male urethra passes through the prostate gland, which may enlarge or become infected, a problem often associated with advancing age. The patient’s advancing age does not increase the risk of decreased bladder function, increased kidney function, or partially obstructed ureter.

20.

A daughter is talking with the urologist who is caring for the woman’s 78-year-old mother. The mother has multiple sclerosis and has lost control of her bladder. The daughter asks the urologist what made her mother become incontinent. What would be the urologist’s best answer?

I don’t know, but there are lots of medicines we can try to fix it.

After control of the bladder is learned, you must have a functioning nervous system to maintain it.

Your mother’s age has a lot to do with it.

This happens sometimes and no one is quite sure why.

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

824

Feedback: Control of bladder emptying is learned control over the urethral sphincter. Once it is established, a functioning nervous system is necessary to maintain control. 21.

A young woman presents with signs and symptoms of a urinary tract infection (UTI). What factor that has the most influence on this situation does the nurse know?

The woman has a short urethra.

The woman has multiple sexual partners.

The woman takes too many bubble baths.

The woman does not clean herself as she should.

Ans:

A Feedback: In the female, the urethra is a very short tube that leads from the bladder to an area populated by normal bacterial flora including Escherichia coli, which can cause frequent bladder infections or cystitis. Recurrent UTIs do not indicate the woman has multiple sexual partners, takes too many bubble baths, or does not clean herself adequately.

22.

The renal system has several major functions in the body. What are they? (Select all that apply.)

Acting as a diuretic for the body

Clearing nitrogenous wastes from protein metabolism

Regulating red blood cell production

Regulating blood pressure

Concentrating urine

Ans:

B, C, D, E Feedback: Maintaining the volume and composition of body fluids within normal ranges includes clearing nitrogenous wastes from protein metabolism; maintaining acidbase balance and electrolyte levels; excreting various drugs and drug metabolites; regulating vitamin D activation, which helps to maintain and regulate calcium levels; regulating blood pressure through the reninangiotensinaldosterone system;

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

825

and regulating red blood cell production through the production and secretion of erythropoietin. The renal system does not act as a diuretic. 23.

Where do the collecting ducts meet?

Renal pelves

Loop of Henle

Bowman’s capsule

Distal convoluted tubule

Ans:

A Feedback: The nephron widens at the distal convoluted tubule, then flows into the collecting ducts, which meet at the renal pelves. The collecting ducts do not meet in the loop of Henle, Bowman’s capsule, or distal convoluted tubule.

24.

A student asks the physiology instructor what regulates the flow of fluid into the glomerulus by increasing or decreasing pressure on either side of the glomerulus. What should the instructor respond?

The ascending and descending parts of the loop of Henle

The arterioles

The nephron

The venules

Ans:

B Feedback: The two arterioles around the glomerulus work together to closely regulate the flow of fluid into the glomerulus, increasing or decreasing pressure on either side of the glomerulus as needed. The loop of Henle is part of the nephron. The nephron does not regulate blood flow to the glomerulus, and option D is a distracter for this question.

25.

Much of the sodium in the filtrate is reabsorbed in the proximal convoluted tubule to the peritubular capillaries. As the sodium is moved out of the filtrate, what does it take with it? Calcium

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Magnesium

Chloride ions

Potassium ions

Ans:

826

Feedback: As sodium is actively moved out of the filtrate, it takes chloride ions and water with it. Sodium does not take calcium, magnesium, or potassium ions with it. 26.

Sodium ions are reabsorbed into the body by the aid of what catalyst?

Aldosterone

Sodium bicarbonate

Angiotensin

Carbonic anhydrase

Ans:

D Feedback: Carbonic anhydrase, an enzyme, speeds the process of carbon dioxide and water combining to form carbonic acid. The carbonic acid immediately dissociates to form sodium bicarbonate, using a sodium ion from the renal tubule and a free hydrogen ion (an acid). The other options are not correct.

27.

A student asks the physiology instructor where chloride is primarily reabsorbed. What would be the instructor’s best answer?

The loop of Henle

The nephron

The kidney

The distal convolute tubule

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

827

Feedback: Chloride is an important negatively charged ion that helps to maintain electrical neutrality with the movement of cations across the cell membrane. Chloride is primarily reabsorbed in the loop of Henle, where it promotes the movement of sodium out of the cell. The other options are not correct. 28.

The students are learning about maintaining electrolytes in the body by actions within the kidney. Where do the students learn the fine-tuning of potassium levels occurs?

Proximal convoluted tubule

Distal convoluted tubule

Loop of Henle

Glomerulus

Ans:

B Feedback: The fine-tuning of potassium levels occurs in the distal convoluted tubule, where aldosterone activates the sodiumpotassium exchange, leading to a loss of potassium. Therefore, options A, C, and D are not correct.

29.

What releases erythropoietin when blood flow or oxygenation to the nephron is decreased?

The countercurrent mechanism

The nephron

The juxtaglomerular cells

The glomerulus

Ans:

C Feedback: Whenever blood flow or oxygenation to the nephron is decreased (due to hemorrhage, shock, heart failure, or hypotension), the hormone erythropoietin is also released from the juxtaglomerular cells. Therefore, options A, B, and D are not correct.

30.

The nurse is caring for a patient who is in renal failure. When reviewing the patient’s laboratory values,

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

828

what would the nurse expect to find? A)

Increased hematocrit

Increased white blood cell count

Increased platelet count

Decreased hemoglobin

Ans:

D Feedback: Erythropoietin is the only known factor that can regulate the rate of red blood cell production. When a patient develops renal failure and the production of erythropoietin drops, the production of red blood cells also falls and the patient becomes anemic. Options A, B, and C are not correct.

31.

A nursing instructor is quizzing a group of students about the function of the nephron. The student must choose which processes that control the function of the nephron to answer the question correctly? (Select all that apply.)

Filtration

Dilution

Secretion

Reabsorption

Concentration

Ans:

A, C, D Feedback: The nephrons function by using three basic processes: filtration, secretion, and reabsorption. Dilution and concentration are functions of sodium regulation.

32.

A student is giving a presentation about the function of antidiuretic hormone and reports that it is released in response to what stimuli? (Select all that apply.) Falling blood volume

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Parasympathetic stimulation

Rising sodium levels

Rising calcium levels

Rising parathyroid hormone levels

Ans:

A, C

829

Feedback: Antidiuretic hormone (ADH) is released in response to falling blood volume, sympathetic stimulation, or rising sodium levels. It is not affected by rising calcium or parathyroid levels. Option B is not correct. 33.

A patient is being treated for dehydration and asks the nurse how the body maintains proper fluid composition and volume. The nurse correctly includes which regulatory mechanisms? (Select all that apply.)

Concentration of urine

Increased production of erythropoietin

Secretion of electrolytes

Dilution of urine

Increased blood pressure

Ans:

A, C, D Feedback: The kidneys regulate the composition of body fluids by balancing the levels of the key electrolytes, secreting or absorbing these electrolytes to maintain the desired levels. Body fluid volume is controlled by diluting or concentrating urine. Erythropoietin helps to increase red blood cell production, which helps increase oxygen to the organs. Increased blood pressure does not change the volume or composition of body fluids.

34.

The nursing instructor is explaining the function of natriuretic hormone in relation to urine composition. The instructor shares that this hormone is released in response to which conditions? (Select all that apply.) Fluid depletion

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Fluid overload

Hemodilution

Hemoconcentration

Decreased red blood cell production

Ans:

B, C

830

Feedback: Natriuretic hormone is released in response to fluid overload, not fluid depletion and hemodilution, and not hemoconcentration. Erythropoietin is released in response to decreased red blood cell production. 35.

The nurse, who works in the emergency department, is aware that the reninangiotensinaldosterone system works to maintain blood flow in the kidneys. What vital sign would signify the initiation of this system in a trauma patient?

Increased temperature

Decreased pulse

Decreased blood pressure

Pain level of 3 on a scale of 1 to 10

Ans:

C Feedback: The reninangiotensinaldosterone system is initiated in response to changes in blood volume, so that a decrease in blood pressure would be most likely to initiate this system. An increase in temperature, a decrease in pulse, and a pain level of 3 would not affect blood volume.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

831

Chapter 51 - Diuretic Agents

The class of diuretics that act to block the chloride pump in the distal convoluted tubules and leads to a loss of sodium and potassium and a minor loss of water is what?

Carbonic anhydrase inhibitors

Osmotic diuretics

Potassium-sparing diuretics

Thiazide diuretics

Ans:

D Feedback: Thiazide diuretics work to block the chloride pump, which leads to a loss of sodium, potassium, and some water. They are considered mild diuretics. Carbonic anhydrase inhibitors work to block the formation of carbonic acid and bicarbonate in the renal tubules. Osmotic diuretics use hypertonic pull to remove fluid from the intravascular spaces and to deliver large amounts of water into the renal tubules. Potassium-sparing diuretics are mild and act to spare potassium in exchange for the loss of sodium and water.

The nurse is providing discharge instructions to a 72-year-old patient who has been discharged home on a diuretic. What would the patient’s instructions regarding the use of a diuretic at home include?

Measuring intake and output of urine

To weigh themselves on the same scale, at the same time of day, in the same clothing

Restrict fluids to 500 mL/d to limit the need to urinate

Decrease exercise to conserve energy

Ans:

B Feedback: Patients taking a diuretic at home need to learn to weigh themselves every day, at the same time, and in the same clothes to monitor for loss or retention of fluid. They should not be asked to measure urine output or to decrease activity. Restricting fluids can lead to a rebound fluid retention when compensatory mechanisms are activated.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

832

The emergency department (ED) nurse is caring for a patient who is experiencing pulmonary edema. The patient is treated with furosemide (Lasix). What will the nurse monitor?

Sodium levels

Bone narrow function

Calcium levels

Potassium levels

Ans:

D Feedback: Furosemide is associated with loss of potassium, so that the patient will need to be monitored carefully for low potassium levels, which could cause cardiac arrhythmias and further aggravate pulmonary edema. The nurse would not monitor sodium or calcium levels or bone marrow function because of the effects of the drug during the acute treatment of pulmonary edema.

The nurse on the coronary unit is caring for a patient with known coronary artery disease who is being treated with cholestyramine (Questran) and hydrochlorothiazide (HydroDIURIL). What action will the nurse take?

Call the physician and refuse to give the drugs without further orders.

Make sure that the drugs are given at least 2 hours apart.

Give the patient an antacid with the drugs.

Check the patient’s blood glucose level before giving the drugs.

Ans:

B Feedback: Because of its effects in the GI tract, cholestyramine should be taken at least 2 hours earlier or later than hydrochlorothiazide to ensure the absorption of hydrochlorothiazide. This combination of drugs can be used effectively. An antacid would further aggravate drug absorption and would not be recommended. Blood glucose levels would not be affected by either of these drugs.

The pharmacology instructor is discussing diuretic drugs with the nursing class. What would the instructor cite as an adverse effect of loop diuretics? Hyperkalemia

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Alkalosis

Hypertension

Hypercalcemia

Ans:

833

Feedback: Alkalosis is a drop in serum pH to an alkaline state due to bicarbonate loss in urine. Hypokalemia, hypocalcemia, and hypotension are also adverse effect of these drugs. Therefore, the other options are not correct. 6.

A patient with glaucoma has been prescribed a diuretic as treatment of his or her disease process. What drug does the nurse suspect that the patient will be prescribed?

Acetazolamide (Diamox)

Spironolactone (Aldactone)

Chlorthalidone (Hygroton)

Bendroflumethiazide (Naturetin)

Ans:

A Feedback: Acetazolamide is used to treat glaucoma. The inhibition of carbonic anhydrase results in decreased secretion of aqueous humor of the eye. Spironolactone is a potassium-sparing diuretic used to treat edema caused by congestive heart failure, liver disease, hypertension, hyperkalemia, and hyperaldosterone. Chlorthalidone is a thiazide-like diuretic and bendroflumethiazide, a thiazide diuretic, are used to treat edema caused by congestive heart failure, liver disease, kidney disease, and as adjunct treatment of hypertension.

A patient comes to the clinic for a 1-month follow-up appointment. The patient tells the nurse he or she has been taking chlorothiazide (Diruil) for a month and now has leg cramps and feels tired all the time. What will the nurse consider as the cause of the patient’s symptoms?

Hypercalcemia

Hypocalcemia

Hyperkalemia

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Hypokalemia

Ans:

834

Feedback: Hypokalemia results from the loss of potassium in the distal tubule and causes muscle weakness, fatigue, and arrhythmias. Hyperkalemia presents with cardiac arrhythmias and occasionally muscle weakness. Hypercalcemia is characterized by fatigue, depression, mental confusion, nausea, vomiting, and constipation. Hypocalcemia presents with muscle spasms, facial grimacing, possible convulsions, irritability, and depression. 8.

A patient has been prescribed furosemide (Lasix). Because this drug causes potassium loss, what will the nurse instruct the patient to eat?

Peaches

Apples

Pears

Pineapple

Ans:

A Feedback: Peaches, as well as bananas, oranges, raisins, and other fruits, spices, and vegetables are high in potassium and consuming them should be encouraged when taking furosemide. Apples, pears, and pineapple, however, do not replace potassium in the body.

A 10-year-old child has edema caused by a heart defect. The patient is taking furosemide (Lasix). The dosage is 6 mg/kg/d. The child weighs 76 pounds. How many mg does the child receive in each dose?

20 mg

50 mg

105 mg

210 mg

Ans:

D Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

835

The nurse will administer 210 mg/dose of the drug (2.2 pounds: 1 kg = 76 pounds: × kg, 76 divided by 2.2 = 34.5, 35 times 6 = 210 mg). 10.

The nurse is caring for a patient who is taking acetazolamide (Diamox) for treatment of glaucoma. What drug, if taken with acetazolamide (Diamox), would cause the nurse to contact the physician?

Indomethacin (Indocin)

Colestipol (Colestid)

Lithium (Eskalith)

Ibuprofen (Motrin)

Ans:

C Feedback: An increase in the excretion of lithium can occur when taken with acetazolamide, so that special monitoring or a dosage adjustment may be necessary. Indomethacin, colestipol, and ibuprofen do not produce drug-to-drug interactions when given with acetazolamide.

11.

A 68-year-old patient, who has type 1 diabetes, is to receive hydrochlorothiazide (HydroDIURIL). Before administration of this medication, what information is most important for the nurse to communicate to the patient?

His or her insulin dose may need to be increased.

His or he insulin dose may need to be decreased.

He or she will need to have him or her urine checked for ketones four times a day.

He or she will need to have a creatinine clearance done once a month.

Ans:

A Feedback: Caution should be used with the following conditions, which include systemic lupus erythematosus (SLE), which frequently causes glomerular changes and renal dysfunction that could precipitate renal failure in some cases; glucose tolerance abnormalities or diabetes mellitus, which is worsened by the glucose-elevating effects of many diuretics; and gout, which reflects an abnormality in normal tubule reabsorption and secretion. There would be no reason to check ketones four times daily or to have a creatinine clearance once a month.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

12.

836

When evaluating an 82-year-old patient receiving hydrochlorothiazide (HydroDIURIL), what laboratory value deviations may be related to the medication?

Elevated uric acid levels

Reduced blood urea nitrogen (BUN) levels

A serum potassium level of 4.7 mEq/L

A hemoglobin A1C of 4.8

Ans:

A Feedback: Uric acid excretion is decreased because thiazides interfere with its secretory mechanism. High levels of uric acid can result in a condition called gout. Hydrochlorothiazide does not reduce BUN levels. Thiazide diuretics may lead to hypokalemia and increase blood glucose levels. The potassium and hemoglobin A1C levels are normal and not affected by the medication.

13.

What statement by the 62-year-old patient indicates that the patient understand the nurse’s teaching about diuretics?

I will weigh myself daily and report significant changes.

I will have to limit my high sugar foods.

If my leg gets swollen again, I’ll take an additional pill.

I will take my medication before bedtime on an empty stomach.

Ans:

A Feedback: Daily weights and blood pressures should be monitored at home in a patient taking diuretics. Options B, C, and D would indicate that further teaching is needed.

14.

The nurse is providing discharge instruction to a patient who has just begun using diuretics. The nurse counsels the patient that it is most important to monitor the intake of foods that contain which element?

Calcium

Potassium

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Glucose

Magnesium

Ans:

837

Feedback: Potassium is the most important element to monitor in the diet because diuretics are most likely to lead to hyper- or hypokalemia depending on the diuretic prescribed. Calcium, glucose, and magnesium may need to be monitored in the diet but potassium would be the most important. 15.

The nurse is talking with a group of nursing students. What drug would the nurse tell them, when combined with furosemide (Lasix), is likely to cause hearing loss?

Codeine

Ciprofloxacin (Cipro)

Digoxin (Lanoxin)

Gentamicin (Garamycin)

Ans:

D Feedback: The risk of ototoxicity increases if loop diuretics are combined with aminoglycoside antibiotics (gentamicin) or cisplatin. No known increased risk of ototoxicity exists when furosemide is taken with codeine, ciprofloxacin, or digoxin.

16.

A student asks the pharmacy instructor what the difference is between the diuretics spironolactone (Aldactone) and furosemide (Lasix). What would the instructor reply?

Potassium losses are lower with spironolactone.

Potassium losses are greater with spironolactone.

Water losses are greater with spironolactone.

Sodium losses are greater with spironolactone.

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

838

Feedback: Spironolactone is a potassium sparing diuretic; therefore, it promotes retention of potassium. Furosemide promotes greater water, sodium, and potassium losses than spironolactone. 17.

The nurse is caring for a patient with a severe head injury. An osmotic diuretic is ordered. The nurse understands which drug is an osmotic diuretic?

Spironolactone (Aldactone)

Bumetanide (Bumex)

Mannitol (Osmitrol)

Ethacrynic (Edecrin)

Ans:

C Feedback: Mannitol is an osmotic diuretic. Spironolactone is a potassium sparing diuretic. Bumetanide and ethacrynic are loop diuretics.

18.

The staff educator in the ICU is talking with a group of new nurses about osmotic diuretics. The educator would tell the new nurses that osmotic diuretics act on which site in the nephron?

Proximal tubule

Glomerulus

Ascending limb of loop of Henle

Collecting tubule

Ans:

B Feedback: These drugs are freely filtered at the renal glomerulus, poorly reabsorbed by the renal tubule, not secreted by the tubule, and resistant to metabolism. Therefore, options A, C, and D are not correct.

19.

A 64-year-old patient in hypertensive crisis is to receive furosemide (Lasix) 40 mg IV. Lasix comes in 100 mg/10 mL containers. How will the nurse administer the medication?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Give 4 mL over 1 to 2 minutes IV.

Give 4 mL over 10 minutes.

Flush the line with normal saline, give 1 mL/min, flush again when finished.

Fix 10 mL in an IV piggyback and deliver it over 30 minutes.

Ans:

839

Feedback: Administer furosemide (Lasix) 40 mg over 1 to 2 minutes IV. The other options are not correct. 20.

A 91-year-old patient is being discharged on the diuretic spironolactone (Aldactone). What is the major adverse effect of this type of medication?

Hypokalemia

Hyperkalemia

Gastric irritation

Hypertension

Ans:

B Feedback: The most common adverse effect of potassium-sparing diuretics is hyperkalemia, which can cause lethargy, confusion, ataxia, muscle cramps, and cardiac arrhythmias. Hypokalemia, gastric irritation, and hypertension are not recognized as adverse effects of spironolactone.

21.

The nurse is conducting an admission assessment of a patient who has been prescribed hydrochlorothiazide (HydroDIURIL). Which situation would contraindicate the administration of hydrochlorothiazide (HydroDIURIL)?

Allergy to sulfa drugs

Allergy to codeine

BP 160/96

Blood glucose level of 140 mg/dL

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

840

A Feedback: Thiazide and thiazide-like diuretics are contraindicated with allergy to thiazides or sulfonamides to prevent hypersensitivity reactions. The other options are not correct.

22.

The nurse is caring for a patient who has just been diagnosed with essential hypertension. The nurse is aware that the health care provider will begin therapy with which classification of diuretics?

Loop diuretics

Carbonic anhydrous inhibitors

Thiazide and thiazide-like diuretics

potassium-sparing diuretics

Ans:

C Feedback: Thiazides are considered to be mild diuretics compared with the more potent loop diuretics. These agents are the first-line drugs used to manage essential hypertension when drug therapy is needed. Loop and potassium-sparing diuretics and carbonic anhydrous inhibitors would be used in combination with or after the thiazide diuretics are no longer effective.

23.

A female patient has a history of frequent bladder infections. Which classification of diuretic would not be recommended for this patient?

Thiazide and thiazide-like diuretics

Loop diuretics

potassium-sparing diuretics

Osmotic diuretics

Ans:

A Feedback: Urine is slightly alkalinized when the thiazides or thiazide-like diuretics are used because they block reabsorption of bicarbonate. This effect can cause problems for patients who are susceptible to bladder

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

841

infections. Loop, potassium sparing, and osmotic diuretics do not have this effect. 24.

What is the term for the action of a diuretic in a patient with glaucoma?

Intraocular pressure (IOP)

Osmotic pull

Diuresis

Potassium sparing

Ans:

B Feedback: Glaucoma is an eye disease characterized by increased pressure in the eyeknown as intraocular pressure (IOP)which can cause optic nerve atrophy and blindness. Diuretics are used to provide osmotic pull to remove some of the fluid from the eye, which decreases IOP, or as adjunctive therapy to reduce fluid volume and pressure in the cardiovascular system, which also decreases pressure in the eye somewhat. Potassium sparing refers to a class of diuretics that help to retainpotassium.

25.

A patient has just begun to take a prescribed diuretic. Why would the nurse tell the patient to drink 8 to 10 glasses of water daily (unless it is counterindicated)?

To decrease the action of the reninangiotensin cycle

To make more concentrated plasma

To dilute the urine

To avoid rebound edema

Ans:

D Feedback: Care must be taken when using diuretics to avoid fluid rebound, which is associated with fluid loss. If a patient stops taking in water and takes the diuretic, the result will be a concentrated plasma of smaller volume. The decreased volume is sensed by the nephrons, which activate the renin-angiotensin cycle. When concentrated blood is sensed by the osmotic center in the brain, antidiuretic hormone (ADH) is released to retain water and dilute the blood. The result can be rebound edema as fluid is retained. Drinking 8 to 10 glasses of water will not decrease the action of the renin-angiotensin cycle, or make plasma more concentrated. It may produce urine that is dilute but that is not the reason it is recommended.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

26.

842

A patient has just been prescribed furosemide (Lasix). After reviewing the patient’s medication history, what drug would cause the nurse concern when taken with furosemide (Lasix)?

Acetaminophen

Ferrous sulfate (Feosol)

Naproxen sodium (Naprosyn)

Ampicillin

Ans:

C Feedback: Naproxen sodium is a nonsteroidal antiinflammatory drug. There may also be a decreased loss of sodium and decreased antihypertensive effects if these drugs are combined with indomethacin, ibuprofen, salicylates, or other nonsteroidal antiinflammatory drugs. The patient receiving this combination should be monitored closely and appropriate dosage adjustments should be made. There is no contraindication to the intercurrent use of acetaminophen, ferrous sulfate, or ampicillin.

27.

A patient with glaucoma has been prescribed acetazolamide (Diamox). What adverse effects would the nurse caution the patient about? (Select all that apply.)

Paresthesia

Confusion

Drowsiness

Vomiting

Hyperkalemia

Ans:

A, B, C Feedback: Metabolic acidosis is a relatively common and potentially dangerous adverse effect that occurs when bicarbonate is lost. Hypokalemia is also common. Patients also complain of paresthesias of the extremities, confusion, and drowsiness. Vomiting and hyperkalemia are not common adverse effects

28.

A patient who was recently prescribed spironolactone calls the clinic and complains that he is not urinating as much as he did when he first started taking this medication. What would be an appropriate question for the nurse to ask this patient?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Are you taking a salicylate?

Are you taking acetaminophen?

Are you taking ibuprofen?

Are you using a lot of salt?

Ans:

843

Feedback: The diuretic effect decreases if potassium-sparing diuretics are combined with salicylates. Dosage adjustment may be necessary to achieve therapeutic effects. There is no decrease in effect when spironolactone is combined with acetaminophen, ibuprofen, and increased sodium intake. 29.

The nurse is writing a plan of care for a patient who is taking a diuretic. What would be an appropriate nursing diagnosis for this patient?

Impaired urinary elimination

Monitor the patient response to the drug

Imbalanced nutrition: More than body requirements

Risk for fluid volume overload

Ans:

A Feedback: Nursing diagnoses related to drug therapy may include impaired urinary elimination related to drug effect. Options B, C, and D would not be appropriate nursing diagnoses.

30.

A patient has been prescribed hydrochlorothiazide (HydroDIURIL) and the nurse is preparing to give the patient discharge instructions. Which adverse effects may this patient experience while taking this medication? (Select all that apply.)

Constipation

Dizziness

Polyphagia

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Nocturia

Muscle cramps

Ans:

B, D, E

844

Feedback: The adverse effects associated with hydrochlorothiazide are dizziness, vertigo, orthostatic hypotension, nausea, anorexia, vomiting, dry mouth, diarrhea, polyuria, nocturia, muscle cramps, and spasms. The patient would not experience polyphagia (great hunger) and constipation. 31.

A patient has just begun therapy with furosemide (Lasix), and the nurse is instructing the patient about the need to include foods high in potassium in the diet. Which foods would be appropriate for this patient to choose? (Select all that apply.)

Prunes

Apples

Watermelon

Lima beans

Rice

Ans:

A, C, D Feedback: Foods high in potassium include avocados, bananas, broccoli, cantaloupe, dried fruits, grapefruit, lima beans, nuts, navy beans, oranges, peaches, potatoes, prunes, rhubarb, Sanka coffee, sunflower seeds, spinach, tomatoes, and watermelon. Apples and rice are not potassium-rich foods.

32.

A nursing instructor is teaching a group of students about loop diuretics. Which would be included in this classification? (Select all that apply.)

Acetazolamide

Torsemide

Ethacrynic acid

Mannitol

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Bumetanide

Ans:

B, C, E

845

Feedback: Torsemide, ethacrynic acid, and bumetanide are examples of loop diuretics. Acetazolamide is a carbonic anhydrous inhibitor and mannitol is an osmotic diuretic. 33.

The nurse is caring for a patient with edema who has just begun taking a diuretic. What will the nurse use to evaluate the effectiveness of this medication? (Select all that apply.)

Daily weight

Decrease in edema

Increase in blood pressure

Increase in urinary output

Increase in pulse

Ans:

A, B, D Feedback: Responsiveness to the use of a diuretic can be measured by daily weights, increased urinary output, decrease in edema, decrease in blood pressure and pulse rate. Options C and E are not correct.

34.

The nurse has just administered 150 g of mannitol IV to a patient with increased intracranial pressure. What is most important for the nurse to monitor in the hour after administration?

Weight of patient

Blood pressure of patient

Pulse of patient

Respiratory rate of patient

Ans:

B Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

846

The most common and potentially dangerous adverse effect related to an osmotic diuretic is the sudden drop in fluid levels. Mannitol peaks 1 hour after administration, therefore, it would be most important to monitor blood pressure. Weight is the best indicator over time but would not be as effective in indicating a dangerous fluid drop as the blood pressure. Respiratory and pulse rates would also not be as effective as blood pressure in evaluating dangerous fluid drops.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

847

Chapter 52 - Drugs Affecting the Urinary Tract and the Bladder

The clinic nurse is admitting a 39-year-old woman who has come to the clinic complaining of left-sided tenderness, fever, chills, and flank pain. What does the nurse suspect the patient has?

Cystitis

Kidney stones

Neurogenic bladder

Pyelonephritis

Ans:

D Feedback: The fever and chills indicate an inflammatory process. Flank pain and left-sided tenderness indicate kidney swelling within the capsule. These symptoms indicate pyelonephritis. Kidney stones cause intense pain; fever and chills would not be present. Cystitis and neurogenic bladder present with bladder-related symptoms such as frequency, urgency, burning, and bloating.

The nurse is caring for four patients. Which patient would flavoxate (Urispas), a urinary tract medication, be indicated for?

A 1-year-old girl

A 6-year-old boy

A 10-year-old boy

A 14-year-old girl

Ans:

D Feedback: Flavoxate prevents smooth muscle spasm in the urinary tract and can be given to children older than 12 years of age. Oxybutynin and phenazopyridine may be given to children 6 years old and older. Guidelines for use of an antispasmodic for a child younger than 6 have not been established.

The nurse is discussing the effects of doxazosin (Cardura) with a 65-year-old man who has just been diagnosed with benign prostatic hyperplasia (BPH). The patient asks the nurse whether the drug will make him impotent. After the discussion with the patient, the nurse determines that a potential priority

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

848

nursing diagnosis could be what? A)

Sexual dysfunction related to adverse effects

Deficient knowledge regarding drug therapy

Noncompliance with drug therapy related to adverse effects

Acute pain related to adverse effects

Ans:

C Feedback: The patient is concerned about his ability to perform sexually. Sexual dysfunction is a possible adverse effect and would be a concern for this patient. However, he has not started taking the drug. The nurse is concerned about noncompliance because of the possibility of this adverse effect. This is an important part of a man’s life and most men would not want to take medication that would cause sexual dysfunction. Headache is an adverse effect of drugs used for BPH, but it can be tolerated and treated with an analgesic. Deficient knowledge about the drug is a concern, but usually men who know that sexual dysfunction is a possible adverse effect of a drug will find out all they can about the drug. Acute pain is not related to this drug.

A businesswoman who is leaving on a business trip the next day tells the nurse she knows she has cystitis and does not want to have to mess with medicine while she is gone. What drug would be a good choice for this patient?

Fosfomycin (Monurol)

Methenamine (Hiprex)

Nitrofurantoin (Furadantin)

Norfloxacin (Noroxin)

Ans:

A Feedback: Fosfomycin would be a good choice for this patient because it has the convenience of a single dose. Methenamine is taken either twice a day or up to four times a day. This drug could interfere with the patient’s busy schedule. Nitrofurantoin is also prescribed four times a day and would also be inconvenient for the patient. Norfloxacin is taken every 12 hours and could be inconvenient as well.

The nurse is performing patient teaching about the urinary anti-infective methenamine (Hiprex). What information is most important for the nurse to share with this patient?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Limit fluid intake.

Drink orange juice once a day.

Take the medication with food.

Take the medication at night before going to bed.

Ans:

849

Feedback: The patient should take the medication with food to decrease GI adverse effects. The nurse would encourage the patient to increase fluid intake to flush the bladder and urinary tract frequently and decrease the opportunity for bacteria growth. Orange juice would be contraindicated because it could cause an alkaline rash and produce alkaline urine, which encourages bacterial growth. This drug is taken two to three times a day and not in a single dose at night. 6.

The nurse is assessing a patient who is taking oxybutynin (Ditropan). What would be the priority nursing assessment for this patient?

Skin condition

Cardiac arrhythmia

Vision changes

Mental status

Ans:

C Feedback: The nurse should assess for vision changes and recommend an ophthalmologic examination during treatment to evaluate drug effects on intraocular pressure so that the drug can be stopped if intraocular pressure increases. A rash and changes in cardiac rhythm and rate are possible adverse effects. Also, disorientation (mental status) could be a concern. However, these effects can be treated and may not necessitate stopping the medication.

A patient is taking phenazopyridine (Azo-Standard) and ciprofloxacin (Cipro) for a urinary tract infection. What is the most important instruction the nurse needs to provide to the patient concerning this drug combination? Do not be alarmed if your urine is a reddish-brown color.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Be sure to take your medication with food if you have GI irritation.

Increase your fluid intake. Drink lots of water.

If you notice yellowing of your eyes or skin, contact your health care provider immediately.

Ans:

850

Feedback: Yellowing of the sclera and skin is a sign of drug accumulation in the body and a possible sign of hepatic (liver) toxicity. Phenazopyridine should not be used more than 2 days, especially if taken, as here, with an antibacterial agent (ciprofloxacin). The other suggested options are important and should be included in the instructions given the patient. However, the possibility of toxicity is the most important. 8.

A patient is taking pentosan polysulfate sodium (Elmiron) to decrease pain and discomfort associated with interstitial cystitis. What medication class may cause an adverse reaction when used with Elmiron?

Anticoagulants

Antihypertensives

Diuretics

Cardiac glycosides

Ans:

A Feedback: Anticoagulants may react with pentosan polysulfate sodium (Elmiron). This drug has anticoagulant and fibrinolytic effects, which could lead to potential or increased bleeding risks. Antihypertensives, diuretics, and cardiac glycosides do not cause drugdrug interactions with pentosan polysulfate sodium (Elmiron).

A pregnant woman is helping her elderly father with taking his medications. He is taking dutasteride (Avodart). The nurse will instruct the daughter to do what?

Crush the tablets to help facilitate swallowing.

Avoid touching any crushed or broken tablets.

Avoid direct contact with her father while he is on the medication.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Use a barrier contraceptive while helping her father prepare the drug.

Ans:

851

Feedback: Dutasteride contains androgenic hormone blockers that could be absorbed through the skin if the tablets are crushed and broken. These hormone blockers could have negative effects on a fetus. The woman should be cautioned not to touch any crushed or broken tablets. Her father will not pose a threat to her because of this drug therapy. She should not need barrier contraceptives if she is pregnant. 10.

A patient is being treated for benign prostatic hyperplasia (BPH). The patient asks the nurse how the medicine used to treat BPH is supposed to work. The nurse explains that the drug therapy is designed to relieve the symptoms associated with this condition by doing what?

Shrinking the gland and/or relaxing the sphincter of the bladder

Increasing testosterone levels to improve sexual functioning

Increasing blood pressure, which will increase blood flow to the area

Activate nitric acid, which will dilate blood vessels in the area to relieve pressure

Ans:

A Feedback: Drugs given to treat BPH will block sympathetic activity to allow relaxation of the sphincter of the bladder or will decrease testosterone effects to shrink the gland and relieve symptoms. They do not increase testosterone levels or blood pressure. Dilating blood vessels would further congest the gland and increase symptoms.

11.

The pharmacology students are learning about medications used to treat urinary tract problems. What symptoms does phenazopyridine treat?

Urinary retention

Hematuria

Pain and urgency

Hesitancy

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

852

Feedback: Phenazopyridine is an azo dye that acts as a urinary analgesic and relieves symptoms of dysuria, burning, and frequency and urgency of urination. Phenazopyridine does not treat urinary retention, hematuria, or hesitancy. 12.

The nurse is providing health teaching to a 62-year-old female patient who has been started on norfloxacin (Noroxin). This patient should be taught to contact her physician if she experiences what adverse effect?

Polydipsia

Tachycardia

Confusion

Hypertension

Ans:

C Feedback: Urinary tract anti-infectives infrequently cause pruritus, urticaria, headache, dizziness, nervousness, and confusion. Norfloxacin is not known to cause polydipsia, tachycardia, or hypertension.

13.

A 50-year-old man calls the clinic nurse and complains of gastrointestinal upset after taking nitrofurantoin (Furadantin) on an empty stomach. What recommendation should the nurse make?

Stopping the medication

Taking vitamin C along with the medication

Taking the medicine with or after meals

Continuing to take the medicine on an empty stomach

Ans:

C Feedback: These adverse effects may result from GI irritation caused by the agent, which may be somewhat alleviated if the drug is taken with food, or from a systemic reaction to the urinary tract irritation. The nurse would not tell the patient to stop taking the medication without a physician’s order to do so nor would the nurse tell the patient to continue taking the medication on an empty stomach. Advising the patient to take the medication along with vitamin C would be of no benefit to the patient described in the question.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

14.

853

A 72-year-old female clinic patient is started on cinoxacin (Cinobac) for a urinary tract infection. Before administering this drug, the nurse should assess the patient for what condition?

Asthma

Hypertension

Diabetes mellitus

Renal insufficiency

Ans:

D Feedback: Cinoxacin should be used with caution in the presence of renal dysfunction, which could interfere with the excretion and action of this drug. The patient’s having asthma, hypertension, or diabetes mellitus would not be a contraindication to the use of this drug.

15.

The nurse is caring for a 79-year-old male patient who was admitted through the emergency room for mental status changes determined to be caused by a urinary tract infection. The patient is started on norfloxacin (Noroxin) before his discharge home. What adverse effect should the nurse observe this patient for?

Liver toxicity

Photosensitivity

Excess saliva

Congestive heart failure

Ans:

B Feedback: Adverse effects include photosensitivity, headache, dizziness, nausea, vomiting, dry mouth, and fever. Generally, adverse effects of norfloxacin do not include liver toxicity, bone marrow depression, or congestive heart failure.

16.

A clinic patient has been prescribed phenazopyridine (Pyridium) for aid in treating a UTI. This patient should be informed that Pyridium will turn urine what color? Bluish-green

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Reddish-orange

Brown

Black

Ans:

854

Feedback: Phenazopyridine turns urine reddish-orange, which may be mistaken for blood. It does not cause the urine to appear bluish-green, brown, or black. 17.

A small group of nursing students are giving an oral presentation to their classmates about urinary tract infections (UTIs). What is a measure that can be used to encourage patients to use to reduce the risk of recurrent urinary tract infections?

Increase alkaline foods in your diet.

Take tub baths, soaking 15 minutes daily.

Use sterile gauze pads to cleanse after urinating.

Drink 2,000 to 3,000 mL of fluid daily.

Ans:

D Feedback: Many activities are necessary to help decrease bacteria in the urinary tract (e.g., hygiene measures, proper diet, forcing fluids), to facilitate the treatment of UTIs, and help the urinary tract anti-infectives be more effective. Forcing fluids increases the amount of urine that is excreted and prevents urine from sitting in the bladder. It is helpful to keep the urine acidic, not alkaline and avoid sitting in water. The importance of cleansing is to cleanse from front to back. The use of sterile wipes is not necessary.

18.

What is the drug of choice in a patient with renal impairment who is being treated for a urinary tract infection (UTI)?

Salazopyrin

Silver sulfadiazine

Declomycin

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Fosfomycin

Ans:

855

Feedback: The dosage of fosfomycin, given orally, does not need to be changed in cases of renal impairment. It is the only medication listed here that is used in the treatment of urinary tract infections. Declomycin may be used to inhibit antidiuretic hormone in the treatment of chronic inappropriate antidiuretic hormone secretion. Salazopyrin is used in ulcerative colitis. Silver sulfadiazine is used topically to treat Pseudomonas infections. 19.

Urinary anti-infectives are used only to treat urinary tract infections (UTIs). What causes urinary antiinfectives to be so effective in treating UTIs?

They sterilize feces.

They act specifically within the urinary tract.

They reach high plasma levels in a short period of time.

They are excreted through the liver.

Ans:

B Feedback: Urinary tract anti-infectives act specifically within the urinary tract to destroy bacteria, either through a direct antibiotic effect or through acidification of the urine. They are not used in systemic infections because they do not attain therapeutic plasma levels. These drugs are usually excreted through the kidneys not through the liver, and they do not sterilize feces.

20.

The nurse is caring for a patient who is taking a urinary anti-infective. What would the nurse need to assess this patient for?

Discolored urine

Jaundice

Signs and symptoms of continuing urinary tract infection (UTI)

Flank pain

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

856

Feedback: Monitor patient response to the drug (i.e., resolution of UTI and relief of signs and symptoms) and repeat culture and sensitivity tests as recommended for evaluation of the effectiveness of all of these drugs. It would not be necessary to assess for discolored urine, jaundice, or flank pain. 21.

The nurse is writing a plan of care for an 85-year-old male patient admitted through the emergency room with a severe urinary tract infection. What intervention, if noted on the care plan, would be an inappropriate for this patient?

Encourage the patient to drink cranberry juice as part of his daily fluid intake.

Avoid urinary catheterization when possible.

Force fluids unless contraindicated.

Administer antacids to decrease GI irritation caused by the medication.

Ans:

D Feedback: It would not be appropriate to administer antacids because it will cause the urine to be alkaline and provide more opportunity for bacterial growth. The patients should be encouraged to force fluids and to include cranberry juice in those fluids to help acidify the urine. Avoiding urinary catheterization is an important nursing intervention in all patients because catheterization can allow introduction of bacteria in the bladder.

22.

A patient with benign prostatic hypertrophy (BPH) has been prescribed terazosin (Hytrin). How do alpha-adrenergic blockers, such as terazosin, assist in treating the symptoms of BPH?

They increase gastric motility.

They increase skeletal muscle contraction.

They inhibit contraction of the urinary bladder.

They decrease blood pressure.

Ans:

C Feedback: Alpha1-adrenergic blockers block postsynaptic alpha1-adrenergic receptors, which results in a dilation of arterioles and veins and a relaxation of sympathetic effects on the bladder and urinary tract. This action makes these drugs useful in the treatment of BPH. BPH is characterized by obstructed urine flow

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

857

as the enlarged prostate gland presses on the urethra. Alpha1-blocking agents can decrease urinary retention and improve urine flow by relaxing muscles in the prostate and urinary bladder. Options A, B, and D are not correct. 23.

A 72-year-old man presents at a blood donor drive. The patient tells the nurse he donates blood on a regular basis. While reviewing the patient’s medication history, the nurse notes he is taking dutasteride (Avodart) for his benign prostatic hyperplasia (BPH). What would the nurse know is a contraindication to this patient giving blood?

The testosterone blocking effects will be passed to those receiving the blood.

Blood donation may cause malignant hyperthermia to occur during the donation.

Severe hypotension may occur during blood donation.

Malignant hypertension may occur during blood donation.

Ans:

A Feedback: Patients using either finasteride or dutasteride cannot donate blood for 6 months after the last dose to protect potential blood recipients from exposure to the testosterone blocking effects. The use of the drug dutasteride will not cause this patient to develop malignant hyperthermia, malignant hypertension, or severe hypotension during blood donation.

24.

The clinic nurse is providing care for a patient with a urinary tract infection (UTI). Which drug would the nurse expect to administer to this patient?

Solifenacin

Pentosan polysulfate sodium

Norfloxacin

Alfuzosin

Ans:

C Feedback: Norfloxacin is a urinary anti-infective that is used in the treatment of adults with UTIs caused by susceptible strains of bacteria, uncomplicated urethral and cervical gonorrhea, and prostatitis caused by Escherichia coli. Solifenacin is an antispasmodic, pentosan polysulfate sodium is a bladder protectant, and alfuzosin is used in the treatment of benign prostatic hyperplasia (BPH).

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

25.

858

Urinary tract infections (UTIs) in children do occur. If a child has repeated UTIs, what would be important to assess for? (Select all that apply.)

Obstruction

Sexual abuse

Drinking apple juice

Bubble baths

Drinking too much water

Ans:

A, B, D Feedback: Some children, because of congenital problems or in-dwelling catheters, require other urinary tract agents such as urinary tract analgesics or antispasmodics. A child with repeated UTIs should be evaluated for potential sexual abuse. Children need to be instructed in proper hygiene and should not be given bubble baths if UTIs occur. Repeated UTIs can be related to drinking alkaline juices such as orange or grapefruit, but not apple. Children should be encouraged to drink a lot of water. Drinking too much water would not cause repeated infections.

26.

A 77-year-old man has been placed on alfuzosin (Uroxatral) for his benign prostatic hyperplasia (BPH). The nurse explains to the patient that because of the medication he is taking, it will be necessary to monitor for what? (Select all that apply.)

Pulse pressure

Intraocular pressure

Fluid intake

Blood pressure

Bladder emptying

Ans:

B, D, E Feedback: Special precautions to monitor cardiac function, intraocular pressure, blood pressure, and bladder emptying need to be taken when using alpha-adrenergic blockers with these patients. It would not be necessary to monitor pulse pressure or fluid intake in this patient.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

27.

859

A 72-year-old man is being treated with doxazosin (Cardura) for his BPH. What nursing diagnosis would be important to include in this patient’s plan of care?

Sexual dysfunction

Chronic pain

Disturbed sensory perception

Risk of impaired urinary elimination

Ans:

A Feedback: Nursing diagnoses related to drug therapy might include sexual dysfunction related to drug effects, acute pain related to headache, central nervous system (CNS) effects, and GI effects of the drug, risk for injury related to blockage of alpha receptors, and deficient knowledge regarding drug therapy. The nursing diagnosis of risk of impaired urinary elimination would not be appropriate because the effect of the drug is to improve urinary elimination issues.

28.

You are preparing a plan of care for a 78-year-old female patient who has been hospitalized with a recurrent urinary tract infection (UTI). What would be important to assess for before administering a urinary tract antispasmodic? (Select all that apply.)

Allergy to eggs

Glaucoma

Pyloric obstruction

Dumping syndrome

Duodenal obstruction

Ans:

B, C, E Feedback: Assess for contraindications or cautions: any history of allergy to these drugs to prevent hypersensitivity reactions; pyloric or duodenal obstruction; or other GI lesions or obstructions of the lower urinary tract, which could be dangerously exacerbated by these drugs; glaucoma, which could increase intraocular pressure due to blockage of the parasympathetic nervous system; and current status of pregnancy or lactation, which would require cautious use. It would not be necessary to assess this patient for an allergy to eggs or dumping syndrome.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

29.

860

What would be an appropriate nursing intervention for a patient on a urinary tract antispasmodic?

Monitor for patient use of hot showers.

Advise patient about change in color of sclera.

Offer sugarless hard candy.

Teach proper personal hygiene.

Ans:

C Feedback: Offer frequent sips of water or use of sugarless hard candy to alleviate dry mouth because antispasmodics have anticholinergic effects that cause dry mouth. The use of hot water for showers will not cause the patient any danger. Urinary antispasmodics do not cause changes in the sclera. This patient has an issue with bladder spasms and not a urinary tract infection.

30.

The nurse is providing health teaching to a patient who is taking methenamine (Hiprex). What instruction would be most important to include for the patient taking Hiprex?

Drink citrus juice with the medication to acidify the urine.

Take sodium bicarbonate with the medication to make the urine alkaline.

Limit your fluid intake to 8 ounce per day.

While you are taking this drug, limit your intake of foods high in sodium.

Ans:

A Feedback: Urinary tract anti-infectives act specifically within the urinary tract to destroy bacteria, either through a direct antibiotic effect or through acidification of the urine. Therefore, the nurse would not instruct the patient to take sodium bicarbonate, limit fluid intake, or limit their intake of foods high in sodium.

31.

The nurse is caring for a patient who is beginning treatment for benign prostatic hyperplasia and knows that this patient may be treated with which classification of drugs? (Select all that apply.)

Urinary anti-infectives

Urinary antispasmodics

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Alpha-adrenergic blockers

Testosterone production blockers

Urinary analgesics

Ans:

C, D

861

Feedback: Alpha-adrenergic blockers and testosterone production blockers are drugs used in the treatment of benign prostatic hyperplasia. Urinary anti-infectives are used to treat urinary tract infections. Urinary antispasmodics are used to treat bladder spasms and urinary analgesics are used in the treatment of pain associated with urinary tract infections. 32.

The nurse is caring for a patient with a bladder infection. What symptoms are most common with this type of infection? (Select all that apply.)

Frequency

Urgency

Dysuria

Flank pain

Temperature elevation over 102°F

Ans:

A, B, C Feedback: Patients with bladder infection most commonly experience urinary frequency, urgency, and burning on urination (dysuria). Patients with pyelonephritis also experience flank pain and temperature elevation.

33.

A patient with interstitial cystitis has just begun to take pentosan polysulfate sodium (Elmiron). The nurse would notify the physician if the patient exhibited which symptom(s). (Select all that apply.)

Petechiae

Anorexia

Decreased blood pressure

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Blood in the urine

Headache

Ans:

A, C, D

862

Feedback: Adverse effects associated with pentosan use include bleeding that may progress to hemorrhage (related to the drug’s heparin effects), headache, alopecia, and GI disturbances. It would be necessary to notify the physician if the patient showed any signs of bleeding. Anorexia and headaches are not associated with this drug. 34.

The nurse is providing discharge instructions to a patient who is taking pentosan polysulfate sodium (Elmiron). Which statement by the patient indicates a need for further instruction?

I will make sure and take this medication with my breakfast.

I will call the doctor if I start to have any unusual bruises.

This drug I am taking may cause me to lose hair.

I will take acetaminophen if I develop a headache.

Ans:

A Feedback: Pentosan polysulfate sodium should be taken on an empty stomach, either 1 hour before or 2 hours after meals. The patient should call the physician at the first sign of bleeding. Alopecia and headache may occur with this medication.

35.

A patient with benign prostatic hyperplasia has been self-treating with an herbal called saw palmetto. The nurse would know which drug is contraindicated in this patient?

Tamsulosin (Flomax)

Finasteride (Proscar)

Alfuzosin (Uroxatral)

Terazosin (Hytrin)

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

863

Feedback: Saw palmetto is an herbal therapy that has been used very successfully for the relief of symptoms associated with benign prostatic hyperplasia (BPH). Patients with BPH should be cautioned not to combine saw palmetto with finasteride because serious toxicity can occur. There is no contraindication in the use of tamsulosin, alfuzosin, and terazosin, which are alpha-adrenergic blockers. Finasteride is a testosterone blocking agent.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

864

Chapter 53 - Introduction to the Respiratory System

A nurse is discussing ways the body protects itself against infection. What are the microscopic, hairlike projections of the cell membrane found in the nasal cavity, which transport foreign substances toward the throat where it can be swallowed and kept away from the respiratory system?

Goblet cells

Cilia

Alveolar sacs

Sinuses

Ans:

B Feedback: Cilia are found in the epithelial cells of the lining of the nasal cavity and are constantly in motion directing mucus and trapped substances down toward the throat. Goblet cells are found in the epithelial lining and produce mucus, which traps foreign substances. Alveolar sacs are located in the lower respiratory tract and are considered the functional units of the lung. Sinuses are air-filled passages through the skull, which open into the nasal cavity.

A 39-year-old teacher with bronchitis has been up all night with intense coughing spasms and asks the nurse How is all this coughing related to my bronchitis? The nurse tells the patient that a cough is initiated by what?

Irritation to receptors in the nasal cavity

Irritation to receptors in the bronchi

Irritation to receptors in the pharynx

Irritation to receptors in the sinus cavities

Ans:

B Feedback: Irritation to bronchial receptors will initiate a cough, which causes air to be pushed through the bronchial tree. Irritation to receptors in the nasal cavity, pharynx, and sinuses are more likely to initiate the sneeze reflex.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

865

A woman has just given birth to a premature infant. The mother asks why the infant is having such a hard time breathing. The nurse explains that the infant’s alveoli are unable to stay open. What is the infant lacking that is necessary for correct functioning of the alveoli?

Adenosine triphosphate (ATP)

Histamine

Serotonin

Surfactant

Ans:

D Feedback: Surfactant is a lipoprotein that decreases the surface tension in the sac and prevents alveolar collapse. ATP, histamine, and serotonin are released from mast cells throughout the airway to ensure a quick and intense inflammatory reaction to any cell injury, which may lead to a respiratory infection.

The nurse is caring for a patient who suffered a head injury and is now having difficulty breathing. The nurse knows that this patient may have injured what part of the central nervous system?

Cerebral cortex

Cerebellum

Hypothalamus

Medulla oblongata

Ans:

D Feedback: The act of breathing is controlled by the medulla, which depends on a functioning muscular system and a balance between the sympathetic and parasympathetic systems. The cerebral cortex, cerebellum, and hypothalamus are not involved with this process.

The nurse in the clinic is caring for a patient who has seasonal rhinitis and the patient wants to know what causes this to occur. What is the nurse’s best response?

You are experiencing symptoms because bacteria have entered the nose and caused an infection.

Your upper airways are experiencing an inflammatory response to an inhaled antigen that is

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

866

causing you to have sneezing and watery eyes. C)

Your sympathetic nervous system is responding to an acute amount of stress in your life causing you to have nasal congestion.

Your runny nose and sneezing have occurred because a portion of your lung has collapsed.

Ans:

B Feedback: Seasonal rhinitis usually occurs when the upper airways become inflamed because of the body’s response to an inhaled antigen. The lungs do not collapse and the sympathetic system’s response to stress usually opens the airways and does not cause inflammation. Bacteria entering the nose do not cause inflammation of the rest of the upper airways.

A nurse is caring for a 73-year-old woman who just arrived on the medical surgical floor following a radical mastectomy for breast cancer. The nurse will encourage the patient to cough and breathe deeply to help prevent what?

Atelectasis

Asthma

Bronchiectasis

Sinusitis

Ans:

A Feedback: Atelectasis most commonly occurs as a result of airway blockage, which prevents air from entering the alveoli, keeping the lung expanded. This occurs when a mucous plug, edema of the bronchioles, or a collection of pus or secretions occludes the airway and prevents the movement of air. Patients may experience atelectasis after surgery, when the effects of anesthesia, pain, and decreased coughing reflexes can lead to a decreased tidal volume and accumulation of secretions in the lower airways. Asthma, bronchiectasis, and sinusitis are not directly related to surgery but instead result from other conditions.

A nurse is caring for a 45-year-old patient with acute respiratory distress syndrome (ARDS). The nurse is aware that this disease is characterized by what?

Accumulation of copious amounts of very thick secretions in the lungs

Loss of elastic tissue of the lungs and destruction of alveolar walls

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Progressive loss of lung compliance and increasing hypoxia

Reversible bronchospasm, inflammation, and hyperactive airways

Ans:

867

Feedback: ARDS is characterized by progressive loss of lung compliance and increasing hypoxia and occurs as a result of a severe insult to the body. Accumulation of copious amounts of thick secretions in the lungs is associated with cystic fibrosis. Chronic obstructive pulmonary disease (COPD) is characterized by loss of the elastic tissue of the lung, destruction of alveolar walls, and hyperinflation with tendency to collapse with expiration. Reversible bronchospasm, inflammation, and hyperactive airways are characteristics of asthma. 8.

A nurse is caring for an 80-year-old patient with pneumonia. The most appropriate nursing diagnosis for this patient would be what?

Dysfunctional ventilatory weaning response

Impaired gas exchange

Ineffective health maintenance

Risk for delayed development

Ans:

B Feedback: Pneumonia causes swelling, engorgement, and exudation of protective sera in the lower respiratory tract. The respiratory membrane is affected, resulting in decreased gas exchange. There is no indication that the patient has been on a ventilator so a diagnosis that concerns weaning is not appropriate. There is also no indication that this patient has pneumonia because of ineffective health maintenance and because the patient is 80 years old, a diagnosis of risk for delayed development is also inappropriate.

The nursing instructor is teaching a class on respiratory disorders and asks the students What condition is a result of the upper airways response to pollen, mold, or dust?

Cystic fibrosis

Adult respiratory distress syndrome (ARDS)

Atelectasis

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Seasonal rhinitis

Ans:

868

Feedback: Seasonal rhinitis is an inflammation of the nasal cavity; it occurs when the upper airways respond to a specific antigen such as pollen, mold, or dust. Cystic fibrosis, atelectasis, and ARDS are not associated with an allergic response. 10.

A patient is complaining of an inability to breathe nasally because of severe rhinitis. The nurse is aware that the nose plays what important role in breathing that is disrupted when the nasal passages are blocked?

It decreases the number of pathogens inhaled.

Inspired air is warmed and humidified.

Carbon dioxide will not be inhaled.

It simulates surfactant release from the alveoli.

Ans:

B Feedback: Air usually moves into the body through the nose and into the nasal cavity. The nasal hairs catch and filter foreign substances that may be present in the inhaled air. The air is warmed and humidified as it passes by blood vessels close to the surface of the epithelial lining in the nasal cavity. The epithelial lining contains goblet cells that produce mucus. This mucus traps dust, microorganisms, pollen, and any other foreign substances. The epithelial cells of the lining also contain ciliamicroscopic, hair-like projections of the cell membranewhich are constantly moving and directing the mucus and any trapped substances down toward the throat (Figure 53.2). The action of the goblet cells and cilia is commonly called the mucociliary escalator. It does not affect carbon dioxide or pathogen inhalation and does not stimulate surfactant release.

11.

A patient asks the nurse what causes a cold. The nurse would tell the patient that the common cold is most often caused by which type of microorganism?

Gram-positive bacteria

Gram-negative bacteria

Virus

Fungus

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

869

C Feedback: Various viruses cause the common cold. These viruses invade the tissues of the upper respiratory tract, initiating the release of histamine and prostaglandins and causing an inflammatory response. Bacteria and fungi can cause a respiratory infection but the disorder commonly known as a cold is caused by a virus.

12.

The anatomy and physiology teacher is discussing ventilation with the nursing students. What would the instructor say causes an increased respiratory rate?

Increased stimulation of the respiratory center

Decreased stimulation of the respiratory center

Increased O2

Decreased pH

Ans:

A Feedback: Respiration, or the act of breathing to allow gas exchange, is controlled by the central nervous system. The inspiratory musclesdiaphragm, external intercostal muscles, and abdominal musclesare stimulated to contract by the respiratory center in the medulla. The medulla receives input from chemoreceptors (neuroreceptors sensitive to carbon dioxide and acid levels) to increase the rate and/or depth of respiration to maintain homeostasis in the body.

13.

A student asks the pharmacy instructor where air exchange takes place in the human body. What would be the instructor’s best response?

Air exchange in the human body takes place in the trachea.

Air exchange in the human body takes place in the bronchioles.

Air exchange in the human body takes place in the alveoli.

Air exchange in the human body takes place in the nares.

Ans:

C Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

870

Gas exchange occurs across the respiratory membrane in the alveolar sac. It does not occur in the bronchioles, the trachea, or the nares. 14.

The nursing instructor is discussing the need for lubrication of the alveoli for effective gas exchange and is produced by type II cells of the alveoli. The students know that what substance is produced by type II cells of the alveoli?

Erythrocytes

Lymphatic fluid

Surfactant

Pleural fluid

Ans:

C Feedback: Type II cells produce surfactant. Erythrocytes are made in the bone marrow. Lymphatic fluid is produced by lymph glands; pleural fluid is secreted by cells in the pleural cavity.

15.

While discussing gas exchange, the instructor would tell the students that oxygen and carbon dioxide enter and leave the body by what method?

Osmosis

Diffusion

Passive transport

Active transport

Ans:

B Feedback: The alveolar sac holds the gas, allowing needed oxygen to diffuse across the respiratory membrane into the the capillary, whereas carbon dioxide, which is more abundant in the capillary blood, diffuses across the membrane and enters the alveolar sac to be expired.

16.

The nursing instructor is discussing the oxygenation process and explains unoxygenated blood is received from the right ventricle by the alveoli. The delivery of this blood is referred to as what? Perfusion

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Oxygenation

Expiration

Inhalation

Ans:

871

Feedback: The lung tissue receives its blood supply from the bronchial artery, which branches directly off the aorta. The alveoli receive unoxygenated blood from the right ventricle via the pulmonary artery. The delivery of this blood to the alveoli is referred to as pulmonary perfusion. Oxygenation is the process where unoxygenated blood receives oxygen in the lungs. Expiration is the act of exhaling to rid the body of excess carbon dioxide. Inhalation is the act of inhaling or taking in air to replace oxygen from the air. 17.

The nursing instructor is discussing acute respiratory distress syndrome (ARDS) with her clinical group. What signs and symptoms would the instructor present to the students as characteristic of ARDS?

Anoxia

Hypocapnia

Hypoxia

Hypercapnia

Ans:

C Feedback: Acute respiratory distress syndrome (ARDS) is characterized by progressive loss of lung compliance and increasing hypoxia. Anoxia is a lack of oxygen to the body. ARDS will cause decreased oxygen (hypoxia). ARDS does not cause hypocapnia or hypercapnia, which is too little or too much carbon dioxide, respectively.

18.

While assessing a new patient on the unit, the nurse notes the following: productive cough, respiratory rate of 22, oxygen saturation of 90%, and increased secretions. The patient has a 20-year history of smoking 1.5 packs of cigarettes daily. What chronic condition might this patient have?

Pneumonia

Cystic fibrosis

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Pleural effusion

Chronic obstructive pulmonary disease (COPD)

Ans:

872

Feedback: Chronic obstructive pulmonary disease (COPD) is a permanent, chronic obstruction of airways, often related to cigarette smoking. It is caused by two related disorders, emphysema and chronic bronchitis, both of which result in airflow obstruction on expiration, as well as overinflation of the lungs and poor gas exchange. Emphysema is characterized by loss of the elastic tissue of the lungs, destruction of alveolar walls, and a resultant alveolar hyperinflation with a tendency to collapse with expiration. Chronic bronchitis is a permanent inflammation of the airways with mucus secretion, edema, and poor inflammatory defenses. Characteristics of both disorders often are present in the person with COPD. Pneumonia and pleural effusion are not chronic conditions. Cystic fibrosis is a genetic disease of excessive pulmonary tract secretions and GI tract involvement. 19.

A patient is admitted with an asthma attack caused by an allergic reaction to a medication. The nurse is aware that this severe allergic response is triggered by the immediate release of what?

Antihistamine

Histamine

Epinephrine

Surfactant

Ans:

B Feedback: Asthma is characterized by reversible bronchospasm, inflammation, and hyperactive airways. The hyperactivity is triggered by allergens or nonallergic inhaled irritants or by factors such as exercise and emotions. The trigger causes an immediate release of histamine, which results in bronchospasm in about 10 minutes. An antihistamine is used to treat allergic responses because it counteracts the effects of histamine. Surfactant is a lubricating substance that is necessary to keep the alveoli open. Epinephrine is a medication used to treat acute allergic responses.

20.

A nurse is discussing cystic fibrosis (CF) with a couple who have just given birth to an infant with this disorder. The nurse explains that the respiratory component of this disease is caused by what?

Bronchospasm

Infection

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Excessive respiratory tract secretions

Chemical irritation of the respiratory tract

Ans:

873

Feedback: CF is a hereditary disease involving the exocrine glands of the respiratory, gastrointestinal, and reproductive tracts. CF results in the accumulation of copious amounts of very thick secretions in the lungs. CF is not caused by bronchospasm or chemical irritation. Patients with cystic fibrosis develop many lung infections but that is secondary to the disease, not the underlying disease process itself. 21.

A patient presents to the clinic with a temperature of 101.5°F; malaise, myalgia, arthralgia, and a purulent, productive cough. The patient states The fever just started today but I have had this cough for many, many months. What would the nurse suspect the patient has?

Acute pneumonia

Bronchitis

Chronic obstructive pulmonary disease (COPD)

Bronchiectasis

Ans:

D Feedback: Bronchiectasis is a chronic disease that involves the bronchi and bronchioles. It is characterized by dilation of the bronchial tree and chronic infection and inflammation of the bronchial passages. With chronic inflammation, the bronchial epithelial cells are replaced by a fibrous scar tissue. The loss of the protective mucus and ciliary movement of the epithelial cell membranes, combined with the dilation of the bronchial tree, leads to chronic infections in the now unprotected lower areas of lung tissue. Patients with bronchiectasis often have an underlying medical condition that makes them more susceptible to infections (e.g., immune suppression, acquired immune deficiency syndrome, chronic inflammatory conditions). Patients present with the signs and symptoms of acute infection, including fever, malaise, myalgia, arthralgia, and a purulent, productive cough. Patients who have pneumonia and bronchitis may present with the above symptoms, but it is not a chronic disorder. COPD is a chronic disorder but the patient with this disorder has more symptoms related to shortness of breath.

22.

A nurse in the postanesthesia care unit is caring for a 77-year-old male patient after hip replacement surgery. While assessing the patient, the nurse notes crackles, dyspnea, cough, and changes in movement of the chest wall. The nurse would suspect the patient has developed what? Pneumonia

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Atelectasis

Bronchitis

Emphysema

Ans:

874

Feedback: Patients may present with crackles, dyspnea, fever, cough, hypoxia, and changes in chest wall movement. Treatment may involve clearing the airways, delivering oxygen, and assisting ventilation. In the case of pneumothorax, treatment would also involve insertion of a chest tube to restore the negative pressure to the space between the pleura. These signs and symptoms are not the presentation of pneumonia, bronchitis, or emphysema. 23.

A patient returns to the unit after thoracic surgery with a water-sealed chest drainage system. What should the nurse instruct the patient and the family that this drainage system is used for?

Maintaining positive chest wall pressure

Monitoring pleural fluid

Providing positive intrathoracic pressure

Re-expanding the lung and restoring the negative pressure to the space between the pleura

Ans:

D Feedback: In the case of a pneumothorax, treatment would involve insertion of a chest tube to restore the negative pressure to the space between the pleura. A water-sealed chest drainage system does not maintain positive chest wall pressure, monitor pleural fluid, or provide positive intrathoracic pressure.

24.

The clinic nurse is caring for a patient who has just been diagnosed with chronic obstructive pulmonary disease (COPD). The patient asks the nurse what they could have done to minimize the risk of contracting this disease. What would be the nurse’s best answer?

The most important risk factor for COPD is inadequate nutrition.

The most important risk factor for COPD is regular exercise.

The most important risk factor for COPD is exposure to dust and pollen.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The most important risk factor for COPD is cigarette smoking.

Ans:

875

Feedback: COPD is a permanent, chronic obstruction of airways, often related to cigarette smoking. Inadequate nutrition, regular exercise, and exposure to dust and pollen are not risk factors for COPD. 25.

The pediatric nurse practitioner is caring for a child who is diagnosed with cystic fibrosis (CF). The parents ask what the treatment is for because CF is considered a terminal illness. What would be the nurse’s best response?

Treatment is aimed at maintaining airway patency as much as possible.

Treatment is aimed at lowering high levels of carbon dioxide in the blood.

Treatment is aimed at raising oxygen levels to the extremities.

Treatment is aimed at maintaining the child until lung transplantation can occur.

Ans:

A Feedback: Treatment is aimed at keeping the secretions fluid and moving and maintaining airway patency as much as possible. Treatment for CF is not aimed at lowering hypercapnia or raising oxygen levels to the extremities. Treatment for CF is not aimed at maintaining the child until lung transplantation can occur.

26.

The nurse is caring for a 6-year-old patient with cystic fibrosis. The parents ask how the cystic fibrosis started. The nurse explains that the key feature in the presentation of cystic fibrosis includes what?

Airway obstruction

Obstructed bowel

Sweet-tasting sweat

Clubbing of the extremities

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

876

CF results in the accumulation of copious amounts of very thick secretions in the lungs. Eventually, the secretions obstruct the airways, leading to destruction of the lung tissue. Parents will often comment that their child tastes salty, not sweet. Newborns with CF often present with meconium ileus but not a bowel obstruction. Clubbing of the extremities occurs after many years of inadequate oxygenation. 27.

A patient arrives in the emergency room with an attack of acute bronchiectasis. The nurse knows that the principal pathologic finding in the diagnosis of bronchiectasis includes what?

Increase in the red blood cell concentration in the blood

Leakage of fluid into the alveolar interstitial spaces

Chronic, irreversible dilation of the bronchi and bronchioles

Obstruction of the pulmonary vasculature by a clot

Ans:

C Feedback: Bronchiectasis is a chronic disease that involves the bronchi and bronchioles. It is characterized by dilation of the bronchial tree, chronic infection, and inflammation of the bronchial passages. It is not caused by increased red blood cell concentration in the blood, leakage of fluid into the alveolar interstitial spaces, or the obstruction of the pulmonary vasculature by a clot.

28.

The nurse is developing the teaching portion of a care plan for a patient with asthma. What would be an important component for the nurse to emphasize?

Smoking a half a pack of cigarettes weekly is allowable.

Chronic inhalation of nonallergic inhaled irritants can trigger an attack.

Minor respiratory infections are not treated.

Activities of daily living (ADLs) should be completed in the waking hours.

Ans:

B Feedback: Asthma is characterized by reversible bronchospasm, inflammation, and hyperactive airways. The hyperactivity is triggered by allergens or nonallergic inhaled irritants or by factors such as exercise and emotions. The trigger causes an immediate release of histamine, which results in bronchospasm in about 10 minutes. The later response (i.e., 3 to 5 hours) is cytokine-mediated inflammation, mucus production, and edema contributing to obstruction. Patients with asthma should not smoke at all and even minor respiratory infections should be treated to prevent an exacerbation of asthma and ADLs should be completed whenever the patient feels able.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

29.

877

A nurse is caring for a patient with chronic bronchiectasis. The nurse should assess the patient for what clinical manifestations?

Purulent cough

Angina

Pigeon chest

Pulmonary hypertension

Ans:

A Feedback: Patients present with the signs and symptoms of acute infection, including fever, malaise, myalgia, arthralgia, and a purulent, productive cough. A patient with bronchiectasis would not present with pulmonary hypertension, chest deformity, or chest pain related to lack of oxygen to the heart.

30.

The nursing instructor is discussing cystic fibrosis (CF) with his clinical group. What would the instructor cite as the hallmark pathology of CF?

Alveolar mucous plugging, infection, and eventual bronchiectasis

Bronchial mucous plugging, inflammation, and tissue damage

Atelectasis, infection, and eventual chronic obstructive pulmonary disease (COPD)

Bronchial mucous plugging, infection, and eventual chronic obstructive pulmonary disease (COPD)

Ans:

B Feedback: CF results in the accumulation of copious amounts of very thick secretions in the lungs. Eventually, the secretions obstruct the airways, leading to destruction of the lung tissue. Mucous plugs occur in CF, but it is at the bronchial level, not the alveolar level. COPD is not an eventual outcome in this disease.

31.

The nurse is aware that patients with bronchiectasis often have an underlying medical condition that increases the chance for infection. What are some of these medical conditions? (Select all that apply.) Rheumatoid arthritis

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

AIDS

Diabetes mellitus

Hydrocephalus

Organ transplant patient

Ans:

A, B, E

878

Feedback: Patients with bronchiectasis often have an underlying medical condition that makes them more susceptible to infections. These underlying medical conditions include immune suppression, which would include patients who have had organ transplants and are receiving antirejection medication. Other conditions include acquired immune deficiency syndrome (AIDS) and chronic inflammatory conditions, such as rheumatoid arthritis. Diabetes mellitus and hydrocephalus do not fit into these categories. 32.

The nurse is admitting a patient with an obstructive respiratory disorder. The nurse knows this includes which disorders? (Select all that apply.)

Atelectasis

Cystic fibrosis

Asthma

Pneumonia

Bronchiectasis

Ans:

B, C Feedback: Obstructive disorders of the lower respiratory tract include asthma, chronic obstructive pulmonary disease (COPD), cystic fibrosis, and respiratory distress syndrome (RDS). Atelectasis is a collapse of once-expanded alveoli. Pneumonia is an infection of the lower respiratory tract. Bronchiectasis is a disorder of chronic infection and inflammation of the bronchial passages.

33.

The nurse is caring for a patient who has just been admitted with atelectasis and anticipates which possible treatments for this patient? (Select all that apply.) Chest tube

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Surgical removal of the affected lung

Oxygen delivery

Assisted ventilation

Antianxiety medication

Ans:

A, B, D

879

Feedback: Treatments for atelectasis include airway clearance (e.g., postural drainage and suctioning), oxygen delivery, and assisting ventilation. Patients with atelectasis may feel some anxiety if the patient’s oxygen level has lowered, but it is not a treatment for atelectasis. Removal of the portion of the lung that is affected is not an effective treatment. 34.

The nurse is caring for a patient with pneumonia. The nurse would expect to see which symptoms? (Select all that apply.)

Difficulty breathing

Urinary retention

Rash

Fever

Oxygen saturation of 88%

Ans:

A, D, E Feedback: Symptoms of patients with pneumonia include fever, difficulty breathing, fatigue, noisy breath sounds, and poor oxygenation. Urinary retention and rash are not usual symptoms of pneumonia.

35.

A nursing instructor is discussing ways that the respiratory tract protects itself from bacteria and shares with the students that it is done in which ways? (Select all that apply.)

Cough and sneeze reflex

Surfactant in the alveoli

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Goblet cells

Gas exchange in the alveoli

Nasal cilia

Ans:

A, C, E

880

Feedback: Nasal hairs, mucus-producing goblet cells, cilia, the superficial blood supply of the upper respiratory tract, and the cough and sneeze reflexes all work to keep foreign substances from entering the lower respiratory tract. Surfactant and gas exchange in the alveoli are involved in the oxygenation process but are not involved in protecting the respiratory tract. 36.

The nurse is teaching a class about common upper respiratory infections to parents of preschoolers. The parents correctly respond that which are examples of upper respiratory infections? (Select all that apply.)

Bronchitis

Asthma

Pharyngitis

Sinusitis

Laryngitis

Ans:

C, D, E Feedback: Upper respiratory infections include pharyngitis, sinusitis, and laryngitis. Asthma and bronchitis are examples of lower respiratory disorders.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

881

Chapter 54 - Drugs Acting on the Upper Respiratory Tract

A patient comes to the clinic with symptoms as seen in a cold. What group of upper respiratory drugs causes local vasoconstriction, which decreases blood flow and shrinks swollen membranes to improve air flow?

Antitussives

Decongestants

Expectorants

Mucolytics

Ans:

B Feedback: Decongestants cause local vasoconstriction that decreases blood flow to irritated and dilated capillaries of the mucous membranes lining the nasal passages and sinus cavities. This vasoconstriction leads to a shrinking of swollen membranes and opens clogged nasal passages promoting drainage of secretions and improved air flow. Antitussives either work directly on the medullary cough center of the brain or act as a local anesthetic on the respiratory passages blocking the effectiveness of the stretch receptors that stimulate a cough reflex. Expectorants liquefy lower respiratory tract secretions, reducing the viscosity of the secretions and so making it easier to cough them up. Mucolytics break down mucus to aid a person in coughing up thick tenacious secretions by separating cells that hold mucous material together.

What would be the nurse’s best response if a patient calls the clinic and reports that he has had a persistent cough for 2 weeks and asks the nurse for a recommendation for a cough medicine?

Look for dextromethorphan as an ingredient in any OTC cough preparation.

The doctor could order an antihistamine, which might dry up your secretions and stop the cough.

You should come to the clinic to be evaluated. A cough that lasts that long might be an indication of an underlying medical problem.

Drink a lot of fluids and take aspirin, which should reduce the irritation in your throat.

Ans:

C Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

882

A cough that has persisted for 2 weeks could be indicative of an underlying medical condition that should be addressed before treating the cough. The patient should be asked to come in for an evaluation. Dextromethorphan could help stop the cough, but suppressing the cough might not be in the patient’s best interest. Drying the mucosa with an antihistamine could aggravate the cough. Aspirin would not be indicated for relieving throat irritation. 3.

The nurse is caring for a patient who is receiving acetylcysteine (Mucomyst) by face mask. What would be an appropriate nursing diagnosis?

Impaired swallowing

Risk for impaired skin integrity

Risk for falls

Sleep deprivation

Ans:

B Feedback: A patient receiving acetylcysteine by face mask should have the residue wiped off the face mask and her face with plain water to prevent skin breakdown. The appropriate nursing diagnosis would be risk for impaired skin integrity. Acetylcysteine does not cause impaired swallowing, produce any CNS effects that could increase the risk for falls, or impair the patient’s ability to sleep.

A nurse is caring for a 15-year-old patient with cystic fibrosis who has been prescribed dornase alfa (Pulmozyme) to relieve the buildup of secretions and keep airways open and functioning longer. What will the nurse instruct the patient to do concerning the use of this drug?

Use in home nebulizer up to four times a day if needed.

Stop all other medications while using the drug.

Store the drug in the refrigerator, protected from light.

Expect a severe headache after each use.

Ans:

C Feedback: Patients using dornase alfa should be cautioned to store the drug in the refrigerator, protected from light. Heat and light can cause the drug to break down and can decrease its therapeutic value. The drug should only be used up to two times a day and the patient should continue all other medications while using it. Dornase alfa is only a palliative therapy that improves respiratory symptoms. A severe headache is not associated with this drug.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

883

A nurse in a three drops with respiratory problems has received orders for four patients. What medication order will the nurse question?

Tetrahydrozoline (Tyzine) three drops in each nostril for an 8-year-old child

Hydrocodone (Hycodan) 10 mg PO for a 5-year-old child

Pseudoephedrine (Dorcol) 15 mg PO for a 2-year-old child

Diphenhydramine (Benadryl) 5 mg/kg IM for a 10-year-old child

Ans:

B Feedback: The nurse should question the order for hydrocodone. The ordered dose, 10 mg, is an adult dose and should not be given to a 5-year-old. Patients from 2 to 12 years of age should be given between 1.25 and 5 mg/dose. The other medications are all correct dosages for the age of the child for whom they were prescribed.

Parents who treat their children’s cold and flu symptoms at home should be educated concerning the reading and understanding of over-the-counter (OTC) labels. Why is this statement true?

Many of these preparations contain the same active ingredients so that inadvertent overdose is a common problem.

Each product is best used for alleviating a particular symptom.

Some of these products do not contain any drugs.

Some of these products could interfere with breast-feeding.

Ans:

A Feedback: Parents need to be educated to read the labels of any OTC preparation they give their children. Many of these preparations contain the same ingredients and inadvertent overdose is a common problem. Giving a child a drug should not interfere with the mother’s milk production. All these products contain chemicals, which are drugs; many can be used to treat more than one symptom.

A patient presents at the clinic with a dry nonproductive cough. The patient is diagnosed with bronchitis and it has been determined that assistance is needed in thinning the sputum so the cough can become productive. What does the nurse expect the physician will prescribe?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Benzonatate (Tessalon)

Guaifenesin (Mucinex)

Dextromethorphan (Benylin)

Hydrocodone (Hycodan)

Ans:

884

Feedback: Because this patient needs to cough up respiratory secretions, he would likely be prescribed guaifenesin. This drug is an expectorant that liquefies lower respiratory secretions by reducing their viscosity and so making it easier for a patient to cough them up. Benzonatate, dextromethorphan, and hydrocodone are antitussives and are given to suppress the cough reflex. 8.

A patient presents at the clinic with signs and symptoms of seasonal allergic rhinitis. The patient is prescribed a nasal steroid to relieve symptoms. Two days later, the patient calls the clinic and tells the nurse that he is frustrated and wants a new drug. What is the most appropriate response by the nurse?

It may take up to 2 weeks to get the full clinical effect. Try to keep using the drug as ordered.

The drug must not work for you. Let’s change to an oral steroid.

You probably are administering the drug incorrectly. Come in and we can review the process.

You probably need to try a different nasal steroid. This one should be effective by now.

Ans:

A Feedback: Nasal steroids require about 2 weeks to reach their full clinical effect so the patient should be encouraged to use the drug for that length of time before changing drugs or giving up. The other responses could be appropriate if after 2 weeks the patient is still not getting relief.

A patient has an important presentation to make in 4 hours and he needs relief from the congestion of seasonal rhinitis. The patient calls the nurse, explains the situation, and tells the nurse that he cannot afford to be drowsy. Which antihistamine would be a good choice for this patient?

Diphenhydramine (Benadryl)

Dexchlorpheniramine (Polaramine)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Loratadine (Claritin)

Hydroxyzine (Atarax)

Ans:

885

Feedback: The first-generation antihistamines, including diphenhydramine, dexchlorpheniramine, and hydroxyzine, are associated with drowsiness. Loratadine is one of the second-generation antihistamines, which have fewer anticholinergic effects and are less likely to cause drowsiness. 10.

A 71-year-old man with a history of heart disease and diabetes has had an antihistamine prescribed. The nurse is concerned with this prescription because of the risk for what?

Cardiac arrhythmias

Increased salivation and choking

Severe constipation

Insomnia

Ans:

A Feedback: The patient has history of heart disease. Antihistamines have been associated with prolongation of the QT interval, which can lead to potentially fatal cardiac arrhythmias. Antihistamines dry the mucosa and are not associated with increased salivation or choking, can cause drowsiness, and are not associated with insomnia or severe constipation.

11.

A 29-year-old female patient has sinusitis, so the physician orders a topical nasal decongestant. What instructions should be given?

Avoid becoming pregnant during decongestant therapy.

Increase fluids to 2 L/d.

Restrict fluids to 500 mL/d.

Take the medication with meals.

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

886

Feedback: Institute other measures to help relieve the discomfort of congestion (e.g., humidity, increased fluid intake, cool environment, avoidance of smoke-filled areas) as appropriate. The medication does not need to be taken with meals or to restrict fluids. It would be inappropriate to tell the patient to avoid becoming pregnant. 12.

What statement by a 61-year-old patient who is to take an antitussive with codeine indicates that the nurse’s teaching has been effective?

I will take this medication anytime I start to cough.

This medication may make me anxious and nervous.

I should call the physician if I develop nausea, diarrhea, or stomach cramps while taking this medication.

This medication can cause drowsiness, so I will avoid driving or using power equipment while I take it.

Ans:

D Feedback: Codeine is a CNS depressant and should not be combined with driving or heavy machinery activities. Antitussives are not intended to be taken with every coughing episode because the patient may overdose on the medication. The medication usually makes the patient drowsy rather than nervous and anxious. Codeine may cause GI upset, although it is usually constipating; some patients may complain of nausea and stomach distress while taking this medication.

13.

What statement by the patient leads the nurse to believe that he needs additional instruction regarding his nasal decongestant?

I will blow my nose before instilling the nasal spray.

I will report any dizziness, drowsiness, or rapid pulse.

I will drink 2,000 to 3,000 mL of fluid daily.

I will use it only when I have nasal discharge.

Ans:

D Feedback: Decongestants decrease overproduction of secretions by causing local vasoconstriction to the upper

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

887

respiratory tract (See Table 54.2). This vasoconstriction leads to a shrinking of swollen mucous membranes and tends to open clogged nasal passages, providing relief from the discomfort of a blocked nose and promoting drainage of secretions and improved airflow. The patient must understand proper administration, which includes clearing the nasal passages before inhaling the medication and increasing fluid intake and reporting adverse effects. The medication must be used on a regular basis to be effective. Option B is a distracter. 14.

The nurse is giving discharge instructions to a patient with an upper respiratory infection who has been advised to take an over-the-counter (OTC) topical nasal decongestant. The nurse advises the patient about what common adverse reaction to these medications?

Diarrhea

Rhinitis medicamentosa

Rash

Headache

Ans:

B Feedback: An adverse effect that accompanies frequent or prolonged use of topical nasal decongestants is rebound congestion, technically called rhinitis medicamentosa. Other adverse reactions include disorientation, confusion, nausea, vomiting, fever, and dyspnea. Diarrhea, rash, and headache are not commonly associated with these drugs, however.

15.

The nurse is caring for a patient who is taking dextromethorphan for cough suppression. The nurse will assess this patient for hypotension if he also takes which other medication?

Calcium-channel blockers

Monoamine oxidase (MAO) inhibitors

Beta-blockers

Thiazide diuretics

Ans:

B Feedback: Dextromethorphan should not be used in conjunction with MAO inhibitors because hypotension, fever, nausea, myoclonic jerks, and coma could occur. No known drugdrug interaction exists between dextromethorphan and calcium-channel blockers, beta-blockers, and thiazide diuretics.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

16.

888

The nurse is giving discharge instructions to the mother of a 3-month-old infant who has an upper respiratory tract infection and has been prescribed a pseudoephedrine nasal solution. What instructions are most important for the nurse to give to this mother?

Instill the medication 20 to 30 minutes before feeding.

Keep the baby on clear liquids until the nasal discharge has resolved.

Start the baby on cereal, because she is having difficulty sucking right now.

Give the medication immediately after feeding.

Ans:

A Feedback: Oral decongestants are drugs that are taken by mouth to decrease nasal congestion related to the common cold, sinusitis, and allergic rhinitis. They are also used to relieve the pain and congestion of otitis media. Opening of the nasal passage allows better drainage of the Eustachian tube, relieving pressure in the middle ear. It should be given prior to a feeding so that infant is able to suck more effectively.

17.

The nurse is caring for a patient who does not have a respiratory disorder but has been prescribed acetylcysteine. What is an additional indication for acetylcysteine (Mucomyst)?

Conversion of cardiac dysrhythmias

Treatment of peptic ulcer disease

Antidote for acetaminophen poisoning

Decreased bronchospasm

Ans:

C Feedback: Acetylcysteine is used orally to protect liver cells from being damaged during episodes of acetaminophen toxicity because it normalizes hepatic glutathione levels and binds with a reactive hepatotoxic metabolite of acetaminophen. Acetylcysteine is not used for the conversion of cardiac dysrhythmias, for treatment of peptic ulcer disease, or for decreasing bronchospasm.

18.

The nursing instructor is teaching the lab students the best position for the administration of nasal sprays. What position would the instructor teach the students?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Supine

Semi-Fowler’s

High Fowler’s

Side-lying

Ans:

889

Feedback: Teach the patient to sit upright and press a finger over one nostril to close it. This body position is important to prevent excessive amounts of the medication running down the back of the throat. It needs to be in direct contact with the greatest amount of nasal mucosa and the high Fowler’s position provides that. 19.

The nurse advises that patient to avoid long-term use of nasal decongestants because it may lead to what condition?

Mucosal ulcerations

Decreased drainage

Increased risk of infection

Asthma

Ans:

A Feedback: Adverse effects associated with topical decongestants include local stinging and burning, which may occur the first few times the drug is used. If the sensation does not resolve, the drug should be discontinued, because it may indicate lesions or erosion of the mucous membranes. Nasal decongestants do not cause asthma or increased risk of infection. These medications do not decrease drainage from the nose as they shrink the nasal mucosa.

20.

What disorders would the pharmacology instructor tell the nursing students may be exacerbated by the use of nasal decongestants?

Pneumonia

Rheumatoid arthritis

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Acid reflux

Hypothyroidism

Ans:

890

Feedback: Assess for possible contraindications or cautions; any history of allergy to the drug or a component of the drug vehicle; glaucoma, hypertension, diabetes, thyroid disease, coronary disease, and prostate problems, all of which could be exacerbated by the sympathomimetic effects. Nasal decongestants do not appear to exacerbate pneumonia, rheumatoid arthritis, or acid reflux. 21.

The pharmacology instructor questions the students as to which classification of drugs is commonly found in over-the-counter (OTC) combination cold medications?

Stimulants

Opioids

Oral decongestants

Antitussives

Ans:

C Feedback: Oral decongestants are found in many OTC cold and flu preparations so that care must be taken to avoid inadvertent overdose when more than one such drug is used. Opioids are only available by prescription; stimulants and antitussives are not generally found in OTC combination cold medications.

22.

A patient visits the clinic and is diagnosed with acute sinusitis. To promote sinus drainage, what medication might be ordered?

Topical nasal steroid decongestants

First-generation antihistamines

Second-generation antihistamines

Topical decongestants

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

891

Feedback: Topical decongestants are sympathomimetics, meaning that they imitate the effects of the sympathetic nervous system to cause vasoconstriction, leading to decreased edema and reduced inflammation of the nasal membranes. They are available as nasal sprays that are used to relieve the discomfort of nasal congestion that accompanies the common cold, sinusitis, and allergic rhinitis. Topical nasal steroid decongestants are used for the treatment of allergic rhinitis and to relieve inflammation after the removal of nasal polyps. First- and second-generation antihistamines are not ordered for sinusitis. 23.

The nurse is caring for a patient who needs education on his medication therapy for allergic rhinitis. The patient is to take clemastine (Tavist) daily. In providing educational interventions regarding this medication, what is the most important instruction on the action of the medication?

It blocks the effects of histamine.

It is used to treat atrial and ventricular dysrhythmias.

It competitively inhibits the rate-limiting enzyme in the liver.

It leads to bronchodilation and relaxes smooth muscle in the bronchi.

Ans:

A Feedback: Clemastine blocks the effects of histamine at the histamine-1 receptor sites, decreasing the allergic response. It is prescribed to treat allergic rhinitis. Antiarrhythmic medications are used to treat atrial and ventricular dysrhythmias. Beta-hydroxy-beta-methylglutaryl coenzyme A reductase inhibitors are used to lower blood cholesterol by competitively inhibiting the rate-limiting enzyme in the liver. Betaadrenergic agents lead to bronchodilation and stimulate beta2-adrenergic receptors in the smooth muscle of the bronchi and bronchioles.

24.

The nursing instructor is discussing the administration of nasal spray with the nursing students. What information is most important to include in this discussion?

Finish the bottle of nasal spray to clear the infection effectively.

Nasal spray can be shared between family members only.

Administer the nasal spray in a prone position.

Overuse of nasal spray may cause rebound congestion.

Ans:

D Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

892

An adverse effect that accompanies frequent or prolonged use of decongestants is rebound vasodilation, clinically called rhinitis medicamentosa. The reflex reaction to vasoconstriction is a rebound vasodilation, which often leads to prolonged overuse of decongestants. The patient should hold his or her head back for maximum distribution of the spray. Only an individual patient should use the bottle of medication. 25.

The clinic nurse is caring for a patient who has been prescribed fexofenadine for hay fever. When the nurse is assessing this patient’s medication history, what drug would make the nurse question the order for fexofenadine?

Tetracycline

Penicillin

Gentamicin

Ketoconazole

Ans:

D Feedback: Drugdrug interactions vary among antihistamines. For example, anticholinergic effects may be prolonged if diphenhydramine is taken with a monoamine inhibitor and the interaction of fexofenadine with ketoconazole or erythromycin may raise fexofenadine concentrations to toxic levels. This is not a concern with tetracycline, penicillin, or gentamicin.

26.

A student nurse is doing research consisting of chart audits of 25 patients with diagnosed chronic pharyngitis; she is attempting to determine what medication has been prescribed most frequently. What type of medication would this nurse expect to find in most of the chart audits?

Antitussives

Nasal sprays

Oral decongestants

Mucolytics

Ans:

A Feedback: Antitussives are drugs that suppress the cough reflex. Many disorders involving the respiratory tract, including the common cold, sinusitis, pharyngitis, and pneumonia are accompanied by an uncomfortable, nonproductive cough. Persistent coughing can be exhausting and can cause muscle

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

893

strain and further irritation of the respiratory tract. Nasal sprays, oral decongestants, and mucolytics are not generally prescribed for chronic pharyngitis, however. 27.

The nurse is teaching a group of patients with allergic rhinitis about the use of their medications. What would be the most essential information to give these patients about preventing possible drug interactions?

Over-the-counter (OTC) medications are safe to use.

Use only one pharmacy so the pharmacist can check drug interactions.

Read drug labels before taking OTC medications.

Ask the pharmacy tech for assistance in selecting an OTC medication.

Ans:

C Feedback: Teach patients to read the OTC labels to avoid inadvertent overdose. It would be inappropriate to teach the patient to use only one pharmacy for OTC medications. OTC medications are generally safe to use if used correctly. Asking the pharmacy tech for help in selecting an OTC medication is appropriate but not the most essential information to give the patients.

28.

A patient has been prescribed a nasal steroid and asks the nurse what the most common reason that this medication is used to treat. What is the nurse’s best response?

Nasal steroids are only used to treat a sinus infection.

Nasal steroids are used to treat allergic rhinitis.

Nasal steroids are used for an infection in the adenoids.

Nasal steroids are used for all acute upper respiratory infections.

Ans:

B Feedback: Because nasal steroids block the inflammatory response, their use is contraindicated in the presence of acute infections. The most common reason they are prescribed is for the treatment of allergic rhinitis or to relieve inflammation after the removal of nasal polyps. Nasal steroids are not used for a sinus infection, an infection in the adenoids, or any other acute upper respiratory infection.

29.

The nurse is writing a care plan for a patient who has been prescribed a nasal steroid. What would be an appropriate nursing diagnosis for this patient?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Disturbed sensory perception (kinesthetic) related to CNS effects

Risk for injury related to suppression of inflammatory reaction

Ineffective airway clearance related to bronchospasm

Ineffective airway related to nasal obstruction

Ans:

894

Feedback: Nursing diagnoses related to drug therapy might include acute pain related to local effects of the drug, risk for injury related to suppression of inflammatory reaction, and deficient knowledge regarding drug therapy. Nursing diagnosis for this patient does not include disturbed sensory perception, ineffective airway clearance, or ineffective airway. 30.

The family nurse practitioner is caring for a Hispanic woman who is 83 years old. The patient has been noncompliant with the care regimen the nurse practitioner has previously outlined for treatment of sinusitis. What should the nurse practitioner do that can assist the patient in being more compliant with the prescribed treatment regimen?

Provide instructions in writing.

Provide the instructions in large type.

Give the treatment instructions to a member of her family.

Give the treatment instructions to the woman’s husband.

Ans:

A Feedback: The nurse instructs the patient about signs and symptoms that require follow-up and provides these instructions verbally and in writing. Instructions in alternate formats (e.g., large type, patient’s language) may be needed to increase the patient’s understanding and adherence to the treatment plan. Option B is incorrect because the situation does not indicate that the woman cannot read regular-sized type print. Options C and D are incorrect because the situation does not indicate that any family members accompanied the patient to see the family nurse practitioner.

31.

The nurse is caring for a patient with cystic fibrosis who is receiving dornase alfa by nebulizer to help thin secretions. What statement by the patient indicates a need for further instruction? This medication will loosen up the sticky mucus that is in my lungs.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

I will try to cough after I receive this medication.

I’m glad that this medication will solve all of my problems.

I will continue to use postural drainage and take my enzymes as ordered.

Ans:

895

Feedback: Cystic fibrosis patients who receive dornase alfa should be cautioned about the need to continue all therapies for their cystic fibrosis because dornase alfa is only a palliative therapy that improves respiratory symptoms, and other therapies, such as coughing, postural drainage and enzymes, are still needed. 32.

The nurse is caring for a patient who is scheduled to receive acetylcysteine because of an acetaminophen overdose. The nurse would notify the physician before administering the medication if the patient had which condition? (Select all that apply.)

Bronchospasm

Hypertension

Nephrotic syndrome

Peptic ulcer

Esophageal varices

Ans:

A, D, E Feedback: Before administration, assess for possible contraindications or cautions: any history or allergy to the prescribed drugs and the presence of bronchospasm, which are contraindications to the use of these drugs, as well as findings of peptic ulcer and esophageal varices, which would require careful monitoring and cautious use. Options B and C are not correct.

33.

A patient has been using guaifenesin for a cough that accompanied a common cold. The patient calls the nurse help line and states that she thinks she is having an adverse reaction to the medication. The nurse knows that which symptoms are adverse effects of this medication? (Select all that apply.)

Nausea

Rash

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Constipation

Bleeding

Headache

Ans:

A, B, E

896

Feedback: Adverse effects of guaifenesin are nausea, vomiting, headache, dizziness, and rash. Constipation and bleeding are not adverse effects of guaifenesin. 34.

A patient has been prescribed an antihistamine for treatment of allergic rhinitis. What statements by the patient indicate an understanding of this medication? (Select all that apply.)

This medication will work best if I take it before I eat anything.

I need to drink less fluid while I take this medication to help reduce the amount of mucus I have.

I will use sugarless candies to help with the feelings of a dry mouth.

I will use a humidifier in the bedroom while I sleep.

This medication will probably cause my appetite to increase.

Ans:

A, C, D Feedback: Antihistamines should be taken on an empty stomach and the patient should force fluids, not drink less fluids. The patient may use sugarless candy to help with dry mouth and should increase room humidity. The patient may experience nausea or anorexia but not increased hunger. Options B and E are not correct.

35.

An individual calls the nurse help line and asks what the drug diphenhydramine is used for. The nurse knows that the medication is prescribed for which conditions? (Select all that apply.)

Urticaria

Vasomotor rhinitis

Productive cough

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Motion sickness

Angioedema

Ans:

A, B, D, E

897

Feedback: Diphenhydramine is used for the symptomatic relief of perennial and seasonal rhinitis, vasomotor rhinitis, allergic conjunctivitis, urticaria, and angioedema; it is also used for treating motion sickness and parkinsonism, as a nighttime sleep aid, and to suppress cough. It would not be used to treat a productive cough, because it is not an expectorant.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

898

Chapter 55 - Drugs Acting on the Lower Respiratory Tract

A 70-year-old man is being treated for chronic obstructive pulmonary disease (COPD) with theophylline (Theo-Dur). What will be a priority assessment by the nurse?

Ingestion of fatty foods

Weight

Activity level

Use of nicotine

Ans:

D Feedback: Nutritional status, weight, and activity level would be important for a nurse to know about a COPD patient. However, it would be most important for the nurse to know whether the patient smokes or uses tobacco in other ways or smoking cessation methods that involve nicotine. Nicotine increases the metabolism of theophyllines; the dosage may need to be increased to produce a therapeutic effect.

A 6-year-old child weighing 52 pounds has had a loading dose of aminophylline (Truphylline). The nurse is ready to administer the regular prescribed dose of 4 mg/kg every 4 hours for three doses. How many milligram will the patient receive in 12 hours?

44 mg

94 mg

284 mg

344 mg

Ans:

C Feedback: First, using the formula: 2.2 pounds and 52 pounds: times kg, determine the child’s weight in kg (52/2.2 = 23.64). Next, using the formula of amount of drug prescribed times weight in kg, determine the amount the child will receive in one dose (4 times 23.64 = 94.56). To determine the mg in a 12-hour period multiply 94.56 times 3 = 283.68. Round to 284 mg. Options A, B, and D are not correct.

A patient is in the clinic to have blood drawn to assess his or her theophylline level. The patient is

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

899

taking theophylline (Theo-Dur) and appears to being doing well on the drug. He or she reports no problems. What serum level will the nurse expect the patient to have? A)

Between 0.5 to 5 mcg/mL

Between 10 to 20 mcg/mL

Between 25 to 35 mcg/mL

Between 40 to 50 mcg/mL

Ans:

B Feedback: Therapeutic theophylline levels should be between 10 and 20 mcg/mL. A level between 0.5 and 5 mcg/mL would be low and would not produce a therapeutic effect. Levels between 25 and 50 mcg/mL would be too high and could cause serious adverse effects.

A patient presents to the emergency department (ED) having an acute asthma attack. An ED physician has ordered a sympathomimetic (epinephrine). The nurse expects what as the therapeutic effect of this drug?

Decrease the inflammatory response in the airways

Reduce the surface tension within the alveoli allowing for gas exchange

Inhibit the release of histamine and slow-reacting substance of anaphylaxis (SRSA) to prevent the allergic asthmatic response

Cause dilation of the bronchi with increased rate and depth of respiration

Ans:

D Feedback: Epinephrine will cause the bronchi to dilate and also cause the rate and depth of respiration to increase. Inhaled steroids decrease the inflammatory response and lung surfactants reduce the surface tension within the alveoli. Mast cell stabilizers inhibit the release of histamine and SRSA to prevent the allergic response. Options A, B, and C are not correct.

An inhaled sympathomimetic drug has been ordered for a teenage athlete who has exercise-induced asthma. What should the patient be instructed to do? Use the inhaler every day at the same time each day.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

900

Use the inhaler as soon as the symptoms start.

Use the inhaler 30 to 60 minutes before exercising to ensure peak therapeutic levels when needed.

Use the inhaler 2 to 3 hours before exercising to ensure peak effectiveness.

Ans:

C Feedback: Teaching a patient about using an inhaled sympathomimetic for management of exercise-induced asthma should include instructions to use the inhaler 30 to 60 minutes before exercising to ensure therapeutic levels when needed. The inhaler would not be used daily and waiting until symptoms occur will be too late for prevention. Options B and D are not correct.

A premature newborn is being treated for respiratory distress syndrome. The nurse teaches the parents about what adverse effect that can occur with the use of lung surfactants?

Kidney dysfunction

Cardiac arrhythmias

High fever

Collapsed lung

Ans:

D Feedback: Lung surfactants used therapeutically can cause many adverse effects including pneumothorax (collapsed lung), hypotension, pulmonary leak, hyperbilirubinemia, and sepsis. Other adverse effects may occur in the infant related to the degree of immaturity of the child’s system and may not be related to the drug therapy. Options A, B, and C are not correct.

A patient who has chronic bronchial asthma has had a mast cell stabilizer prescribed. What drug would the physician prescribe?

Ipratropium or budesonide

Isoetharine or montelukast

Nedocromil or cromolyn

Aminophylline or caffeine

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

901

C Feedback: Nedocromil and cromolyn are mast cell stabilizers used in the treatment of asthma. Aminophylline and caffeine are xanthines. Ipratropium is an anti-cholinergic drug and budesonide is a corticosteroid. Isoetharine is a sympathomimetic drug and montelukast is a leukotriene receptor antagonist.

A 76-year-old man with asthma is being treated with an anticholinergic. What will the nurse be careful to assess for?

Cardiac arrhythmias

Prostatic hypertrophy

Thyroid conditions

Parkinsonism

Ans:

B Feedback: Anticholinergics can produce urinary hesitancy and urinary retention, conditions that would aggravate the signs and symptoms of prostatic hypertrophy. Older patients given anti-cholinergics should be encouraged to empty the bladder before taking the drug. These drugs are used to treat parkinsonism. Thyroid conditions and cardiac arrhythmias are not cautions or contraindications to the use of these drugs.

A patient with chronic bronchial asthma is prescribed montelukast (Singulair). What will the nurse instruct the patient to avoid taking?

Aspirin

Penicillin

Sertraline (Zoloft)

Nifedipine (Procardia)

Ans:

A Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

902

The nurse would instruct the patient to avoid aspirin, which might cause an increased montelukast level and toxicity. The other options do not cause drugdrug interactions with montelukast. 10.

A patient presents at the emergency department in acute respiratory distress. A quick assessment by the triage nurse indicates that the patient experienced difficulty breathing immediately after taking Combivent for the first time. The nurse suspects that the patient may be allergic to what?

Aspirin

Penicillin

Peanuts

Ragweed pollen

Ans:

C Feedback: Combivent is a combination drug of ipratropium and albuterol. The propellant used to make ipratropium has a cross-sensitivity to the antigen that causes peanut allergies. Aspirin, penicillin, and ragweed pollen are not associated with this drug.

11.

The nurse has admitted a patient (who takes ipratropium) to the respiratory unit with an acute exacerbation of chronic obstructive pulmonary disease (COPD). While writing a plan of care for this patient, what would be the most appropriate nursing diagnosis to use?

Deficient knowledge regarding alternative therapy

Imbalanced nutrition: Less than body requirements

Acute pain related to renal effects of the drug

Disturbed thought processes related to central nervous system (CNS) effects

Ans:

B Feedback: Nursing diagnoses related to drug therapy might include acute pain related to CNS, gastrointestinal (GI), or respiratory effects of the drug; imbalanced nutrition: Less than body requirements, related to dry mouth and GI upset; and deficient knowledge regarding drug therapy. Options A, C, and D are not correct.

12.

A patient, diagnosed with asthma, has been prescribed tiotropium (Spiriva). What should the nurse teach the patient about this drug? (Select all that apply.)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

It makes you fatigued.

You need to stay out of direct sunlight.

It is an anticholinergic.

You only need to take it once a day.

It has a rapid onset of action and a long duration.

Ans:

C, D, E

903

Feedback: Tiotropium is the first drug approved for once-daily maintenance treatment of bronchospasm associated with chronic obstructive pulmonary disease (COPD). Patients who cannot tolerate the sympathetic effects of the sympathomimetics might respond to the anticholinergic drugs ipratropium (Atrovent) or tiotropium. Tiotropium has a rapid onset of action and a long duration, with a half-life of 5 to 6 days. Tiotropium is not associated with fatigue or photosensitivity. 13.

The nurse is providing health teaching to a newly diagnosed asthmatic patient. The patient has been prescribed theophylline. What is contraindicated with the use of this drug?

Using insulin

Taking anti-inflammatory drugs

Exercising

Smoking cigarettes

Ans:

D Feedback: Nicotine increases the metabolism of xanthines in the liver so that xanthine dosage must be increased in patients who continue to smoke while using xanthines. In addition, extreme caution must be used if the patient decides to decrease or discontinue smoking because severe xanthine toxicity can occur. Bronchoconstriction is not caused by using insulin and anti-inflammatory drugs do not cause bronchoconstriction. Exercise with a physician’s supervision is encouraged in individuals with asthma.

14. A)

What action by the patient would indicate that the patient understands how to use an inhaler? The patient inhales as soon as the inhaler enters his or her mouth.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The patient holds his or her breath for several seconds after releasing the medication.

The patient administers three doses of medication within a 1-minute time frame.

The patient exhales as soon as he or she compresses the inhaler.

Ans:

904

Feedback: Holding the breath prevents exhalation of medication still remaining in the mouth. The patient should inhale when the canister is compressed, not as soon as the inhaler enters his or her mouth. The patient should only administer one dose of medication at a time and the patient should wait to exhale until after the breath has been held as long as possible. 15.

A patient, newly diagnosed with chronic obstructive pulmonary disease (COPD), calls the clinic and asks the nurse to explain what the newly prescribed medications are for. What would be the most appropriate response by the nurse?

The medications that have been ordered for you are what the physician thinks will help you the most.

The medications that have been ordered for you are to help you breathe easier.

The medications that have been ordered for you are designed to work together to help you feel better.

The medications that have been ordered for you are to help relieve the inflammation and promote dilation of the bronchi.

Ans:

D Feedback: Drug treatment of asthma and COPD aims to relieve inflammation and promote bronchial dilation. The other options do not give the patient information about the use of these new medications.

16.

The nurse is caring for a patient who is taking an adrenergic bronchodilator. In what disease process should adrenergic bronchodilators be used cautiously?

Liver failure

Renal failure

Respiratory failure

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Heart failure

Ans:

905

Feedback: Adrenergic drugs cause cardiac stimulation. Patients with liver failure, renal failure, or respiratory failure do not need to use adrenergic bronchodilators cautiously. 17.

The patient is a 34-year-old man who recently started taking theophylline. The nurse knows that medication teaching has been successful when he agrees to what activity?

Avoiding caffeine

Eating foods high in potassium

Limiting fluid intake to 1,000 mL a day

Taking the medicine on an empty stomach

Ans:

A Feedback: Both theophylline and caffeine are xanthenes. Theophylline increases cardiac output and heart rate. Caffeine also stimulates heart rate. This can have an additive effect. Eating foods high in potassium, limiting fluid intake, or taking the medicine on an empty stomach are not indications that the patient has understood the nurse’s teaching.

18.

The nurse caring for a 38-year-old patient started on albuterol (Proventil) should advise the patient that he or she may experience what adverse effect?

Polydipsia

Tachycardia

Hypotension

Diarrhea

Ans:

B Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

906

Adrenergic agents stimulate beta1-adrenergic receptors in the heart as well as beta2-adrenergic receptors in the lungs. Adrenergic agents do not cause polydipsia, hypotension, or diarrhea. 19.

The nursing instructor is discussing bronchodilators with a group of nursing students. The students understand the instruction when they identify what drug is most effective in treating acute bronchospasm?

Ipratropium bromide (Atrovent)

Epinephrine (Adrenalin)

Cromolyn (Intal)

Ephedrine

Ans:

B Feedback: Epinephrine may be injected subcutaneously in an acute attack of bronchoconstriction, with therapeutic effects in 5 minutes that last 4 hours. It is considered the drug of choice for the treatment of acute bronchospasm. Ipratropium bromide has an onset of action of 15 minutes when inhaled with a duration of 3 to 4 hours. Cromolyn is not for use during acute times of bronchospasm but is used to help prevent bronchospasm. Ephedrine can be used in acute bronchospasm but epinephrine remains the drug of choice.

20.

A patient with chronic obstructive pulmonary disease (COPD) presents at the emergency department in acute respiratory distress. The patient’s family tells the nurse that the patient’s problems began right after the patient took his or her first dose of ipratropium (Atrovent). What would the nurse suspect is the problem?

An allergy to milk

Overexertion by the patient

Patient not taking the medications correctly

An allergy to soy products

Ans:

D Feedback: The use of ipratropium or tiotropium is contraindicated in the presence of known allergy to the drug or to soy products or peanuts (the vehicle used to make ipratropium an aerosol contains a protein associated with peanut allergies) to prevent hypersensitivity reactions. An allergy to milk is not

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

907

associated with sensitivity to ipratropium. Overexertion would not cause the patient to develop respiratory distress after using ipratropium for the first time. Misuse of the inhaler would not cause respiratory distress. 21.

The nurse has provided health teaching for a 15-year-old boy newly diagnosed with asthma. What statement, made by the patient, indicates that he has a good understanding of the teaching the nurse has done regarding inhalers?

I should hold my breath when administering a puff.

The aerosol canister should be shaken well before using.

I need to take three short quick breaths when I administer the inhaler.

A second aerosol medication cannot be administered until 30 minutes after the first aerosol medication.

Ans:

B Feedback: Inhalers should be shaken well, immediately before each use. It would not be appropriate to teach the patient to hold his breath when administering a puff, to take three short quick puffs when administering the inhaler, or that a second aerosol medication should not be administered until 30 minutes after the first dose of aerosol medication.

22.

The nurse is writing a plan of care for a patient newly admitted to the floor with an asthma attack that occurred while exercising. What would be the most appropriate intervention for this patient?

Assist patients with moderate to severe asthma in obtaining a home nebulizer unit

Try to prevent or reduce panic, which may initiate bronchospasm

Teach patient to use an inhaler before exercising

Monitor peak flow rates, especially in children

Ans:

C Feedback: Teach patient who use one of these drugs for exercise-induced asthma to use it 30 to 60 minutes before exercising to ensure peak therapeutic effects when they are needed. The most important intervention would be to use a bronchodilator as prophylaxis for a patient with exercise-induced asthma. It would not be monitoring peak flow rates, trying to prevent or reduce panic, or assisting patient in obtaining a home nebulizer unit.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

23.

908

A patient tells the nurse that a friend has recommended the use of caffeine to treat the patient’s asthma. The nurse counsels the patient to begin treatment immediately with the prescribed medication for what reason?

Caffeine can aggravate the drugs used to treat asthma.

Most natural products are less toxic or more potent than traditional asthma medications.

Natural products decrease the adverse effects associated with adrenergic bronchodilators.

Delays in appropriate treatment can have serious, even fatal, consequences.

Ans:

D Feedback: The xanthines, including caffeine and theophylline, come from a variety of naturally occurring sources. These drugs were formerly the main treatment choices for asthma and bronchospasm. However, because they have a relatively narrow margin of safety, and they interact with many other drugs, they are no longer considered the first-choice bronchodilators. Delays in appropriate treatment can have serious, even fatal, consequences. Natural products do not decrease the adverse effects associated with adrenergic bronchodilators. Natural products have not been proven to be less toxic or more potent than prescribed asthma medications. Caffeine does not aggravate drugs used to treat asthma, but it can have an additive effect.

24.

Epinephrine, formerly the drug of choice for acute attacks of bronchoconstriction, has been replaced by what?

Short-acting bronchodilators are the drug of choice in this situation.

Nothing has replaced epinephrine as drug of choice in this situation.

Self-administered metered-dose inhalers (MDIs)

Long-acting beta2-adrenergic agonists (LABAs)

Ans:

B Feedback: Epinephrine, the prototype drug, is the drug of choice in adults and children for the treatment of acute bronchospasm, including that caused by anaphylaxis; it is also available for inhalation therapy. Because epinephrine is associated with systemic sympathomimetic effects, it is not the drug of choice for patients with cardiac conditions. Options A, C, and D are not correct.

25.

A patient has an acute asthma attack. A bronchodilator is used to bring the exacerbation under control.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

909

What drug would be used to prevent acute bronchoconstriction? A)

Salbutamol (Ventolin)

Salmeterol (Serevent)

Fenoterol (Berotec)

Terbutaline (Bricanyl)

Ans:

B Feedback: Salmeterol (Serevent) and formoterol (Foradil) and are long-acting beta2-adrenergic agonists used only for prophylaxis of acute bronchoconstriction. Options A, C, and D are all short-acting beta2-adrenergic agonists and not used for prophylaxis.

26.

A patient is prescribed salmeterol with dosage on a 4 to 6 hour schedule for treatment of exerciseinduced asthma. What is the recommended dosing schedule of asthma experts regarding this drug?

30 minutes before exercise to prevent dyspnea during exercise

Every 15 minutes during exercise to prevent dyspnea

As needed to treat or prevent dyspnea during exercise

Every 1 to 2 hours to treat or prevent dyspnea during exercise

Ans:

A Feedback: Salmeterol (Serevent) adult and pediatric (12-year-old and older): two puffs every 12 hours; or two puffs 30 to 60 minutes before exercise. Therefore, options B, C, and D are incorrect.

27.

The pharmacology instructor is explaining the difference between bronchodilators and antiinflammatory drugs. How does an anti-inflammatory drug reduce bronchoconstriction?

Increases ability to metabolize medication

Decreases formation of mucus secretions

Increases reactivity to medication

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

By decreasing airway hyperreactivity to various stimuli

Ans:

910

Feedback: Bronchodilators, or antiasthmatics, are medications used to facilitate respirations by dilating the airways. They are helpful in symptomatic relief or prevention of bronchial asthma and for bronchospasm associated with chronic obstructive pulmonary disease (COPD). Reducing inflammation prevents and reduces bronchoconstriction by decreasing airway hyperreactivity to various stimuli that decreases mucosal edema and formation of mucus secretions that narrow airways. Anti-inflammatory drugs do not increase the ability to metabolize medication or increases reactivity to medication. 28.

Why are inhaled steroids used to treat asthma and chronic obstructive pulmonary disease (COPD)?

They act locally to decrease release of inflammatory mediators.

They act locally to improve mobilization of edema.

They act locally to increase histamine release.

They act locally to decrease histamine release.

Ans:

A Feedback: When administered into the lungs by inhalation, steroids decrease the effectiveness of the inflammatory cells. This has two effects, which are decreased swelling associated with inflammation and promotion of beta-adrenergic receptor activity, which may promote smooth muscle relaxation and inhibit bronchoconstriction. Options B, C, and D are incorrect.

29.

The nurse is caring for a patient with chronic obstructive pulmonary disease. The plan of care will focus on what patient problem?

Pain

Obstructed airway

Activity intolerance

Adverse effects of medication therapy

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

911

Feedback: Asthma, emphysema, chronic obstructive pulmonary disease (COPD), and respiratory distress syndrome (RDS) are pulmonary obstructive diseases. All but RDS involve obstruction of the major airways. RDS obstructs the alveoli. Pain, activity intolerance, and adverse effects of medication therapy are conditions identified to detect, manage, and minimize the unexpected outcomes the nurse should be especially aware of the potential for an obstructed airway in these patients. 30.

The clinic nurse is caring for a patient who has just been diagnosed with chronic obstructive pulmonary disease (COPD). The patient asks the nurse what COPD means. What would be the nurse’s best response?

It is an umbrella term for diseases like acute bronchitis.

It means that the lungs have been damaged in such a way that there airflow is limited in and out of the lungs.

It means your lungs can’t expand and contract like they are supposed to, which makes it hard for you to breathe.

It is a term that covers so many lung diseases I can’t list them all.

Ans:

B Feedback: The obstruction of asthma, emphysema, and COPD can be related to inflammation that results in narrowing of the interior of the airway and to muscular constriction that results in narrowing of the conducting tube. With chronic inflammation, muscular and cilial action is lost, and complications related to the loss of these protective processes can occur, such as infections, pneumonia, and movement of inhaled substances deep into the respiratory system. In severe COPD, air is trapped in the lower respiratory tract, the alveoli degenerate and fuse together, and the exchange of gases is greatly impaired. Options A, C, and D are not incorrect, but option B is the best response.

31.

The nurse is caring for a child who has been newly diagnosed with asthma. What environmental modifications should the nurse encourage the parents to make to help their child avoid future attacks? (Select all that apply.)

Make sure the child begins herbal therapy as soon as possible.

Avoid crowded areas as much as possible.

Keep the child away from any known allergens.

Encourage the child to use a broom to sweep the bedroom every day.

Keep the child away from areas that are filled with cigarette smoke.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

912

B, C, E Feedback: Parents need to be encouraged to take measures to prevent acute attacks, including avoidance of known allergens, smoke-filled rooms, and crowded or dusty areas. OTC drugs and herbal remedies should be avoided if possible. The child should not be sweeping the bedroom because this will produce a lot of dust.

32.

The nursing instructor is talking to a group of nursing students about the treatment regimen for children with asthma. The students indicate they understand the information when they identify which class of drugs that comprise this regimen? (Select all that apply.)

Long-acting inhaled steroids

Xanthines

Leukotriene-receptor antagonists

Topical steroid nasal decongestants

Beta-agonists

Ans:

A, C, E Feedback: Antiasthmatics are frequently used in children. The leukotriene-receptor antagonists have been found to be especially effective for long-term prophylaxis in children. Acute episodes are best treated with a beta-agonist and then a long-acting inhaled steroid or a mast cell stabilizer. Xanthines (e.g., theophylline) have been used in children, but because of their many adverse effects and the better control afforded by newer agents, its use is reserved for patients who do not respond to other therapies. Topical steroid nasal decongestants may be used for symptom relief for nasal congestion but are not a regular part of asthma therapy in children.

33.

The nurse has just admitted a patient with asthma and the emergency department doctor has ordered the patient to begin taking zafirlukast (Accolate). The nurse would hold the medication and contact the physician if the patient reported taking which medication at home? (Select all that apply.)

Propranolol

Warfarin

Acetaminophen

Ampicillin

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Terfenadine

Ans:

A, B, E

913

Feedback: Use zafirlukast with caution if propranolol, theophylline, terfenadine, or warfarin is taken at the same time because increased toxicity can occur. Toxicity may also occur if these drugs are combined with calcium channel blockers, cyclosporine, or aspirin. No reported change of toxicity occurs when the patient is currently taking acetaminophen or ampicillin. 34.

A patient with asthma is going to begin taking an inhaled steroid. The nurse teaching the patient that what adverse effects may occur when using this drug? (Select all that apply.)

Headache

Rebound congestion

Sepsis

Epistaxis

Depression

Ans:

A, B, D Feedback: Adverse effects associated with the use of inhaled steroids include irritability, not depression, headache, rebound congestion, local infection, not sepsis and epistaxis.

35.

The nursing instructor is discussing the use of sympathomimetics in patients who have acute bronchospasm. The instructor shares with the students that this classification of drugs is contraindicated or only used with great caution in patients with what disorders? (Select all that apply.)

Hypothyroidism

Cardiac disease

Kidney disease

Diabetes mellitus

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Peripheral vascular disease

Ans:

B, D, E Feedback: Before administering a sympathomimetic the nurse should assess for possible contraindications or cautions that include any known allergies to any drug in this class, cigarette use, cardiac disease, vascular disease, arrhythmias, diabetes, and hyperthyroidism. Sympathomimetics have no known adverse effects in hypothyroidism or kidney disease.

914

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

915

Chapter 56 - Introduction to the Gastrointestinal System

What is a unique characteristic of the gastrointestinal (GI) system?

It contains multiple organs that work together.

It is lined with epithelial tissue.

It is the only system open to the external environment.

The GI tract is sterile and contains no bacteria.

Ans:

C Feedback: The GI system is the only system that is open to the external environment. The definition of a system is multiple organs working together to perform a function or functions. Many systems are lined with epithelial tissue. The GI tract is not sterile and does contain bacteria.

What is the purpose of the peritoneum?

Help propel the GI contents down the tract

Help keep the GI tract in place and prevent friction with movement

Decrease the muscle tone to slow the GI tract from moving too fast

Serve as a supportive layer and helps the tube maintain its shape

Ans:

B Feedback: The peritoneum lines the abdominal wall and viscera and helps keep the GI tract in place and prevents a buildup of friction with movement. The muscularis mucosa layer helps propel the GI contents downward. The nerve plexus helps to slow the GI tract when digestion is not a priority or stimulates it for digestion. The adventitia serves as a supportive layer and helps the tube maintain its shape.

A patient complains of frequent acid indigestion. The nurse instructs the patient to increase intake of what to reduce stimulation of acid production? Protein

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Calcium

Fiber

Alcohol

Ans:

916

Feedback: Fiber does not promote acid production so it would be a safe food for patients to eat to avoid stimulating more acid in the stomach. Acid production in the stomach is stimulated by gastrin which increases in the presence of protein, calcium, caffeine, or alcohol in the stomach. 4.

When the nurse administers a medication that stimulates the parasympathetic nervous system the drug will have what impact on the GI system?

Decrease sphincter tone

Decrease muscle tone

Decrease contractions

Decrease secretions

Ans:

A Feedback: The effect of the parasympathetic nervous system is that of rest and digest. It stimulates the GI tract causing increased muscle tone, secretions and contractions, and decreased sphincter tone allowing for easy movement.

What reflex causes an increase in small intestine activity when the stomach is stimulated by stretching, the presence of food, or cephalic stimulation?

Duodenalcolic

Gastroenteric

Gastrocolic

Ileogastric

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

917

B Feedback: The gastroenteric reflex is stimulation of the stomach, which causes an increase in activity in the small intestine. The duodenalcolic reflex stimulates colon activity and mass movement. The gastrocolic reflex is stimulation in the stomach, which increases activity in the colon. The ileogastric reflex is the introduction of chyme or stretch to the large intestine and slow stomach activity.

The nurse expects to find that the major activities of the GI tract decrease in a patient experiencing what?

A stress reaction

A medication regimen including cholinergic drugs

A local irritation of the small intestine

Thoughts of food

Ans:

A Feedback: Stimulation of the sympathetic nervous system will decrease all activity in the GI tract, and stress is a trigger for stimulating the sympathetic nervous system. Parasympathetic stimulation caused by cholinergic drugs, local irritation of the intestine, and the thought of food will all increase GI activity.

The nurse assesses the postoperative patient who had abdominal surgery and finds a complete absence of bowel sounds caused by what reflex?

Gastrocolic reflex

Renointestinal reflex

Intestinalintestinal reflex

Somatointestinal reflex

Ans:

C Feedback: After the intestinal irritation that occurs with handling the bowel during abdominal surgery, the risk of paralytic ileus is high because of the intestinalintestinal reflex. The gastrocolic reflex increases GI

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

918

movement when food is in the stomach. The renointestinal reflex slows GI activity in response to renal capsule swelling. The somatointestinal reflex slows GI activity in response to tight stretching of skin across the abdominal wall. 8.

The nurse is caring for a patient who is having difficulty swallowing tablets. What action will the nurse implement to help the patient swallow their medication?

Turn the patient’s head to one side

Place a warm cloth on the back of the patient’s neck

Have the patient suck on a Popsicle

Give the patient a copious amount of water to drink with the tablet

Ans:

C Feedback: Have the patient suck on a Popsicle, which will block external nerve impulses and allow the basic reflex to respond. The patient’s head should be straight to allow the muscle pairs to work together. A cold cloth can be placed on the back of the neck or the sternum to stimulate the reflex, but a warm cloth is not indicated. Textured food, not liquids, can also help with swallowing a tablet.

What does the nurse anticipate will happen first when the chemoreceptor trigger zone (CTZ) is stimulated?

Salivation increases

Gastric acid production decreases

Sweating increases

Heart rate increases

Ans:

A Feedback: When the CTZ is stimulated, salivation is stimulated first, which leads to a decrease in gastric acid production and then an increase in sweating and heart rate.

10. A)

What is the most basic type of movement that occurs in the esophagus? Peristalsis

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Mass movement

Churning

Segmentation

Ans:

919

Feedback: Peristalsis is the basic movement of the esophagus. The large intestine uses mass movement, the stomach uses churning, and the small intestine uses segmentation. 11.

Which substance is required for digestion and absorption of fats and fat-soluble vitamins?

Hydrochloric acid

Bile

Pancreatic enzymes

Gastric juice

Ans:

B Feedback: Bile is an alkaline secretion that is formed continuously in the liver, carried to the gallbladder by the bile ducts, and stored there. Bile salts are required for digestion and absorption of fats, including fatsoluble vitamins. Hydrochloric acid is produced in the stomach and begins the process of digestion. Pancreatic enzymes include chymotrypsin and trypsin that break down proteins, lipases to break down fat, and amylases to break down sugars. Gastric juice includes hydrochloric acid.

12.

The nurse, caring for a patient about to undergo gastric bypass surgery, explains that the majority of nutrients are absorbed where?

Sigmoid colon

Stomach

Small intestine

Ascending colon

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

920

C Feedback: The stomach empties into the small intestine where absorption of nutrients occurs. Therefore, very little absorption occurs in the stomach, mostly limited to alcohol and water. The colon allows for water to be absorbed from the feces but does not absorb nutrients.

13.

Water is absorbed in which portion of the intestine?

Duodenum

Jejunum

Ileum

Colon

Ans:

D Feedback: The colon absorbs water and sodium. The duodenum, ileum, and jejunum are parts of the small intestine where nutrients are absorbed.

14.

The nurse is caring for a patient who does not produce adequate mucus in the stomach resulting in what problem?

Diarrhea

Ulceration

Constipation

Distention

Ans:

B Feedback: Mucus functions to protect the lining of the digestive tract from digestive juices and protects the gastrointestinal mucosa from injury. Lack of mucous does not cause diarrhea, constipation, or distention.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

15.

921

What is the stimulus for the Duodenalcolic reflex?

Cephalic stimulation

Presence of food

Over extension of stomach

Swallowing

Ans:

B Feedback: Duodenalcolic reflex is stimulated by the presence of food or stretching in the duodenum that stimulates colon activity and mass movement, again to empty the colon for the new chyme.

16.

The patient learns there are healthy bacteria in the bowel that aids in digestion and asks the nurse why bacterium doesn’t get into the bloodstream. The nurse described what barrier to answer the patient’s question?

The mononuclear phagocyte system

The portal system

The omenta

The vomiting reflex

Ans:

C Feedback: The greater and lesser omenta hang from the stomach over the lower GI tract and are full of lymph nodes, lymphocytes, monocytes, and other components of the mononuclear phagocyte system. This barrier provides rapid protection for the rest of the body if any of the bacteria or other foreign agents in the GI tract should be absorbed into the body. Other options do not serve as barriers.

17.

The nurse is caring for a child diagnosed with cystic fibrosis whose body does not produce pancreatic enzymes appropriately which results in what?

Secretion of insulin

Maintenance of serum glucose levels

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Digestion of carbohydrates

Regulation of glucose metabolism

Ans:

922

Feedback: The absence of the pancreatic enzymes results in inadequate digestion and absorption of carbohydrates, fats, and proteins. The pancreas also secretes insulin and glucagon, hormones that regulate glucose metabolism and regulate blood sugar levels but this is not related to enzymes but rather to hormone secretion. 18.

What does the liver produce that is important in the digestive process?

Bile

Glucagon

Ammonia

Bilirubin

Ans:

A Feedback: The liver produces bile, which is stored in the gallbladder. The bile is very important in the digestion of fats and is deposited into the small intestine when the gallbladder is stimulated to contract by the presence of fats. Glucagon is a hormone secreted in response to the presence of food in the bowel. Ammonia is a byproduct of the breakdown of protein and bilirubin is metabolized by the liver and stored to produce more red blood cells.

19.

What is a layer of the nerve plexus?

Mesenteric

Mucosal

Sympathetic

Myenteric

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

923

Feedback: The nerve plexus has two layers of nerves, one submucosal layer and one myenteric layer. The other options are not part of the nerve plexus. 20.

A nurse in a rehab facility recognizes the patient with damage to what area of the brain will affect the patient’s ability to swallow?

Temporal lobe

Medulla oblongata

Cerebellum

Pons

Ans:

B Feedback: Swallowing is a voluntary act that is regulated by a swallowing center in the medulla oblongata of the central nervous system. Therefore, other options are incorrect.

21.

The nurse is caring for a patient admitted with a suspected malabsorption disorder as the result of pancreatic damage. What digestive enzymes does the pancreas secrete? (Select all that apply.)

Pepsin

Lipase

Amylase

Trypsin

Ptyalin

Ans:

B, C, D Feedback: Digestive enzymes secreted by the pancreas include trypsin, which aids in digesting protein; amylase, which aids in digesting starch; and lipase, which aids in digesting fats. Pepsin is secreted by the stomach and ptyalin is secreted in the saliva.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

22.

924

The nurse collects a nursing history from a patient who says she keeps so busy she often ignores the need to defecate. The nurse explains the danger of this behavior is what?

External sphincter will require more distention to stimulate reflex

Incontinence of stool due to loss of sphincter control

Diarrhea

Malabsorption of nutrients from the colon

Ans:

A Feedback: The receptors in the external sphincter adapt relatively quickly and will stretch and require more and more distention to stimulate the reflex if the reflex is ignored. This will not lead to bowel incontinence and is more likely to result in constipation from prolonged water absorption than diarrhea. Nutrients are not absorbed from the colon.

23.

Nutrients absorbed from the small intestine travel directly to the liver via what system?

Mesenteric system

Splenic system

Arterial system

Portal system

Ans:

D Feedback: The portal system drains the entire lower GI tract, where absorption occurs, and delivers what is absorbed into the venous system directly to the liver. The other options are distractors for this question.

24.

The nurse is caring for a patient who has developed severe constipation. What rationale does the nurse have for why the patient has also lost his or her appetite?

Ileogastric reflex

Intestinalintestinal reflex

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Peritoneointestinal reflex

Renointestinal reflex

Ans:

925

Feedback: The introduction of chyme or stretch to the large intestine slows stomach activity, known as the ileogastric reflex which explains why patients who are constipated have no appetite. The intestinalintestinal reflex is triggered by irritation of a section of the small intestine causing cessation of activity above that section. Peritoneointestinal reflex results from irritation of the peritoneum while renointestinal reflex results from irritation or swelling of the renal capsule. 25.

A patient presents at the walk-in clinic complaining of stomach pain that is relieved by eating which the nurse suspects is caused by a peptic ulcer. How would the nurse explain the ulceration in the stomach to the patient?

A mucosal lining protects the stomach from hydrochloric acid and a reduction in the mucosal lining or increase in acid production allows peptic ulcers to develop.

After digesting food, the stomach secretes a neutralizing solution to make the pH of the stomach neutral and if this doesn’t occur peptic ulcers can develop.

Our body makes hydrochloric acid for the digestion of the food we eat and that can eat right through the stomach causing ulceration when you eat a diet high in spicy food.

Acid is secreted by cells in the first part of the small intestine and when we eat the acid flows into the stomach so people who eat often have more exposure to acid.

Ans:

A Feedback: Gastrin and the parasympathetic system stimulate histamine-2 receptors near the parietal cells, causing the cells to release hydrochloric acid into the lumen of the stomach. Other digestive enzymes are released appropriately, in response to proteins and carbohydrates, to begin digestion. Peptic ulcers can develop when there is a decrease in the protective mucosal layer or an increase in acid production. Research indicates that people who eat a spicy diet everyday are less prone to stomach ulceration; the stomach does not neutralize the hydrochloric acid but the highly alkaline duodenum neutralizes the pH when chyme arrives from the stomach. Acid does not flow from the small intestine to the stomach.

26.

What organs are considered accessory digestive organs because they add in the digestive process? (Select all that apply.) The liver

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

The pancreas

The spleen

The gallbladder

The appendix

Ans:

A, B, D

926

Feedback: The pancreas, liver, and gallbladder are accessory organs that support the functions of the GI system. The spleen is not involved in digestion and the appendix is a part of the bowel, not an accessory organ. 27.

What process is used by the large intestine to evacuate waste products from the body?

Rectal stimulation

Basic electrical rhythm

Segmentation

Mass movement

Ans:

D Feedback: The large intestine uses a process of mass movement with an occasional peristaltic wave. When the beginning segment of the large intestine is stimulated, it contracts and sends a massive peristaltic movement throughout the entire large intestine. The end result of the mass movement is usually excretion of waste products. Segmentation occurs in the small intestine. The nerve plexus maintains a basic electrical rhythm (BER), much like the pacemaker rhythm in the heart. Rectal stimulation is not normally required for a bowel movement.

28.

The steps of the swallowing reflex are 1. Soft palate elevates. 2. Respirations cease. 3. Larynx rises and the glottis closes. 4. Pharyngeal constrictor muscles contract. In what order do these actions occur in order to allow a person to swallow?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

2, 4, 1, 3

4, 3, 2, 1

1, 2, 3, 4

3, 1, 4, 2

Ans:

927

Feedback: Receptors send impulses to the medulla, which stimulates a series of nerves that cause the following actions, which are the soft palate elevates and seals off the nasal cavity, respirations cease in order to protect the lungs, the larynx rises and the glottis closes to seal off the airway, and the pharyngeal constrictor muscles contract and force the food bolus into the top of the esophagus, where pairs of muscles contract in turn to move the bolus down the esophagus into the stomach. 29.

What occurs when the emetic zone is stimulated?

Regurgitation

Nothing due to overriding by mature centers

Projectile vomiting

Gagging

Ans:

C Feedback: The more primitive center is called the emetic zone. When stimulated, it initiates projectile vomiting. This type of intense reaction is seen in young children and whenever increased pressure in the brain or brain damage allows the more primitive center to override the more mature chemoreceptor trigger zone (CTZ). Regurgitation is vomiting. In adults the CTZ does not always override the emetic zone (patient with a severe head injury), and gagging is an adult precursor to vomiting.

30.

The nurse recognizes the potential for stimulation of the patient’s CTZ in what circumstances? (Select all that apply.)

Stimulation of the back of the throat when examining the oral cavity

Excessive stomach distention

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Increased intracranial pressure

Stimulation of stretch receptors in the large bowel

When the patient sits up abruptly

Ans:

A, B, C

928

Feedback: Tactile stimulation of the back of the throat, excessive stomach distention, increased intracranial pressure, stimulation of vestibular receptors in the inner ear, and stimulation of stretch receptors in the uterus and bladder are types of stimuli that can activate the CTZ. Stimulating stretch receptors in the large bowel and sitting up abruptly are not activators of the CTZ. 31.

The patient who experiences nausea produces less stomach acid. The nurse recognizes this as having what effect?

Increases the feeling of nausea

Protects the lining of the upper GI tract

Stimulates the parasympathetic nervous system

Directs fluid to mucus production in the small bowel

Ans:

B Feedback: There is a large increase in the production of mucus in the upper GI tract, which is accompanied by a decrease in gastric acid production. This action protects the lining of the GI tract from potential damage by the acidic stomach contents when vomiting occurs. It does not increase the feeling of nausea, stimulate the parasympathetic nervous system, nor does it direct fluid to mucus production.

32.

The nurse is caring for a young child who fell and hit his or her head and is brought to the emergency room with projectile vomiting. How does the nurse interpret this behavior?

The child is in intense pain

The child probably ate too much for dinner

The child likely has a full bladder

The child has increased intracranial pressure

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

929

D Feedback: Increased intracranial pressure applies direct pressure to the CTZ resulting in projectile vomiting. This child requires a thorough neurological assessment. Intense pain would be indicated by crying. A full bladder or eating too much for dinner would not cause projectile vomiting in a healthy child.

33.

What actions are required by the patient to protect the lungs when vomiting?

Closing of the glottis

Deep respirations

Production of extra saliva in the mouth

Reduction in acid production in the stomach

Ans:

A Feedback: The glottis must close and seal off the trachea in order to prevent entry of stomach contents into the lungs. The patient normally takes a deep breath just before the glottis closes but should not breath during emesis. Production of extra saliva and reduction in stomach acid do not protect the lungs.

34.

While bathing the noncommunicative patient, the nurse notices the patient is swallowing repeatedly. What should the nurse do in response?

Offer the patient a drink

Put the patient in a supine position

Ready the emesis basin

Continue the bath

Ans:

C Feedback: Nauseated patients who start swallowing repeatedly or complain about secretions in their throat are in the process of preparing for vomiting. The nurse should reach for the emesis basin. Offering water will increase vomiting. Placing the patient in a supine position risks the danger of aspiration of stomach

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

930

contents into the lungs. Continuing the bath does not prepare the nurse if the patient begins to vomit. 35.

The nurse admits a woman to the clinic for an annual exam. The patient denies any health issues but reports frequent constipation despite increasing fiber and water intake in her diet. What assessment questions will the nurse ask?

How many calories do you eat per day?

Do you often wear Spanx or other tight constraining clothing?

Do you often ignore the need to urinate and allow your bladder to fill?

Have you been taking narcotics every day?

Ans:

B Feedback: The nurse would assess the women to determine if tight constraining clothing such as Spanx are worn because taut stretching of skin and muscles over the abdomen irritates the nerve plexus and causes a slowing or cessation of GI activity to prevent further irritation. Calories per day would not contribute to constipation. It is unlikely the urge to void could be ignored long enough to cause constipation. Asking about the use of narcotics would only be appropriate if there are other manifestations that indicate the likelihood of this problem as constipation can be caused by many other things.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

931

Chapter 57 - Drugs Affecting Gastrointestinal Secretions

What action does the histamine-2 antagonist administered by the nurse have on the human body that will help to prevent peptic ulcer disease?

Destroys Helicobacter pylori

Coats and protects the stomach lining

Increases the pH of the secreted hydrochloric acid

Reduces the amount of hydrochloric acid secreted

Ans:

D Feedback: Histamine-2 antagonists are administered to reduce the amount of hydrochloric acid secreted in the stomach, which helps to prevent peptic ulcer disease. H2 antagonists do not act as an antibiotic to kill bacteria (i.e., H. pylori) coat and protect the stomach lining like sucralfate (Carafate), or increase the pH of the secreted hydrochloric acid.

What classification of drugs does the nurse administer to treat peptic ulcers by suppressing the secretion of hydrochloric acid into the lumen of the stomach?

Antipeptic agents

Histamine-2 antagonists

Proton pump inhibitors

Prostaglandins

Ans:

C Feedback: Proton pump inhibitors suppress the secretion of hydrochloric acid into the lumen of the stomach. Antipeptic agents coat any injured area in the stomach to prevent further injury. H2 antagonists block the release of hydrochloric acid in response to gastrin. Prostaglandins inhibit secretion of gastrin and increase secretion of the mucous lining of the stomach.

The nurse is caring for a patient requiring digestive enzyme replacement therapy and establishes what

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

932

appropriate nursing diagnosis for this patient? A)

Acute pain

Risk for constipation

Risk for imbalanced nutrition

Bowel incontinence

Ans:

C Feedback: The nurse would be concerned about the patient’s nutritional status because lack of digestive enzymes results in malnutrition. Replacement digestive enzymes help the patient improve digestion and absorption of essential nutrients. Effectiveness of the therapy is determined by the patient’s ability to maintain balanced nutrition. The other three options are not applicable to the use of replacement digestive enzymes.

What nursing interventions are included in the plan of care for a patient receiving antacids to relieve GI discomfort?

Administer this drug with other drugs or food.

Administer the antacid 1 hour before or 2 hours after other oral medications.

Limit fluid intake to decrease dilution of the medication in the stomach.

Have the patient swallow the antacid whole and do not crush or chew the tablet.

Ans:

B Feedback: A patient taking antacids should be advised to take the antacid 1 hour before or 2 hours after other oral medications. These tablets are often chewed to increase effectiveness. Limiting fluid intake can result in rebound fluid retention so that patients should be encouraged to maintain hydration. It is not necessary to take an antacid with other drugs, nor with food.

An adult patient is prescribed cimetidine (Tagamet). A nurse will instruct the patient that an appropriate dosage and frequency of cimetidine is what? 20 mg PO b.i.d

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

150 mg PO b.i.d

300 mg PO at bedtime

800 mg PO at bedtime

Ans:

933

Feedback: An appropriate dosage and frequency for cimetidine is 800 mg PO at bedtime. Also, 300 mg can be taken q.i.d at meals and at bedtime. Ranitidine is taken 150 mg daily or b.i.d. Famotidine is taken 20 mg PO b.i.d. Nizatidine can be taken 150 to 300 mg PO at bedtime. 6.

The nurse develops a discharge teaching plan for a patient who was prescribed pancreatic enzyme replacement and includes what important teaching point?

Take the enzymes on an empty stomach.

Crush the capsules and take with food.

Avoid spilling the powder on the skin because it may be irritating.

Pancreatin and pancrelipase are interchangeable.

Ans:

C Feedback: Patients receiving pancreatic enzymes should be taught to avoid spilling the powder on the skin because it can be very irritating. The enzymes should be taken with food and are often in a powder form. Pancreatin and pancrelipase are not interchangeable.

A patient comes to the clinic complaining of acid indigestion and tells the nurse he is tired of buying over-the-counter (OTC) antacids and wants a prescription drug to cure the problem. What would the nurse specifically assess for?

Alkalosis

Hypocalcemia

Hypercholesterolemia

Rebound tenderness at McBurney’s point

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

934

A Feedback: Prolonged or excessive use of OTC antacids can lead to the development of metabolic alkalosis. Many antacids contain calcium so that low calcium levels would be unlikely. Because metabolic alkalosis is a concern, metabolic acidosis is unlikely. High cholesterol levels are not associated with OTC antacid use. Rebound tenderness at McBurney’s point is related to appendicitis and not antacid use.

A patient with a duodenal ulcer is receiving sucralfate for short-term treatment. What will the nurse advise the patient to avoid?

Milk of Magnesia

Tums

Aluminum salts

Proton pump inhibitors

Ans:

C Feedback: If aluminum salts (AlternaGEL) are taken concurrently with sucralfate, a risk of high aluminum levels and related aluminum toxicity exists. The combination of sucralfate and aluminum salts should be avoided or used with extreme caution. Adverse reactions with sucralfate are not associated with Milk of magnesia, Tums, or proton pump inhibitors.

A patient has been prescribed esomeprazole (Nexium). What statement by the patient does the nurse evaluate as indicating that he or she has a good understanding of his newly prescribed drug?

I should open the capsules and crush the drug into applesauce.

It is important that I take the drug after each meal.

I need to swallow the drug whole and not chew the capsules.

I should always take the drug with an antacid.

Ans:

C Feedback: Esomeprazole must be swallowed whole, not cut, crushed, or chewed, which would interfere with its

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

935

effectiveness. The drug should not be taken with an antacid, which could interfere with absorption. The drug is taken once a day, not with each meal. 10.

Which of these patients would the nurse expect to be the best candidate for misoprostol (Cytotec)?

A 12-year-old with obsessive-compulsive disorder

A 22-year-old pregnant patient

A 46-year-old trial lawyer with hypertension

An 83-year-old man with rheumatoid arthritis

Ans:

D Feedback: The 83-year-old man with rheumatoid arthritis is most likely to be taking nonsteroidal antiinflammatory drugs (NSAIDs). Misoprostol is indicated for prevention of NSAID induced ulcers in adults at high risk for development of gastric ulcers. The other three patients would not be candidates for this drug.

11.

When comparing the histamine-2 antagonists to each other the nurse recognizes that cimetidine (Tagamet) is more likely to cause which adverse effect?

Dizziness

Headache

Gynecomastia

Somnolence

Ans:

C Feedback: Cimetidine was the first drug in this class to be developed. It has been associated with antiandrogenic effects, including gynecomastia and galactorrhea. Dizziness, headache, and somnolence are associated with all histamine-2 antagonists.

12.

What H2 antagonist would the nurse consider the drug of choice for a patient with advanced liver failure? Cimetidine

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Nizatidine

Ranitidine

Famotidine

Ans:

936

Feedback: Nizatidine differs from the other three drugs in that it is eliminated by the kidneys, with no first-pass metabolism in the liver. It is the drug of choice for patients with liver disease or dysfunction. 13.

When caring for a patient diagnosed with a peptic ulcer, the nurse administers omeprazole (Prilosec) along with what antibiotic to eradicate Helicobacter pylori?

Gentamicin

Ketoconazole

Tetracycline

Amoxicillin

Ans:

D Feedback: Gastric acid pump or proton pump inhibitors are recommended for the short-term treatment of active duodenal ulcers, gastroesophageal reflux disease, erosive esophagitis, and benign active gastric ulcer; for the long-term treatment of pathologic hypersecretory conditions; as maintenance therapy for healing of erosive esophagitis and ulcers; and in combination with amoxicillin and clarithromycin for the treatment of H. pylori infection. The other options are not antibiotics used to eradicate H. pylori.

14.

What priority teaching point does the nurse include when instructing patients about the use of antacids?

Reduce calorie intake to reduce acid production.

Take before each meal and before bed.

Be aware of risk of acid rebound with long-term use.

Consider liquid diet if diarrhea occurs.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

937

C Feedback: Repeated use of antacids can result in rebound acid production because more gastrin is produced when pH of acid level decreases. Patients should be taught that long-term use of antacids requires follow-up care. Calorie and fluid intake does not need to be reduced because it is important to maintain nutrition, especially if diarrhea occurs. Antacids are taken at least 1 hour before or 2 hours after any other drug or meal.

15.

For treatment of a gastric ulcer, what would the recommended dosing schedule of famotidine (Pepcid) be?

10 mg b.i.d

20 mg b.i.d

60 mg at bedtime

40 mg q am

Ans:

B Feedback: Famotidine should be administered 40 mg every day at bedtime or 20 mg b.i.d for treatment of a gastric ulcer. Options A, C, and D are not correct.

16.

The 59-year-old patient has peptic ulcer disease and is started on sucralfate (Carafate). What is an appropriate nursing diagnosis related to this medication?

Risk for constipation related to GI effects

Risk for injury: bleeding

Imbalanced nutrition related to nausea

Deficient fluid volume

Ans:

A Feedback: The adverse effects associated with sucralfate are primarily related to its GI effects. Constipation is the most frequently seen adverse effect. Imbalanced nutrition, if seen, would be related to diarrhea or

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

938

constipation and not nausea. Fluid volume deficit and bleeding are not common adverse effects of this drug. 17.

The nurse is preparing a patient for discharge with a prescription for sucralfate (Carafate) and teaches the patient to take the medication when?

With meals

With an antacid before breakfast

1 hour before or 2 hours after meals and at bedtime

After each meal

Ans:

C Feedback: Administer drug on an empty stomach, 1 hour before or 2 hours after meals and at bedtime, to ensure therapeutic effectiveness of the drug. Administer antacids, if ordered, between doses of sucralfate and not within 30 minutes of taking the drug. Options A, B, and D are not correct.

18.

The patient will receive ranitidine (Zantac) 150 mg PO at bedtime. Prior to administration, the nurse will inform the patient that common adverse effects related to this medication include what?

Tremors

Headache

Visual disturbances

Anxiety

Ans:

B Feedback: Headache, dizziness, somnolence, and mental confusion may occur with H2 antagonists. Visual disturbances, tremors, and anxiety are not normally associated with ranitidine.

19. A)

The nurse administers ranitidine (Zantac) cautiously to patients with evidence of what conditions? Renal disease

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Diabetes mellitus

Pulmonary disease

Migraine headaches

Ans:

939

Feedback: All histamine-2 antagonists are eliminated through the kidneys; dosages need to be reduced in patients with renal impairment. No caution is necessary with Zantac therapy in people with diabetes, pulmonary disease, or migraine headaches. 20.

The nurse would question an order for misoprostol if the patient was diagnosed with what condition?

Diabetes

Hypertension

Arthritis

Pregnancy

Ans:

D Feedback: This drug is contraindicated during pregnancy because it is an abortifacient. The other options are not correct.

21.

The nurse would assess patients with what condition to determine whether there is a need for a saliva substitute? (Select all that apply.)

Cystic fibrosis

Stroke

Cancer receiving chemotherapy or radiation therapy

Myocardial infarction

Chronic dry mouth

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

940

B, C, E Feedback: A saliva substitute helps in conditions that result in dry mouthstroke, radiation therapy, chemotherapy, and other illnesses. Patients with myocardial infarction do not require this drug. Patients with cystic fibrosis receive pancreatic enzymes rather than saliva substitute.

22.

After providing teaching to a patient prescribed lansoprazole (Prevacid), the nurse evaluates the patient understands the action of this medication when the patient makes what statement?

The medication inhibits acid secretions.

The medication is an antibiotic.

The medication is an analgesic.

The medication will promote healing of my ulcer.

Ans:

A Feedback: The gastric acid pump or proton pump inhibitors suppress gastric acid secretion by specifically inhibiting the hydrogenpotassium adenosine triphosphatase (H+,K+-ATPase) enzyme system on the secretory surface of the gastric parietal cells. The statement, The medication inhibits acid secretions, indicates that the patient understands that the medication inhibits acid secretion. This medication does not act as an antibiotic or analgesic, nor will it repair the ulcer.

23.

What would the nurse consider an indication for the use of antacids? (Select all that apply.)

Gastric hyperacidity

Gastritis

Peptic esophagitis

Hiatal hernia

Duodenal ulcer

Ans:

A, B, C, D Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

941

Antacids neutralize stomach acid by direct chemical reaction. They are recommended for the symptomatic relief of upset stomach associated with hyperacidity, as well as the hyperacidity associated with peptic ulcer, gastritis, peptic esophagitis, gastric hyperacidity, and hiatal hernia. Duodenal ulcer is not an indication for the use of an antacid. 24.

A patient presents to the walk-in clinic complaining of vomiting and burning in his or her midepigastria. The nurse suspects peptic ulcer disease and knows that to confirm peptic ulcer disease, the physician is likely to order a diagnostic test to detect the possible presence of what?

Infection with Helicobacter pylori

Decreased stomach acid secretion

Gastric irritation caused by nonsteroidal anti-inflammatory drugs (NSAIDs)

Overconsumption of spicy foods

Ans:

A Feedback: Peptic ulcers may result from increased acid production, decrease in the protective mucous lining of the stomach, infection with Helicobacter pylori bacteria, or a combination of these. Peptic ulcers do not result from decreased acid secretion or overconsumption of spicy foods. While gastric irritation can be caused by NSAIDs gastric irritation can result from many different causes so this would not be specifically assessed for unless the patient was found to use NSAIDs frequently, which is not indicated by the question.

25.

The nurse is providing education for a patient with peptic ulcer disease resulting from chronic nonsteroidal anti-inflammatory drug (NSAID) use who will begin a prescription of misoprostol (Cytotec). The nurse evaluates that the patient understands the actions of this drug when he or she says it does what?

Reduces the stomach’s volume of hydrochloric acid

Increases the speed of gastric emptying

Protects the stomach’s lining

Increases lower esophageal sphincter pressure

Ans:

C Feedback: Misoprostol is a synthetic prostaglandin that, like physiologic prostaglandin, protects the gastric mucosa. NSAIDs decrease prostaglandin production and predispose the patient to peptic ulceration.

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942

Misoprostol does not reduce gastric acidity (option A), improve emptying of the stomach (option B), or increase lower esophageal sphincter pressure (option D). 26.

What drug combination will the nurse normally administer most often to treat a gastric ulcer?

Antibiotics and histamine-2 antagonists

H2 antagonists, antibiotics, and bicarbonate salts

Bicarbonate salts, antibiotics, and ZES

Antibiotics and proton pump inhibitors

Ans:

D Feedback: Currently, the most commonly used therapy for gastric ulcers is a combination of antibiotics and proton pump inhibitors that suppress or eradicate Helicobacter pylori. H2 receptor antagonists are used to treat duodenal ulcers. Bicarbonate salts are not used. ZES is the abbreviation for ZollingerEllison syndrome and not a drug.

27.

The nurse questions an order for a proton pump inhibitor when the patient is known to take what other medication?

Theophylline

Penicillin

Digoxin

Heparin

Ans:

A Feedback: Decreased levels of ketoconazole and theophylline have been reported when combined with these drugs, leading to loss of effectiveness. There are no drugdrug interactions with penicillin, digoxin, or heparin.

28. A)

What histamine-2 antagonist might the nurse administer to a child? Cimetidine

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Famotidine

Nizatidine

Ranitidine

Ans:

943

Feedback: Famotidine is the only histamine2 antagonist approved for use in children if a histamine-2 antagonist is needed. Therefore, other options are not correct. 29.

The nurse is caring for a 27-year-old female patient who has just been prescribed misoprostol. What is a priority teaching point for this patient?

You will need to use a barrier-type contraceptive

Do not take NSAIDs with this drug

Adverse effects include nausea and diarrhea

It protects the lining of the stomach

Ans:

A Feedback: Misoprostol is contraindicated during pregnancy because it is an abortifacient. Women of childbearing age who use misoprostol should be advised to use barrier-type contraceptives. All other options are correct but are not a priority for this patient.

30.

The clinic nurse is caring for a 78-year-old male patient who is taking a proton pump inhibitor. What condition is this patient at increased risk for developing?

Sickle cell anemia

Megaloblastic anemia

Pernicious anemia

Iron deficiency anemia

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

944

Feedback: The use of proton pump inhibitors and H2 blockers in older adults has been associated with decreased absorption of vitamin B12 and the development of pernicious anemia. The use of proton pump inhibitors does not increase the risk of sickle cell, megaloblastic, or iron deficiency anemias. 31.

The nurse admits a patient who reports having taken a proton pump inhibitor for more than a decade. What assessment question will the nurse ask this patient?

Are you experiencing diarrhea?

Do you experience much abdominal pain?

Have you noticed any blood in your urine?

When is the last time you checked your blood pressure?

Ans:

A Feedback: Research indicates that patients taking proton pump inhibitors or histamine-2 antagonists demonstrate a significant increase in cases of Clostridium difficile infections leading to diarrhea so the nurse should assess this patient for diarrhea. There would be no indications to ask about abdominal pain, blood in the urine, or blood pressure.

32.

What symptoms would the nurse find to be consistent with a diagnosis of a peptic ulcer?

Pain a few hours after eating

Pain described as sharp and stabbing

Explosive diarrhea within 1 hour of eating

Unable to stand comfortably due to abdominal pain

Ans:

A Feedback: Ulcer patients present with a predictable description of gnawing, burning pain often occurring a few hours after meals. The pain is not described as sharp and stabbing. Diarrhea is not usually associated with peptic ulcer disease and patients do not find it difficult to stand upright.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

33.

945

The nurse is caring for a patient with cystic fibrosis who has recently not been taking her pancreatic enzymes recently. What is the primary assessment finding the nurse will see as a result of this noncompliance?

Constipation

Diarrhea

Malnutrition

Abdominal pain

Ans:

C Feedback: Patients with cystic fibrosis take pancreatic enzymes to promote digestion and absorption of nutrients so failure to take the drug would result in malnutrition and weight loss. Constipation, diarrhea, and abdominal pain would not be in the primary assessment finding.

34.

The nurse, caring for a patient with cystic fibrosis, administers pancreatic enzymes on what schedule?

1 hour after meals and snacks

With meals and snacks

2 hours before meals and snacks

In the morning and before bed

Ans:

B Feedback: To be sure the pancreatic enzymes are in place when food enters the small bowel the enzymes are administered with every meal and snack. Administering them before or after meals would render them ineffective.

35.

The patient prescribed nizatidine (Axid) chooses to take the medication once a day at bedtime. What dosage will the nurse administer?

150 to 300 mg

100 to 125 mg

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

20 to 40 mg

5 to 7.5 mg

Ans:

946

Feedback: The dosage for nizatidine, when taken PO only at bedtime, is 150 to 300 mg. Options B, C, and D are not correct.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

947

Chapter 58 - Drugs Affecting Gastrointestinal Motility

The nurse teaches the patient to best maintain optimal GI function by including what in the daily routine?

Exercise, adequate sleep, and avoiding caffeine

Proper diet, fluid intake, and exercise

Proper diet, avoiding alcohol, and cautious use of laxatives

Avoiding prescription medications, increased fluid intake, and vigorous exercise

Ans:

B Feedback: The best way to maintain gastrointestinal (GI) function is through proper diet including optimizing fiber intake, adequate fluid intake, and exercise, which will stimulate GI activity. Drugs should only be used when normal function cannot be maintained. Options A, C, and D are not correct.

The nurse admits to the clinic a 7-month-old infant whose mother reports that the baby has not had a bowel movement in 6 days. What drug would be appropriate to treat this patient?

Cascara (generic)

Magnesium hydroxide (Milk of Magnesia)

Polyethylene glycol-electrolyte solution (GoLYTELY)

Glycerin (Sani-Supp)

Ans:

D Feedback: Glycerin suppositories are the best choice for infants and young children when constipation is a problem. The other choices are not recommended for infants or children.

The nurse provides drug teaching to the patient who will begin taking polycarbophil (FiberCon). What is the nurse’s priority teaching point? Do not eat or drink anything for 2 hours after taking the medication.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Drink lots of water when taking the drug.

Take at night before bedtime.

The drug can be taken up to six times per day.

Ans:

948

Feedback: Patients must take plenty of water with polycarbophil. If only a little water is consumed, the medication may absorb enough fluid in the esophagus to swell the food into a gelatin-like mass that can cause obstruction and other severe problems. The drug should be taken no more than four times a day and should not be taken at night. 4.

A new mother required an episiotomy during the birth of her baby. Two days after delivery, the patient is in need of a laxative. What will be the most effective drug for the nurse to administer?

Bisacodyl (Dulcolax)

Castor oil (Neolid)

Magnesium sulfate (epsom salts)

Docusate (Colace)

Ans:

D Feedback: Docusate is a stool softener that will make expulsion of stool easier in a traumatized body area following an episiotomy. Care must be taken to choose a mild laxative that will not enter breast milk and not affect the newborn if the mother is nursing. Docusate is the drug of choice from this list because it is mild and will produce a soft stool and decrease the need to strain. The other options would not be appropriate because they do not soften the stool and are harsher laxatives that can enter breast milk.

The nurse, teaching a patient to be discharged with an order to use chemical stimulant laxatives PRN, instructs the patient that one of the most common adverse effects of this type of laxative is what?

Abdominal cramping

Rectal bleeding

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Confusion

Iron deficiency anemia

Ans:

949

Feedback: Common adverse effects of laxatives are diarrhea, abdominal cramping, and nausea. Central nervous system (CNS) adverse effects such as dizziness, headache, and weakness can occur. Rectal bleeding, confusion, and iron deficiency anemia are not associated with appropriate use of laxatives but may occur when laxatives are abused. 6.

A patient taking a chemical stimulant laxative and medications for heart failure and osteoarthritis calls the clinic and reports to the nurse that she is not feeling right. What is the priority question the nurse should ask this patient?

Effectiveness of laxatives

Timing of medication administration

The amount of fiber in her diet

Amount of fluid ingested

Ans:

B Feedback: Because laxatives increase the motility of the gastrointestinal (GI) tract and some laxatives interfere with the timing or process of absorption, it is not advisable to take laxatives with other prescribed medications. The administration of laxatives and other medications should be separated by at least 30 minutes, so the nurse should question when the patient is taking the laxatives and other medication. Other options may be questions the nurse would eventually ask, but the priority is timing of medication administration.

A patient who is taking metoclopramide (Reglan) has come to the clinic for a follow-up visit. The nurse will be most concerned about a drug-drug interaction when learning the patient is taking what other medication?

Albuterol (Proventil)

Digoxin (Lanoxin)

Furosemide (Lasix)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Acetylsalicylic acid (ASA)

Ans:

950

Feedback: Metoclopramide has been associated with decreased absorption of digoxin from the gastrointestinal (GI) tract. The nurse should monitor patients taking this combination carefully. The other options do not pose a concern about drugdrug interactions. 8.

What should the nurse tell the patient who will begin taking rifaximin (Xifaxan) for traveler’s diarrhea?

Do not start taking the drug until the diarrhea has persisted for at least 24 hours.

Taking the antibiotic will allow you to enjoy the local water and food without concern.

Do not take the drug if you have bloody diarrhea.

Start the drug 3 days before leaving for your trip and continue until you return.

Ans:

C Feedback: Rifaximin should not be taken if a patient has bloody diarrhea or diarrhea that persists for more than 48 hours. It is started after the signs and symptoms of the disease develop and is taken for 3 days. The traveler should still avoid exposure to foreign bacteria by not drinking tap water and by avoiding fruits and vegetables washed in tap water. Options A, B, and D are not correct.

A clinic patient with a history of heart failure requires a laxative for treatment of chronic constipation. What medication would be most appropriate for this patient?

Senna (Senokot)

Lactulose (Chronulac)

Magnesium sulfate (Milk of Magnesia)

Castor oil (Neoloid)

Ans:

B Feedback:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

951

Lactulose is often the drug of choice when a patient with cardiovascular problems requires a laxative. It is salt free, an important consideration in patients with heart failure; it acts by exerting a gentle osmotic pull of fluid into the intestinal lumen. Senna, magnesium sulfate, and castor oil are more aggressive laxatives and might not be the best choice for a patient with cardiovascular problems. 10.

A man with irritable bowel syndrome reports ongoing diarrhea and asks for a prescription for alosetron (Lotronex), which was helpful for his coworker who recently started taking the drug. What is the nurse’s best response?

This drug is only approved for use in women.

This drug is used as a laxative.

This drug is contraindicated with irritable bowel syndrome.

This drug is no longer on the market for prescription use.

Ans:

A Feedback: Alosetron (Lotronex) is approved for use in women with irritable bowel syndrome with diarrhea being the predominant complaint and should be discontinued immediately if the patient develops constipation or symptoms of ischemic colitis. Patients must read and sign a patientphysician agreement before it can be prescribed. Options B, C, and D are not correct.

11.

The nurse administers psyllium hydrophilic mucilloid (Metamucil) expecting it to have what action?

Slows peristalsis

Promotes reabsorption of water into bowel

Has antibacterial properties

Adds bulk to the stool

Ans:

D Feedback: Metamucil is a natural substance that forms a gelatin-like bulk of the intestinal contents. This agent stimulates local activity. It is considered milder and less irritating than many other bulk stimulants. Patients must use caution and take it with plenty of water because Metamucil absorbs large amounts of water and produces stools of gelatin-like consistency. It does not slow peristalsis, promote water reabsorption, or have antibacterial properties.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

12.

952

The nurse administers loperamide (Imodium) to decrease the number and liquidity of stool by what mechanism?

Decreasing intestinal motility

Absorbing toxins

Binding with fecal material to increase bulk

Blocking the chemoreceptor trigger zone (CTZ)

Ans:

A Feedback: Systemic antidiarrheal agents slow the motility of the gastrointestinal (GI) tract through direct action on the lining of the GI tract to inhibit local reflexes (bismuth subsalicylate), through direct action on the muscles of the GI tract to slow activity (loperamide), or through action on central nervous system (CNS) centers that cause GI spasm and slowing (opium derivatives). Options B, C, and D are not correct.

13.

The nurse teaches the patient that a common adverse effect of loperamide (Imodium) is what?

Fatigue

Flatulence

Disorientation

Tremors

Ans:

A Feedback: Adverse effects associated with antidiarrheal drugs, such as constipation, distention, abdominal discomfort, nausea, vomiting, dry mouth, and even toxic megacolon, are related to their effects on the gastrointestinal (GI) tract. Other adverse effects that have been reported include fatigue (option A), weakness, dizziness, and rash. options B, C, and D are not correct.

14.

The nurse will question an order for bismuth salts (Pepto-Bismol) in a patient with what condition?

Rheumatoid arthritis

Allergy to aspirin

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Hypertension

Viral gastroenteritis

Ans:

953

Feedback: Pepto-Bismol has aspirin in it and should not be given to a patient with an allergy to aspirin. There is no contraindication for a patient with rheumatoid arthritis, hypertension, or viral gastroenteritis. 15.

The home health nurse is caring for a 72-year-old man in his home. He complains about almost daily diarrhea. The nurse assesses for what common cause of diarrhea in older adults?

Diabetes

Hypertensive medications

Laxative overuse

Glaucoma

Ans:

C Feedback: Diarrhea in older adults may result from laxative overuse so the nurse should assess what over-thecounter (OTC) products the patient is using. Diabetes, hypertension medications, and glaucoma are not common causes of diarrhea in patients.

16.

What is the antidiarrheal of choice the nurse will administer to children older than 2 years of age with diarrhea?

Bismuth salts (Pepto-Bismol)

Loperamide (Imodium)

Paregoric (generic)

Difenoxin (Motofen)

Ans:

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

954

Feedback: Loperamide may be the antidiarrheal of choice in children older than 2 years of age if such a drug is needed. Special precautions need to be taken to monitor for electrolyte and fluid disturbances and supportive measures should be taken as needed. Serious fluid volume deficits may rapidly develop in children with diarrhea. Appropriate fluid replacement should include oral rehydration solutions. Although bismuth salts and paregoric may be given to children, they are not the drugs of choice. Difenoxin is not for use in children under 12 years of age. 17.

What antidiarrheal would the nurse administer to reduce the volume of discharge from the patient’s ileostomy?

Diphenoxylate (Lomotil)

Octreotide (Sandostatin)

Psyllium (Metamucil)

Loperamide (Imodium)

Ans:

D Feedback: Loperamide (Imodium), bismuth subsalicylate (Pepto-Bismol), and opium derivatives (paregoric) are indicated for the reduction of volume of discharge from ileostomies. The other options would not serve this purpose.

18.

The nurse teaches the patient who was prescribed a chemical stimulant laxative that this medication may have either a slow, steady effect or may cause severe cramping and rapid evacuation of the contents of the large intestine. What drug is the nurse teaching this patient about?

Bismuth salts

Bisacodyl

Castor oil

Cascara

Ans:

D Feedback: Specifically related to chemical stimulants, cascara, although a reliable agent, may have a either slow, steady action or may cause severe cramping and rapid evacuation of the contents of the large intestine.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

955

Bisacodyl and castor oil do not have potential adverse effect. Bismuth salts are an antidiarrheal. 19.

What is the priority nursing diagnosis for an 89-year-old patient with frequent liquid stools?

Imbalanced nutrition: less than body requirements

Deficient fluid volume

Deficient knowledge related to medications

Pain related to abdominal cramping

Ans:

B Feedback: Fluid volume deficits may develop rapidly in older adults with diarrhea. Older adults are more likely to develop adverse effects associated with the use of these drugs, including sedation, confusion, dizziness, electrolyte disturbances, fluid imbalance, and cardiovascular effects. Although nutrition, pain, and knowledge deficit may be concerns for this patient, they are not the priority concern.

20.

What drug does the nurse recognize as being classified as a chemical stimulant?

Bisacodyl (Dulcolax)

Polycarbophil (FiberCon)

Magnesium hydroxide (Milk of Magnesia)

Docusate (Colace)

Ans:

A Feedback: Bisacodyl is a chemical stimulant. Polycarbophil and magnesium hydroxide are bulk laxatives. Docusate is a lubricant laxative.

21.

The nurse is caring for a patient who has had impacted stools twice in the past month. What is an appropriate laxative for this patient?

Milk of Magnesia

Agoral Plain

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Colace

Dulcolax

Ans:

956

Feedback: Mineral oil (Agoral Plain) is not absorbed and forms a slippery coat on the contents of the intestinal tract. When the intestinal bolus is coated with mineral oil, less water is drawn out of the bolus and the bolus is less likely to become hard or impacted. Other options shown do not have this same effect of reducing the risk of another impaction as well as helping to eliminate stool. 22.

The home health nurse is caring for a patient with encopresis who was started on mineral oil therapy. The nurse teaches the patient and family that a common adverse effect is what?

Nausea

Vomiting

Leakage

Vitamin C deficiency

Ans:

C Feedback: Leakage and staining may be a problem when mineral oil is used and the stool cannot be retained by the external sphincter. Mineral oil does not cause nausea, vomiting, or vitamin C deficiency.

23.

When would it be appropriate for the nurse to administer a cathartic laxative to the patient? (Select all that apply.)

Partial small-bowel obstruction

Appendicitis

After having a baby

After a myocardial infarction (MI)

After anthelmintic therapy

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

957

C, D, E Feedback: Laxative, or cathartic, drugs are indicated for the short-term relief of constipation; to prevent straining when it is clinically undesirable (such as after surgery, myocardial infarction, or obstetric delivery); to evacuate the bowel for diagnostic procedures; to remove ingested poisons from the lower gastrointestinal (GI) tract; and as an adjunct in anthelmintic therapy when it is desirable to flush helminths from the GI tract. They are not indicated when a patient has an appendicitis or a partial small-bowel obstruction.

24.

When would it be appropriate for the nurse to administer castor oil as a laxative?

To ease the passage of stool in the patient who recently had a baby

To remove ingested poisons from the lower gastrointestinal (GI) tract

To evacuate the bowel for diagnostic procedures

To treat chronic constipation

Ans:

C Feedback: Indications include evacuating the bowel for diagnostic procedures and for short-term treatment of constipation. Castor oil is not indicated to remove ingested poisons nor to ease the passage of stool after having a baby. This drug should only be used on a short-term basis and is not for the treatment of chronic constipation because repeated use will cause GI tract exhaustion.

25.

For what action would the nurse administer magnesium citrate?

Block absorption of fats

Directly stimulate the nerve plexus in the intestinal wall

Form a slippery coat on the contents of intestine

Increase motility, increase fluid, and enlarge bulk of fecal matter

Ans:

D Feedback: Magnesium citrate is a rapid-acting, aggressive laxative that causes fecal matter to increase in bulk. It

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

958

increases the motility of the gastrointestinal (GI) tract by increasing the fluid in the intestinal contents, which enlarges bulk, stimulates local stretch receptors, and activates local activity. It does not block absorption of fats, stimulate the nerve plexus, or form a slippery coat. 26.

The nurse administers metoclopramide to the patient with what condition?

Chronic diabetic gastroparesis

Impaction

Encopresis

Patients requiring diagnostic procedures

Ans:

A Feedback: Indications for metoclopramide include relief of acute and chronic diabetic gastroparesis, short-term treatment of gastroesophageal reflux disorder in adults who cannot tolerate standard therapy, prevention of postoperative or chemotherapy-induced nausea and vomiting, facilitation of small-bowel intubation, stimulation of gastric emptying, and promotion of intestinal transit of barium. It would not be used for treatment of impaction, encopresis, and in patients requiring diagnostic procedures.

27.

What drug does the nurse administer that inhibits intestinal peristalsis through direct effects on the longitudinal and circular muscles of the intestinal wall?

Bismuth subsalicylate

Loperamide

Paregoric

Magnesium citrate

Ans:

B Feedback: Actions of loperamide include that it inhibits intestinal peristalsis through direct effects on the longitudinal and circular muscles of the intestinal wall, slowing motility and movement of water and electrolytes. Bismuth subsalicylate inhibits local reflexes. Paregoric works through action on CNS centers that cause GI spasm and slowing. Magnesium citrate is a laxative.

28.

The family brings a patient to the emergency department saying he has been hallucinating and falls so deeply asleep he stops breathing when not stimulated. The nurse learns the patient has been self-

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treating diarrhea and suspects the patient was taking what medication? A)

Paregoric

Bismuth subsalicylate

Loperamide

Colace

Ans:

A Feedback: Opium derivatives, like paregoric, are associated with light-headedness, sedation, euphoria, hallucinations, and respiratory depression related to their effect on opioid receptors. Nonopioids such as bismuth subsalicylate and loperamide would not cause respiratory depression. Colace is a stool softener, not an antidiarrheal.

29.

The nurse develops a teaching plan for a 77-year-old patient who has been prescribed loperamide PRN. The nurse’s priority teaching point is what?

May cause hallucinations or respiratory depression

Take drug after each loose stool

Drug remains in the bowel without being absorbed into the bloodstream

Avoid pregnancy and breast-feeding while taking drug.

Ans:

B Feedback: Loperamide is taken repeatedly after each loose stool. Teaching the patient when to take the drug is the priority teaching point. Paregoric, and not loperamide, can cause hallucinations and respiratory depression. The drug is absorbed systemically. It is unlikely a 77-year-old patient will get pregnant or breast-feed so this is not the highest priority.

30.

A patient receiving loperamide (Imodium) should be alerted by the nurse to what possible adverse effect?

Anxiety

Bradycardia

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Fatigue

Urinary retention

Ans:

960

Feedback: Patients should be aware that they should not drive or operate machinery while taking loperamide (Imodium) because it can cause fatigue. Anxiety, bradycardia, and urinary retention are not commonly associated with loperamide. 31.

The patient had surgery 2 days ago and bowel motility has not returned. What drug might the nurse administer to stimulate the gastrointestinal (GI) tract?

Dexpanthenol

Docusate

Psyllium (Metamucil)

Senna

Ans:

A Feedback: Dexpanthenol is indicated for the prevention of intestinal atony or loss of intestinal muscle tone in postoperative adults. Docusate, psyllium, and senna are laxatives that would not be indicated for the postoperative patient with no bowel activity.

32.

The hospice nurse is caring for a patient diagnosed with bone cancer who is receiving large doses of opioid medications to relieve pain. The patient has used other laxatives in the past to treat opioidinduced constipation but nothing is working now. What drug would the nurse request the family doctor to order for this patient?

Methylnaltrexone (Relistor)

Castor oil

Paregoric

Mineral oil

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Ans:

961

A Feedback: Methylnaltrexone (Relistor) was approved in 2008 for the treatment of opioid-induced constipation in patients with advanced disease who are receiving palliative care and are no longer responsive to traditional laxatives. Castor oil, mineral oil, and paregoric would likely be ineffective in this patient.

33.

The nurse, providing patient teaching, explains that difenoxin and diphenoxylate are chemically related to what medication?

Morphine

Demerol

Diphenhydramine

Diflucan

Ans:

B Feedback: Difenoxin and diphenoxylate are chemically related to meperidine and are used at doses that decrease gastrointestinal activity without having analgesic or respiratory effects.

34.

The nurse collects a stool culture from a patient diagnosed with traveler’s diarrhea. What bacterium does the nurse expect the culture to grow?

Escherichia coli

Staphylococcus aureus

Streptococcus type B

Pseudomonas

Ans:

A Feedback: Escherichia coli is the most common cause of traveler’s diarrhea. Staphylococcus, Streptococcus, and Pseudomonas would be highly unlikely to grow in the stool of a patient with traveler’s diarrhea.

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35.

962

The nurse administers lubiprostone (Amitiza) to the patient with irritable bowel syndrome and anticipates what therapeutic action from the drug?

Secretion of chloride-rich intestinal fluid leading to increased motility

Adding bulk to the fecal matter to ease the process of stooling

Irritation of the inner lining of the bowel to increase bowel motility

Stimulate the bowel by increasing innervation

Ans:

A Feedback: Lubiprostone is a locally acting chloride channel activator that increases the secretion of a chloride-rich intestinal fluid without changing sodium or potassium levels. Increasing the intestinal fluid leads to increased motility. It does not add bulk, irritate the inner lining, or innervate the bowel.

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Chapter 59 - Antiemetic Agents

A high school student starts vomiting and goes to see the school nurse. The student asks the nurse what part of his brain makes him vomit. What area of the brain will the nurse tell the student must be stimulated for vomiting to occur?

Chemoreceptor trigger zone (CTZ)

Forebrain

Hypothalamus

Thalamus

Ans:

A Feedback: The CTZ has to be stimulated in order for vomiting to occur. The GI mucosa, hypothalamus, and thalamus are not associated with eliciting vomiting. The forebrain, hypothalamus, and thalamus have no part in vomiting.

A 25-pound child is in the clinic because of vomiting the last 24 hours. The nurse is to administer trimethobenzamide (Tigan). What dose will the nurse administer by what route?

0.25 mg IV

1.1 mg/kg IM

100 mg rectally

200 mg orally

Ans:

C Feedback: The nurse will administer 100 mg rectally. The other doses are inappropriate. A usual dose of palonosetron for an adult is 0.25 mg IV. A usual dose of hydroxyzine for a child is 1.1 mg/kg IM, and a usual dose of trimethobenzamide for a child weighing more than 30 pounds is 200 mg orally.

The clinic nurse is caring for a 55-year-old farmer who has been prescribed an antiemetic for an inner ear problem. The patient states I need to get back to work. With this patient especially, what will the nurse caution him about?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Weight gain

Suicidal ideation

Diarrhea

Photosensitivity

Ans:

964

Feedback: Photosensitivity is a common adverse reaction with many antiemetics. The nurse should advise the patient to use sunscreen and wear protective garments if exposure cannot be avoided, which is unlikely considering the patient’s occupation. Weight gain, suicidal ideation, and diarrhea have not been identified as adverse effects of antiemetics. 4.

A female college student with migraine headaches that cause nausea and vomiting has been prescribed trimethobenzamide (Tigan). It is important for the nurse to caution the student to avoid using what?

St. John’s wort

Calcium channel blockers

Selective serotonin reuptake inhibitors (SSRIs)

Alcohol

Ans:

D Feedback: Locally acting antiemetics depress areas of the CNS. If combined with other CNS depressants, such as alcohol, patients could experience increasing CNS depression including dizziness and somnolence. St. John’s wort, calcium channel blockers, and SSRIs are not CNS depressants.

A cancer patient is in the outpatient department to receive chemotherapy. The nurse administers prochlorperazine (Compazine) prophylactically before the infusion. What will the nurse’s teaching for this patient include?

Avoid driving or any dangerous activities if dizziness or drowsiness occurs.

Cover the head in extreme of temperatures.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Take extra precautions to avoid heat stroke.

Check blood pressure at home on a regular basis.

Ans:

965

Feedback: Prochlorperazine is an antiemetic that can cause dizziness and drowsiness. A patient who is taking it should be advised not to drive or undertake dangerous activities if these adverse effects occur. The drug does not cause heat loss or inability to sweat that may lead to heat stroke. This drug should not affect blood pressure, so there is no need to test for it. 6.

What is an appropriate nursing action for a hospitalized patient receiving aprepitant (Emend)?

Elevate the head of the bed.

Encourage fluids.

Take the patient’s temperature.

Place an NPO sign on the door.

Ans:

B Feedback: Because dehydration is an adverse effect of aprepitant, the nurse will want to encourage the patient to drink as much liquid as possible. Elevating the head of the bed would be unnecessary; the patient’s temperature would not be affected by aprepitant; we are encouraging fluids so placing an NPO sign on the door would not be appropriate for this patient.

The nurse is working in the medical station at a local amusement park. An adult is being seen complaining of dizziness and feelings of seasickness after going on several rides. What would the nurse suspect the patient may benefit from?

An anticholinergic

A histamine H2 blocker

Substance P/neurokinin 1 receptor antagonist

Cannabis

Ans:

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Feedback: Nausea and vomiting associated with motion sickness is best treated with an anticholinergic that acts as an antihistamine. Histamine H2 blockers affect gastric acid production. Substance P/neurokinin 1 receptor antagonists and cannabis are prescribed only as adjuncts to cancer chemotherapy drugs or other therapy. 8.

A women’s community group is attending the first-aid class the nurse is teaching. The nurse will instruct the women to do what if a child ingests a possible overdose of medication or other potential poison?

Call an ambulance.

Make an appointment to see the health care provider.

Induce vomiting by sticking a finger down the child’s throat.

Call the local poison control center and follow their directions.

Ans:

D Feedback: New guidelines suggest that potential ingestion with poison should prompt an immediate call to the local poison control center and then follow their directions. An ambulance may not be needed and it may take too long to get an appointment with a health care provider. Induction of vomiting could be harmful and does not represent the best treatment.

The nurse is caring for a child who has been vomiting intermittently for 24 hours. What is the drug of choice for children who need an antiemetic?

Dronabinol (Marinol)

Metoclopramide (Reglan)

Meclizine (Antivert)

Prochlorperazine (Compazine)

Ans:

D Feedback: Prochlorperazine is often the drug of choice with children because it has established oral, rectal, and

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parenteral doses. The other three options are not recommended for children. 10.

The nurse is caring for a patient who has begun vomiting after undergoing bariatric surgery. When including this complication in the plan of care, what would be an appropriate nursing diagnosis related to the adverse effects of drowsiness and weakness associated with an antiemetic?

Acute pain related to central nervous system (CNS), skin, and gastrointestinal (GI) effects

Risk for injury related to CNS effects

Decreased cardiac output related to cardiac effects

Deficient knowledge regarding drug therapy

Ans:

B Feedback: Because the patient is experiencing CNS effects, the nurse will be concerned about the patient’s safety. The appropriate nursing diagnosis would be risk for injury related to CNS effect. Acute pain related to CNS, skin, and GI effects; decreased cardiac output related to cardiac effects; and deficient knowledge regarding drug therapy would not be appropriate because no evidence is provided in the question to support any of these diagnoses.

11.

What medication, given with aprepitant (Emend), is used to effectively manage chemotherapy-induced emesis?

Bonamine

Dexamethasone

Phenergan

Ativan

Ans:

B Feedback: Aprepitant acts directly in the central nervous system to block receptors associated with nausea and vomiting with little to no effect on serotonin and dopamine levels, nor corticosteroid receptors. It is approved for use in treating nausea and vomiting associated with highly emetogenic antineoplastic chemotherapy, including cisplatin therapy. It is given orally, in combination with dexamethasone. Bonamine, Phenergan, and Ativan are not used in conjunction with Emend.

12.

What symptom may be related to the use of dronabinol (Marinol)?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Bradycardia

Hypertension

Rash

Anxiety

Ans:

968

Feedback: Dronabinol and nabilone are only approved for use in managing nausea and vomiting associated with cancer chemotherapy in patients who have not responded to other treatment. The exact mechanisms of action of dronabinol and nabilone are not understood. They are readily absorbed and metabolized in the liver, with excretion through bile and urine. They are controlled substances. Dronabinol is a category C-III controlled substance and nabilone is a category C-II substance. They must be used under close supervision because of the possibility of altered mental status. Dronabinol does not cause bradycardia, hypertension, or a rash. 13.

People taking phenothiazines need to be assessed for extrapyramidal symptoms. What effects are considered adverse effects of the phenothiazines?

Dysphoria, anxiety, and dizziness

Drowsiness, dystonia, and blurred vision

Dry mouth, blurred vision, and urinary retention

Hypertension, confusion, and shuffling gait

Ans:

B Feedback: Adverse effects include drowsiness, dystonia, photophobia, blurred vision, and discolored pink to redbrown urine. Adverse effects of the phenothiazines do not include dysphoria, urinary retention, or confusion.

14.

A 57-year-old patient is to receive metoclopramide (Reglan) for nausea. What statement by the patient leads the nurse to believe that the patient has understood the nurse’s teaching? During episodes of nausea, I will drink clear liquids.

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

I may be drowsy as a result of taking this medication.

This medication should be taken on a full stomach.

I will need to take supplemental potassium while I am taking this medication.

Ans:

969

Feedback: Adverse effects include drowsiness, fatigue, restlessness, extrapyramidal symptoms, and diarrhea. The other statements are incorrect and would tell the nurse that this patient does not understand the teaching about this drug. 15.

Prochlorperazine (Compazine) is contraindicated in which population?

Children under the age of 12 years

Preoperative patients

Pregnant women

People weighing <100 pounds

Ans:

C Feedback: Caution should be used in individuals with renal dysfunction, moderate liver impairment, active peptic ulcer, or during pregnancy and lactation. Compazine can be used in children under the age of 12, preoperative patients, and people weighing <100 pounds.

16.

A clinic nurse is caring for a 5-year-old brought to the clinic with a history of intermittent vomiting for 24 hours. The nurse would recognize that which drug is not recommended for use in children?

Dimenhydrinate

Promethazine

Metoclopramide

Diphenhydramine

Ans:

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Feedback: Metoclopramide is indicated for treatment of nausea and vomiting, especially related to chemical stimulation of the chemoreceptor trigger zone in adults. It does not have a pediatric dose for use as an antiemetic. Options A, B, and D are not correct. 17.

A 54-year-old patient is going on an ocean cruise. What medication would be most effective for motion sickness?

Meclizine (Antivert)

Diphenhydramine (Benadryl)

Hydroxyzine (Atarax)

Metoclopramide (Reglan)

Ans:

A Feedback: Meclizine (Antivert) is the drug of choice to treat motion sickness associated with an ocean voyage. Options B, C, and D are not correct.

18.

What is the best indicator of decreased nausea after administering ondansetron (Zofran) IV?

Heart rate 64 beats/min

Blood pressure 110/64

Patient hungry

Patient states, I feel less nauseated.

Ans:

D Feedback: Monitor patient’s response to the drug (relief of nausea and vomiting).Nausea is a subjective symptom. The patient telling the nurse about a decrease in nausea would be the best indication the drug is working. Therefore, answers A, B, and C are incorrect.

19.

What is an example of a locally acting antiemetic?

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Phenothiazine

Antacid

Nonphenothiazine

Antihistamine

Ans:

971

Feedback: An antacid is an example of a locally acting antiemetic. Phenothiazines, nonphenothiazines, and antihistamines are examples of centrally acting antiemetics. 20.

What is the therapeutic action of the phenothiazines in reducing nausea?

Increasing gastric motility

Change responsiveness of the chemoreceptor trigger zone (CTZ)

Blocking histamine receptors

Producing sedation

Ans:

B Feedback: Phenothiazines are centrally acting antiemetics, which change the responsiveness or stimulation of the CTZ in the medulla.

21.

How does buclizine (Bucladin) function as an effective antiemetic?

Lowers blood glucose levels

Lowers HA1c

Increases sensitivity to insulin

Promotes anticholinergic effects

Ans:

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972

Feedback: These drugs are anticholinergics that act as antihistamines and block the transmission of impulses to the chemoreceptor trigger zone (CTZ). Options A, B, and C are not correct. 22.

What is the main action of antiemetics?

Altering central nervous system (CNS) actions to decrease perception of nausea

Speeding up the gastrointestinal (GI) tract so the stomach empties rapidly

Depressing hyperactive vomiting reflex

Changing the perception of motion in motion sickness

Ans:

C Feedback: Antiemetics act by depressing the hyperactive vomiting reflex, either locally or through alteration of CNS actions. Options A, B, and D are not the main action of antiemetics.

23.

When would the nurse recommend that a traveler take an oral antiemetic to prevent motion sickness?

When symptoms first begin

10 minutes prior to trip

30 minutes prior to trip

1 day prior to trip

Ans:

C Feedback: For prevention of motion sickness, give antiemetics 30 minutes before travel and every 4 to 6 hours, if necessary. The nurse would not recommend taking them with the first symptoms, 10 minutes before the trip, or 1 day prior to the trip.

24.

The nurse is caring for a patient who is vomiting. Which nursing intervention is most important after the patient vomits? Rinse patient’s mouth with water

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Provide a back rub

Offer dry crackers

Wash patient’s face and hands

Ans:

973

Feedback: Provide the patient with water and a basin to rinse mouth after vomiting. This decreases the bad taste and the corrosion of tooth enamel by gastric acid. Options B, C, and D are not correct. 25.

The nurse is caring for a patient who is receiving ondansetron (Zofran) for nausea associated with chemotherapy. The nurse would teach the patient that what adverse effect may occur with this medication?

Weakness and rash

Dysuria and photosensitivity

Headache and myalgia

Fever and diarrhea

Ans:

C Feedback: Patients receiving ondansetron (Zofran) most commonly experience headache, dizziness, and myalgia. There may also be pain at the injection site, rash, constipation, hypotension, and urinary retention. Options A, B, and D are not correct. Chapter 59

26.

The obstetrics nurse is caring for a patient who started vomiting before delivering her son. The patient is still complaining of nausea and vomiting an hour after her delivery. What medicine would the nurse expect the physician to order for this patient?

Hydroxyzine (Vistaril)

Trimethobenzamide (Tigan)

Dronabinol (Marinol)

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Nabilone (Cesamet)

Ans:

974

Feedback: Hydroxyzine is used for nausea and vomiting before or after obstetric delivery or surgery. It is rapidly absorbed, metabolized in the liver, and excreted in urine. It has not been associated with fetal problems during pregnancy and is not thought to enter breast milk; however, as with all drugs, caution should be used during pregnancy and lactation. Tigan, Marinol, and Cesamet are not used for obstetric/gynecology patients. 27.

The patient has begun complaining about nausea and vomiting. What would the nurse assess to determine the need for therapy?

How well the patient is eating

Color, amount, and frequency of vomiting episodes

Number of times patient’s family complains of vomiting episodes

Number of times patient’s family reports the patient is nauseated

Ans:

B Feedback: Assess complaints of nausea and evaluate emesis, and note color, amount, and frequency of vomiting episodes to determine need for therapy. The nurse is assessing the patient, not the family in this instance. How well the patient is eating is not an indicator of whether the patient needs therapy for nausea and vomiting.

28.

The nurse is caring for an oncology patient who is vomiting. When writing a plan of care for this patient, what would be an appropriate nursing diagnosis?

Risk for injury related to cardiovascular effects

Deficient knowledge regarding motion sickness

Decreased cardiac output related to cardiac effects

Acute pain related to constipation

Ans:

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Feedback: Nursing diagnoses related to drug therapy might include decreased cardiac output related to cardiac effects. Answers A, B, and D are not appropriate nursing diagnoses for this patient. 29.

What are some nonpharmacologic measures a nurse can use to help a patient who is nauseated or vomiting? (Select all that apply.)

Quiet environment

Visitors

Soft, bland meals (if not contraindicated)

Deep breathing

Carbonated drinks (if not contraindicated)

Ans:

A, D, E Feedback: Provide support and encouragement, as well as other measures (quiet environment, carbonated drinks, deep breathing), to help the patient cope with the discomfort of nausea and vomiting and drug effects. Visitors do not support the quiet environment needed. Patients who are nauseated or vomiting generally do not want to eat.

30.

The nurse is discharging a patient being sent home on antiemetic therapy. How would the nurse evaluate the plan of care that this patient has had while hospitalized?

Monitor for adverse effects.

Provide comfort and safety measures, including mouth care, ready access to bathroom facilities, assistance with ambulation and periodic orientation, ice chips to suck, protection from sun exposure, and remedial measures to treat dehydration if it occurs.

Assess the patient carefully for any potential drugdrug interactions.

Monitor laboratory test results including liver and kidney function tests.

Ans:

A Feedback: Monitor for adverse effects (dizziness, confusion, gastrointestinal alterations, cardiac arrhythmias,

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976

hypotension, gynecomastia, pink-to-brown-tinged urine, photosensitivity). The evaluation of the patient care plan would not include monitoring laboratory results (assessment phase), providing comfort measures, or assessing for drugdrug interactions (implementation phase). 31.

A nursing student correctly identifies which body system as being associated with most of the adverse effects of antiemetics?

Renal

Central nervous system (CNS)

Cardiovascular

Integumentary

Ans:

B Feedback: Most antiemetics cause some CNS depression. Specific antiemetics may cause adverse effects associated with the renal, cardiovascular, and the integumentary systems, but these systems are not associated with the entire classification of antiemetics.

32.

A patient has received a prescription for nabilone (Cesamet) for treatment of nausea. The nurse is aware that this medication is used for what reason?

The patient has a substance abuse problem.

The patient is under age 18.

The patient is experiencing motion sickness.

The patient has not responded to other medications.

Ans:

D Feedback: Nabilone is a miscellaneous agent that is developed from the active ingredient of marijuana. It is used to treat nausea and vomiting related to cancer chemotherapy and is used only after the patient has not responded to other antiemetic medications. It should not be used in patients under 18 and because it is derived from marijuana it would not be appropriate to use for a patient with a history of substance abuse.

33.

The nurse is performing an admission assessment of a female teenage patient who has been experiencing nausea and vomiting. What question would be most important for the nurse to ask this

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

977

patient? A)

What is the date of your last period?

What makes your nausea worse?

Have you also had diarrhea?

When did you last urinate?

Ans:

A Feedback: Most antiemetics are not appropriate for use by patients who are pregnant or lactating; therefore, it is most important for the nurse to determine whether the patient could be pregnant. Options B, C, and D are not as important as possible pregnancy.

34.

A patient develops intractable hiccoughs after surgery. The nurse anticipates that the physician will order which drug?

Metoclopramide (Reglan)

Chlorpromazine (Thorazine)

Meclizine (Antivert)

Granisetron (Kytril)

Ans:

B Feedback: Chlorpromazine is a phenothiazine; phenothiazines are the drug of choice for intractable hiccoughs. Thus, options A, C, and D are not correct.

35.

The nurse is aware that patients who experience motion sickness are experiencing problems with which body system?

Gastrointestinal

Peripheral nervous system

Vestibular

Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

Central nervous system (CNS)

Ans:

978

Feedback: Motion sickness is related to the vestibular (i.e., inner ear) system. This disturbance in this system may also cause disturbances in the GI (nausea) and CNS (dizziness) systems. The peripheral nervous system is not involved.

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979