Test Bank For Medical Dosage Calculations A Dimensional Analysis Approach, Updated Edition, 11th Edi by ACADEMIAMILL

Test Bank For Medical Dosage Calculations A Dimensional Analysis Approach, Updated Edition, 11th Test Bank For Medical Dosage Calculations A Dimensional Analysis Approach, Updated Edition, 11th edition Edition by June Olsen, Giangrasso, Shrimpton | June L. Olsen, Anthony Giangrasso, Dolores Shrimpton Chapter 1-12 All Chapters 1-12 Chapter 1

Review of Arithmetic for Dosage Calculations

1) Write the following as a mixed number: 17/4. 1. 4 1/4 2. 4 3. 64 4. 20 Answer: 1 Explanation: Divide the numerator by the denominator or 17 ÷ 4 = 4 with 1 left over so the answer is 4 with the 1 remainder over 4 or 4 ¼ Learning Outcome: 1.1 Changing improper to mixed form. 2) Write the following as a mixed number: 36/7. 1. 4 6/7 2. 5 1/7 3. 4 1/7 4. 5 Answer: 2 Explanation: Divide the numerator by the denominator: 36 ÷ 7 = 5 with a remainder of 1 or 5 1/7 Learning Outcome: 1.1 Changing improper to mixed form. 3) Write the following as a mixed number: 7/2. 1. 4 1/2 2. 5 1/2 3. 3 1/2 4. 3 Answer: 3 Explanation: Divide the numerator by the denominator: 7 ÷ 2 = 3 with 1 remaining or 3 1/2 Learning Outcome: 1.1 Changing improper to mixed form. 4) Write the following number as an improper fraction: 8 5/6. 1. 53/6 2. 40/6 3. 53/8 4. 45/6 Answer: 1 Explanation: Multiply the whole number by the denominator, and add the numerator. 8 × 6 = 48 + 5 = 53. Place this number over the denominator for 53/6 Learning Outcome: 1.1 Changing mixed to improper form.

5) Write the following number as an improper fraction: 5 5/6. 1. 35/6 2. 30/6 3. 25/6 4. 41/6 Answer: 1 Explanation: Multiply the whole number by the denominator and add the numerator: 5 × 6 = 30 + 5 = 35. Place this number over the denominator: 35/6 Learning Outcome: 1.1 Changing improper to mixed form. 6) Write the following number as an improper fraction: 8 1/3. 1. 11/3 2. 24/3 3. 8/3 4. 25/3 Answer: 4 Explanation: Multiply the whole number by the denominator and add the numerator: 8 × 3 = 24 + 1 = 25 Place this number over the denominator: 25/3 Learning Outcome: 1.1 Changing improper to mixed form. 7) Write 0.125 as a fraction in lowest terms and as a percentage. 1. 125/100; 1.25% 2. 25/100; 25% 3. 1/6; 12.5% 4. 1/8; 12.5% Answer: 4 Explanation: Write one hundred twenty-five thousandths as 125/1000, and then reduce the fraction to 1/8. Move the decimal two places to the right yielding 12.5% Learning Outcome: 1.4 Convert between decimal numbers and fractions. 8) Write 0.2 as a fraction in lowest terms and as a percentage. 1. 1/50; 2% 2. 1/5; 20% 3. 2/100; 0.2% 4. 1/500; 0.002% Answer: 2 Explanation: Write 2 tenths as 2/10 and reduce to 1/5. Move the decimal point 2 places to the right yielding 20% Learning Outcome: 1.4 Convert between decimal numbers and fractions. 9) Write 0.49 as a fraction in lowest terms and as a percentage. 1. 49/100; 49% 2. 7/15; 49% 3. 49/100; 4.9% 4. ½; 4.9% Answer: 1 Explanation: Write 0.49 as 49/100 which cannot be reduced further. Move the decimal point 2 places to the right to yield 49% Learning Outcome: 1.4 Convert between decimal numbers and fractions. 2 Copyright © 2022 Pearson Education, Inc.

10) Write 0.75 as a fraction in lowest terms and as a percentage. 1. 75/100; 75% 2. 15/20; 7.5% 3. 15/20; 75% 4. ¾; 75% Answer: 4 Explanation: Write 0.75 as 75/100 and reduce to ¾. Move the decimal point 2 places to the right to yield 75% Learning Outcome: 1.4 Convert between decimal numbers and fractions. 11) Write 0.06 as a fraction in lowest terms and as a percentage. 1. 3/50; 60% 2. 6/10; 6% 3. 3/50; 6% 4. 3/5; 6% Answer: 3 Explanation: Write 0.06 as 6/100 and reduce to 3/50. Move the decimal point 2 places to the right to yield 6%. Learning Outcome: 1.4 Convert between decimal numbers and fractions. 12) Write 55% as a decimal number and a proper fraction in lowest terms. 1. 5.5; 55/100 2. 0.055; 55/1000 3. 0.55; 11/20 4. 0.0055; 11/200 Answer: 3 Explanation: Move the decimal 2 places to the left or 0.55, place 55 over 100 and reduce to 11/20 Learning Outcome: 1.7 Write percentages as decimal numbers and fractions. 13) Write 72% as a decimal number and a proper fraction in lowest terms. 1. 7.2; 72/1000 2. 7.2; 72/100 3. 0.72; 36/50 4. 0.72; 18/25 Answer: 4 Explanation: Move the decimal 2 places to the left or 0.72. Place 72 over 100 and reduce to 18/25 Learning Outcome: 1.7 Write percentages as decimal numbers and fractions. 14) Write 0.6% as a decimal number and a proper fraction in lowest terms. 1. 3/50; 0.06 2. 6/100; 0.60 3. 1/17; 0.06 4. 3/500; 0.006 Answer: 4 Explanation: Move the decimal 2 places to the left or 0.006, place 6 over 1000 and reduce to 3/500 Learning Outcome: 1.7 Write percentages as decimal numbers and fractions. 15) Write 4.5% as a decimal number and a proper fraction in lowest terms. 3 Copyright © 2022 Pearson Education, Inc.

1. 0.45; 45/100 2. 0.045; 9/200 3. 0.0045; 45/10,000 4. 0.045; 45/1,000 Answer: 2 Explanation: Move the decimal 2 places to the left or 0.045, place 45 over 1000 and reduce to 9/200 Learning Outcome: 1.7 Write percentages as decimal numbers and fractions. 16) Write 25% as a decimal number and a proper fraction in lowest terms. 1. 2.5; 1/40 2. 0.025; 5/200 3. 0.25; 1/4 4. 0.25; 25/100 Answer: 3 Explanation: Move the decimal 2 places to the left or 0.25, place 25 over 100 and reduce to 1/4 Learning Outcome: 1.7 Write percentages as decimal numbers and fractions. 17) Write 3/5 as a decimal number and a percent. 1. 0.0166; 1.66% 2. 0.6; 60% 3. 0.15; 15% 4. 0.3; 30% Answer: 2 Explanation: Divide the denominator into the numerator: 3 ÷ 5 = 0.6. Move the decimal point two places to the right yielding 60% Learning Outcome: 1.2 Write percentages as decimal numbers and fractions. 18) Convert 5/8 to a decimal number and a percent. 1. 1.6; 160% 2. 0.4; 40% 3. 0.625; 62.5% 4. 0.45; 45% Answer: 3 Explanation: Dividing the denominator into the numerator: 5 ÷ 8 = 0.625. Move the decimal point two places to the right yielding 62.5% Learning Outcome: 1.2 Write percentages as decimal numbers and fractions. 19) Convert 9/19 to a decimal number rounded off to the nearest tenth, and to a percentage rounded off to the nearest tenth of a percent. 1. 0.5; 47.4% 2. 0.47; 4.8% 3. 0.02; 2.1% 4. 0.4; 47.4% Answer: 1 Explanation: Divide the denominator into the numerator. 9 ÷ 19 = 0.4736… rounded off to 0.5. Move the decimal point two places to the right yielding 47.4% Learning Outcome: 1.2 Changing between fractions,decimals and percents. 4 Copyright © 2022 Pearson Education, Inc.

20) Write 3/5 as a decimal number and a percent. 1. 1.67; 167% 2. 0.6; 60% 3. 0.167; 16.7% 4. 0.06; 6% Answer: 2 Learning Outcome: 1.2 Changing between fractions,decimals and percents. 21) Reduce 36/48 to lowest terms. 1. 12/18 2. 18/24 3. 9/12 4. 3/4 Answer: 4 Explanation: Divide numerator and denominator by 12 yielding 3/4. Learning Outcome: 1.1 Reduce and build fractions into equivalent forms. 22) Reduce 95/100 to lowest terms. 1. 4/5 2. 19/20 3. 24/25 4. 9.5/10 Answer: 2 Explanation: Divide numerator and denominator by 5 yielding 19/20. Learning Outcome: 1.1 Reduce and build fractions into equivalent forms. 23) Reduce 24/36 to lowest terms. 1. 12/18 2. 3/4 3. 2/3 4. 6/9 Answer: 3 Explanation: Divide numerator and denominator by 12 yielding 2/3. Learning Outcome: 1.1 Reduce and build fractions into equivalent forms. 24) Reduce the ratio 18:54 to a fraction in lowest terms. 1. 18/54 2. 1/3 3. 3/4 4. 1/2 Answer: 2 Explanation: Convert the ratio to 18/54 and reduce to 1/3. Learning Outcome: 1.1 Reduce and build fractions into equivalent forms. 25) Reduce the ratio 10:75 to a fraction in lowest terms. 1. 1/7.5 2. 5/15 3. 2/15 4. 1/3 5 Copyright © 2022 Pearson Education, Inc.

Answer: 3 Explanation: Convert the ratio to 10/75 and reduce to 2/15. Learning Outcome: 1.1 Reduce and build fractions into equivalent forms. 26) Reduce the ratio 12:24 to a fraction in lowest terms. 1. 1/3 2. 6/18 3. 2/4 4. 1/2 Answer: 4 Explanation: Convert the ratio to 12/24 and reduce to 1/2. Learning Outcome: 1.1 Reduce and build fractions into equivalent forms. 27) Write 5/8 as an equivalent fraction with 96 in the denominator. 1. 96/154 2. 65/96 3. 60/96 4. 5/96 Answer: 3 Explanation: 5/8 × 12/12 = 60/96 Learning Outcome: 1.1 Reduce and build fractions into equivalent forms. 28) Write 4/5 as an equivalent fraction with 100 in the denominator. 1. 100/80 2. 5/100 3. 75/100 4. 80/100 Answer: 4 Explanation: 4/5 × 20/20 = 80/100 Learning Outcome: 1.1 Reduce and build fractions into equivalent forms. 29) Write 17/20 as an equivalent fraction with 100 in the denominator. 1. 85/100 2. 34/100 3. 4/100 4. 100/85 Answer: 1 Explanation: 17/20 × 5/5 = 85/100 Learning Outcome: 1.1 Reduce and build fractions into equivalent forms. 30) Write 1/5 as an equivalent fraction with 25 in the denominator. 1. 25/5 2. 25/20 3. 5/25 4. 1/25 Answer: 3 Explanation: 1/5 × 5/5 = 5/25 Learning Outcome: 1.1 Reduce and build fractions into equivalent forms. 6 Copyright © 2022 Pearson Education, Inc.

31) Write 3/4 as an equivalent fraction with 100 in the denominator. 1. 75/100 2. 80/100 3. 100/25 4. 100/75 Answer: 1 Explanation: ¾ × 25/25 = 75/100 Learning Outcome: 1.1 Reduce and build fractions into equivalent forms. 32) Round off 6.892489 to the hundredths place. 1. 6.9 2. 6.89 3. 6.8 4. 6.892 Answer: 2 Explanation: The digit following the hundredths place is 2, so leave 6.89 alone Learning Outcome: 1.6 Round decimal numbers to a desired number of decimal places. 33) Round off 17.456 to the tenths place. 1. 17.5 2. 17.4 3. 17.46 4. 17.56 Answer: 1 Explanation: The digits following the tenths place is 5 so add 1 to 4 yielding 17.5 Learning Outcome: 1.6 Round decimal numbers to a desired number of decimal places. 34) Round off 3.5243 to the tenths place. 1. 3.6 2. 3.4 3. 3.5 4. 3.52 Answer: 3 Explanation: The digit following the tenths place is 2 so leave the 5 alone yielding 3.5 Learning Outcome: 1.6 Round decimal numbers to a desired number of decimal places. 35) Round down 9.6723 to the tenths place. 1. 9.7 2. 9.6 3. 9.67 4. 9.72 Answer: 2 Explanation: The digit in the tenths place is 6, delete the remaining digits. Learning Outcome: 1.6 Round decimal numbers to a desired number of decimal places. 36) Round down 4.2894 to the hundredths place. 1. 4.3 2. 4.29 3. 4.28 7 Copyright © 2022 Pearson Education, Inc.

4. 4.2 Answer: 3 Explanation: The digit in the hundredths place is 8, delete the remaining digits. Learning Outcome: 1.6 Round decimal numbers to a desired number of decimal places. 37) Round down 4.0678 to the tenths place. 1. 4.0 2. 4.1 3. 4.06 4. 4.07 Answer: 1 Explanation: The digit in the tenths place is 0, delete the remaining digits. Learning Outcome: 1.6 Round decimal numbers to a desired number of decimal places. 38) Add 4.55 and 0.035. 1. 4.9 2. 4.5035 3. 4.585 4. 4.515 Answer: 3 Explanation: Line up the decimal points and add. Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 39) Add the following decimal numbers: 10.1 + 3.964. 1. 14.064 2. 13.974 3. 13.064 4. 14.974 Answer: 1 Explanation: Line up the decimal points and add. Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 40) Add 4.834 + 3.962 + 1.083. 1. 8.879 2. 9.793 3. 9.879 4. 8.793 Answer: 3 Explanation: Line up the decimal points and add. Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 41) Subtract 1.864 from 3.691. 1. 1.827 2. 1.823 3. 2.827 4. 0.827 Answer: 1 Explanation: Line up the decimal points and subtract. Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 8 Copyright © 2022 Pearson Education, Inc.

42) Subtract 0.068 from 5.543. 1. 4.863 2. 5.475 3. 5.863 4. 5.5362 Answer: 2 Explanation: Line up the decimal points and subtract. Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 43) Subtract 2.4 from 10. 1. 7.6 2. 12.40 3. 9.76 4. 12.4 Answer: 1 Explanation: Line up the decimal points and subtract. Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 44) Solve the following problem: 3.29 × 1.64. Round off the answer to the tenths place. 1. 5.4 2. 5.3 3. 53.4 4. 54.2 Answer: 1 Explanation: 3.29 × 1.64 = 5.3956 then round off to 5.4 Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 45) Multiply 2.87 by 0.064 and round off to the hundredths place. 1. 0.19 2. 0.183 3. 0.1837 4. 0.18 Answer: 4 Explanation: 2.87 × 0.064 = 0.18368 rounded off to the hundredth place is 0.18 Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 46) Multiply 2.4 by 0.5. 1. 1.2 2. 12 3. 0.12 4. 120 Answer: 1 Explanation: 2.4 × 0.5 = 1.2 Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers.

47) Solve the following problem: 0.68 ÷ 0.4. 1. 170 2. 17 3. 1.7 4. 0.17 Answer: 3 Explanation: Move the decimal point one place to the right on each number, then divide 6.8 by 4 = 1.7 Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 48) Divide 8.6 by 0.5. 1. 1.72 2. .172 3. 17.2 4. 172 Answer: 3 Explanation: Move the decimal point one place to the right on each number then divide 86 by 5 = 17.2 Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 49) Divide 8.6 by 0.02. 1. 0.172 2. 4.3 3. 430 4. 0.43 Answer: 3 Explanation: Move the decimal point two places to the right and then divide 860 by 2 = 430 Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 50) Multiply 0.089 by 1,000. 1. 89 2. 8.9 3. 0.89 4. 0.089 Answer: 1 Explanation: Move the decimal point three places to the right Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 51) Multiply 0.84 by 100. 1. 8.4 2. 84 3. 840 4. 0.084 Answer: 2 Explanation: Move the decimal point two places to the right yielding 84. Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 52) Multiply 34.2 by 100. 1. 3.42 10 Copyright © 2022 Pearson Education, Inc.

2. 342 3. 3,420 4. 34,200 Answer: 3 Explanation: Move the decimal point two places to the right yielding 3420 Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 53) Divide 0.89 by 100. 1. 8.9 2. 0.89 3. 0.089 4. 0.0089 Answer: 4 Explanation: Move the decimal point two places to the left yielding 0.0089 Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 54) Divide 1.24 by 10. 1. 0.0124 2. 0.124 3. 12.4 4. 124 Answer: 2 Explanation: Move the decimal point one place to the left yielding 0.124 Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 55) Divide 566.8 by 1,000. 1. 5,668 2. 56.68 3. 5.668 4. 0.5668 Answer: 4 Explanation: Move the decimal point three places to the left. Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 56) Write the numbers 0.289, 0.395, 0.0289, and 0.0395 in order of size from smallest to largest. ________ Answer: 0.0289; 0.0395; 0.289; 0.395 Explanation: Put in a column and line up the decimal points. Learning Outcome: 1.9 Estimate answers. 57) Write the numbers 0.003, 0.034, 0.38, and 0.0003 in order of size from smallest to largest. ________ Answer: 0.0003; 0.003; 0.034; 0.38 Explanation: Place the numbers in a column and line up the decimal points. Learning Outcome: 1.9 Estimate answers. 58) Write the numbers 0.3, 0.4, 0.33, and 0.111 in order of size from smallest to largest. ________ Answer: 0.111; 0.3; 0.33; 0.4 Explanation: Place the numbers in a column and line up the decimal points. 11 Copyright © 2022 Pearson Education, Inc.

Learning Outcome: 1.9 Estimate answers. 59) Which is larger: 0.21 or 0.7? ________ Answer: 0.7 Explanation: 0.7 is larger than 0.21. Learning Outcome: 1.9 Estimate answers. 60) Which is larger: 2.45 or 2.6? ________ Answer: 2.6 Explanation: 2.6 is larger than 2.45. Learning Outcome: 1.9 Estimate answers. 61) Which is largest: 0.3, 0.33, or 0.198? ________ Answer: 0.33 Explanation: 0.33 is larger than both 0.3 and 0.198. Learning Outcome: 1.9 Estimate answers. 62) Add 5 7/8 and 3 1/4. 1. 8 3/4 2. 9 1/8 3. 9 1/4 4. 8 1/4 Answer: 2 Explanation: Convert both denominators to 8 then add 5 7/8 + 3 2/8 = 8 9/8 = 9 1/8 Learning Outcome: 1.2 Add, subtract, multiply, and divide fractions. 63) Add 6 1/2 and 2 3/8. 1. 8 7/8 2. 9 3. 8 12/16 4. 9 1/4 Answer: 1 Explanation: Convert both denominators to 8 then add 6 4/8 + 2 3/8 = 8 7/8 Learning Outcome: 1.2 Add, subtract, multiply, and divide fractions. 64) Add 3 3/4 and 7 1/2. 1. 10 1/4 2. 10 3/4 3. 11 1/2 4. 11 1/4 Answer: 4 Explanation: Convert both denominators to 4 then add: 3 ¾ + 7 2/4 = 10 5/4 or 11 1/4 Learning Outcome: 1.2 Add, subtract, multiply, and divide fractions. 65) Subtract 1 3/4 from 2 3/8. 1. 1 3/8 2. 1 5/8 3. 5/8 4. 1 12 Copyright © 2022 Pearson Education, Inc.

Answer: 3 Explanation: Convert both denominators to 8, then subtract 2 3/8 — 1 6/8= 5/8 Learning Outcome: 1.2 Add, subtract, multiply, and divide fractions. 66) Subtract 1½ from 4 3/4. 1. 4 1/4 2. 3 1/2 3. 2 3/4 4. 3 1/4 Answer: 4 Explanation: Convert both denominators to 4, then subtract 4 ¾ — 1 2/4 = 3 ¼ Learning Outcome: 1.2 Add, subtract, multiply, and divide fractions. 67) Subtract 2 7/8 from 7 1/4. 1. 5 5/8 2. 4 5/8 3. 4 3/8 4. 5 3/8 Answer: 3 Explanation: Convert both denominators to 8 then subtract 7 2/8 — 2 7/8 Learning Outcome: 1.2 Add, subtract, multiply, and divide fractions. 68) Solve the following problem and write the answer in lowest terms: 16/21 × 7/8 × 1/2. 1. 112/336 2. 64/147 3. 1/3 4. 1 109/147 Answer: 3 Explanation: Cancel before multiplying yielding 1/3 Learning Outcome: 1.2 Add, subtract, multiply, and divide fractions. 69) Solve the following problem and write the answer as a mixed number in lowest terms: 7/8 × 3/4 × 3/16. 1. 63/576 2. 7/64 3. 7/256 4. 63/512 Answer: 4 Explanation: Multiply the numerators (7 × 3 × 3) = 63. Multiply the denominators (8 × 4 × 16) = 512 and place the numerator over the denominator yielding 63/512. Learning Outcome: 1.2 Add, subtract, multiply, and divide fractions. 70) Solve the following problem and write the answer in lowest terms: 3/5 × 4/15 × 25/24. 1. 300/1,800 2. 30/180 3. 3/18 4. 1/6 Answer: 4 Explanation: Cancel before multiplying yielding 1/6 Learning Outcome: 1.2 Add, subtract, multiply, and divide fractions. 13 Copyright © 2022 Pearson Education, Inc.

71) Solve the following problem and write the answer as a mixed number in lowest terms: 8/11 ÷ 4/9. 1. 36/99 2. 2/11 3. 1 7/11 4. 1 28/44 Answer: 3 Explanation: Invert the second fraction and multiply (8/11× 9/4 = 18/11) and change to 1 7/11 Learning Outcome: 1.2 Add, subtract, multiply, and divide fractions. 72) Solve the following problem and write the answer in lowest terms: 3/4 ÷ 7/8. 1. 21/32 2. 24/32 3. 6/7 4. 24/28 Answer: 3 Explanation: Invert the second fraction and multiply. Learning Outcome: 1.2 Add, subtract, multiply, and divide fractions. 73) Solve the following problem and write the answer as a whole number or fraction in the lowest terms: 3/200 ÷ 11/300. 1. 9/22 2. 3/7 3. 33/6,000 4. 900/2,200 Answer: 1 Explanation: Invert the second fraction and multiply. Learning Outcome: 1.2 Add, subtract, multiply, and divide fractions. 74) Simplify the following complex fraction: 3/4 / 7/8. 1. 1/2 2. 2/3 3. 3/4 4. 6/7 Answer: 4 Explanation: Write as a division problem: ¾ ÷ 7/8 invert the second fraction and multiply: ¾ × 8/7 = 6/7 Learning Outcome: 1.3 Simplify complex fractions. 75) Simplify the following complex fraction: 4/5 / 8/9. 1. 2/35 2. 9/10 3. 36/40 4. 32/45 Answer: 2 Explanation: Write as a division problem: 4/5 ÷ 8/9, invert the second fraction and multiply. Learning Outcome: 1.3 Simplify complex fractions. 14 Copyright © 2022 Pearson Education, Inc.

76) Simplify the following complex fraction: 1/4 / 1/2. 1. 1/8 2. 1/4 3. 2 4. 1/2 Answer: 4 Explanation: Write as a division problem: 1/4 ÷ 1/2, invert the second fraction and multiply. Learning Outcome: 1.3 Simplify complex fractions. 77) Simplify the following complex fraction and write as a mixed number in lowest terms: 4/5 / 3/4. 1. 1 1/15 2. 3/5 3. 16/15 4. 12/20 Answer: 1 Explanation: Write as a division problem: 4/5 ÷ 3/4, invert the second fraction and multiply. Learning Outcome: 1.3 Simplify complex fractions. 78) Simplify the following complex fraction and write in lowest terms: 1/2 / 3/4. 1. 3/8 2. 4/6 3. 2/3 4. 1 1/3 Answer: 3 Explanation: Write as a division problem: 1/2 ÷ 3/4, invert the second fraction and multiply. Learning Outcome: 1.3 Simplify complex fractions. 79) What is 32% of 25? 1. 800 2. .78 3. 7.8 4. 8 Answer: 4 Explanation: Multiply 0.32 by 25 yielding 8 Learning Outcome: 1.8 Find the percent of a number and the percent of change. 80) What is 20% of 19? 1. 38 2. 3.8 3. 98 4. 0.95 Answer: 2 Explanation: Multiply 0.2 by 19 yielding 3.8 Learning Outcome: 1.8 Find the percent of a number and the percent of change. 81) What is 80% of 110? 1. 88 2. 1.375 15 Copyright © 2022 Pearson Education, Inc.

3. 0.72 4. 8800 Answer: 1 Explanation: Multiply 0.8 by 110 yielding 88 Learning Outcome: 1.8 Find the percent of a number and the percent of change. 82) What is 0.87% of 30? 1. 26.1 2. 0.261 3. 2.9 4. 0.34 Answer: 2 Explanation: Multiply 0.0087 by 30 yielding 0.261 Learning Outcome: 1.8 Find the percent of a number and the percent of change. 83) What is 20% of 50? 1. 0.4 2. 100 3. 10 4. 2.5 Answer: 3 Explanation: Multiply 0.2 by 50 yielding 10 Learning Outcome: 1.8 Find the percent of a number and the percent of change. 84) The client was taking 250 mg of ampicillin every six hours. The doctor increased the dosage to 400 mg every six hours. What percentage of change was made in the dosage? ________% Answer: 60 Explanation: Fraction of change = change in dose/old dose = 150/250 = .6, or 60% increase in dosage. Learning Outcome: 1.8 Find the percent of a number and the percent of change. 85) The client's dosage of Lanoxin (digoxin) was changed from 0.125 mg to 0.5 mg. What percentage was the dosage increased? 1. 0.25% 2. 40% 3. 400% 4. 300% Answer: 4 Explanation: Fraction of change = change in dose/old dose = 0.375/0.125 = 3 0r 300% increase in dosage. Learning Outcome: 1.8 Find the percent of a number and the percent of change. 86) A dosage is changed from 4 mg per day to 6 mg per day. Find the percentage of increase. 1. 150% 2. 67% 3. 50% 4. 33% Answer: 3 Explanation: Fraction of change = change in dose/old dose = 2/4 = .5 or 50% increase in dosage. Learning Outcome: 1.8 Find the percent of a number and the percent of change. 16 Copyright © 2022 Pearson Education, Inc.

87) The old price was $19.95. The sale price is $11.97. What is the percentage discount? 1. 20% 2. 40% 3. 60% 4. 80% Answer: 2 Explanation: Fraction of discount = Change in price/old price = 7.98/19.95 = 0.4 or 40% Learning Outcome: 1.8 Find the percent of a number and the percent of change. 88) The client's dosage of Tenormin (atenolol) is reduced from 75 mg to 60 mg. What is the percentage decrease? 1. 67% 2. 15% 3. 150% 4. 20% Answer: 4 Explanation: Fraction of change = change in dose/old dose = 15/75 = .2 or 20% decrease in dosage. Learning Outcome: 1.8 Find the percent of a number and the percent of change. 89) A dosage is changed from 12 mg per day to 9 mg per day. What is the percentage decrease? 1. 25% 2. 13% 3. 75% 4. 33% Answer: 1 Explanation: Fraction of change = change in dose/old dose = 3/12 = .25 or 25% decrease in dosage. Learning Outcome: 1.8 Find the percent of a number and the percent of change. 90) When rounding down to the tenths place, the number 5.34 rounds to: 1. 5.30 2. 5.3 3. 5.4 4. 5 Answer: 2 Explanation: When rounding down, add 0 to the tenths-place digit and delete the remaining digits. Learning Outcome: 1.6 Round decimal numbers to a desired number of decimal places. 91) When rounding up to the tenths place, the number 5.34 rounds to: 1. 5.30 2. 5.3 3. 5.4 4. 5 Answer: 3 Explanation: When rounding up, add 1 to the tenths-place digit and delete the remaining digits. Learning Outcome: 1.6 Round decimal numbers to a desired number of decimal places. 17 Copyright © 2022 Pearson Education, Inc.

92) Which number is larger, 0.60 or 0.45? 1. 0.60 2. 0.45 Answer: 1 Explanation: Because 60 hundredths is larger than 45 hundredths, 0.60 is larger than 0.45. Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 93) 2/3 expressed as a percent rounded off to the nearest whole percent is: 1. 65% 2. 67% 3. 66% 4. 70% Answer: 2 Explanation: Divide the numerator by the denominator, multiply by 100, and round to the whole number. Learning Outcome: 1.8 Find the percent of a number and the percent of change. 94) A patient who weighed 180 lbs. has lost 25 lbs. over the last three months. What is the percentage of weight lost? 1. 13.9% 2. 13.8% 3. 1.37% 4. 0.14% Answer: 1 Explanation: Divide the numerator by the denominator to determine the percentage, multiply by 100, and round to the whole. Learning Outcome: 1.8 Find the percent of a number and the percent of change. 95) Mr. Grassie has had made lifestyle modifications and has been able to have his metformin (Glucophage) decreased from 1,000 mg per day to 500 mg per day. What is the percentage of the decrease of the medication dosage? 1. 30% 2. 25% 3. 50% 4. 75% Answer: 3 Explanation: Divide the numerator by the denominator to determine the percentage. If expressing in terms of percent, the answer would be multiplied by 100. Learning Outcome: 1.8 Find the percent of a number and the percent of change. 96) Mrs. Macron has been ordered 0.125 mg of digoxin. Her previous dose of digoxin was 0.25 mg. Has her dose of digoxin been increased or decreased? 1. Increased 2. Decreased Answer: 2 Explanation: 0.25 is larger than 0.125. Learning Outcome: 1.5 Add, subtract, multiply, and divide decimal numbers. 18 Copyright © 2022 Pearson Education, Inc.

97) Put the following numbers in order from smallest to largest: 3/4, 1/3, 0.25, 0.67, 7/8, 0.45 Answer: 0.25, 1/3, 0.45, 0.67, 3/4, 7/8 Explanation: Order from smallest to largest. Learning Outcome: 1.4 Convert between decimal numbers and fractions. 98) Write 3.75 as a mixed number and as an improper fraction. Answer: 3 3/4 and 15/4 Explanation: 3.75 reduced to lowest terms is 3 3/4, as an improper fraction 15/4. Learning Outcome: 1.1 Reduce and build fractions into equivalent forms. 99) Write the following numbers in a column with the decimal points lined up. Add the numbers and round to the hundredth decimal place. 0.124, 0.363, 0.785, 0.335 Answer: Total: 1.61 Explanation: Total of numbers is 1.607, rounded to the nearest hundredth decimal place is 1.61. Learning Outcome: 1.5, 1.6 Add, subtract, multiply, and divide decimal numbers; round decimal numbers to a desired number of decimal places. 100) Convert the fractions to decimals and add them. Round to the hundredth decimal place. Show your work. 4/5, 6/8, 1/3, 8/11, 5/16 Answer: 4/5 = 0.8 6/8 = 0.75 1/3 = 0.33 8/11 = 0.73 5/16 = 0.31 Total = 2.92 Explanation: Total of numbers is 2.9197, rounded to the hundredth decimal place answer is 2.92. Learning Outcome: 1.4, 1.5 Convert between decimal numbers and fractions; add, subtract, multiply and divide decimal numbers. 101) Simplify and write the answer in decimal form. Round your answer to the nearest hundredth. 0.78 ÷ 3/4 Answer: 1.04 Explanation: 0.78 ÷ 0.75 = 1.04. Learning Outcome: 1.4, 1.5, 1.6 Convert between decimal number and fractions; add, subtract, multiply, and divide decimal numbers; round decimal numbers to a desired number of decimal places. 102) Simplify and write the answer in decimal form. Round your answer to the nearest tenth. 15 × 3/8 ÷ 1/4 Answer: 22.5 15 × 0.375 ÷ 0.25 = 22.5. Explanation: 15 × (3/8 = 0.375) ÷ (1/4 = 0.25) Learning Outcome: 1.4, 1.5, 1.6 Convert between decimal number and fractions; add, subtract, multiply, and divide decimal numbers; round decimal numbers to a desired number of decimal places. 19 Copyright © 2022 Pearson Education, Inc.

Medical Dosage Calculations, Updated 11e (Giangrasso) Chapter 2 Safe and Accurate Medication Administration 1)

Read the label and find the following information: Strength of the drug ________ mg per tablet Answer: 2.5 Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information. 2)

Read the label and find the following information: Strength of the drug ________ mg/5 mL Answer: 25 Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information.

Read the label and find the following information: Strength of the drug ________ mg per tablet Answer: 100 Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information. 4)

Read the label and find the following information: Strength of the drug ________ mg per mL Answer: 1 Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information.

5) A physician's order sheet contains the following entry: Biaxin (clarithromycin) 500 mg p.o. q.12h. How much of the drug will be administered per dose? ________ mg Answer: 500 Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information. 6) A physician's order sheet contains the following entry: Trandate (labetalol hydrochloride) 20 mg IV STAT and repeat q.10 minutes as needed to max of 300 mg. How much of the drug will be administered per dose? ________ mg Answer: 20 Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information. 7) A physician's order sheet contains the following entry: Lanoxin (digoxin) 125 mcg p.o. daily. How much of the drug will be administered per dose? ________ micrograms Answer: 125 Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information. 8) A physician's order sheet contains the following entry: Paral (paraldehyde) 5 mg p.r. stat. How much of the drug will be administered per dose? ________ mg Answer: 5 Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information.

Figure C1 — Mar Review the information provided in the figure. What medication is given more than once per day? 1. Lanoxin 2. Lasix 3. K-dur 4. Reglan Answer: 4 Explanation: Only Reglan is ordered to be, and has been, administered more than once per day. Learning Outcome: 2.7 Identify and interpret the components of a Drug Prescription, Physician's Order, and Medication Administration Record.

10)

Figure C1 — Mar Review the information provided in the figure. What medication was given at 8:00 a.m.? 1. Lanoxin 2. Lasix 3. K-dur 4. Reglan Answer: 2 Explanation: Lasix was administered at 0800 as indicated in the column titled "hours" on 9/10, 9/11, and 9/12. Learning Outcome: 2.7 Identify and interpret the components of a Drug Prescription, Physician's Order, and Medication Administration Record.

11)

Figure C1 — Mar Review the information provided in the figure. What medication is administered intravenously? 1. Lanoxin 2. Lasix 3. K-dur 4. Reglan Answer: 2 Explanation: Only Lasix is ordered for IV administration. The other medications are ordered for oral administration. Learning Outcome: 2.7 Identify and interpret the components of a Drug Prescription, Physician's Order, and Medication Administration Record.

12)

Figure C1 — Mar Review the information provided in the figure. How many doses of Reglan has the client received? 1. 1 2. 2 3. 3 4. 4 Answer: 3 Explanation: The client has received three doses of Reglan administered on 9/12. While four doses are ordered per day, the 0900 dose was not given and is most likely due to the order being received. Learning Outcome: 2.7 Identify and interpret the components of a Drug Prescription, Physician's Order, and Medication Administration Record.

13)

Figure C1 — Mar Review the information provided in the figure. What medication was administered immediately? 1. Lanoxin 2. Lasix 3. K-dur 4. Reglan Answer: 2 Explanation: Lasix was ordered for STAT, or immediate, administration and then to be given daily after the STAT dose. Learning Outcome: 2.7 Identify and interpret the components of a Drug Prescription, Physician's Order, and Medication Administration Record.

14)

Read the MAR in the table and answer the following question. How many doses of ampicillin has the patient received? Answer: 17 Learning Outcome: 2.7 Identify and interpret the components of a Drug Prescription, Physician's Order, and Medication Administration Record. 15)

Read the table and find the following information: How many doses of Epogen has the patient received? Answer: 2 Learning Outcome: 2.7 Identify and interpret the components of a Drug Prescription, Physician's Order, and Medication Administration Record.

16)

Read the table and find the following information: How many doses of Coumadin has the patient received? Answer: 5 Learning Outcome: 2.7 Identify and interpret the components of a Drug Prescription, Physician's Order, and Medication Administration Record. 17)

Read the package insert in the figure and answer the following: What is the initial recommended maximum adult daily dose of the drug? ________ mg Answer: 100 Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information.

18)

Read the package insert in the figure and answer the following: What is the maximum dosage? ________ mg Answer: 200 Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information.

19)

Read the package insert in the figure, and answer the following: What is the maximum daily dose? ________ mg Answer: 4 Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information.

20) The physician orders a medication to be administered q8h. The first dose is given at 6:00 a.m. What times will this medication be given throughout the day in military time? 1. 0600h - 1400h - 2200h 2. 0600h - 1300h - 2200h 3. 0800h - 1800h - 2400h 4. 0200h - 1000h - 1800h Answer: 1 Explanation: The medication was administered at 06:00 a.m., which is 0600h in military time. Adding 8 hours to 0600h would be 0600h + 0800h = 1400h in military time. The next dose would be given 8 hours later or 1400h + 0800h = 2200h. The times of administration are 0600h - 1400h 2200h. Learning Outcome: 2.7 Identify and interpret the components of a Drug Prescription, Physician's Order, and Medication Administration Record. 21) A patient is to receive a medication q.8h. The first dose was administered at 10:00 a.m. What is the time of the next dose in military time? 1. 0600h 2. 1800h 3. 1400h 4. 1600h Answer: 2 Explanation: 10 a.m. and 8 hours = 6 p.m., written in military time is 1800h. Learning Outcome: 2.7 Identify and interpret the components of a Drug Prescription, Physician's Order, and Medication Administration Record. 22) A patient is to receive a medication every twelve hours. The first dose was administered at 2100h. At what time will the next dose be administered (expressed as standard time)? ________ a.m. on the next day. Answer: 9 Learning Outcome: 2.7 Identify and interpret the components of a Drug Prescription, Physician's Order, and Medication Administration Record. 23) The client receives nimodipine at 2200h and is to receive the next dose in four hours. At what time, written as standard time, will the next dose be administered? 1. 1:00 a.m. 2. 2:00 a.m. 3. 4:00 a.m. 4. 4:00 p.m. Answer: 2 Explanation: The medication was administered at 2200h which is 10:00 p.m. Four hours later would be 02:00 a.m. Learning Outcome: 2.7 Identify and interpret the components of a Drug Prescription, Physician's Order, and Medication Administration Record.

24) If an IV starts at 1800 hours and lasts for 12 hours, at what time will it finish? (Express in standard time.) 1. 8 a.m. 2. 8 p.m. 3. 6 a.m. 4. 6 p.m. Answer: 3 Explanation: 1800h is 6 p.m. 12 hours later is 6 a.m. Learning Outcome: 2.7 Identify and interpret the components of a Drug Prescription, Physician's Order, and Medication Administration Record. 25) Which of the following is not one of the six rights of medication administration? 1. Drug 2. Route 3. Pharmacy 4. Documentation Answer: 3 Explanation: The six rights of medication administration include right drug, dose, route and form, time, client and documentation. Learning Outcome: 2.1 Describe the six "rights" of safe medication administration. 26) The standard adult dosage for each drug is determined by: 1. the prescriber 2. the manufacturer 3. the hospital formulary 4. the pharmacist Answer: 2 Explanation: The standard adult dosage for each drug is determined by its manufacturer. Learning Outcome: 2.1 Describe the six "rights" of safe medication administration. 27) "Right" documentation includes the name, dosage, route, and time of administration. When should you sign your initials on the medication administration record? 1. Immediately before the dose is given, when in the patient room 2. Immediately after the dose is given 3. Immediately before the dose is given, in the medication room 4. Within one hour after administering the medication Answer: 2 Explanation: Initials should be signed on the medication administration record immediately, but never before the dose is administered. Learning Outcome: 2.1 Describe the six "rights" of safe medication administration.

28) What is the trade name of the following medication?

1. Biaxin 2. Clarithromycin 3. AbbVie 4. Granules Answer: 1 Explanation: Trade names of medications will have the trademark symbol beside it OR have the first letter of the name in an uppercase letter. Learning Outcome: 2.5 Compare the trade and generic names of drugs.

29) What is the generic name of the following medication?

1. Lexapro 2. escitalopram oxalate 3. Lundbeck 4. oxalate Answer: 2 Explanation: Generic medication names will begin with a lowercase letter. Learning Outcome: 2.5 Compare the trade and generic names of drugs.

30) Using the following image, how many times will you instruct the patient to take the medication?

1. Once per day 2. Twice per day 3. Three times per day 4. Weekly Answer: 3 Explanation: The prescription indicates a frequency of t.i.d = three times per day. Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information.

31) Using the image below: 1. The metformin HCl is given ________ times per day. 2. 0.125 mg of ________ is to be given daily. 3. Reglan is to be given 30 minutes ________ meals and at bedtime. 4. The Duragesic film is to be removed in ________ hours.

Answer: 1. Twice 2. Digoxin 3. Before 4. 72 Explanation: 1. The order reads b.i.d. = twice per day. 2. As written on the MAR 3. As written on the MAR 4. As written on the MAR Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information. 32) The physician orders Morphine sulfate 5 mg q4h prn for pain. What is missing from this order? 1. Route 2. Frequency 3. Dose 4. Reason Answer: 1 Explanation: A medication order must include the name of the medication, the dose, the route, the frequency of administration, and the reason for the medication. Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information. 33) The physician's order reads: Timoptic (timolol maleate) 0.5% ophthalmic solution 1 drop to right eye. What information is missing from the order? 37 Copyright © 2022 Pearson Education, Inc.

1. Route 2. Dose 3. Frequency 4. Reason Answer: 3 Explanation: A medication order must include the name of the medication, the dose, the route, the frequency of administration, and the reason for the medication. Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information. 34) The doctor's order from May 01, 2050, reads: Morphine sulfate 5 mg subcutaneously q3h prn for pain. Expires: May 3, 2050. You administer the first dose on May 02, 2050, at 1455hrs. Fill in the MAR below.

Answer:

Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information.

35) The doctor's order from March 3, 2050, reads: metformin 500 mg t.i.d. p.o. You administer the doses at 0700 and 1500 on March 5, 2050. The order expires one week after it was initially written. Fill in the MAR below.

Answer:

Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information.

36) Using the package insert found in the image. Answer the questions below:

1. What is the trade name of the medication? 2. What is the generic name of the medication? 3. What illnesses is the medication used for? 4. What is the standard dose of the medication? 5. What medication should this medication be combined with? Answer: 1. Altima 2. pemetrexed disodium 3. Non-small cell lung cancer and mesothelioma 4. 500 mg/m2 on day 1 of each 21-day cycle 5. cisplastin Learning Outcome: 2.8 Interpret information found on drug labels and in prescribing information.

37) Complete the table by filling in the shaded areas.

Answer:

Learning Outcome: 2.4 Identify common abbreviations used in medication administration.

38) Complete the table by filling in the shaded areas.

Answer:

Learning Outcome: 2.4 Identify common abbreviations used in medication administration. Medical Dosage Calculations, Updated 11e (Giangrasso) Chapter 3 Dimensional Analysis 1) The client is weighed and measured. He is 6 feet tall. Convert his height to inches. 1. 82 inches 2. 70 inches 3. 60 inches 4. 72 inches Answer: 4 Explanation: There are 12 inches per 1 foot. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to equivalent quantity with another single unit of measurement. 2) The client is having a seizure that lasts for 1 minute and 30 seconds. Convert this to seconds. 1. 60 seconds 2. 90 seconds 3. 120 seconds 4. 150 seconds Answer: 2 42 Copyright © 2022 Pearson Education, Inc.

Explanation: 1 minute per 60 seconds + 30 seconds = 90 seconds. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to equivalent quantity with another single unit of measurement. 3) The client walks up and down the hall three times. The hall is 90 ft. How many feet did the client walk? 1. 90 feet 2. 180 feet 3. 270 feet 4. 360 feet Answer: 3 Explanation: The client walked 90ft. 3 times or 30 × 3 = 90 yards. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to equivalent quantity with another single unit of measurement. 4) The client drinks 48 ounces of water during the shift. How many quarts did the client drink? 1. 1 2. 1.5 3. 2 4. 3 Answer: 2 Explanation: There are 32 ounces per quart. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to equivalent quantity with another single unit of measurement.

5) An infant weighs 144 ounces. Convert this weight to pounds. ________ pounds Standard Text: Answer: 9 Explanation: 1 pound per 16 ounces. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to equivalent quantity with another single unit of measurement. 6) Convert 1800 inches to feet. 1. 100 ft 2. 120 ft 3. 140 ft 4. 150 ft Answer: 4 Explanation: 12 inches per foot. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to equivalent quantity with another single unit of measurement. 7) Convert four days to minutes. 1. 14,400 minutes 2. 5760 minutes 3. 345,600 minutes 4. 96 minutes Answer: 2 Explanation: 24 hours per day; 60 minutes per hour. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to equivalent quantity with another single unit of measurement. 8) Convert 2 1/4 days to an equivalent amount in minutes. 1. 2880 minutes 2. 3120 minutes 3. 3240 minutes 4. 3360 minutes Answer: 3 Explanation: 24 hours per day; 60 minutes per hour. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to equivalent quantity with another single unit of measurement. 9) Convert 3000 seconds to an equivalent amount in hours. 1. 1 1/4 hours 2. 0.83 hours 3. 50 hours 4. 2.1 hours Answer: 2 Explanation: 60 seconds per minute; 60 minutes per hour. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to equivalent quantity with another single unit of measurement. 10) Convert 4800 minutes to an equivalent amount in days. 1. 3 1/3 days 44 Copyright © 2022 Pearson Education, Inc.

2. 21 days 3. 200 days 4. 1/2 day Answer: 1 Explanation: 60 minutes per hour; 24 hours per day. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to equivalent quantity with another single unit of measurement. 11) Convert 18 inches per second to an equivalent rate in feet per second. 1. 1.5 feet per second 2. 0.66 feet per second 3. 216 feet per second 4. 3.0 feet per second Answer: 1 Explanation: 12 inches per foot. Learning Outcome: 3.5 Convert a quantity expressed as a rate to another rate. 12) Convert 0.25 feet/second to an equivalent rate in feet per minute. 1. 240 feet per minute 2. 0.004 feet per minute 3. 0.4 feet per minute 4. 15 feet per minute Answer: 4 Explanation: 60 seconds per minute. Learning Outcome: 3.5 Convert a quantity expressed as a rate to another rate. 13) Convert 8 ounces per day to an equivalent rate in pounds per day. 1. 1/4 pound per day 2. 1/2 pound per day 3. 128 pounds per day 4. 2 pounds per day Answer: 2 Explanation: 16 ounces per 1 pound. Learning Outcome: 3.5 Convert a quantity expressed as a rate to another rate. 14) Convert 0.75 pounds per minute to an equivalent rate in pounds per hour. 1. 12 pounds per hour 2. 45 pounds per hour 3. 80 pounds per hour 4. 0.0125 pounds per hour Answer: 2 Explanation: 60 minutes per 1 hour. Learning Outcome: 3.5 Convert a quantity expressed as a rate to another rate.

15) Convert 10 miles per hour to miles per minute. 1. 600 miles per minute 2. 0.17 miles per minute 3. 88 miles per minute 4. 1.46 miles per minute Answer: 2 Explanation: 60 minutes per 1 hour. Learning Outcome: 3.5 Convert a quantity expressed as a rate to another rate. 16) Convert 0.5 inches per second to an equivalent rate in feet per minute. 1. 0.25 feet per minute 2. 2.5 feet per minute 3. 0.1 feet per minute 4. 360 feet per minute Answer: 2 Explanation: 12 inches per 1 foot; 60 seconds per 1 minute. Learning Outcome: 3.5 Convert a quantity expressed as a rate to another rate. 17) Convert 3 feet per day to an equivalent rate in inches per hour. 1. 15 inches per hour 2. 0.114 inches per hour 3. 1.5 inches per hour 4. 13 inches per hour Answer: 3 Explanation: 12 inches per foot; 24 hours per day. Learning Outcome: 3.5 Convert a quantity expressed as a rate to another rate. 18) Convert 1.5 ounces per minute to an equivalent rate in pounds per hour. 1. 1440 pounds per hour 2. 0.4 pounds per hour 3. 5.625 pounds per hour 4. 56.26 pounds per hour Answer: 3 Explanation: 16 ounces per 1 pound; 60 minutes per 1 hour. Learning Outcome: 3.5 Convert a quantity expressed as a rate to another rate. 19) Convert 2.5 feet per hour to an equivalent rate in inches per minute. 1. 12.5 inches per minute 2. 0.5 inches per minute 3. 0.0035 inches per minute 4. 1800 inches per minute Answer: 2 Explanation: 12 inches per 1 foot; 60 minutes per 1 hour. Learning Outcome: 3.5 Convert a quantity expressed as a rate to another rate.

20) Convert 480 inches per second to feet per minute. 1. 96 feet per minute 2. 0.67 feet per minute 3. 345,600 feet per minute 4. 2400 feet per minute Answer: 4 Explanation: 12 inches per 1 foot, 60 seconds per 1 minute. Learning Outcome: 3.5 Convert a quantity expressed as a rate to another rate. 21) If preparing a coffee with 6 parts black coffee and 2 parts cream, how would you express the coffee:milk ratio? 1. 2:6 2. 6:2 3. 4:2 4. 1:3 Answer: 2 Explanation: This is the expression of the ratio of black coffee to cream using a colon as identified in the question. Learning Outcome: 3.3 Construct unit fractions and rations from equivalences. 22) If preparing a coffee with 6 parts black coffee and 2 parts cream, how would you express the coffee:milk ratio in lowest terms? 1. 2:6 2. 1:3 3. 6:2 4. 3:1 Answer: 4 Explanation: This is the expression of the ratio of black coffee to cream in lowest terms, using a colon as identified in the question. Learning Outcome: 3.3 Construct unit fractions and rations from equivalences. 23) How many minutes are in 16 hours? 1. 690 2. 1,920 3. 960 4. 240 Answer: 3 Explanation: 16 hours = x minutes, 1 hour = 60 minutes; 16(60) = 960. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to an equivalent quantity with another single unit of measurement.

24) Each bottle of acetaminophen elixir contains 16 ounces. How many bottles contain 24 ounces? 1. 1 bottle 2. 1.5 bottles 3. 1.5 ounces 4. 0.75 bottles Answer: 2 Explanation: 1 bottle = 16 ounces (x bottle/24 ounces) = 1.5 bottles. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to an equivalent quantity with another unit of measurement. 25) What is the height in inches of a person who is 5 feet 7 inches tall? 1. 68.4 inches 2. 67 inches 3. 60 inches 4. 60.7 inches Answer: 2 Explanation: 1 foot = 12 inches, 5 feet = 60 inches + 7 inches = 67 inches. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to an equivalent quantity with another unit of measurement. 26) Mrs. Arthurs is told today that she needs to increase her water intake by 4 quarts per day. She asks, "How many pints is that?" What is the correct response? 1. 4 pints 2. 6 pints 3. 8 pints 4. 14 pints Answer: 3 Explanation: 2 pints = 1 quart. Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement to an equivalent quantity with another single unit of measurement. 27) Mr. Carlingwood is a bariatric patient who just had a gastric bypass procedure. He is losing weight at a rate of 64 ounces per week. If he continues at this rate of weight loss, how much weight will he lose in 28 days? 1. 16 lbs. 2. 32 lbs. 3. 128 ounces 4. 133 ounces Answer: 1 Explanation: 64 ounces = 4 lbs. × 4 weeks = 16 lbs. Learning Outcome: 3.5 Convert a quantity expressed as a rate to another rate.

28) You are asked to express 46 months as an equivalent amount of time measured in years; what two units of measurement are identified in the problem? Answer: Months, years Explanation: The two units of measurement in the question are months and years. Learning Outcome: 3.2 Identify some common units of measurement and their abbreviations. 29) Using dimensional analysis, convert 6 hours to an equivalent time in seconds. Show your work. Answer: 6 hours = ? seconds. 1 hour = 60 minutes. 6 hours/1 × 60 minutes/1 hour = ? seconds. 360 minutes = ? seconds. 360 minutes/1 × 60 seconds/1 min = ? seconds. = 21,600 seconds. Learning Outcome: 3.6 Solve complex problems using dimensional analysis method. 30) Convert 2 days to an equivalent time in minutes. Show your work. Answer: 1 day = 24 hours. 2 days = x hours. 24/1 = x hours/2. x = 48 hrs. 1 hour = 60 min. 48 hours = x min. 60 min/1 = x min/48 hrs. x = 60(48). x = 2,880. Learning Outcome: 3.6 Solve complex problems using dimensional analysis method.

31) Complete the following table: 3.5 lbs. 42 inches 19 ounces 5.25 years 3 hours

= = = = =

ounces feet, inches lbs., ounces months seconds

3.5 lbs. 42 inches 19 ounces 5.25 years 3 hours

= = = = =

56 ounces 3 feet 6 inches 1 lb. 3 ounces 63 months 10,800 seconds

Answer:

Learning Outcome: 3.4 Convert a quantity expressed with a single unit of measurement with an equivalent quantity with another single unit of measurement. 32) How many eighths equal 5/16? Show your work. Answer: 16x = (5)(8). 16x = 40. x = 40/16. x = 2.5. Learning Outcome: 3.6 Solve complex problems using dimensional analysis method. 33) Using the dimensional analysis, convert 4 ounces per day to an equivalent rate measure in ounces per week. Show your work. Answer: Given rate: 4 oz./day Rate you want to find: ? oz./wk. 4 oz./day = ? oz./wk. 4 oz./day × 7 day/1 wk. = 28 oz./wk. Learning Outcome: 3.6 Solve complex problems using dimensional analysis method. Medical Dosage Calculations, Updated 11e (Giangrasso) Chapter 4 The Household and Metric Systems 1) Convert 3.25 L to an equivalent volume in milliliters. 1. 0.00325 mL 2. 0.325 mL 3. 325 mL 4. 3250 mL Answer: 4 Explanation: Move the decimal point three places to the right. Learning Outcome: 4.3 State the equivalents for the units of volume. 2) Convert 300 mL to an equivalent amount in liters. 1. 0.3 L 50 Copyright © 2022 Pearson Education, Inc.

2. 30 L 3. 0.03 L 4. 3 L Answer: 1 Explanation: Move the decimal point three places to the left. Learning Outcome: 4.3 State the equivalents for the units of volume. 3) Convert 0.75 liters to an equivalent amount in milliliters. 1. 7500 mL 2. 750 mL 3. 7.50 mL 4. 0.00075 mL Answer: 2 Explanation: Move the decimal point three places to the right. Learning Outcome: 4.3 State the equivalents for the units of volume. 4) Convert 4500 mL to an equivalent amount in liters. 1. 45 L 2. 4.5 L 3. 0.45 L 4. 0.045 L Answer: 2 Explanation: Move the decimal point three places to the left. Learning Outcome: 4.3 State the equivalents for the units of volume. 5) Convert 2.6 L to an equivalent amount in milliliters. 1. 0.0026 mL 2. 0.026 mL 3. 260 mL 4. 2600 mL Answer: 4 Explanation: Move the decimal point three places to the right. Learning Outcome: 4.3 State the equivalents for the units of volume. 6) Convert 3.4 kg to an equivalent amount in grams. 1. 0.0034 g 2. 0.034 g 3. 340 g 4. 3400 g Answer: 4 Explanation: Move the decimal point three places to the right. Learning Outcome: 4.4 State the equivalents for the units of weight. 7) Convert 3200 g to an equivalent amount in kilograms. 1. 3.2 kg 2. 32 kg 3. 0.0032 kg 4. 0.032 kg Answer: 1 51 Copyright © 2022 Pearson Education, Inc.

Explanation: Move the decimal point three places to the left. Learning Outcome: 4.4 State the equivalents for the units of weight. 8) Convert 500 mcg to an equivalent amount in milligrams. 1. 500,000 mg 2. 50,000 mg 3. 0.5 mg 4. 0.05 mg Answer: 3 Explanation: Move the decimal point three places to the left. Learning Outcome: 4.4 State the equivalents for the units of weight. 9) Convert 0.04 mg to an equivalent amount in micrograms. 1. 400 mcg 2. 40 mcg 3. 4 mcg 4. 0.4 mcg Answer: 2 Explanation: Move the decimal point three places to the right. Learning Outcome: 4.4 State the equivalents for the units of weight. 10) Convert 4250 milligrams to an equivalent amount in grams. 1. 42.5 g 2. 4.25 g 3. 0.425 g 4. 0.0425 g Answer: 2 Explanation: Move the decimal point three places to the left. Learning Outcome: 4.4 State the equivalents for the units of weight.

11) Convert 25 millimeters to an equivalent length in centimeters. 1. 25 cm 2. 250 cm 3. 2.5 cm 4. 0.25 cm Answer: 3 Explanation: Move the decimal point one place to the left. Learning Outcome: 4.5 State the equivalents for the units of length. 12) Convert 55 centimeters to an equivalent length in millimeters. 1. 550 mm 2. 5500 mm 3. 5.5 mm 4. 0.55 mm Answer: 1 Explanation: Move the decimal point one place to the right. Learning Outcome: 4.5 State the equivalents for the units of length. 13) Convert 2.6 centimeters to an equivalent length in millimeters. 1. 260 mm 2. 26 mm 3. 0.26 mm 4. 0.026 mm Answer: 2 Explanation: Move the decimal point one place to the right. Learning Outcome: 4.5 State the equivalents for the units of length. 14) Convert 0.45 centimeters to an equivalent length in millimeters. 1. 45 mm 2. 4.5 mm 3. 0.45 mm 4. 0.045 mm Answer: 2 Explanation: Move the decimal point one place to the right. Learning Outcome: 4.5 State the equivalents for the units of length. 15) Convert 0.53 millimeters to an equivalent length in centimeters. 1. 0.053 cm 2. 5.3 cm 3. 53 cm 4. 530 cm Answer: 1 Explanation: Move the decimal point one place to the right. Learning Outcome: 4.5 State the equivalents for the units of length.

16) Convert 5 feet to an equivalent length in inches. 1. 0.4 in. 2. 50 in. 3. 60 in. 4. 72 in. Answer: 3 Explanation: 12 inches per 1 foot. Learning Outcome: 4.6 Convert from one unit to another within each of the two systems. 17) Convert 66 inches to an equivalent amount in feet. 1. 6 ft 2. 5.5 ft 3. 792 ft 4. 5.2 ft Answer: 2 Explanation: 12 inches per 1 foot. Learning Outcome: 4.6 Convert from one unit to another within each of the two systems. 18) Convert 64 ounces to an equivalent amount in pounds. 1. 4 lb 2. 8 lb 3. 12 lb 4. 1024 lb Answer: 1 Explanation: 16 ounces per 1 pound. Learning Outcome: 4.6 Convert from one unit to another within each of the two systems. 19) Convert 5 pounds to an equivalent amount in ounces. 1. 50 oz 2. 60 oz 3. 72 oz 4. 80 oz Answer: 4 Explanation: 16 ounces per 1 pound. Learning Outcome: 4.6 Convert from one unit to another within each of the two systems. 20) Convert 2 1/2 pounds to an equivalent weight in ounces. 1. 32 oz 2. 34 oz 3. 36 oz 4. 40 oz Answer: 4 Explanation: 16 ounces per 1 pound. Learning Outcome: 4.6 Convert from one unit to another within each of the two systems.

21) Convert 20 ounces to an equivalent amount in cups. 1. 2.25 cups 2. 2 cups 3. 5 cups 4. 2.5 cups Answer: 4 Explanation: 8 ounces per 1 cup. Learning Outcome: 4.3 State the equivalents for the units of volume. 22) Convert 6 teaspoons to an equivalent amount in tablespoons. 1. 1.5 T 2. 2 T 3. 0.5 T 4. 18 T Answer: 2 Explanation: 3 teaspoons per 1 tablespoon. Learning Outcome: 4.3 State the equivalents for the units of volume. 23) Convert 4 ounces to an equivalent amount in tablespoons. 1. 6 T 2. 8 T 3. 12 T 4. 1.33 T Answer: 2 Explanation: 2 tablespoons per 1 ounce. Learning Outcome: 4.3 State the equivalents for the units of volume. 24) Convert 48 ounces to an equivalent amount in quarts. 1. 2 qt 2. 1.75 qt 3. 1.5 qt 4. 3 qt Answer: 3 Explanation: 32 ounces per 1 quart. Learning Outcome: 4.3 State the equivalents for the units of volume. 25) Convert 2 1/2 quarts to an equivalent amount in pints. 1. 3 pt 2. 4 pt 3. 5 pt 4. 6 pt Answer: 3 Explanation: 2 pints per 1 quart. Learning Outcome: 4.3 State the equivalents for the units of volume.

26) Convert 9 teaspoons to an equivalent amount in ounces. 1. 27 oz 2. 4.5 oz 3. 13.5 oz 4. 1.5 oz Answer: 4 Explanation: 3 teaspoons per 1 tablespoon; 2 tablespoons per 1 ounce. Learning Outcome: 4.3 State the equivalents for the units of volume. 27) Convert 1/4 cup to an equivalent amount in tablespoons. 1. 15 T 2. 10 T 3. 8 T 4. 4 T Answer: 4 Explanation: 8 ounces per 1 cup; 1/4 cup = 8 ÷ 1/4 = 2 ounces; 2 tablespoons per 1 ounce; 2 × 2 = 4 tablespoons in 1/4 cup. Learning Outcome: 4.3 State the equivalents for the units of volume. 28) Convert 8 tablespoons to an equivalent amount in cups. 1. 1/4 cups 2. 1/2 cups 3. 3/4 cups 4. 1 cup Answer: 2 Explanation: 2 tablespoons per 1 ounce; 8 ÷ 2 = 4 ounces. 8 ounces per 1 cup; 8 ÷ 4 = 1/2 cup. Learning Outcome: 4.3 State the equivalents for the units of volume. 29) Convert 1/2 ounce to an equivalent amount in teaspoons. 1. 1 t 2. 3 t 3. 4 t 4. 6 t Answer: 2 Explanation: 1 ounce per 2 tablespoons; 3 teaspoons per 1 tablespoon. Learning Outcome: 4.3 State the equivalents for the units of volume. 30) Convert 1 quart to an equivalent amount in cups. 1. 10 cups 2. 12 cups 3. 4 cups 4. 8 cups Answer: 3 Explanation: 1 quart per 2 pints; 1 pint per 2 cups Learning Outcome: 4.3 State the equivalents for the units of volume.

31) The base units of measurement for weight in the metric system are: 1. meters 2. grams 3. milligrams 4. ounces Answer: 2 Explanation: Gram is the base unit of measurement for weight. Learning Outcome: 4.1 Identify the units of measurement in the household and metric systems. 32) Which of the following is not an acceptable device to use to administer medications in household units of measurement? 1. dropper 2. medicine cup 3. syringe 4. teaspoon Answer: 4 Explanation: Only devices calibrated in household units should be used to administer medications prescribed in household units of measurement. Learning Outcome: 4.1 Identify the units of measurement in the household and metric systems. 33) A recipe calls for ¼ cup of melted butter or margarine. How many ounces is this equivalent to? 1. 2 2. 4 3. 6 4. 8 Answer: 1 Explanation: 1 measuring cup = 8 ounces. Learning Outcome: 4.6 Convert from one unit to another within each of the two systems. 34) Drugs in liquid form are measured by: 1. Displacement 2. Weight 3. Volume 4. Area Answer: 3 Explanation: Drugs in liquid form are measured by volume. The volume of a liquid is the amount of space it occupies. Learning Outcome: 4.1 Identify the units of measurement in the household and metric systems.

35) Which is the preferred abbreviation for micrograms? 1. μg 2. mcg 3. mg 4. υg Answer: 2 Explanation: The preferred abbreviation for microgram is mcg. Learning Outcome: 4.2 Recognize the abbreviations for the units of measurement in the two systems. 36) A baby's wet diaper weighs 38 grams. What is the approximate volume of urine if the dry diaper weighs 30 g? 1. 4 ml 2. 4 g 3. 8 g 4. 8 ml Answer: 4 Explanation: 1 gram of urine has a volume of 1 milliliter. Learning Outcome: 4.6 Convert from one unit to another within each of the two systems. 37) The prescriber ordered Mr. Mederes amlodipine besylate 5 mg p.o. daily. How many grams of Norvasc will Mr. Mederes receive in one week?

1. 17.5 g 2. 0.175 g 3. 35 g 4. 0.035 g Answer: 4 Explanation: 5 mg × 7 days = 35 mg = 0.035 g. Learning Outcome: 4.6 Convert from one unit to another within each of the two systems.

38) Fill in the table. 42 g 5,600 ml 3,300 g 14 inches 9.8 km

= = = = =

mg L kg cm m

Answer: 42 g 5,600 ml 3,300 g 14 inches 9.8 km

= = = = =

4,200 mg 5.6 L 3.3 kg 35.6 cm 9,800 m

Explanation: 1g = 1,000 mg. 1,000 ml = 1 L. 1 inch = 2.54 cm. 1 km = 1,000 m. Learning Outcome: 4.3, 4.4, 4.5 State the equivalents for the units of volume, weight, and length. 39) A newborn baby weighs 6 lbs. 7 oz. What is the baby's weight in ounces? Use the dimensional analysis method and show your work. Answer: 6 lb. = ? oz. 6 lb. × ? oz./? lb. = ? oz. 6 lb. × 16 oz./1 lb. = 96 oz. 96 oz. + 7 oz. = 103 oz. Explanation: 1 lb. = 16 oz. Learning Outcome: 4.6 Convert from one unit to another within each of the two systems. 40) A newborn baby weighs 9 lbs. 13 oz. What is the baby's weight in ounces? Use the ratio and proportion method and show your work. Answer: 16 ounces = 1 pound. x ounces = 9 pounds. 16 oz./1 lb. = x oz./9 lb. x = 144 oz. 144 oz. + 13 oz. = 157 oz. Explanation: 1 pound = 16 ounces. Learning Outcome: 4.6 Convert from one unit to another within each of the two systems.

41) The patient is to receive 2,250 milliliters of D5W. Using the dimensional analysis method, what is the volume they are to receive in liters? Show your work. Answer: 2,250 ml = ? L 2,250 ml/1 × ? L/ ? ml = ? L 2,250 ml/1 × 1L/1,000 ml = 2.25 L Explanation: 1 L = 1,000 ml. Learning Outcome: 4.6 Convert from one unit to another within each of the two systems. 42) The order reads 250 mcg of Lanoxin (digoxin) IV x 1 now. Determine how many milligrams you would administer to this patient. Show your work. Answer: 1,000 mcg = 1 mg. 250 mcg = x mg. 1,000 mcg/1 mg = 250 mcg/ x mg. x = 0.25 mg. Explanation: 1,000 mcg = 1 mg. Learning Outcome: 4.6 Convert from one unit to another within each of the two systems. 43) The order reads: clarithromycin suspension 350 mg p.o., b.i.d. for ten days. Using the method of your choice, determine how many grams of clarithromycin will be administered over the ten-day period. Show your work.

Answer: 350 mg = ? g. 350 mg × ? g/? mg = ? g. 350 mg × 1 g/1,000 mg = 0.35 g. 0.35 g × b.i.d. × 10 days = 7 g. Learning Outcome: 4.6 Convert from one unit to another within each of the two systems. Medical Dosage Calculations, Updated 11e (Giangrasso) Chapter 5 Converting from One System of Measurement to Another 60 Copyright © 2022 Pearson Education, Inc.

1) Convert 5.3 kilograms to an equivalent amount in pounds. 1. 2.4 pounds 2. 11.66 pounds 3. 10.6 pounds 4. 2.7 pounds Answer: 2 Explanation: 2.2 pounds per 1 kilogram. Learning Outcome: 5.1 State the equivalent units of weight between the metric and household systems. 2) Convert 8 pounds, 8 ounces to an equivalent amount in kilograms. 1. 17.6 kilograms 2. 4 kilograms 3. 3.86 kilograms 4. 18.7 kilograms Answer: 3 Explanation: 2.2 pounds per 1 kilogram. Learning Outcome: 5.1 State the equivalent units of weight between the metric and household systems. 3) Convert 54 kilograms to an equivalent amount in pounds. 1. 108 pounds 2. 24.54 pounds 3. 118.8 pounds 4. 27 pounds Answer: 3 Explanation: 2.2 pounds per 1 kilogram. Learning Outcome: 5.1 State the equivalent units of weight between the metric and household systems. 4) Convert 45 kilograms to an equivalent amount in pounds. 1. 23 pounds 2. 20.45 pounds 3. 104.2 pounds 4. 99 pounds Answer: 4 Explanation: 2.2 pounds per 1 kilogram. Learning Outcome: 5.1 State the equivalent units of weight between the metric and household systems.

5) Convert 176 pounds to an equivalent amount in kilograms. 1. 80 kilograms 2. 387.2 kilograms 3. 94 kilograms 4. 354 kilograms Answer: 1 Explanation: 2.2 pounds per 1 kilogram. Learning Outcome: 5.1 State the equivalent units of weight between the metric and household systems. 6) Convert 2 1/2 pints to an equivalent amount in milliliters. 1. 600 milliliters 2. 900 milliliters 3. 1000 milliliters 4. 1250 milliliters Answer: 4 Explanation: 1 pint per 500 milliliters. Learning Outcome: 5.2 State the equivalent units of volume between the metric and household systems. 7) Convert 2 teaspoons to an equivalent amount in milliliters. 1. 10 milliliters 2. 30 milliliters 3. 7.5 milliliters 4. 20 milliliters Answer: 1 Explanation: 1 teaspoon per 5 milliliters. Learning Outcome: 5.2 State the equivalent units of volume between the metric and household systems. 8) Convert 135 mL to an equivalent amount in tablespoons. 1. 9 tablespoons 2. 3 tablespoons 3. 0.33 tablespoons 4. 135 tablespoons Answer: 1 Explanation: 1 tablespoon per 15 milliliters. Learning Outcome: 5.2 State the equivalent units of volume between the metric and household systems.

9) Convert 25 mL to an equivalent amount in ounces. 1. 750 ounces 2. 8.3 ounces 3. 5 ounces 4. 0.83 ounce Answer: 4 Explanation: 30 milliliters per 1 ounce. Learning Outcome: 5.2 State the equivalent units of volume between the metric and household systems. 10) Convert 12 ounces to an equivalent volume in milliliters. 1. 6 mL 2. 60 mL 3. 360 mL 4. 3600 mL Answer: 3 Learning Outcome: 5.2 State the equivalent units of volume between the metric and household systems. 11) Convert 10 inches into an equivalent amount in centimeters. 1. 4 centimeters 2. 25 centimeters 3. 0.25 centimeter 4. 40 centimeters Answer: 2 Explanation: 1 inch per 2.5 centimeters. Learning Outcome: 5.3 State the equivalent units of length between the metric and household systems. 12) Convert 75 centimeters to an equivalent amount in inches. 1. 3 inches 2. 187.5 inches 3. 30 inches 4. 34.1 inches Answer: 3 Explanation: 1 inch per 2.5 centimeters. Learning Outcome: 5.3 State the equivalent units of length between the metric and household systems.

13) Convert 4.5 inches to an equivalent amount in centimeters. 1. 1.8 centimeters 2. 11.25 centimeters 3. 2 centimeters 4. 9.9 centimeters Answer: 2 Explanation: 1 inch per 2.5 centimeters. Learning Outcome: 5.3 State the equivalent units of length between the metric and household systems. 14) Convert 35 centimeters to an equivalent amount in inches. 1. 87.5 inches 2. 15.9 inches 3. 77 inches 4. 14 inches Answer: 4 Explanation: 1 inch per 2.5 centimeters. Learning Outcome: 5.3 State the equivalent units of length between the metric and household systems. 15) Convert 20 centimeters to an equivalent amount in inches. 1. 50 inches 2. 9.1 inches 3. 8 inches 4. 44 inches Answer: 3 Explanation: 1 inch per 2.5 centimeters. Learning Outcome: 5.3 State the equivalent units of length between the metric and household systems. 16) Convert 0.5 liters to an equivalent amount in pints. 1. 1 pint 2. 1.5 pints 3. 2 pints 4. 2.5 pints Answer: 1 Explanation: 0.5 liters per 500 milliliters; 500 milliliters per 1 pint. Learning Outcome: 5.2 State the equivalent units of volume between the metric and household systems.

17) Convert 64 ounces into an equivalent amount in pints. 1. 1024 pints 2. 8 pints 3. 4 pints 4. 512 pints Answer: 3 Explanation: 1 pint = 16 ounces. Learning Outcome: 5.2 State the equivalent units of volume between the metric and household systems. 18) Convert 1/2 pint to an equivalent amount in tablespoons. 1. 8 tablespoons 2. 64 tablespoons 3. 4 tablespoons 4. 16 tablespoons Answer: 4 Explanation: 1 pint per 16 ounces; 2 tablespoons per 1 ounce. Learning Outcome: 5.2 State the equivalent units of volume between the metric and household systems. 19) Convert 0.075 liters into an equivalent amount in teaspoons. 1. 150 teaspoons 2. 15 teaspoons 3. 5 teaspoons 4. 0.5 teaspoon Answer: 2 Explanation: 0.075 liter per 75 milliliters; 1 teaspoon per 5 milliliters. Learning Outcome: 5.2 State the equivalent units of volume between the metric and household systems. 20) Convert 12 ounces into an equivalent amount in teaspoons. 1. 36 teaspoons 2. 72 teaspoons 3. 108 teaspoons 4. 12 teaspoons Answer: 2 Explanation: 1 ounce per 2 tablespoons; 1 tablespoon per 3 teaspoons. Learning Outcome: 5.2 State the equivalent units of volume between the metric and household systems.

21) 9 teaspoons is equal to: 1. 35 ml 2. 45 ml 3. 36 ml 4. 54 ml Answer: 2 Explanation: 1 teaspoon = 5 ml. Learning Outcome: 5.2 State the equivalent units of volume between the metric and household systems. 22) 4.5 pints is equal to: 1. 250 L 2. 2,250 ml 3. 275 ml 4. 2,750 ml Answer: 2 Explanation: 1 pint = 500 ml. Learning Outcome: 5.2 State the equivalent units of volume between the metric and household systems. 23) A client who weighs 165 pounds weighs how many kilograms? 1. 75 2. 363 3. 154 4. 72 Answer: 1 Explanation: 1 kg = 2.2 lbs. Learning Outcome: 5.1 State the equivalent units of weight between the metric and household systems. 24) A wound has a diameter of 12.5 cm. What is the diameter of the wound measured in inches? 1. 5 inches 2. 6.5 inches 3. 4 inches 4. 5.5 inches Answer: 1 Explanation: 1 inch = 2.5 cm. Learning Outcome: 5.3 State the equivalent units of measurement between metric and household systems.

25) A patient is 5 feet 8 inches tall and weighs 178 lbs. What is the patient's height in centimeters and weight in kilograms? 1. 169 cm, 81 kg 2. 170 cm, 178 lbs. 3. 170 cm, 81 kg 4. 68 cm, 178 lbs. Answer: 3 Explanation: 1 inch = 2.5 cm; 2.2 lbs. = 1 kg. Learning Outcome: 5.5 Convert a quantity measured in household units to its equivalent measured in metric units. 26) Mrs. Haley is ordered 2 teaspoons of memantine HCL. How many mg of memantine will be administered?

1. 10 mg 2. 5 mg 3. 15 mg 4. 20 mg Answer: 1 Explanation: 1 tsp. = 5 ml, 2 mg/ml = 10 mg. Learning Outcome: 5.5 Convert a quantity measured in household units to its equivalent measured in metric units.

27) Mrs. Haley is ordered 2 teaspoons of memantine HCL. How many ml of memantine will be administered?

1. 5 ml 2. 15 ml 3. 20 ml 4. 10 ml Answer: 4 Explanation: 1 tsp. = 5 ml. Learning Outcome: 5.5 Convert a quantity measured in household units to its equivalent measured in metric units.

28) Complete the following table: 140 lbs. 3 quarts 9t 5T 182 ml

= = = = =

kg L ml ml L

Answer: 140 lbs. 3 quarts 9t 5T 182 ml

= = = = =

64 kg 3L 45 ml 75ml 0.182 L

Learning Outcome: 5.5 Convert a quantity measured in household units to its equivalent measured in metric units. 29) Using dimensional analysis method, convert 6 teaspoons to an equivalent volume measured in milliliters. Show your work. Answer: 6 tsp. = ? ml. 6 t × ? ml/? t = ? ml. 5 ml = 1 t. 6 t × 5 ml/1 t = 30 ml. Learning Outcome: 5.5 Convert a quantity measured in household units to its equivalent measured in metric units. 30) Using the ratio and proportion method solve: A medication cup contains 32 milliliters of solution. How many tablespoons are in the medication cup? Round to the tenths decimal place. Show your work. Answer: 32 ml = x T. 32/ x T = 15 ml/ 1 T. 15x = 32. x = 2.1. Learning Outcome: 5.5 Convert a quantity measured in household units to its equivalent measured in metric units.

31) Using dimensional analysis, convert 118 pounds to kilograms. Round to the nearest whole number. Show your work. Answer: 118 lbs. = ? kg. 118 lb. × ? kg/ ? lb. = ? kg. 118 lb. × 1 kg/ 2.2 lb. = ? kg. 54 kg Learning Outcome: 5.5 Convert a quantity measured in household units to its equivalent measured in metric units. 32) Convert 85 kg to pounds. Round to the nearest whole number. Show your work. Answer: 85 kg = x lb. 85 kg/x lb. = 1 kg/2.2 lb. 1x = 2.2 (85). x = 187 kg. Learning Outcome: 5.5 Convert a quantity measured in household units to its equivalent measured in metric units. 33) Using dimensional analysis convert a length of 50 millimeters to centimeters. Answer: 50 mm = ? cm. ? mm/? cm. 50 mm/1 × 1 cm/10 mm. 5 cm Learning Outcome: 5.5 Convert a quantity measured in household units to its equivalent measured in metric units. Medical Dosage Calculations, Updated 11e (Giangrasso) Chapter 6 Oral Medications 1) The physician writes an order for Atacand 16 mg. Each tablet contains 8 mg. How many tablets would you administer? 1. 1/2 of a tablet 2. 5 tablets 3. 2 tablets 4. 1/5 of a tablet Answer: 3 Explanation: 8 mg per 1 tab; 16 mg per 2 tab. Learning Outcome: 6.1 Use the Formula method to calculate dosages. 2) The physician writes an order for furosemide (Lasix) 120 mg. Each table contains 40 mg. How many tablets would you administer? 1. 3 tablets 70 Copyright © 2022 Pearson Education, Inc.

2. 4 tablets 3. 3 1/2 tablets 4. 5 tablets Answer: 1 Explanation: 40 mg per 1 tablet. Learning Outcome: 6.1 Use the Formula method to calculate dosages. 3) The physician writes an order for meclizine hydrochloride (Antivert) 25 mg. Each tablet contains 12.5 mg. How many tablets would you administer? 1. 1/2 tablet 2. 4 tablets 3. 2 tablets 4. 5 tablets Answer: 3 Explanation: 12.5 mg per 1 tablet. Learning Outcome: 6.1 Use the Formula method to calculate dosages. 4) The physician writes an order for levothyroxine sodium (Synthroid) 75 micrograms. Each table contains 0.025 mg. How many tablets would you administer? 1. 300 tablets 2. 3 1/3 tablets 3. 3 tablets 4. 30 tablets Answer: 3 Explanation: Convert 0.025 mg to 25 micrograms; 25 mcg per 1 tablet. Learning Outcome: 6.1 Use the Formula method to calculate dosages.

5) The physician writes an order for ziprasidone hydrochloride (Geodon) 80 mg. Each tablet contains 20 mg. How many tablets would you administer? 1. 16 tablets 2. 2 1/2 tablets 3. 4 tablets 4. 1/4 tablet Answer: 3 Explanation: 20 mg per 1 tablet. Learning Outcome: 6.1 Use the Formula method to calculate dosages. 6) The physician orders phenytoin (Dilantin) 85 mg. The suspension contains 125 mg in 5 mL. How many mL would you administer? 1. 3.4 mL 2. 7 mL 3. 1 1/3 mL 4. 2 mL Answer: 1 Explanation: 125 mg per 5 mL. Learning Outcome: 6.1 Use the Formula method to calculate dosages. 7) The physician orders digoxin (Lanoxin) 125 micrograms. The elixir contains 0.25 mg per mL. How many mL would you administer? 1. 0.002 mL 2. 0.5 mL 3. 0.02 mL 4. 2 mL Answer: 2 Explanation: Convert 0.25 mg to 250 micrograms. 250 mcg per 1mL. Learning Outcome: 6.1 Use the Formula method to calculate dosages. 8) The physician orders erythromycin ethylsuccinate 280 mg. The suspension contains 400 mg per 5mL. How many mL would you administer? 1. 7 mL 2. 3 mL 3. 3.5 mL 4. 0.7 mL Answer: 3 Explanation: 400 mg per 5 mL Learning Outcome: 6.1 Use the Formula method to calculate dosages.

9) The physician orders 475 mg penicillin v potassium (Pen-VK). The suspension contains 250 mg per 5mL. How many mL would you administer? 1. 0.956 mL 2. 23,750 mL 3. 9.5 mL 4. 1.9 mL Answer: 3 Explanation: 250 mg per 5 mL. Learning Outcome: 6.1 Use the Formula method to calculate dosages. 10) The physician orders methadone 7.5 mg p.o. q.4h. The methadone label reads 5 mg/5mL. How many milliliters would you administer? 1. 1.5 mL 2. 0.3 mL 3. 0.75 mL 4. 7.5 mL Answer: 4 Explanation: 5 mg per 5 mL. Learning Outcome: 6.1 Use the Formula method to calculate dosages. 11) The physician orders magnesium sulfate (epsom salt) 3.2 mEq. The solution contains 0.8 mEq per mL. How many mL would you administer? 1. 0.4 mL 2. 40 mL 3. 4 mL 4. 2.5 mL Answer: 3 Explanation: 0.8mEq per 1 mL. Learning Outcome: 6.4 Calculate doses for medications measured in milliequivalents. 12) The physician orders potassium gluconate (Kaylixir) 45 mEq. The solution contains 20 mEq per 15 mL. How many mL would you administer? 1. 60 mL 2. 2.4 mL 3. 33.75 mL 4. 24 mL Answer: 3 Explanation: 20 mEq per 15 mL. Learning Outcome: 6.4 Calculate doses for medications measured in milliequivalents.

13) The physician orders potassium chloride (Slow-K) 80 mEq. The solution contains 40 mEq per 15 ml. How many mL would you administer? 1. 30 mL 2. 213.3 mL 3. 2.13 mL 4. 300 mL Answer: 1 Explanation: 40 mEq per 15 mL. Learning Outcome: 6.4 Calculate doses for medications measured in milliequivalents. 14) The physician orders potassium chloride 1.25 mEq for a pediatric client. The solution contains 45 mEq per 15 mL. How many mL would you administer? 1. 3.75 mL 2. 0.42 mL 3. 0.38 mL 4. 0.41 mL Answer: 2 Explanation: 45 mEq per 15 mL. Learning Outcome: 6.4 Calculate doses for medications measured in milliequivalents. 15) The physician orders potassium chloride 25 mEq p.o. q.8h. for an adult with hypokalemia. If the recommended adult dose is 10—100 mEq/d p.o. in divided doses, is the prescribed dose in the safe range? ________ Answer: Yes Explanation: Q.8h. is three doses per day. (24 ÷ 8 = 3.) One dose is 25 mEq, given three times per day (25 × 3 = 75 mEq), which is within the recommended 10—100 mEq/d range. Learning Outcome: 6.4 Calculate doses for medications measured in milliequivalents. 16) Using a formula, estimate the body surface area of a person whose height is 24 inches and who weighs 12 pounds. 1. 0.09 m2 2. 0.3 m2 3. 288 m2 4. 16.9 m2 Answer: 2 Explanation: 24 × 12 ÷ 3131 = 0.09 and calculating the square root = 0.3 m2. Learning Outcome: 6.7 Calculate body surface area.

17) Using a formula, estimate the body surface area of a person whose height is 4 feet and who weighs 85 pounds. 1. 1.13 m2 2. 0.32 m2 3. 55.9 m2 4. 1.14 m2 Answer: 4 Explanation: 1 ft = 12 inches; 4 × 12 = 48 inches. 85 lbs × 48 inches ÷ 3131 = 1.3; the square root of 1.3 = 1.14 m2. Learning Outcome: 6.7 Calculate body surface area. 18) Using a formula, estimate the body surface area of a person whose height is 5 feet and who weighs 150 pounds. 1. 2.87 m2 2. 1.7 m2 3. 0.23 m2 4. 0.49 m2 Answer: 2 Explanation: 1 ft = 12 inches; 5 × 12 = 60 inches. 150 lbs × 60 inches ÷ 3131 = 2.87; the square root of 2.87 = 1.7 m2. Learning Outcome: 6.7 Calculate body surface area. 19) Using a formula, estimate the body surface area of a person whose height is 165 centimeters and who weighs 57 kilograms. 1. 0.47 m2 2. 1.55 m2 3. 1.62 m2 4. 0.45 m2 Answer: 3 Explanation: 165 × 57 ÷ 3600 = 2.62; the square root is 1.62 m2. Learning Outcome: 6.7 Calculate body surface area. 20) Using a formula, estimate the body surface area of a person whose height is 5 feet, 2 inches and weighs 275 pounds. 1. 5.44 m2 2. 55.9 m2 3. 2.29 m2 4. 2.33 m2 Answer: 4 Explanation: 1 ft = 12 inches; 5 × 12 = 60 + 2 = 62 inches. 275 lbs × 62 inches ÷ 3131 = 5.45; the square root of 5.45 = 2.33 m2. Learning Outcome: 6.7 Calculate body surface area.

21) Using a formula, estimate the body surface area of a person whose height is 187 centimeters and who weighs 91 kilograms. 1. 2.17 m2 2. 55.9 m2 3. 2.14 m2 4. 4.79 m2 Answer: 1 Explanation: 187 × 91 ÷ 3600 = 4.73; the square root is 2.17 m2. Learning Outcome: 6.7 Calculate body surface area. 22) The physician writes an order for a loading dose of theophylline (Lanophyllin) 5 mg/kg. The client weighs 65 kg. The medication is supplied 150 mg/15 mL. How many mL would you administer? 1. 1.3 mL 2. 32.5 mL 3. 3250 mL 4. 21.7 mL Answer: 2 Explanation: The correct dosage for a 65 kg client = 5 × 65 = 325 mg. Learning Outcome: 6.6 Calculate doses based on body weight. 23) The physician orders palifermin (Kepivance) 60 mcg/kg to be administered daily. The client weighs 35 kg. The medication is supplied 5 mg/mL. How many mL would you administer? 1. 0.42 mL 2. 30 mL 3. 36.5 mL 4. 33.6 mL Answer: 1 Explanation: The correct dose for a 35 kg. client = 35 × 60 = 2100 mcg; 2100 mcg = 2.1 mg. Learning Outcome: 6.6 Calculate doses based on body weight. 24) A patient is to receive a drug at the rate of 10 mg/kg p.o. daily. The patient weighs 93 kg. The strength of the drug is 250 mg/mL. How many milliliters should the patient receive? 1. 0.27 mL 2. 2.7 3. 37.2 mL 4. 3.7 mL Answer: 4 Explanation: The correct dosage for a 93 kg. client = 93 × 10 = 930 mg. 250 mg/1 mL = 930 mg/x; cross multiply yielding 250x = 930; x = 930 ÷ 250 = 3.72 mL. Learning Outcome: 6.6 Calculate doses based on body weight.

25) The physician orders paclitaxel (Taxol) 135 mg/m2 to be administered over 24 hours. The client's body surface area is 1.62 m2. The medication is supplied 6 mg/mL. How many mL would you administer? 1. 1312.2 mL 2. 13.9 mL 3. 36.5 mL 4. 0.14 mL Answer: 3 Explanation: The correct dose for a client with a body surface area of 1.62 m2 = 135 × 1.62 = 218.7 mg. Learning Outcome: 6.8 Calculate doses based on body surface area. 26) The physician orders pemetrexed (Alimta) 500 mg/m2. The client's body surface area is 2.14 m2. The medication is supplied 25 mg/mL. How many mL would you administer? 1. 300,000 mL 2. 42.8 mL 3. 9.3 mL 4. 5.8 mL Answer: 2 Explanation: The correct dose for a client with a body surface area of 2.14 m2 = 500 × 2.14 = 1070 mg. Learning Outcome: 6.8 Calculate doses based on body surface area. 27) A patient is to receive a drug at the rate of 30 mg/m2 p.o. daily. The patient has a BSA of 1.51 m2. The strength of the drug is 125 mg/5 mL. How many milliliters should the patient receive? 1. 1.8 mL 2. 0.8 mL 3. 1,132.5 mL 4. 2.76 mL Answer: 1 Explanation: The correct dose for a client with a body surface area of 1.51 m2 = 30 × 1.51 = 45.3 mg. Learning Outcome: 6.8 Calculate doses based on body surface area. 28) The safe dosage range for acetazolamide (Diamox) is 8—30 mg/kg daily in four equally divided dosages. The client weighs 93 kg. How many mg may you safely administer per dose? 1. 744—2790 mg 2. 2976—11,160 mg 3. 74.4—279 mg 4. 186—697.5 mg Answer: 4 Explanation: 8 × 93 = 744; 30 × 93 = 2790 yielding safe daily range of 744—2790; in four equally divided doses 744 ÷ 4 = 186; 2790 ÷ 4 = 697.5 yielding safe range for each dose of 186—697.5 mg. Learning Outcome: 6.8 Calculate doses based on body surface area. 29) The safe-dosage range for acetaminophen (Tylenol) is 650—3250 mg per day. The client is taking 650 mg as needed for pain every four hours. What is the maximum number of dosages per 77 Copyright © 2022 Pearson Education, Inc.

day the client can take safely? 1. Three doses 2. Five doses 3. Six doses 4. Two doses Answer: 2 Explanation: Maximum daily dose = 3250. Each dose is 650. 3250 ÷ 650 = 5. Learning Outcome: 6.8 Calculate doses based on body surface area. 30) The safe dose range of digoxin (Lanoxin) for preterm neonates is 15—25 mcg/kg/day. What would the safe daily dosage range be for a neonate who weighs 1.6 kg? 1. 24—40 mcg 2. 25 mcg 3. 40 mcg 4. 9.4—15.6 mcg Answer: 1 Explanation: 15 × 1.6 = 24; 25 × 1.6 = 40, safe range 24—40 mcg. Learning Outcome: 6.8 Calculate doses based on body surface area. 31) The pediatric client is ordered procainamide hydrochloride (Pronestyl) 3—6 mg/kg to a maximum of 100 mg/dose. What would be a safe dosage for the client who weighs 35 kg? 1. 105—210 mg 2. 100 mg 3. 5.8 —11.67 mg 4. 8.6 —17.14 mg Answer: 2 Explanation: The maximum safe dose is 100 mg. Learning Outcome: 6.8 Calculate doses based on body surface area. 32) As a maintenance dose for an adult leukemia patient with BSA of 1.55 m2, the prescriber orders Folex (methotrexate) 50 mg p.o. twice a week. If the recommended maintenance dose is 20—30 mg/m2 p.o. twice a week, is the prescribed order safe? ________ Answer: No Explanation: 1.55 m2 × 30 mg/m2 = 46.5 mg (maximum). Learning Outcome: 6.8 Calculate doses based on body surface area. 33) In the order: warfarin sodium (Coumadin) 7.5 mg po daily. The label states 2.5 mg/tab. How many tablets will you administer? 1. 5 mg 2. 2.5 mg 3. Coumadin 4. 3 tab Answer: 4 Explanation: Quantity stands for the amount of drug on hand, the number of tablets, capsules, milliliters, etc. 3 tad = 3 times 2.5 = 7.5. Learning Outcome: 6.1 Use the Formula method to calculate dosages. 34) The patient is to receive 300 mg of Diflucan daily. How many tablets of this drug for the 78 Copyright © 2022 Pearson Education, Inc.

treatment of candida is the patient given each day?

1. 3 tablets 2. 1 tablet 3. 0.5 tablet 4. 2 tablets Answer: 1 Explanation: 1 tablet contains 100 mg. Learning Outcome: 6.2 Calculate simple (one-step) problems for oral medications in solid and liquid form. 35) A patient receives 300 mg of quetiapine (Seroquel) t.i.d. How many doses of the medication will the patient have to receive to receive a total of 0.9 g. 1. 2 2. 4 3. 3 4. 5 Answer: 3 Explanation: 300 mg/dose 0.9 g = 900 mg. Learning Outcome: 6.3 Calculate complex (multi-step) problems for oral medications in solid and liquid form. 36) 40 mEq of potassium chloride is to be added to a 1 L bag of 0.9% NaCl. If the KCL is supplied 20 mEq/10 ml, how many ml of KCL will be added to the normal saline? 1. 40 ml 2. 20 ml 3. 10 ml 4. 5 ml Answer: 2 Explanation: 20 mEq/10 ml = 40 mEq/20 ml. Learning Outcome: 6.4 Calculate doses for medications measured in milliequivalents. 37) The patient is ordered 75 mg of indomethacin q.i.d. Using the drug label below, calculate the number of ml you would administer the patient per dose. 1. 5 ml 2. 10 ml 3. 15 ml 79 Copyright © 2022 Pearson Education, Inc.

4. 25 ml Answer: 3 Explanation: 25 mg/5 ml = 75 mg/15 ml. Learning Outcome: 6.5 Interpret drug labels in order to calculate doses for oral medication. 38) Mr. Bixon is ordered 250 mg of Depakane (valproic acid). Using the label below. Determine how many capsules the patient will receive.

1. 1 2. 2 3. 3 4. 4 Answer: 1 Explanation: 1 capsule = 250 mg. Learning Outcome: 6.2 Calculate simple (one-step) problems for oral medications in solid and liquid form. 39) Mrs. Cook is to receive 10 mg of oxymorphone HCL t.i.d. How many tablets will she receive per dose?

1. 1 2. 2 3. 3 4. 4 Answer: 2 Explanation: 1 tablet = 5 mg. Learning Outcome: 6.2 Calculate simple (one-step) problems for oral medications in solid and liquid form. 40) Fill in the table.

ORDER Desired dose Tegretol 200 mg b.i.d. The strength is 100 mg/5 ml. Cymbalta 30 mg daily. Strength is 30 mg/tablet. Dynapen 250mg q6h. Strength is 62.5 mg/5 ml.

Strength

Form of drug

Administer Amount

Strength

Form of drug

Administer Amount

100mg /5 mL

Solution

10 ml

30 mg/tab

tablet

1 tablet

62.5mg/5 mL

solution

20 ml

Answer: ORDER Desired dose Tegretol 200 mg b.i.d. The strength is 100 mg/5ml. 200 mg Cymbalta 30 mg daily. Strength is 30 mg/tablet. 30 mg Dynapen 250mg q6h. Strength is 62.5 mg/5 ml. 250 mg

Explanation: As completed Learning Outcome: 6.1 Use the Formula method to calculate dosages. 41) Mrs. Rooney is to receive 300 mg q 8h. Determine how many tablets will she receive in one day? Show your work.

Answer: 1.5 tablets D = 300 mg × 3. D = 900 mg. H = 600 mg. Q = 1 tablet. X = tablets. D/H × Q = x. X = 1.5 tablets. Learning Outcome: 6.3, 6.1 Calculate complex (multi-step) problems for oral medications in solid and liquid form; use the Formula method to calculate dosages. 42) Determine how many milliliters the patient will require for a 200-mg dose. Show your work.

Answer: dose = 200 mg. strength = 100 mg/5 mL. Q = 5 ml. Administer ? mL. 200 mg/100 mg × 5 ml = 10 ml. Learning Outcome: 6.3, 6.1 Calculate complex (multi-step) problems for oral medications in solid and liquid form; use the Formula method to calculate dosages. 43) Determine how many Detrol LA capsules the patient will receive each day for a 4-mg dose. Show your work.

Q = 1 tablet. Administer = ? cap. Learning Outcome: 6.3, 6.1 Calculate complex (multi-step) problems for oral medications in solid and liquid form; use the Formula method to calculate dosages. 44) Determine how many milliliters of this antibiotic a patient who weighs 85 lbs would receive per dose if the order reads 2 mg/lb. daily po for 10 days.

Answer: Client = 85 lb Strength = 50 mg / 5 mL Administer = 170 mg. 170 mg × 5 mL/50 mg = 17 ml. Learning Outcome: 6.3, 6.1 Calculate complex (multi-step) problems for oral medications in solid and liquid form; use the Formula method to calculate dosages. 45) Find the BSA of a patient who is 168 cm and weighs 89 kg. Show your work. Answer: BSA = √89 kg × 168 cm/ 3,600. BSA = 2.04 m2. Learning Outcome: 6.7 Calculate body surface area. Medical Dosage Calculations, Updated 11e (Giangrasso) Chapter 7 Syringes 1)

To what number on the scale is the arrow pointing? Answer: 4.4 Explanation: Each light line between the darker lines = 0.2. Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes. 2)

To what number on the scale is the arrow pointing? Answer: 28 Explanation: Each light line between the darker lines = 2. Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes. 3)

To what number on the scale is the arrow pointing? Answer: 1.8 Explanation: Each light line between the two dark lines = 0.1. Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes. 4)

To what number on the scale is the arrow pointing? Answer: 0.27 Explanation: The light lines between the darker lines represents 0.01. Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes.

To what number on the scale is the arrow pointing? Answer: 22 Explanation: Each lighter line = 2. Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes. 6) Indicate with an arrow a reading of 0.3 mL on the scale below.

Answer:

Explanation: Each lightly colored line = 0.1. Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes. 7) Indicate with an arrow a reading of 0.42 mL on the scale below. 87 Copyright © 2022 Pearson Education, Inc.

Answer:

Explanation: Each lightly colored line = 0.01 Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes.

8) Indicate with an arrow a reading of 1.2 mL on the scale below.

Answer:

Explanation: Each lightly colored line = 0.2. Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes.

9) Indicate with an arrow a reading of 2.8 mL on the scale below.

Answer:

Explanation: Each lightly colored line = 0.2 mL. Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes. 10) Indicate with an arrow a reading of 26 mL on the scale below.

Answer:

Explanation: Each lightly colored line = 2 mL. Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes. 11) Order: Humulin R Regular U-100 insulin 36 units subcut. AC breakfast. Indicate on the 90 Copyright © 2022 Pearson Education, Inc.

syringe the dose to be administered.

Answer:

Learning Outcome: 7.5 Measure single insulin dosages. 12) Order: Novolin R Regular U-100 insulin 24 units subcut. stat. Indicate on the syringe the dose to be administered.

Answer:

Learning Outcome: 7.5 Measure single insulin dosages.

13) Order: Humulin L U-100 insulin 67 units subcut. stat. Indicate on the syringe the dose to be administered.

Answer:

Learning Outcome: 7.5 Measure single insulin dosages. 14) Order: Humulin R U-100 insulin 56 units subcut. stat. Indicate on the syringe the dose to be administered.

Answer:

Learning Outcome: 7.5 Measure single insulin dosages.

15) Order: Humulin R U-100 insulin 18 units subcut. stat. Indicate on the syringe the dose to be administered.

Answer:

Learning Outcome: 7.5 Measure single insulin dosages.

16)

Order: Neupogen (filgrastim) 300 mcg subcut. stat. The patient weighs 132 pounds. Read the label in the figure. If the recommended dose is 5 mcg/kg/d, is the prescribed dose safe? If the prescribed dose is safe, how many milliliters will you administer? 1. The prescribed dose is too large. 2. 0.5 mL 3. The prescribed dose is too small. 4. 1 mL Answer: 2 Explanation: Convert pounds to kilograms 132 ÷ 2.2 = 60 kg. 60 kg × 5 mcg/kg = 300 mcg. Per the label 300 mcg/0.5 mL. Learning Outcome: 7.4 Select the most appropriate syringe to administer a prescribed dose.

17)

Order: Neulasta (pegfilgrastim) 6 mg subcut. once per chemotherapy cycle at least 24h after chemotherapy. Read the label in the figure. How many milliliters will you administer? 1. 0.6 mL 2. 0.1 mL 3. 10 mL 4. 1 mL Answer: 1 Explanation: Per the label there is 6 mg in 0.6 mL. Learning Outcome: 7.4 Select the most appropriate syringe to administer a prescribed dose.

18)

Order: Kineret (anakinra) 100 mg subcut once per day. Read the label in the figure. How many milliliters will you administer? 1. 0.67 mL 2. 1 mL 3. 10 mL 4. 6.7 mL Answer: 1 Explanation: 100 mg is ordered, per the label there is 100 mg in 0.67 mL. Learning Outcome: 7.4 Select the most appropriate syringe to administer a prescribed dose.

19) Place an arrow on the most appropriate syringe indicating the dose if the amount to be administered is 0.35 mL.

Answer:

Explanation: The 3 mL syringe is too large for accurately determining 0.35 mL. It is always best to use the smallest syringe possible. The bottom syringe is an insulin syringe, and is calibrated in 97 Copyright © 2022 Pearson Education, Inc.

units, not mL. Learning Outcome: 7.4 Select the most appropriate syringe to administer a prescribed dose. 20) Place an arrow on the most appropriate syringe indicating the dose if the amount to be administered is 25 units of U-100 insulin.

Answer:

Explanation: This syringe is an insulin syringe, while the top syringe is calibrated in mL and not units. Learning Outcome: 7.4 Select the most appropriate syringe to administer a prescribed dose.

21) Place an arrow on the most appropriate syringe indicating the dose if the amount to be administered is 2.4 mL.

Answer:

Explanation: The only syringe large enough to hold 2.4 mL is the 3mL syringe. Learning Outcome: 7.4 Select the most appropriate syringe to administer a prescribed dose. 22) Place an arrow on the most appropriate syringe indicating the dose if the amount to be administered is 0.08 mL. 100 Copyright © 2022 Pearson Education, Inc.

Answer:

Explanation: The third syringe is calibrated in units, not mL, and the 3mL syringe is too large to accurately measure the amount ordered. Learning Outcome: 7.4 Select the most appropriate syringe to administer a prescribed dose. 23) Place an arrow on the most appropriate syringe indicating the dose if the amount to be administered is 0.65 mL.

Answer:

Explanation: Use the smallest syringe possible. Learning Outcome: 7.4 Select the most appropriate syringe to administer a prescribed dose. 24) How many ml of medication are in the syringe below?

1. 4.6 ml 2. 4.8 ml 3. 5 ml 4. 5.4 ml Answer: 4 Explanation: The top ring sits at 5.4 ml of fluid. Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes.

25) How many ml of medication are in the syringe in the image below?

1. 0.56 ml 2. 0.5 ml 3. 0.52 ml 4. 0.6 ml Answer: 3 Explanation: The top ring sits at 0.52 ml on the syringe. Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes. 26) How many ml of medication is in the syringe shown below?

1. 0.36 ml 2. 0.4 ml 3. 0.42 ml 4. 0.38 ml Answer: 1 Explanation: The top ring sits at 0.36 m. Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes.

27) The label below depicts which combinations of insulins?

1. 25% rapid acting and 75% immediate acting 2. 75% intermediate acting and 25% rapid acting 3. 75% immediate acting and 25% rapid acting 4. 25% immediate acting and 75% rapid acting Answer: 2 Explanation: Insulin lispro with a protamine suspension is an intermediate acting insulin and insulin. Learning Outcome: 7.7 Interpret insulin labels.

28) Indicate which arrow is pointing to the 1.6 ml marker on the syringe.

1. blue 2. red 3. green 4. black Answer: 1 Learning Outcome: 7.7 Interpret the calibrations on syringes of various sizes. 29) Ms. Armstrong is a patient who had an open cholecystectomy two days ago. She is now eating a full meal tray and has had her insulin reordered. She is ordered aspart insulin 6 units and 18 units of Humulin N ac breakfast and Humulin N 23 units hs. How many total units of insulin will Ms. Armstrong be given before breakfast? 1. 23 units 2. 18 units 3. 24 units 4. 6 units Answer: 3 Explanation: 6 units of aspart + 18 units Humulin N Learning Outcome: 7.6 Combine two different types of insulin in one syringe.

30) Using the sliding scale orders found in the table below, select the syringe with the correct dose of insulin the patient will be receiving for a glucose of 346 mg/dL. Glucose (mg/dL) < 160 160 mg-220 221-280 281-340 341-400 > 400

Insulin Zero units 2 units 4 units 6 units 8 units Notify MD stat

Answer: 3 Explanation: According to the sliding scale 8 units of insulin would be administered. Learning Outcome: 7.3, 7.5 Interpret the calibrations on syringes of various sizes; measure single insulin dosages.

31) Complete the following table: Fast or Rapid Acting

Intermediate Acting

Long Acting

Fast or Rapid Acting Onset of action 5-15 min.

Intermediate Acting 1-2 hrs.

Long Acting 1-1.5 hrs.

Ultra-Long Acting

Onset of action Peak effect Duration of action Example Answer:

Peak effect Duration of action

Example

Ultra-Long Acting 30-90 min. Slow release into Plateaus over systemic 1-2 hrs. 4-6 hrs. next few hours circulation More than 12 More than 24 4-6 hrs. hours 12-24 hours hours glargine (Lantus) NPH human or aspart (Novolog) insulin (Humulin detemir degludec lispro (Humalog) N) (Levemir) (Tresiba)

Explanation: Chapter 7, page 198 Learning Outcome: 7.7 Interpret insulin labels.

32) Mr. Morris is ordered Humulin N 30 units and aspart insulin 12 units. Indicate on the syringe to which level it would be occupied by the total volume of insulin.

Answer:

Explanation: 30 units + 12 units = 42 units. Learning Outcome: 7.6 Combine two different types of insulin in one syringe.

33) Put the images in the proper order for drawing up two types of insulin.

Answer:

Explanation: Chapter 7, page 205 Learning Outcome: 7.6 Combine two different types of insulin in one syringe. 34) Label the diagram below with the terms: barrel, calibrations, plunger, top ring, hub, shaft, needle, bottom ring and bevel. 110 Copyright © 2022 Pearson Education, Inc.

Answer:

Explanation: Chapter 7, figure 7.2 p. 190 Learning Outcome: 7.1 Identify the parts of a syringe and needle.

35) Indicate with an arrow where you would draw up 23 ml.

Answer:

Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes. 36) Select the appropriate syringe for 43 units of insulin and mark with an arrow where it would be drawn up to.

Answer:

Explanation: This is the safest way to draw up the insulin. The calibrations on the 100-unit syringe are not specific enough. Learning Outcome: 7.3 Interpret the calibrations on syringes of various sizes. Medical Dosage Calculations, Updated 11e (Giangrasso) 113 Copyright © 2022 Pearson Education, Inc.

Chapter 8

Solutions

1) What is the strength (expressed as a percent) of a 200 milliliter solution that contains 10 grams of dextrose? 1. 20% 2. 5% 3. 0.2% 4. 0.5% Answer: 2 Explanation: 10/200 = 5%. Learning Outcome: 8.1 Find the strength of a solution as a ratio, as a fraction, and as a percent. 2) What is the strength (expressed as a percent) of a 500 milliliter solution that contains 35 milliliters of pure iodine? 1. 7% 2. 14.3% 3. 0.07% 4. 5% Answer: 1 Explanation: 35/500 = 7%. Learning Outcome: 8.1 Find the strength of a solution as a ratio, as a fraction, and as a percent. 3) What is the strength (expressed as a percent) of a 800 milliliter solution that contains 120 grams of dextrose? 1. 6.66% 2. 0.066% 3. 15% 4. 1.5% Answer: 3 Explanation: 120/800 = 15%. Learning Outcome: 8.1 Find the strength of a solution as a ratio, as a fraction, and as a percent. 4) What is the strength (expressed as a ratio) of a 30 milliliter solution that contains 300 milligrams of sodium chloride? 1. 300:30 2. 3:30 3. 10:1 4. 1:100 Answer: 4 Explanation: 300 mg = 0.3 g; 0.3/30 = 0.01 = 1:100. Learning Outcome: 8.1 Find the strength of a solution as a ratio, as a fraction, and as a percent.

5) What is the strength (expressed as a ratio in the lowest terms) of an 80 milliliter solution that contains 4 grams of lidocaine? 1. 4:80 2. 20:1 3. 1:20 4. 1:40 Answer: 3 Explanation: 4:80 reduced to lowest form yields 1:20. Learning Outcome: 8.1 Find the strength of a solution as a ratio, as a fraction, and as a percent. 6) What is the strength (expressed as a ratio in the lowest terms) of a 300 milliliter solution that contains 6 grams of epinephrine? 1. 6:300 2. 1:5 3. 1:50 4. 5:1 Answer: 3 Explanation: 6:300 reduced to lowest form yields 1:50. Learning Outcome: 8.1 Find the strength of a solution as a ratio, as a fraction, and as a percent. 7) How many milliliters of a 10% sodium chloride solution contain 8 grams of sodium chloride? 1. 125 mL 2. 80 mL 3. 0.8 mL 4. 800 mL Answer: 2 Explanation: 8 g × 100 mL/0.5 g = 80 mL. Learning Outcome: 8.3 Determine the amount of solution that would contain a given amount of solute. 8) How many milliliters of a 0.5% sodium chloride solution contain 400 milligrams of sodium chloride? 1. 800 mL 2. 80 mL 3. 200 mL 4. 2000 mL Answer: 2 Explanation: 0.4 g × 100 mL/0.5 g = 80 mL. Learning Outcome: 8.3 Determine the amount of solution that would contain a given amount of solute.

9) How many milliliters of a 12.5% glucose solution contain 125 grams of dextrose? 1. 10,000 mL 2. 1562.5 mL 3. 1000 mL 4. 156.2 mL Answer: 3 Explanation: 125 g × 100 mL/12.5 g = 1000 mL. Learning Outcome: 8.3 Determine the amount of solution that would contain a given amount of solute. 10) There are 70 milligrams of iodine in how many milliliters of a 1:4 iodine solution? 1. 0.28 mL 2. 17.5 mL 3. 175 mL 4. 280 mL Answer: 1 Explanation: 0.07 g × 4 mL/1 g = 0.28 mL. Learning Outcome: 8.3 Determine the amount of solution that would contain a given amount of solute. 11) How many milliliters of a 1:30 dextrose solution contain 3 grams of dextrose? 1. 10 mL 2. 100 mL 3. 90 mL 4. 9 mL Answer: 3 Explanation: 3 g × 30 mL/1 g = 90 mL. Learning Outcome: 8.3 Determine the amount of solution that would contain a given amount of solute. 12) How many milliliters of a 1:8 sodium chloride solution contain 300 milligrams of sodium chloride? 1. 24 mL 2. 37.5 mL 3. 2.4 mL 4. 375 mL Answer: 3 Explanation: 0.3 g × 8 mL/1g = 2.4 mL. Learning Outcome: 8.3 Determine the amount of solution that would contain a given amount of solute.

13) How many grams of NaCl are in 500 mL of normal saline? 1. 4.5 g 2. 45 g 3. 55.5 g 4. 5.5 g Answer: 1 Explanation: 500 mL × 0.98 g/100 mL = 4.5 g. Learning Outcome: 8.2 Determine the amount of solute in a given amount of solution. 14) How many grams of NaCl are in 25 mL of 2% sodium chloride solution? 1. 12.5 g 2. 50 g 3. 0.5 g 4. 1250 g Answer: 3 Explanation: 25 mL × 2 g/100 mL = 0.5 g. Learning Outcome: 8.2 Determine the amount of solute in a given amount of solution. 15) How many grams of dextrose are needed to prepare 250 mL of a 12.5% solution? 1. 2000 g 2. 2 g 3. 312.5 g 4. 31.25 g Answer: 4 Explanation: 250 mL × 12.5 g/100 mL = 31.25 g. Learning Outcome: 8.2 Determine the amount of solute in a given amount of solution. 16) How many grams of pure iodine are in 2 liters of a 1:20 iodine solution? 1. 10 g 2. 100 g 3. 40 g 4. 400 g Answer: 2 Explanation: 2000 mL × 1 g/20 mL = 100 g. Learning Outcome: 8.2 Determine the amount of solute in a given amount of solution. 17) How many milligrams of epinephrine are in 100 mL of a 1:10,000 solution? 1. 1 mg 2. 10 mg 3. 0.01 mg 4. 0.1 mg Answer: 2 Explanation: 100 mL × 1 g/10,000 mL = 0.01 g = 10 mg Learning Outcome: 8.2 Determine the amount of solute in a given amount of solution.

18) How many milliliters of chlorine bleach are in 1 liter of a 1:5 bleach solution? 1. 200 mL 2. 20 mL 3. 0.2 mL 4. 2 mL Answer: 1 Explanation: 1000 mL × 1 mL/5 mL = 200 mL. Learning Outcome: 8.2 Determine the amount of solute in a given amount of solution. 19) How many 10-gram tablets are needed to prepare 1 liter of a 1% solution? 1. 1 tablet 2. 0.1 tablet 3. 10 tablets 4. 100 tablets Answer: 1 Explanation: 1000 mL × 1g/100 mL = 10 g = 1 tablet. Learning Outcome: 8.4 Do the calculations necessary to prepare solutions from pure drugs. 20) How many 2-gram tablets are needed to prepare 100 mL of a 6% solution? 1. 3 tablets 2. 5 tablets 3. 30 tablets 4. 6 tablets Answer: 1 Explanation: 100 mL × 6 g/100 mL = 6 g = 3 tablets. Learning Outcome: 8.4 Do the calculations necessary to prepare solutions from pure drugs. 21) How many 60-gram tablets are needed to prepare 2 liters of a 12% solution? 1. 240 tablets 2. 40 tablets 3. 0.24 tablet 4. 4 tablets Answer: 4 Explanation: 2000 mL × 12 g/100 = 240 g = 4 tablets. Learning Outcome: 8.4 Do the calculations necessary to prepare solutions from pure drugs. 22) How many 5-gram tablets would you need to prepare 500 mL of a 1:10 solution? 1. 10 tablets 2. 1000 tablets 3. 1 tablet 4. 100 tablets Answer: 1 Explanation: 500 mL × 1 g/10 mL = 50 g = 10 tablets. Learning Outcome: 8.4 Do the calculations necessary to prepare solutions from pure drugs.

23) How many 10-gram tablets would you need to prepare 750 mL of a 1:5 solution? 1. 150 tablets 2. 15 tablets 3. 37.5 tablets 4. 375 tablets Answer: 2 Explanation: 750 mL × 1 g/5 mL = 150 g = 15 tablets. Learning Outcome: 8.4 Do the calculations necessary to prepare solutions from pure drugs. 24) How many 100-gram tablets are needed to make 1 liter of a 25% solution? 1. 2.5 tablets 2. 40 tablets 3. 4 tablets 4. 25 tablets Answer: 1 Explanation: 1000 mL × 25 g/100 mL = 250 g = 2.5 tablets. Learning Outcome: 8.4 Do the calculations necessary to prepare solutions from pure drugs. 25) From a full-strength hydrogen peroxide solution, how would you prepare 240 mL of two-thirds strength hydrogen peroxide solution for a wound irrigation using normal saline as the diluent? 1. 80 mL of hydrogen peroxide and 160 mL of normal saline 2. 160 mL of hydrogen peroxide and 240 mL of normal saline 3. 160 mL of hydrogen peroxide and 80 mL of normal saline 4. 80 mL of hydrogen peroxide and 240 mL of normal saline Answer: 3 Explanation: 240 mL (sol) × 2 mL (solute)/3 mL (sol) = 160 mL (solute). Learning Outcome: 8.5 Do the calculations necessary to prepare solutions for irrigations, soaks, and nutritional feedings. 26) How many milliliters of full-strength Sustacal are needed to prepare 300 mL of a 3/4-strength Sustacal solution? 1. 225 mL 2. 450 mL 3. 900 mL 4. 950 mL Answer: 1 Explanation: 300 mL (sol) × 3 mL (solute)/4 mL (sol) = 225 mL (solute). Learning Outcome: 8.5 Do the calculations necessary to prepare solutions for irrigations, soaks, and nutritional feedings.

27) How many milliliters of full-strength Sustacal are needed to prepare 240 mL of half-strength Sustacal? 1. 120 mL 2. 240 mL 3. 360 mL 4. 480 mL Answer: 1 Explanation: 1/2 = x/240240 mL (half) × 1 mL (Sustacal)/2 mL (half) = 120 mL (Sustacal). Learning Outcome: 8.5 Do the calculations necessary to prepare solutions for irrigations, soaks, and nutritional feedings. 28) How many ounces of half-strength Sustacal can be made from a 12-ounce can of full-strength Sustacal? 1. 6 oz 2. 24 oz 3. 36 oz 4. 15 oz Answer: 2 Explanation: 12 oz (full) × 2 oz (solution)/1 oz (full) = 24 oz (solution). Learning Outcome: 8.5 Do the calculations necessary to prepare solutions for irrigations, soaks, and nutritional feedings. 29) How many ounces of 3/4-strength Similac could be made from one 12-ounce bottle of Similac? 1. 20 oz 2. 18 oz 3. 16 oz 4. 9 oz Answer: 3 Explanation: 12 oz (full) × 4 oz (sol)/3 oz (full) = 16 oz (solution). Learning Outcome: 8.5 Do the calculations necessary to prepare solutions for irrigations, soaks, and nutritional feedings. 30) How many ounces of 1:10 strength formula could be made from one 24-ounce bottle? 1. 2.4 oz 2. 24 oz 3. 240 oz 4. 2400 oz Answer: 3 Explanation: 24 oz (full) × 10 oz (sol)/1 oz (full) = 240 oz of solution. Learning Outcome: 8.5 Do the calculations necessary to prepare solutions for irrigations, soaks, and nutritional feedings.

31) When making a cup of instant coffee, the coffee granules that are added to the boiling water are the: 1. solute 2. solvent 3. solution 4. supplement Answer: 1 Explanation: The solute is the solid or liquid to be dissolved or diluted. Learning Outcome: 8.1 Find the strength of a solution as a ratio, as a fraction, and as a percent. 32) The mixture of hummingbird food to water is 1 part nectar to 8 parts water. How would this be written as a fraction? 1. 1/6 2. 1/8 3. 8/1 4. 3/1 Answer: 2 Explanation: This indicates a 1/8 strength. Learning Outcome: 8.1 Find the strength of a solution as a ratio, as a fraction, and as a percent. 33) The mixture of hummingbird food to water is 1 part nectar to 8 parts water. How could this be written as a ratio? 1. 2:16 2. 1:16 3. 3:12 4. 1:7 Answer: 1 Explanation: The ratio 1:8 is equal to 2:16. Learning Outcome: 8.1 Find the strength of a solution as a ratio, as a fraction, and as a percent. 34) How many milliliters of a 20% magnesium sulfate solution will contain 20 g of magnesium sulfate? 1. 100 ml 2. 150 ml 3. 200 ml 4. 250 ml Answer: 1 Explanation: 20 g × 100 ml/20 g = 100 ml. Learning Outcome: 8.2 Determine the amount of solute in a given amount of solution.

35) If you were preparing 6 ounces of ½ strength Isosource, how many ounces of Isosource would you require? 1. ½ ounces 2. 2 ounces 3. 3 ounces 4. 6 ounces Answer: 3 Explanation: 6 oz. (solution)/1 × 1 oz. Isosource/2 oz. solution Learning Outcome: 8.5 Do the calculations necessary to prepare solutions for irrigations, soaks, and nutritional feedings. 36) Mr. Foster has been ordered a 500-ml bolus of 0.9% NaCL. How many grams of sodium chloride are in this amount of the solution? 1. 9 2. 18 3. 4.5 4. 36 Answer: 3 Explanation: 9 grams of sodium chloride per 1000 ml of solution Learning Outcome: 8.2 Determine the amount of solute in a given amount of solution.

37) Mrs. Bailey is ordered 15 mg of zoledronic acid solution. Using the label below, determine how many milliliters of the drug contains 15 mg.

1. 18.75 ml 2. 6.25 ml 3. 12.5 ml 4. 12.75 ml Answer: 1 Explanation: 15 mg × 1 ml/0.8 mg Learning Outcome: 8.3 Determine the amount of solution that would contain a given amount of solute.

38) Complete the table below by following the pattern in the first line. The solution contains: 1 part solute in 2 parts solution

Answer: The solution contains: 1 part solute in 2 parts solution 1 part solute in 4 parts solution 3 parts solute in 8 parts solution 2 parts solute in 5 parts solution 9 parts solute in 100 parts solution

The strength of the solution is ratio fraction percent 1:2 1/2 50% 1/4 3:8 2:5 9/100 The strength of the solution is ratio fraction percent 1:2 1/2 50% 1:4 1/4 25% 3:8 3/8 37.5% 2:5 2/5 40% 9:100 9/100 9%

Explanation: Example 8.1 on page 229 Learning Outcome: 8.1 Find the strength of a solution as a ratio, as a fraction, and as a percent. 39) If a patient has a wound irrigation of 150 ml of 2/3 strength hydrogen peroxide solution orders, how much normal saline will you add as the diluent? Use the dimensional analysis method to solve and show your work. Answer: 150 ml = ? ml (peroxide). 150 ml/1 × 2 ml (peroxide)/3 ml (normal saline) 100 ml of peroxide Therefore 50 ml of normal saline Learning Outcome: 8.5 Do the calculations necessary to prepare solutions for irrigations, soaks, and nutritional feedings. 40) How many mL of chlorhexidine are needed to prepare 1,500 ml of 1:8 chlorhexidine solution? 1. 187.5 ml 2. 6.25 ml 3. 12.5 ml 4. 12.75 ml Answer: 1 Learning Outcome: 8.5 Do the calculations necessary to prepare solutions for irrigations, soaks, and nutritional feedings.

41) Express the strength of an iodine solution in the form of a percent if 320 ml of the solution contains 40 ml of iodine. 1. 12.5% 2. 6.25% 3. 125% 4. 1.25% Answer: 1 Learning Outcome: 8.1 Find the strength of a solution as a ratio, as a fraction, and as a percent. 42) Calculate the number of grams of dextrose in 250 ml of a 5% dextrose solution. 1. 18.75 g 2. 6.25 g 3. 12.5 g 4. 12.75 g Answer: 1 Learning Outcome: 8.2 Determine the amount of solute in a given amount of solution. 43) Determine how many g of NaCl are contained in 500 ml of a 0.45% NaCl solution. 1. 18.75 g 2. 2.25 g 3. 12.5 g 4. 12.75 g Answer: 1 Learning Outcome: 8.2 Determine the amount of solute in a given amount of solution. Medical Dosage Calculations, Updated 11e (Giangrasso) Chapter 9 Parenteral Medications 1) Order: Penicillin G procaine 300,000 units IM q 12h. The label on the vial reads 600,000 units per milliliter. How many milliliters will you administer per dose? 1. 2 mL 2. 0.25 mL 3. 0.5 mL 4. 3 mL Answer: 3 Explanation: 600,000 units per 1 mL. Learning Outcome: 9.5 Calculate doses of parenteral medications measured in units. 2) Order: Penicillin G procaine 1.2 million units IM STAT. The label on the vial reads 300,000 units per milliliter. How many milliliters will you administer? 1. 0.25 mL 2. 4 mL 3. 3 mL 4. 0.4 mL Answer: 2 Explanation: 300,000 units per 1 mL. Give 4 mL in two injections. Learning Outcome: 9.5 Calculate doses of parenteral medications measured in units. 125 Copyright © 2022 Pearson Education, Inc.

3) Order: Bumetanide (Bumex) 1 mg IV daily. The label on the vial reads 0.25mg/mL. How many milliliters will you administer per dose? 1. 4 mL 2. 0.4 mL 3. 0.25 mL 4. 2.5 mL Answer: 1 Explanation: 0.25 mg per 1 mL. Learning Outcome: 9.1 Calculate doses for parenteral medications in liquid form.

4) Order: Gentamicin sulfate (Garamycin) 22.5 mg IV q.8h. The label on the vial reads 40mg/mL. How many mL will you administer per dose? 1. 1.78 mL 2. 5.6 mL 3. 0.178 mL 4. 0.56 mL Answer: 4 Explanation: 40 mg per 1 mL. Learning Outcome: 9.1 Calculate doses for parenteral medications in liquid form. 5) Order: Ketoroloac tromethamine (Toradol) 20 mg IV q.12h. The label on the vial reads 15 mg/mL. How many mL will you administer per dose? 1. 1.3 mL 2. 0.13 mL 3. 0.75 mL 4. 7.5 mL Answer: 1 Explanation: 15 mg per 1 mL. Learning Outcome: 9.1 Calculate doses for parenteral medications in liquid form. 6) Order: Claforan (cefotaxime sodium) 750 mg IM q.8h. The directions on the package insert state: "For IM or IV administration reconstitution of the 1g vial with 3 mL yields 300 mg/mL." How many milliliters will you administer per dose? 1. 2.5 mL 2. 0.4 mL 3. 4 mL 4. .025 mL Answer: 1 Explanation: 300 mg per 1 mL. Learning Outcome: 9.4 Choose the most appropriate diluent volume when reconstituting a multiple-strength medication. 7) Order: GlucaGen (glucagon) 1.25 mg stat. The directions on the package state: "For IV administration reconstitution of the 1 mg powder with 1.8 mL yields 1 mg/2 mL." How many mL will you administer per dose? 1. 0.625 mL 2. 6.25 mL 3. 2.5 mL 4. 0.25 mL Answer: 3 Explanation: 1 mg per 2 mL. Learning Outcome: 9.4 Choose the most appropriate diluent volume when reconstituting a multiple-strength medication. 8) Order: Raptiva (efalizumab) 1.1 mg subcutaneously q week. 127 Copyright © 2022 Pearson Education, Inc.

The directions on the package state: "Reconstitution of the single-use vial with 1.3 ml of the supplied sterile water for injection yields 1.5 mg/1.5 mL." How many mL will you administer per dose? 1. 0.9 mL 2. 1.1 mL 3. 1.3 mL 4. 0.8 mL Answer: 2 Explanation: 1.5mg per 1.5 mL. Learning Outcome: 9.4 Choose the most appropriate diluent volume when reconstituting a multiple-strength medication. 9) Order: Ampicillin 165 mg. IV q.8h. The directions on the package state: "Reconstitution of the single-use vial with 4.8 mL yields 250 mg/5 mL." How many milliliters will you administer per dose? 1. 3.3 mL 2. 3.17 mL 3. 8.25 mL 4. 8.6 mL Answer: 1 Explanation: 250 mg per 5 mL. Learning Outcome: 9.4 Choose the most appropriate diluent volume when reconstituting a multiple-strength medication. 10) Order: Methylprednisolone succinate 24 mg IM daily. The package insert of the 40 mg Act-O-Vial states, "Press down on plastic activator to force accompanying 1 mL diluent into the lower compartment." How many milliliters will you administer per dose? 1. 960 mL 2. 1.7 mL 3. 6 mL 4. 0.6 mL Answer: 4 Explanation: 40 mg per 1 mL. Learning Outcome: 9.4 Choose the most appropriate diluent volume when reconstituting a multiple-strength medication.

11) Order: Heparin sodium 5000 units subcutaneously q.8h. The label on the vial reads "10,000 units/mL." How many milliliters will you administer per dose? 1. 0.2 mL 2. 0.5 mL 3. 2 mL 4. 5 mL Answer: 2 Explanation: 10,000 units per 1 mL. Learning Outcome: 9.6 Calculate doses for subcutaneous heparin. 12) Order: Heparin sodium 8000 units subcutaneously q.12h. The label on the vial reads "10,000 units/mL." How many milliliters will you administer per dose? 1. 1.25 mL 2. 0.8 mL 3. 8 mL 4. 0.125 mL Answer: 2 Explanation: 10,000 units per 1 mL. Learning Outcome: 9.6 Calculate doses for subcutaneous heparin. 13) Order: Heparin sodium 10,000 units subcutaneously stat. The label on the vial reads "40,000 units/mL." How many milliliters will you administer per dose? 1. 4 mL 2. 0.4 mL 3. 0.25 mL 4. 2.5 mL Answer: 3 Explanation: 40,000 units per 1 mL. Learning Outcome: 9.6 Calculate doses for subcutaneous heparin. 14) Order: Lovenox (enoxaparin) 30 mg subcut. b.i.d. for 10 days. The label on the vial reads "80 mg/mL." How many milliliters will you administer per dose? 1. 24 mL 2. 3.75 mL 3. 0.38 mL 4. 240 mL Answer: 3 Explanation: 30 mg × 1 mL/80 mg Learning Outcome: 9.6 Calculate doses for subcutaneous heparin. 15) Order: Heparin sodium 670 units IV q.12h. The label on the vial reads "1000 units/mL." How many milliliters will you administer per dose? 1. 1.5 mL 2. 0.67 mL 129 Copyright © 2022 Pearson Education, Inc.

3. 0.067 4. 0.15 Answer: 2 Explanation: 670 units × 1 mL/1000 units Learning Outcome: 9.6 Calculate doses for subcutaneous heparin. 16) Order: Polymixin B sulfate 25,000 units/kg/d in four equally divided doses IM. The label on the vial reads 500,000 units. The manufacturer recommends diluting 500,000 units with 5 ml of sterile water. How many milliliters will you prepare for a single dose if the patient weighs 150 pounds? 1. 4.3 mL 2. 7.5 mL 3. 68.2 mL 4. 0.85 mL Answer: 1 Explanation: 68.2 kg × 25,000 units/kg = 1,705,000 units ÷ 4 = 426,250 units = 4.3 mL. Learning Outcome: 9.5 Calculate doses of parenteral medications measured in units. 17) Order: Pipracil (piperacillin sodium) 8 g/day IV in four divided doses q.6h. The directions on the package insert state, "Add 4 mL suitable diluent (sterile water or 0.9% NaCl) to yield 1g/2.5mL." How many milliliters will you administer per dose? The patient weighs 160 pounds. 1. 3.2 mL 2. 20 mL 3. 0.8 mL 4. 5 mL Answer: 4 Explanation: 8 g/day in four divided doses yields an individual dosage of 8 g ÷ 4 = 2g per dose. Learning Outcome: 9.1 Calculate doses for parenteral medications in liquid form.

18) Order: Eptifibatide (Integrilin)180 mcg/kg IV stat. The manufacturer recommends adding 0.7 mL of sterile water for injection to each 0.75 mg vial, yielding 0.75 mg/mL. The client weighs 185 pounds. How many milliliters will you administer? 1. 44.4 mL 2. 11.4 mL 3. 20.2 mL 4. 202.8 mL Answer: 3 Explanation: 185 lb = 84.1 kg × 180 = 15,136 mcg = 15.1 mg/ 0.75 mg/ml = 20.1 ml Learning Outcome: 9.1 Calculate doses for parenteral medications in liquid form. 19) Order: Vancomycin 40 mg/kg/d divided into q.6h. doses IV. The manufacturer recommends reconstituting 500 mg vial with 10 mL, yielding 50 mg/mL. How many milliliters will you administer for each dose if the client weighs 90 lb? 1. 180 mL 2. 18 mL 3. 8.2 mL 4. 3.4 mL Answer: 3 Explanation: 90/2.2 = 40.9 kg × 40 mg/kg = 1636 mg. Learning Outcome: 9.1 Calculate doses for parenteral medications in liquid form. 20) An order requires 90 mg of a drug to be administered. After reconstitution, the strength of the drug is 20 mg/ml. What is the required volume of solution that will be added to the IV mini bag for administration? 1. 3.5 ml 2. 2.5 ml 3. 4.5 ml 4. 3.75 ml Answer: 3 Explanation: 20 mg/ml and 90 mg required = 4.5 ml Learning Outcome: 9.1 Calculate doses for parenteral medications in liquid form.

21) If you have reconstituted the vial found in the image below with 1.8 ml of diluent, how many ml will you need to administer for a 750-mg dose of Ceftriaxone. Choose the most precise response.

1. 2 ml 2. 2.14 ml 3. 3 ml 4. 3.14 ml Answer: 3 Explanation: 1.8 ml of diluent results in a strength of 250 mg/ml. Learning Outcome: 9.2 Interpret the directions on drug labels and package inserts for reconstituting medications supplied in powdered form.

22) The order reads: hydrocortisone sodium succinate 275 mg IV q6h. Using the Act-o-vial seen in the image, how many ml will you administer?

1. 2.0 2. 2.2 3. 2.7 4. 2.5 Answer: 2 Explanation: 500 mg/4ml, 275 mg/2.2 ml Learning Outcome: 9.2 Interpret the directions on drug labels and package inserts for reconstituting medications supplied in powdered form.

23) The order reads 7,500 units of heparin subcutaneous b.i.d. How many ml of heparin will you administer per dose?

1. 7.5 ml 2. 15 ml 3. 75 ml 4. 1.5 ml Answer: 4 Explanation: 5,000 units/ml = 7,500 units/1.5 ml. Learning Outcome: 9.6 Calculate doses for subcutaneous heparin.

24) The order for a patient with an exacerbation of rheumatoid arthritis is dexamethasone sodium phosphate 4 mg q5days. Using the drug label below, determine how many ml you will administer per dose.

1. 1 ml 2. 2 ml 3. 3 ml 4. 4 ml Answer: 1 Explanation: D/H × Q = X, 4/20 × 5 = 1. Learning Outcome: 9.1 Calculate doses for parenteral medications in liquid form.

25) Mrs. Field has contracted a fungal infection after being on a mission trip in a third world country. Using the drug label shown below, determine how many ml of caspofungin you will administer per dose if the order reads: Cancidas 70 mg IV × 1 on day one and 50 mg daily × 6 days.

1. Initial dose: 12 ml, subsequent doses: 10 ml 2. Initial dose: 10 ml, subsequent doses: 14 ml 3. Initial dose: 10 ml, subsequent doses: 10 ml 4. Initial dose: 14 ml, subsequent doses: 10 ml Answer: 4 Explanation: Label reads that once reconstituted, strength is 5 mg/ml. Learning Outcome: 9.2 Interpret the directions on drug labels and package inserts for reconstituting medications supplied in powdered form.

26) Mr. Wags is prescribed 750,000 units of penicillin G. Because he has renal failure, the amount of fluid that he will receive is limited, and as such, the highest concentration of the medication is required. Using the drug label below, determine which diluent volume you will add to the vial.

1. 75 ml 2. 33 ml 3. 11.5 ml 4. 10 ml Answer: 3 Explanation: The least amount of fluid identified as a possible diluent volume on the label is 11.5 ml. Learning Outcome: 9.4 Choose the most appropriate diluent volume when reconstituting a multiple-strength medication.

27) Using the drug label below, complete the table that follows.

Concentration Weakest Moderate Strongest

Strength of the Amount of Diluent Solution

Volume to administer for 750,000-unit dose

Strength of the Solution 250,000 500,000 1,000,000

Volume to administer for 750,000-unit dose 3 ml 1.5ml 0.75 ml

Answer: Concentration Weakest Moderate Strongest

Amount of Diluent 18.2 ml 8.2 ml 3.2 ml

Learning Outcome: 9.2 Interpret the directions on drug labels and package inserts for reconstituting medications supplied in powdered form.

28) Using the label below, determine how many ml of furosemide the patient will receive per dose when the order reads: Lasix 80 mg IV q8h.

1. 2 mL 2. 4 mL 3. 8 mL 4. 16 mL Answer: 3 Learning Outcome: 9.1 Calculate doses for parenteral medications in liquid form.

29) Using the drug label below. Determine how many ml you will administer per doses if the order reads: 750 mg clindamycin IV q12h. Show your work.

1. 0.5 mL 2. 50 mL 3. 5 mL 4. 16 mL Answer: 3 Learning Outcome: 9.1 Calculate doses for parenteral medications in liquid form.

30) Calculate how many ml of medication you will administer for an order that reads: hydromorphone HCL 2 mg subcutaneously q3h prn for pain. Show your work.

1. 0.5 mL 2. 1 mL 3. 2 mL 4. 4 mL Answer: 1 Learning Outcome: 9.1 Calculate doses for parenteral medications in liquid form.

31) Using the label below, calculate how many milliliters of oxytocin you will prepare for an order that reads: Pitocin 25 units IM stat. Show your work.

1. 2 mL 2. 5 mL 3. 2.5 mL 4. 25 mL Answer: 3 Learning Outcome: 9.1 Calculate doses for parenteral medications in liquid form.

32) Using the label below, determine how many milliliters of the low molecular weight heparin you will administer per dose if the order reads: 120 units/kg subcutaneously q12h for a patient who weighs 178 lbs.

1. 0.7 mL 2. 0.39 mL 3. 1.6 mL 4. 16 mL Answer: 2 Learning Outcome: 9.6 Calculate doses for subcutaneous heparin. Medical Dosage Calculations, Updated 11e (Giangrasso) Chapter 10 Flow Rates and Durations of Enteral and Intravenous Infusions 1) An IV of NS 1000 mL is to infuse over 12 hours. The drop factor is 10 gtt/mL. Calculate the flow rate in gtt/min. 1. 14 gtt/min 2. 13.8 gtt/min 3. 50 gtt/min 4. 500 gtt/min Answer: 1 Explanation: 1000 mL/12 h × 10 gtt/mL × 1 h/ 60 min = 13.8 gtt/min. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 2) Order: 2000 mL D5W IV infused in six hours. The drop factor is 15 gtt/mL. Calculate the flow rate in gtt/min. 1. 83 gtt/min 2. 133 gtt/min 3. 3 gtt/min 143 Copyright © 2022 Pearson Education, Inc.

4. 84 gtt/min Answer: 1 Explanation: 2000 mL/6 h × 15 gtt/mL × 1 h/ 60 min = 83.3 gtt/min. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 3) An IV of 1000 mL NS is to infuse over eight hours. The drop factor is 10 gtt/mL. Calculate the flow rate in gtt/min. 1. 13 gtt/min 2. 21 gtt/min 3. 75 gtt/min 4. 23 gtt/min Answer: 2 Explanation: 1000 mL/8 h × 10 gtt/mL × 1 h/60 min = 20.8 gtt/min. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 4) An IV is infusing at 75 mL/h. If the drop factor is 20 gtt/mL, what would this rate of flow equal in gtt/min? 1. 4 gtt/min 2. 240 gtt/min 3. 25 gtt/min 4. 225 gtt/min Answer: 3 Explanation: 75mL/hour × 20 gtt/mL × 1 h/60 min = 25 gtt/min. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h.

5) An IV is infusing at 125 mL/h. If the drop factor is 15 gtt/mL, what would this rate of flow equal in gtt/min? 1. 8 gtt/min 2. 31 gtt/min 3. 32 gtt/min 4. 50 gtt/min Answer: 2 Explanation: 125mL/hour × 15 gtt/mL × 1 h/60 min = 31.25 gtt/min. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 6) Order: 1000 mL NS to infuse in eight hours. At what rate in mL/h will you set the pump? 1. 125 mL/h 2. 250 mL/h 3. 1600 mL/h 4. 16,000 mL/h Answer: 1 Explanation: 1000 mL/8 h = 125 mL/h Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 7) Order: 600 mL D5W IV to infuse in six hours. At what rate in mL/h will you set the pump? 1. 100 mL/h 2. 10 mL/h 3. 1.7 mL/h 4. 60 mL/h Answer: 1 Explanation: 600 ÷ 6 = 100 mL/h. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 8) An IV is infusing at 30 gtt/min. If the drop factor is 20 gtt/mL, what would this rate of flow equal in mL/h? 1. 600 mL/h 2. 10 mL/h 3. 100 mL/h 4. 90 mL/h Answer: 4 Explanation: 30 gtt/min × mL/20 gtt × 60 min/h = 90 mL/h. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 9) An IV is infusing at 25 gtt/min. If the drop factor is 10 gtt/mL, what would this rate of flow equal in mL/h? 1. 250 mL/h 2. 4.2 mL/h 3. 150 mL/h 4. 15,000 mL/h Answer: 3 Explanation: 25 gtt/min × mL/10 gtt × 60 min/h = 150 mL/h. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 10) An IV is infusing at 45 gtt/min. If the drop factor is 15 gtt/mL, what would this rate of flow 145 Copyright © 2022 Pearson Education, Inc.

equal in mL/h? 1. 30 mL/h 2. 180 mL/h 3. 18 mL/h 4. 3 mL/h Answer: 2 Explanation: 45 gtt/min × mL/15 gtt × 60 min/h = 180 mL/h. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 11) An IV is infusing at 47 mcgtt/min. What would this rate of flow equal in mL/h? 1. 47 mL/h 2. 4.7 mL/h 3. 470 mL/h 4. 12 mL/h Answer: 1 Explanation: mcgtt/min = mL/h. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 12) An IV is infusing at 120 mL/h. What would this rate of flow equal in mcgtt/min? 1. 53 mcgtt/min 2. 120 mcgtt/min 3. 12 mcgtt/min 4. 1.2 mcgtt/min Answer: 2 Explanation: mcgtt/min = mL/h. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 13) An IV is infusing at 10 mcgtt/min. What would this rate of flow equal in mL/h? 1. 10 mL/h 2. 1 mL/h 3. 100 mL/h 4. 0.6 mL/h Answer: 1 Explanation: mcgtt/min = mL/h. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 14) An IV is infusing at 23 mcgtt/min. What would this rate of flow equal in mL/h? 1. 23 mL/h 2. 230 mL/h 3. 2.3 mL/h 4. 18 mL/h Answer: 1 Explanation: mcgtt/min = mL/h. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 15) An IV is infusing at 73 mL/h. What would this rate of flow equal in mcgtt/min? 1. 730 mcgtt/min 2. 73 mcgtt/min 3. 7.3 mcgtt/min 146 Copyright © 2022 Pearson Education, Inc.

4. 53 mcgtt/min Answer: 2 Explanation: mcgtt/min = mL/h. Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 16) An IV is infusing at 15 mL/h. What would this rate of flow equal in mcgtt/min? 1. 1.5 mcgtt/min 2. 15 mcgtt/min 3. 18 mcgtt/min 4. 150 mcgtt/min Answer: 2 Explanation: mcgtt/min = mL/h Learning Outcome: 10.2 Quickly convert flow rates between gtt/minute and mL/h. 17) A continuous IV is infusing at the rate of 120 mL/h. How many mL will infuse in a three-hour period? 1. 40 mL 2. 6 mL 3. 360 mL 4. 400 mL Answer: 3 Explanation: 3 × 120 = 360 mL. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions. 18) A continuous IV is infusing at the rate of 15 mL/h. How many mL will infuse in an eight-hour period? 1. 1.9 mL 2. 2 mL 3. 120 mL 4. 7200 mL Answer: 3 Explanation: 15 × 8 = 120 mL. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions. 19) A continuous IV is infusing at the rate of 300 mL/h. How many mL will infuse in a 12-hour period? 1. 250 mL 2. 25 mL 3. 360 mL 4. 3600 mL Answer: 4 Explanation: 300 × 12 = 3600 mL. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions. 20) A continuous IV is infusing at the rate of 30 gtt/min. The drop factor is 10 gtt/mL. How many milliliters will infuse in 1 1/2 hours? 1. 7.5 mL 2. 45 mL 3. 450 mL 147 Copyright © 2022 Pearson Education, Inc.

4. 270 mL Answer: 4 Explanation: 30 gtt/min × mL/10 gtt × 60 min/h = 180 mL/h. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions. 21) A continuous IV is infusing at the rate of 21 gtt/min. The drop factor is 15 gtt/mL. How many milliliters will infuse in 24 hours? 1. 2016 mL 2. 7560 mL 3. 126 mL 4. 525 mL Answer: 1 Explanation: 21 gtt/min × mL/15 gtt × 60 min/h = 84 mL/h. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions. 22) A continuous IV is infusing at the rate of 10 mcgtt/min. How many milliliters will infuse in 24 hours? 1. 4 mL 2. 14,400 mL 3. 240 mL 4. 24 mL Answer: 3 Explanation: 10 mcgtt/min = 10 mL/h. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions. 23) Calculate the infusion time for an IV of 1000 mL running at 75 mL/h. 1. 13 hours, 20 minutes 2. 13.5 hours 3. 13 hours, 33 minutes 4. 13 2/3 hours Answer: 1 Explanation: 1000 ÷ 75 = 13.33 h. Learning Outcome: 10.4 Calculate the durations of enteral and IV infusions.

24) Calculate the infusion time for an IV of 2000 mL running at 125 mL/h. 1. 250,000 minutes 2. 16 h 3. 4166 minutes 4. 8 h Answer: 2 Explanation: 2000 ÷ 125 = 16 h. Learning Outcome: 10.4 Calculate the durations of enteral and IV infusions. 25) Calculate the infusion time for an IV of 1500 mL running at 25 gtt/min. if the drop factor is 15 gtt/mL. 1. 15 h 2. 41.7 h 3. 898 h 4. 60 h Answer: 1 Explanation: 1500 mL × 15 gtt/mL × min/25 gtt × h/25 gtt = 15 h. Learning Outcome: 10.4 Calculate the durations of enteral and IV infusions. 26) The time is 4:30 p.m. An IV has 1400 mL remaining in the bag. The pump is running at 125 mL/h. At what time (use military time) will the IV finish? 1. 1642 hours 2. 1542 hours 3. 0342 hours 4. 0330 hours Answer: 3 Explanation: 1,400 ÷ 125 = 11.2; 11.2 h = 11 h, 12 min. Learning Outcome: 10.4 Calculate the durations of enteral and IV infusions. 27) The time is 8:00 a.m. An IV has 200 mL remaining in the bag. The pump is running at 15 mL/h. At what time (use military time) will the IV finish? 1. 2120 hours 2. 2133 hours 3. 9:33 p.m. 4. 9:20 a.m. Answer: 1 Explanation: 200 ÷ 15 = 13 1/3 h. Learning Outcome: 10.4 Calculate the durations of enteral and IV infusions.

28) The time is 8:30 p.m. An IV has 400 mL remaining in the bag. The pump is running at 80 mL/h. At what time (use military time) will the IV finish? 1. 0130 hours 2. 1330 hours 3. 1230 hours 4. 0030 hours Answer: 1 Explanation: 400 ÷ 8 = 5 h. Learning Outcome: 10.4 Calculate the durations of enteral and IV infusions. 29) Order: NS 1000 mL IV stat. at 125 mL/h for eight hours. Because the drop factor is 10 gtt/mL, the initial flow rate was initially set at 21 gtt/min. After four hours, 600 mL remain to be infused. The infusion is behind schedule. Compute the new flow rate in gtt/min so that the infusion will finish on time. If flow rates may not be adjusted by more than 25% of the original rate, to what rate would you reset the drip rate, or would you contact the prescriber instead? 1. Contact the prescriber. 2. 25 gtt/min 3. 150 gtt/min 4. 23 gtt/min Answer: 2 Explanation: 25 ÷ 125 = 20% Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions. 30) Order: D5W 1000 mL IV at 50 mL/h for 20 hours. The initial flow rate was correctly set at 50 mcgtt/min. After five hours, 600 mL remain to be infused. The infusion is ahead of schedule. Compute the new flow rate in mcgtt/min so that the infusion will finish on time. If flow rates may not be adjusted by more than 25% of the original rate, to what rate would you reset the drip rate, or would you contact the prescriber instead? 1. Contact the prescriber. 2. 40 mcgtt/min 3. 12 mcgtt/min 4. 2.4 mcgtt/min Answer: 2 Explanation: 10 ÷ 50 = 20%. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions.

31) Order: NS 1500 mL IV at 125 mL/h for 12 hours. Since the drop factor is 20 gtt/mL, the initial flow rate was correctly set at 42 gtt/min. After six hours, 900 mL remain to be infused. The infusion is behind schedule. Compute the new flow rate in gtt/min so that the infusion will finish on time. If flow rates may not be adjusted by more than 25% of the original rate, to what rate would you reset the drip rate, or would you contact the prescriber instead? 1. Contact the prescriber. 2. 45 gtt/min 3. 21 gtt/min 4. 50 gtt/min Answer: 4 Explanation: 25 ÷ 125 = 20%. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions. 32) Order: NS 2000 mL IV at 125 mL/h for 16 hours. Since the drop factor is 10 gtt/mL, the initial flow rate was correctly set at 21 gtt/min. After 10 hours, 850 mL remain to be infused. The infusion is behind schedule. Compute the new flow rate in gtt/min so that the infusion will finish on time. Note that flow rates may not be adjusted by more than 25% of the original rate. To what rate would you reset the drip rate, or would you contact the prescriber instead? 1. Contact the prescriber. 2. 23 gtt/min 3. 24 gtt/min 4. 85 gtt/min Answer: 3 Explanation: 17 ÷ 125 = 14%. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions. 33) Order: D5 1/4 NS 240 ml IV at 10 ml/h to infuse over 24 hours. The initial flow rate was correctly set at 10 mcgtt/min. After eight hours, 220 ml of IV fluid remains to be infused. The infusion is behind schedule. Compute the new flow rate in gtt/min so that the infusion will finish on time. Note that flow rates may not be adjusted by more than 25% of the original rate. To what rate would you reset the drip rate, or would you contact the prescriber instead? 1. Contact the prescriber. 2. 13 gtt/min 3. 14 gtt/min 4. 9 gtt/min Answer: 1 Explanation: 3.75 ÷ 10 = 37.5%. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions.

34) Order: For every 100 mL of urine output, replace with 30 mL of water via PEG tube q.4h. The client's urine output is 350 mL. What is the replacement volume? 1. 10.5 mL 2. 105 mL 3. 1050 mL 4. 11.67 mL Answer: 2 Explanation: 350 mL (out) × 30 mL (in)/100 mL (out) = 105 mL. Learning Outcome: 10.5 Determine fluid replacement volumes. 35) The client drinks one container of milk (1 cup), one container of juice (4 oz.), and a 6 oz. bowl of juice. Record the client's intake in mL. 1. 210 mL 2. 540 mL 3. 420 mL 4. 240 mL Answer: 2 Explanation: 8 oz + 4 oz + 6 oz = 18 oz = 540 mL Learning Outcome: 10.5 Determine fluid replacement volumes. 36) Order: Infuse 1 mL of normal saline IV for every 2 ml of urine in excess of 50 mL. The client's urine output is 80 mL. How much normal saline will you administer? 1. 30 mL 2. 15 mL 3. 40 mL 4. 20 mL Answer: 2 Explanation: 80 — 50 = 30; 30 (out) × 1 (in)/2 (out) = 15 mL. Learning Outcome: 10.5 Determine fluid replacement volumes. 37) Order: Replace every 2 mL of urine output with 1 mL of water via g-tube. The client's urine output is 350 mL. How many mL of water would you administer? 1. 175 mL 2. 350 mL 3. 700 mL 4. 17.5 mL Answer: 1 Explanation: 350 (out) × 1(in)/2 (out) = 175 mL. Learning Outcome: 10.5 Determine fluid replacement volumes.

38) Who determines the dose the patient receives when a patient-controlled analgesia (PCA) pump is being used? 1. Patient 2. Physician 3. Unregulated heath care worker 4. Nurse Answer: 2 Explanation: A PCA pump allows a client to self-administer pain relieving drugs. The dose is predetermined by the physician. Learning Outcome: 10.1 Describe the basic concepts and standard equipment used in administering enteral and intravenous infusions. 39) The prescriber ordered 750 ml of 0.9% NaCl to infuse over 8 hours. The solution set reads 15 gtt/ml. What is the flow rate in gtt/min? 1. 1,406 gtt/min 2. 23.4 gtt/min 3. 23 gtt/min 4. 1,406.25 gtt/min Answer: 3 Explanation: 750 ml × 15 gtt/ml divided by 8 hours, divided by 60 minutes. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions. 40) 0.45 NaCl is ordered to infuse at 125 ml/hr. for 12 hours. If the infusion starts at 1624 hr on Wednesday, what time will it be completed? 1. 1624 hrs on Thursday 2. 0424 hrs on Thursday 3. 1624 hrs on Wednesday 4. 0424 hrs on Wednesday Answer: 2 Explanation: The infusion takes 12 hours to complete. The 125 ml/hr. rate is irrelevant to the question. Learning Outcome: 10.4 Calculate the durations of enteral and IV infusions. 41) Calculate q8h: For every 25 ml of nasogastric losses, replace with 50 ml of NaCl 0.9% with 20 mEq KCl/L (infuse at 100 ml/hr.) The patient had 600 ml of NG loss in 8 hours. What is the replacement volume? 1. 500 ml 2. 50 ml 3. 1,200 ml 4. 600 ml Answer: 3 Explanation: Loss = 600 ml × 2 = 1,200 ml. Learning Outcome: 10.5 Determine fluid replacement volumes.

42) An infusion of 5% Dextrose is infusing at a rate of 23 gtt/min. If the drop factor is 10 gtt/ml, how many hours will it take for 250 ml of the solution to infuse? 1. 250 ml 2. 1.8 hr. 3. 138 minutes 4. 6 hr. Answer: 2 Explanation: DF = 6, 23 × 6 = 138, 138 ml/hr. Learning Outcome: 10.4 Calculate the durations of enteral and IV infusions. 43) Mrs. Harvey has an IV of NaCl infusing at a rate of 18 gtt/min. If the drop factor is 15 gtt/ml, how many milliliters will infuse over 6 hours? 1. 72 ml 2. 60 ml 3. 432 ml 4. 18 ml Answer: 3 Explanation: DF = 15, FC = 4, 18 × 4 = 72 × 6 hrs. = 432 ml. Learning Outcome: 10.4 Calculate the durations of enteral and IV infusions. 44) How long will it take 1,000 ml of D5W to infuse if the flow rate is set at 175 ml/hr.? 1. 480 min 2. 343 min 3. 400 min 4. 384 min Answer: 2 Explanation: 1,000 ml/ 175 ml/hr. × 60 min. = 342.8 min. Learning Outcome: 10.4 Calculate the durations of enteral and IV infusions. 45) Complete the following table: Order 500 ml NaCl 0.9% IV over 12 hrs. 750 ml D5W IV over 8 hrs. 1,000 ml 0.45% NaCl IV over 12 hrs.

Drop factor 15 gtt/ml 10 gtt/ml 15 gtt/ml

Flow rate (gtt/min)

Drop factor 15 gtt/ml 10 gtt/ml 15 gtt/ml

Flow rate (gtt/min) 10 gtt/min. 16 gtt/min. 21 gtt/min.

Answer: Order 500 ml NaCl 0.9% IV over 12 hrs. 750 ml D5W IV over 8 hrs. 1,000 ml 0.45% NaCl IV over 12 hrs.

Explanation: See example 10.15 on page 309. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions.

46) The order reads Lactated Ringer's 1,000 mL IV over 12 hours. Use dimensional analysis to determine what the electronic infusion pump will be set to in ml/hr. 1. 81 mL/h 2. 82 mL/h 3. 83 mL/h 4. 84 mL/h Answer: 3 Explanation: See example 10.12 on page 306. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions. 47) At 0930 hrs., there are 450 ml remaining in the IV bag when the rate is changed to 150 ml/hr. Use the dimensional analysis method to determine at what time the infusion will be completed. 1. 1230h 2. 0230h 3. 1430h 4. 1630h Answer: 1 Explanation: Given 0930 hrs. (+ 3 hours) = the infusion will complete at 1230 hrs. See example 10.6 on page 300. Learning Outcome: 10.4 Calculate the durations of enteral and IV infusions. 48) The order reads 750 ml D5W over 6 hours. The drop factor is 10gtt/ml. Determine the initial flow rate in gtt/min. 1. 20 gtt/min 2. 21 gtt/min 3. 22 gtt/min 4. 60 gtt/min Answer: 2 Explanation: See example 10.15 on page 309. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions. 49) The order reads: for every 150 ml of urine output, replace with 30 ml of water via PEG tube q4h. The patient's urine output is 400 mL. Determine the replacement volume. 1. 20 mL 2. 40 mL 3. 60 mL 4. 80 mL Answer: 4 Explanation: See example 10.16 on page 310. Learning Outcome: 10.5 Determine fluid replacement volumes.

50) The order reads: D5W at 145 ml/hr. IV for 8 hours. Determine how many milliliters the patient will receive in 8 hours. 1. 1,160 mL 2. 1,000 mL 3. 1,260 mL 4. 1,660 mL Answer: 1 Explanation: See example 10.3 on page 299. Learning Outcome: 10.3 Calculate the flow rates of enteral and IV infusions. Medical Dosage Calculations, Updated 11e (Giangrasso) Chapter 11 Flow Rates and Dosage Rates for Intravenous Medications 1) Order: Amikin (amikacin sulfate) 350 mg IVPB in 100 mL DW stat., infuse in 1h. Calculate the flow rate in drops per minute. The drop factor is 10 gtt/mL. 1. 600 gtt/min 2. 17 gtt/min 3. 21 gtt/min 4. 6 gtt/min Answer: 2 Explanation: 100 mL/h = 17 gtt/min. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 2) Order: Heparin sodium 25,000 units in 250 mL DW IVPB, infuse at 1500 units /h. Calculate the flow rate in milliliters per hour. 1. 15 mL/h 2. 17 mL/h 3. 25 mL/h 4. 12 mL/h Answer: 1 Explanation: 1500 units/h × 250 mL/25,000 units = 15 mL/h. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 3) Order: Vancomycin HCl 1 g in 200 mL DW IVPB, infuse in 60 min. Calculate the flow rate in drops per minute. The drop factor is 20 gtt/mL. 1. 17 gtt/min 2. 167 gtt/min 3. 67 gtt/min 4. 30 gtt/min Answer: 3 Explanation: 200 mL/60 min × 20 gtt/mL = 66.66 gtt/min. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time).

4) Order: Potassium chloride 20 mEq in 1000 mL D/NS (pre-mixed solution) IV, infuse at 2 mEq/h. Calculate the rate in mL/h. 1. 100 mL/h 2. 10 mL/h 3. 250 mL/h 4. 150 mL/h Answer: 1 Explanation: 2 mEq/h × 1000 mL/20 mEq = 100 mL/h. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 5) Order: Nitroglycerine 50 mg in 250 mL normal saline, infuse at 10 mcg/minute. Calculate the rate in mL/h. 1. 3 mL/h 2. 2 mL/h 3. 0.5 mL/h 4. 20 mL/h Answer: 1 Explanation: 10 mcg/min × 60 min/h × mg/1000 mcg × 250 mL/50 mg = 3 mL/h. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 6) An IVPB is infusing at 100 mL/h. The strength of the solution in the bag is 0.5 mg/mL. What is the dosage rate in mg/h? 1. 300 mg/h 2. 50 mg/h 3. 200 mg/h 4. 120 mg/h Answer: 2 Explanation: 100 mL/h × 0.5 mg/mL = 50 mg/h. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 7) An IV is infusing at 125 mL/h. The strength of the solution in the bag is 10 mcg/mL. What is the dosage rate in mg/h? 1. 1250 mg/h 2. 1.25 mg/h 3. 750 mg/h 4. 75 mg/h Answer: 2 Explanation: 125 mL/h × 10 mcg/mL × 1 mg/1000 mcg = 1.25 mg/h. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 8) An IV is infusing at 50 mL/h. The strength of the solution in the bag is 150 mg/mL. What is the dosage rate in g/h? 157 Copyright © 2022 Pearson Education, Inc.

1. 7.5 g/h 2. 7500 g/h 3. 3 g/h 4. 300 g/h Answer: 1 Explanation: 50 mL/h × 150 mg/mL × g/1000 mg = 7.5 g/h. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 9) An IV is infusing at 80 mL/h. Potassium chloride 20 mEq was added to 1000 mL of IV solution. How much potassium chloride is administered in mEq/h? 1. 4000 mEq/h 2. 4 mEq/h 3. 1.6 mEq/h 4. 0.16 mEq/h Answer: 3 Explanation: 80 mL/h × 20 mEq/1000 mL = 1.6 mEq/h. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 10) Order: Pepcid (famotidine) 20 mg IVPB q.12h. The label on the 4 mL vial reads 10 mg/mL. The manufacturer recommends adding the famotidine to 50 mL of D5W and infusing the medication over 60 minutes. At how many microdrops per minute will you set the IVPB solution to infuse? 1. 52 mcgtt/min 2. 20 mcgtt/min 3. 125 mcgtt/min 4. 50 mcgtt/min Answer: 1 Explanation: 52 mL/h = 52 mcgtt/min. Learning Outcome: 11.7 Perform calculations for infusions when medication must be added to the IVPB bag.

11) Order: Avelox (moxifloxacin HCl) 400 mg IVPB daily for five days. The label on the IV reads moxifloxacin 400 mg/250 mL 0.9 % saline, give over 60 minutes. At how many milliliters per hour will you set the infusion pump? 1. 250 mL/h 2. 400 mL/h 3. 5 mL/h 4. 7 mL/h Answer: 1 Explanation: 250 mL/60 min = 250 mL/h. Learning Outcome: 11.7 Perform calculations for infusions when medication must be added to the IVPB bag. 12) Order: Mefoxin (cefoxitin sodium) 1 g IVPB q.6h. The manufacturer recommends reconstituting the 1 g vial with 10 mL of sterile water, adding it to 100 mL of D5W, and infusing the medication over 60 minutes. At how many drops per minute will you set the IV to infuse if the drop factor is 15 gtt/mL? 1. 250 gtt/min 2. 28 gtt/min 3. 10 gtt/min 4. 25 gtt/min Answer: 2 Explanation: 110 mL/h × 15 gtt/mL × 1 h/60 min = 27.5 gtt/min. Learning Outcome: 11.7 Perform calculations for infusions when medication must be added to the IVPB bag. 13) Order: Zofran (ondansetron HCl) 4 mg IVPB, add to 50 mL D1/2 NS and infuse in 20 min. via pump. The label on the vial reads 2 mg/mL. At how many milliliters per hour will you set the infusion pump (mL/h)? 1. 156 mL/h 2. 50 mL/h 3. 104 mL/h 4. 54 mL/h Answer: 1 Explanation: 52 mL/20 min × 60 min/h = 156 mL/h. Learning Outcome: 11.7 Perform calculations for infusions when medication must be added to the IVPB bag.

14) Order: Add 125 mg of morphine sulfate to DW 250 mL stat. and infuse at 0.005 mg/kg/min. Calculate the flow rate in milliliters per hour for the patient who weighs 95 kilograms. 1. 0.2 mL/h 2. 28.5 mL/h 3. 0.95 mL/h 4. 57 mL/h Answer: 4 Explanation: 95 × 0.005 = 0.475 mg/min. Learning Outcome: 11.6 Calculate the dosage rate when the order involves a compound rate (mg/kg/min). 15) Order: Cipro (ciprofloxacin) 400 mg in 200 mL DW IVPB. The patient weighs 175 pounds, and is to receive 6 mg/kg/h. Calculate the flow rate in drops per minute. The drop factor is 15 gtt/mL. 1. 50 gtt/min 2. 1066 gtt/min 3. 60 gtt/min 4. 262 gtt/min Answer: 3 Explanation: 175 ÷ 2.2 = 79.5 kg × 6 = 477 mg/h. Learning Outcome: 11.6 Calculate the dosage rate when the order involves a compound rate (mg/kg/min). 16) Order: Verapamil HCl 0.075 mg/kg IV push over two min. The label on the vial reads 5 mg/2 mL, and the patient weighs 80 kg. How many mL/min. will you administer? 1. 2.4 mL/min 2. 1.2 mL/min 3. 0.6 mL/min 4. 3 mL/min Answer: 2 Explanation: 0.075 mg/kg × 80 kg = 6 mg to be administered. 2.4 mL/2 min = 1.2 mL/min. Learning Outcome: 11.6 Calculate the dosage rate when the order involves a compound rate (mg/kg/min).

17) Order: Hycamtin (topotecan HCl) 1.5 mg/m2 IV daily for five days, repeat every 21 days. The label on the vial reads 4 mg, and the manufacturer's directions state: "Reconstitute each 4 mg with 4 mL of sterile water. Withdraw the dose and further dilute in 50 mL D5W and infuse over 30 minutes." Calculate the rate of flow in milliliters per hour for a patient who weighs 92 kg and is 183 cm tall. 1. 106 mL/h 2. 114 mL/h 3. 100 mL/h 4. 87.5 mL/h Answer: 1 Explanation: 2.16 m2 × 1.5 = 3.24 mg = 3.24 mL; 53 ml/0.5 h = 106 mL/h. Learning Outcome: 11.6 Calculate the dosage rate when the order involves a compound rate (mg/kg/min). 18) Order: DTIC-Dome (dacarbazine) 250 mg/m2 IV for five days. The label on the vial indicates a strength 10 mg/mL, further dilute in 250 mL of D5W, and infuse over 60 minutes. Calculate the rate of flow in milliliters per hour for a patient who weighs 92 kilograms and is 183 centimeters tall. 1. 250 mL/h 2. 304 mL/h 3. 367 mL/h 4. 540 mL/h Answer: 2 Explanation: 2.16 m2 × 250 = 540 mg; 54 mL + 250 mL = 304 mL. Learning Outcome: 11.6 Calculate the dosage rate when the order involves a compound rate (mg/kg/min). 19) Order: Zofran (ondansetron HCl) 0.15mg/kg IVPB 30 minutes before chemotherapy. The label on the vial reads 2 mg/mL, and the manufacturer's directions states to dilute in 50 mL D5W and infuse in 15 minutes. Calculate the rate of flow in drops per minute for a patient who weighs 55 kilograms. The drop factor is 10 gtt/mL. 1. 216 gtt/min 2. 72 gtt/min 3. 36 gtt/min 4. 14 gtt/min Answer: 3 Explanation: 50 + 4 = 54 mL; 54 mL/0.25 h = 216 mL/h. Learning Outcome: 11.6 Calculate the dosage rate when the order involves a compound rate (mg/kg/min). 20) Order: Heparin 20,000 units in 1000 mL 0.9% NaCl stat., infuse at 25 mL/h. 161 Copyright © 2022 Pearson Education, Inc.

Calculate the units per hour and determine if the dose is within the normal daily range (20,000—40,000 units in 24 h). 1. 25,000 units/h, and the dose is within the normal daily range 2. 500,000 units/h, and the dose is higher than the normal daily range 3. 500 units/h, and the dose is lower than the normal daily range 4. 0.8 units/h, and the dose is lower than the normal daily range Answer: 3 Explanation: 25 mL/h × 20,000 units/1000 mL = 500 units/h. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 21) A patient who weighs 40 kg is to receive Fortaz (ceftazidime) 50 mg/kg IVPB q.8h. The recommended dose range is from 250 mg to 2 g every 8—12 hours. Is this dose within the safe range? ________ Answer: Yes Explanation: 50 mg/kg × 40 kg = 2000 mg, or 2 g. Range is 0.5—6 g/day. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 22) Order: Heparin 40,000 units in 1000 mL 0.9% NS, infuse at 40 mL/h. Calculate the units per day and determine if the dose is within the normal daily range (20,000—40,000 units in 24 h). 1. 1600 units/d, which is lower than the normal daily range 2. 38,400 units/d, which is within the normal daily range 3. 38,400 units/d, which is not within the normal daily range 4. 1600 units/d, which is higher than the normal daily range Answer: 2 Explanation: 40,000 units/1000 mL × 40 mL/h × 24 h/d. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 23) Order: Heparin 25,000 units in 1000 mL 0.09% NS, infuse at 100 mL/h. Calculate the units per day if the dose is within the normal daily range (20,000 —40,000 units in 24 h). 1. 60,000 units, which is within the normal daily range 2. 2500 units, which is not within the normal daily range 3. 25,000 units, which is within the normal daily range 4. 60,000 units, which is not within the normal daily range Answer: 4 Explanation: 2500 units/h × 24 hours = 60,000 units/day. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 24) A drug is ordered to be administered IV at the initial rate of 2 mU/min, and may increase by 4 mU/min q 15 min to a maximum of 18 mU/min. The IV strength is 10 mU/mL. The initial flow rate is ________ mL/h. Answer: 12 162 Copyright © 2022 Pearson Education, Inc.

Explanation: 2mU/min = 12 mL/h. Learning Outcome: 11.8 Construct titration tables. 25) Dopamine is ordered to be administered IV at the initial rate of 5 mcg/kg/min, and may increase by 1 mcg/kg/min to a maximum of 10 mg/kg/min. The solution is mixed 400 mg Dopamine in 250 mL normal saline. The client weighs 50 kilograms. The initial flow rate is ________ mL/h. Answer: 9 Explanation: 50 kg × 5 = 250 mcg/min. 250/mcg/min × 60 min/h × 1 mg/1000 mcg × 250 mL/400 g = 9 mL/h. Learning Outcome: 11.8 Construct titration tables. 26) If 150 mg of a drug is ordered IVP stat over two minutes, and the concentration of the drug is 75 mg/mL, find the total number of milliliters, and indicate how many milliliters you will administer per minute. 1. 10 mL total; 5 mL/min 2. 2mL total; 1 mL/min 3. 1 mL total; 1 mL/min 4. 4 mL total; 2 mL/min Answer: 2 Explanation: 2 mL/2 min = 1 mL/min. Learning Outcome: 11.5 Calculate flow rates for IV push medications. 27) Order: Phenytoin (Dilantin) 15 mg/kg loading dose IV push stat. Phenytoin is supplied 50 mg/mL and is to be administered at 25 mg/min. How many mL would you administer over how many minutes if the client weighs 65 kilograms? 1. 19.5 mL over 39 minutes 2. 19.5 mL over 20 minutes 3. 30 mL to be given over 1 hour 4. 30 mL to be given over 30 minutes Answer: 1 Explanation: 15 mg/kg × 65 kg = 975 mg to be administered; 975 mg × min/25 mg = 39 minutes. Learning Outcome: 11.5 Calculate flow rates for IV push medications.

28) Order: Furosemide (Lasix) 80 mg IVP now. Furosemide is ototoxic at high doses if given faster than 4 mg/minute. How many minutes would it take to administer this dosage? 1. 2 minutes 2. 360 minutes 3. 80 minutes 4. 20 minutes Answer: 4 Explanation: 80 mg × min/4 mg = 20 minutes. Learning Outcome: 11.5 Calculate flow rates for IV push medications. 29) Order: Digoxin (Lanoxin) 0.25 mg IV daily. All dosages of digoxin are to be given over at least five minutes. The drug is supplied 0.25 mg/mL, which is further diluted in 4 mL of fluid. How many mL of medication would you administer per minute? 1. 1 mL per minute 2. 0.2 mL per minute 3. 2 mL per minute 4. 5 mL per minute Answer: 1 Explanation: 0.25 mg in 1 mL + 4 mL = 5 mL total fluid for administration over five minutes or 1 mL per minute. Learning Outcome: 11.5 Calculate flow rates for IV push medications.

30) Using the image below, determine the infusion rate in milliliters per hour if the order reads: Heparin sodium @ 1,000 units/hr.

1. 250 ml/hr. 2. 1,000 ml/hr. 3. 40 ml/hr. 4. 25 ml/hr. Answer: 4 Explanation: Supplied 40 units/ml, order 1,000 units/hr. = 25 ml/hr. Learning Outcome: 11.2 Calculate dosage rates for intravenous piggyback (IVPB) infusions.

31) The order reads: Magnesium Sulfate 2 grams in 100 ml of NaCl 0.9% over 60 minutes. How many mg of Magnesium Sulfate will the patient receive in 15 minutes? 1. 2,000 mg 2. 1,000 mg 3. 250 mg 4. 500 mg Answer: 4 Explanation: 2,000 mg/60 min. = x mg/15 min. = 500 mg. Learning Outcome: 11.3 Convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 32) The order reads: Dopamine hydrochloride at 4 mcg/kg/min. The patient weighs 75 kg. How many mg/min should the patient receive? 1. 0.3 mg/min. 2. 3 mg/min. 3. 30 mg/min. 4. 300 mg/min. Answer: 1 Explanation: 4 × 75 = 300 mcg/min. = 0.3 mg/min. Learning Outcome: 11.6 Calculate the dosage rate when the order involves a compound rate (mg/kg/min). 33) The order reads: clindamycin 300 mg IV q8h. If the dose of clindamycin is added to a 50-ml bag of NaCl 0.9%, and it is to run over 1 hour via IV pump. At what rate would you set the IV pump to infuse?

1. 52 ml/hr. 2. 50 ml/hr. 3. 104 ml/hr. 4. 100 ml/hr. Answer: 1 Explanation: 300 mg = 2 ml, added to the 50-ml bag, to run over 1 hour = 52 ml/hr. Learning Outcome: 11.4 Calculate the infused volume and duration of an IVPB infusion.

34) Metotrexate 3.8 mg/m2/day is ordered IM for one month. If the patient weighs 75 kg and is 5 feet 4 inches tall, how many ml would you take from the vial? Use the image below.

1. 0.24 ml 2. 0.56 ml 3. 0.28 ml 4. 0.6 ml Answer: 3 Explanation: BSA = 1.84 m2 (3.8 mg) = 7 mg required, 7 mg/50 mg × 2 ml = 0.28 ml. Learning Outcome: 11.6 Calculate the dosage rate when the order involves a compound rate (mg/kg/min). 35) A patient is being transferred from another hospital. It is reported to you that they have norepinephrine infusing at 0.2 mcg/kg/min. Your institution delivers this medication in mcg/min. How many mcg/min will you administer if the patient weighs 65 kg? 1. 130 mcg/min. 2. 13 mcg/min. 3. 65 mcg/min. 4. 650 mcg/min. Answer: 2 Explanation: 0.2 mcg/kg/min. × 65 kg = 13 mcg/min. Learning Outcome: 11.6, 11.3 Calculate the dosage rate when the order involves a compound rate (mg/kg/min).; convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 36) Mr. Phillipe weighs 65 kg and is receiving a medication at a rate of 48 ml/hr. The concentration of the medication is 300 mg/500 ml of NS. The recommended dose range for the medication is 2-4 mcg/kg/min. Is the dose that the patient is receiving safe? 1. Yes. 2. No, the patient is being under dosed. 3. No, the patient is being over dosed. 4. There is not enough information provided to determine the correct dosage range. Answer: 3 Explanation: The safe dosage range for this patient is 7,800 - 15,600 mcg/hr. Learning Outcome: 11.6, 11.3 Calculate the dosage rate when the order involves a compound rate (mg/kg/min).; convert between IVPB dosage rates (drug/time) and flow rates (volume/time). 37) A nitroglycerin infusion has been ordered to begin at 30 mcg/min. May increase by 10 mcg/min up to 70 mcg/min. The medication comes in a pre-mixed bottle with a concentration of 50 mg/250 ml. Complete the titration table. 167 Copyright © 2022 Pearson Education, Inc.

Nitroglycerin 50 mg/250 ml (200 mcg/ml) Dose (mcg/min.) Rate (ml/hr.) 30 40 50 60 70 Answer: Nitroglycerin 50 mg/250 ml (200 mcg/ml) Dose (mcg/min.) Rate (ml/hr.) 30 9 40 12 50 15 60 18 70 21 Learning Outcome: 11.8 Construct titration tables. 38) The order reads: cefotaxime 1,000 mg IVPB q8h in 100 ml NS. Infuse over 30 min. What is the flow rate measured in ml/h. 1. 100 mL/h 2. 200 mL/h 3. 300 mL/h 4. 400 mL/h Answer: 2 Explanation: See example 11.1. Learning Outcome: 11.2 Calculate dosage rates for intravenous piggyback (IVPB) infusions. 39) A client is receiving an infusion at 0.6 mg/min. The concentration in the IVPB bag is 200 mg/500 ml. Using the dimensional analysis method, determine how long it will take for the client to receive 50 mg of the medication. 1. 83 min 2. 90min 3. 93 min 4. 88 min Answer: 1 Explanation: See example 11.8 on page 326. Learning Outcome: 11.4 Calculate the infused volume and duration of an IVPB infusion.

40) A client is receiving an infusion of a drug at a rate of 6 units/min. IVPB. If the concentration of the medication is 250 units/100 ml of solution, how many units of the drug will the client receive in 35 minutes? 1. 200 units 2. 250 units 3. 110 units 4. 210 units Answer: 4 Explanation: The concentration of the drug is irrelevant here. The rate of 6 units/min. and the time over which you are determining the amount of drug delivered are the only two pieces of information required. Learning Outcome: 11.2 Calculate dosage rates for intravenous piggyback (IVPB) infusions. 41) Desmopressin acetate 0.4 mcg/kg IVPB is ordered to infuse over 30 minutes. The vial reads 4 mcg/ml and the patient weighs 75 kg. Using the method of your choice, calculate the dosage of the drug in mcg. Show your work. 1. 13 mcg 2. 30 mcg 3. 34.09 mcg 4. 650 mcg Answer: 2 Explanation: 0.4 mcg × 75 kg = 30 mcg. Learning Outcome: 11.2 Calculate dosage rates for intravenous piggyback (IVPB) infusions. Medical Dosage Calculations, Updated 11e (Giangrasso) Chapter 12 Pediatric Dosages 1) Order: Prednisone 0.15 mg/kg PO daily. The label on the bottle reads 2.5 mg/tab, and the child weighs 110 pounds. Calculate the number of tablets that you should administer. 1. 6 tablets 2. 14 1/2 tablets 3. 3 tablets 4. 18 tablets Answer: 3 Explanation: 110 ÷ 2.2 = 50 kg, 7.5 mg. Learning Outcome: 12.2 Calculate pediatric oral and parenteral dosages based on body weight. 2) Order: Pen-Vee K (penicillin V potassium) 7.5 mg/kg PO, daily q.4h. The medication is supplied in 125 mg/tab, 250 mg/tab, and 500 mg/tab. Using the minimum number of tablets, how many tablets, and of which strength, will you administer to a child who weighs 110 pounds? 1. Three 125mg tablets 2. One 250mg tablet and one 125mg tablet 3. One 500mg tablet, one 250mg tablet, and 3/5 of a 125mg tablet 4. Three 250mg tablets Answer: 2 Explanation: 375 mg per dose. 169 Copyright © 2022 Pearson Education, Inc.

Learning Outcome: 12.2 Calculate pediatric oral and parenteral dosages based on body weight. 3) Order: Phenobarbital sodium 4 mg/kg PO, daily at bedtime. The label on the bottle reads, "30 mg/tab." Calculate how many tablets you should administer for a child who weighs 33 pounds. 1. 2 tablets 2. 4 1/2 tablets 3. 15 tablets 4. 9 2/3 tablets Answer: 1 Explanation: 33 lb = 15 kg. Learning Outcome: 12.2 Calculate pediatric oral and parenteral dosages based on body weight.

4) Order: Dilantin Kapseals (phenytoin sodium, extended) 5 mg/kg PO, extended-release capsules divided in three equal doses. The label on the bottle reads, "30 mg/cap." Calculate how many capsules you should administer for a child who weighs 40 pounds. 1. 1 capsule 2. 3 capsules 3. 2 2/3 capsules 4. 3 3/4 capsules Answer: 1 Explanation: 40 lb × kg/2.2 lb × 5 mg/ kg × 1 cap/30 mg = 3 cap ÷ 3 = 1 capsule Learning Outcome: 12.2 Calculate pediatric oral and parenteral dosages based on body weight. 5) Order: Fluconazole (Diflucan) 5 mg/kg p.o. every day. The label on the bottle reads "50 mg/tablet." Calculate how many tablets you should administer for a child who weighs 44 pounds. 1. 4 2/5 tablets 2. 4 tablets 3. 12 1/2 tablets 4. 2 tablets Answer: 4 Explanation: 20 kg × 5 mg/kg = 100 mg. Learning Outcome: 12.2 Calculate pediatric oral and parenteral dosages based on body weight. 6) Order: Amoxicillin oral suspension 20 mg/kg/day PO in three divided doses. The label on the bottle reads 125 mg/5 mL, and the child weighs 35 pounds. Calculate the number of milliliters that you should administer. 1. 9.3 mL 2. 4.2 mL 3. 2.5 mL 4. 12.9 mL Answer: 2 Explanation: 35 lb/1 × kg/2.2 lb × 20 mg/kg × 5 mL/125 mg = 12.8 mL. Learning Outcome: 12.2 Calculate pediatric oral and parenteral dosages based on body weight.

7) Order: Ery-Ped (erythromycin ethylsuccinate) oral suspension 20 mg/kg/daily PO, in four equally divided doses. The label on the bottle reads, "400 mg/5 mL," and the child weighs 65 pounds. Calculate the number of milliliters that you should administer. 1. 3.25 mL 2. 1.2 mL 3. 8.9 mL 4. 1.8 mL Answer: 4 Explanation: 65 lb/1 × kg/2.2 lb × 20 mg/kg × 5 mL/400 mg = 7.4 mL/d. Learning Outcome: 12.2 Calculate pediatric oral and parenteral dosages based on body weight. 8) Order: Amoxicillin oral suspension 40 mg/kg/day PO, in three divided doses. The label on the bottle reads, "125 mg/5 mL," and the child weighs 65 pounds. Calculate the number of milliliters that you should administer. 1. 0.14 mL 2. 34.7 mL 3. 15.7 mL 4. 47.3 mL Answer: 3 Explanation: 65 lb × kg/2.2 lb × 40 mg/kg × 5 mL/125 mg = 47.3 mL/d/3 = 15.75 Learning Outcome: 12.2 Calculate pediatric oral and parenteral dosages based on body weight. 9) Order: Ery-Ped (erythromycin ethylsuccinate) oral suspension 30 mg/kg/daily PO, in four equally divided doses. The label on the bottle reads, "200 mg/5 mL," and the child weighs 45 pounds. Calculate the number of milliliters that you should administer. 1. 15.3 mL 2. 5.6 mL 3. 18.6 mL 4. 2.55 mL Answer: 1 Explanation: 45 lb × kg/2.2 lb × 30 mg/kg × 5 mL/200 mg = 15.3 mL/d. Learning Outcome: 12.2 Calculate pediatric oral and parenteral dosages based on body weight.

10) Order: Lasix (furosemide) oral suspension 2 mg/kg/daily PO, in four equally divided doses. The label on the bottle reads, "40 mg/5 mL," and the child weighs 11 pounds. Calculate the number of milliliters that you should administer. 1. 3.1 mL 2. 6.05 mL 3. 0.21 mL 4. 0.31 mL Answer: 4 Explanation: 11 lb = 5 kg, 5 kg × 2 mg/kg × 5 mL/40 mg = 0.31 mL. Learning Outcome: 12.2 Calculate pediatric oral and parenteral dosages based on body weight. 11) Order: Claforan (cefotaxime sodium) 50 mg/kg/day IV in four equally divided doses, infuse in 50 mL DW over 30 minutes via pump. The package insert states to reconstitute the 500 mg vial with 10 mL sterile water, and the child weighs 36 kilograms. At what rate will you set the IV pump to run in milliliters per hour? 1. 100 mL/h 2. 108 mL/h 3. 118 mL/h 4. 172 mL/h Answer: 3 Explanation: 1800 mg/day in four equally divided doses = 450 mg/dose. 9 mL + 50 mL D5W = 59 mL to be infused over 30 minutes. Learning Outcome: 12.2 Calculate pediatric oral and parenteral dosages based on body weight. 12) Order: Gentamicin sulfate 2.5 mg/kg IV q.12h., infuse in 20 mL DW over 1h via pump. The label on the vial reads, "10 mg/mL," and the child weighs 10 pounds. At what rate will you set the IV pump to run, in milliliters per hour? 1. 20.6 mL/h 2. 25.7 mL/h 3. 21.1 mL/h 4. 24.5 mL/h Answer: 3 Explanation: 1.136 + 20 = 21.136 mL/h. Learning Outcome: 12.2 Calculate pediatric oral and parenteral dosages based on body weight.

13) A patient is to receive 1000 mL D5W at 80 mL/h. Calculate the flow rate in gtt/min. The drop factor is 20 gtt/mL. 1. 26 gtt/min 2. 33 gtt/min 3. 333 gtt/min 4. 240 gtt/min Answer: 1 Explanation: 80 mL/h × mL/20 gtt × 1 h/60 min = 26.6 gtt/min. Round down. Learning Outcome: 12.3 Calculate pediatric oral and parenteral dosages based on body surface area (BSA). 14) A patient is to receive 500 mg of Kefzol (cefazolin sodium) in 50 mL D5W over 30 minutes. Calculate the flow rate in mcgtt. The drop factor is 60 mcgtt/mL. 1. 50 mcgtt/min 2. 60 mcgtt/min 3. 100 mcgtt/min 4. 120 mcgtt/min Answer: 3 Explanation: 50 mL/30 min = 100 mL/h = 100 mcgtt/min. Learning Outcome: 12.3 Calculate pediatric oral and parenteral dosages based on body surface area (BSA). 15) A patient is to receive 250 mL D5W at 24 mL/h. Calculate the flow rate in gtt/min. The drop factor is 15 gtt/mL. 1. 30 gtt/min 2. 6 gtt/min 3. 62 gtt/min 4. 48 gtt/min Answer: 2 Explanation: 24 mL/h × 15 gtt/mL × 1 h/60 min = 6 gtt/min. Note: a rate this slow in most facilities would require use of an IV pump. Learning Outcome: 12.3 Calculate pediatric oral and parenteral dosages based on body surface area (BSA). 16) Order: Wellcovorin (leucovorin calcium) 10 mg/m2 PO stat. The label on the ampule reads 3 mg/mL. Calculate how many milliliters you will prepare for a child whose BSA is 0.96 m2. 1. 0.32 mL 2. 3.3 mL 3. 33 mL 4. 3.2 mL Answer: 4 Explanation: 0.96 m2 × 10 mg/ m2 = 9.6 Learning Outcome: 12.3 Calculate pediatric oral and parenteral dosages based on body surface area (BSA). 17) Order: Amiodarone HCl 100 mg/m2 PO, daily. 174 Copyright © 2022 Pearson Education, Inc.

Calculate how many milligrams a child whose BSA is 0.8m2 should receive. 1. 80 mg 2. 125 mg 3. 8 mg 4. 12.5 mg Answer: 1 Explanation: 0.8 m2 × 100 mg/ m2 = 80 mg. Learning Outcome: 12.3 Calculate pediatric oral and parenteral dosages based on body surface area (BSA). 18) Order: Lomustine 100 mg/m2 PO, every six weeks. The label on the bottle reads, "100 mg/cap." How many capsules of this antineoplastic drug will you administer to a child whose BSA is 1 m2? 1. 1 capsule 2. 10 capsules 3. 0.1 capsule 4. 7 capsules Answer: 1 Explanation: 1 m2 × 100 mg/ m2 = 100 mg = 1 capsule Learning Outcome: 12.3 Calculate pediatric oral and parenteral dosages based on body surface area (BSA). 19) Order: Dronabinol 5 mg/m2 PO, 1—3 hours before chemotherapy. How many milligrams will a child whose BSA is 0.8m2 receive? 1. 4 mg 2. 6.25 mg 3. 0.4 mg 4. 0.625 mg Answer: 1 Explanation: 0.8 m2 × 5 mg/m2 = 4 mg Learning Outcome: 12.3 Calculate pediatric oral and parenteral dosages based on body surface area (BSA).

20) Calculate the daily rate of maintenance fluids and the hourly flow rate in mL/h for a child who weighs 8 kilograms. 1. 800 mL/day; 33 mL/h 2. 100 mL/day; 4.2 mL/h 3. 80 mL/day; 3.4 mL/h 4. 80 mL/d; 3.3 mL/h Answer: 1 Explanation: 8 kg × 100 mL/kg = 800 mL. Learning Outcome: 12.5 Calculate daily fluid maintenance. 21) Calculate the daily rate of maintenance fluids and the hourly flow rate for a child who weighs 13 kilograms. 1. 1150 mL per day; 47.9 mL/h 2. 130 mL per day; 5.4 mL/hr 3. 650 mL per day; 27 mL/hr 4. 260 mL per day; 10.8 mL/hr Answer: 1 Explanation: (10 × 100) + (3 × 50) = 1150 mL. Learning Outcome: 12.5 Calculate daily fluid maintenance. 22) Calculate the daily rate of maintenance fluids and the IV hourly flow rate for a child who weighs 25 kilograms. 1. 500 mL per day; 20.8 mL per hour 2. 170 mL per day; 7 mL per hour 3. 600 mL per day; 25 mL per hour 4. 1600 mL per day; 66 mL per hour Answer: 4 Explanation: (10 × 100) + (10 × 50) + (5 × 20) = 1600 mL. Learning Outcome: 12.5 Calculate daily fluid maintenance. 23) Calculate the daily rate of maintenance fluids and the IV hourly flow rate for a child who weighs 44 pounds. 1. 1100 mL per day; 46 mL/h 2. 850 mL per day; 35 mL/h 3. 1500 mL per day; 62 mL/h 4. 1200 mL per day; 50 mL/h Answer: 3 Explanation: 44 ÷ 2.2 = 20 kg, 1000 + 500 = 1500 mL. Learning Outcome: 12.5 Calculate daily fluid maintenance.

24) Calculate the daily rate of maintenance fluids and the IV hourly flow rate for a child who weighs 95 pounds. 1. 1960 mL per day; 80 mL/h 2. 2100 mL per day; 87.5 mL/h 3. 2500 mL per day; 104 mL/h 4. 2050 mL per day; 85 mL/h Answer: 1 Explanation: 43 kg, 1000 + 500 + 460 = 1960 mL. Learning Outcome: 12.5 Calculate daily fluid maintenance. 25) Order: Dilantin (phenytoin) 15 mg PO q.12h. The recommended dose for children is 5 mg/kg/day divided in 2—3 doses. Is this order a safe dose for a child who weighs 11 pounds? ________ Answer: No Explanation: 5 kg × 5 mg/kg = 25 mg/day. 15 mg twice a day = 30 mg/day, which is too high a dosage. Learning Outcome: 12.1 Determine if a pediatric dose is within the safe dose range. 26) Order: Amoxil 125 mg PO, q.8h. The recommended dose for children who weigh less than 40 kg is 25 mg/kg/day divided q.12h., or 20 mg/kg/day divided q.8h. Is this a safe dose for a child who weighs 16 pounds? ________ Answer: No Explanation: 7.3 kg; 25 mg/kg/day × 7.3 kg = 182.5 mg/day is a safe dosage. 125 mg three times a day = 375 mg ordered to be administered, which exceeds the safe dosage. Learning Outcome: 12.1 Determine if a pediatric dose is within the safe dose range. 27) Order: Ceclor (cefaclor) 100 mg PO, t.i.d. The recommended dose for a child older than one month is 20—40 mg/kg/d in divided doses q.8h. Is the dose safe for a child who weighs 33 pounds? ________ Answer: Yes Explanation: 20 mg/kg × 15 = 300 mg; 40 mg/kg × 15 = 600 mg. Safe dosage is 300—600 mg/day for a 33 pound child. 100 mg given three times a day = 300 mg which is a safe dosage. Learning Outcome: 12.1 Determine if a pediatric dose is within the safe dose range. 28) Order: Pediaprofen (ibuprofen) 40 mg PO, q.6h. p.r.n. temperature below 102.5°F. The label on the bottle reads, "100 mg/5 mL." The recommended dose is 5 mg/kg q 6—8h, with a maximum daily dose of 40 mg/kg/d. Is this a safe dose for a child who weighs 21 pounds? ________ Answer: Yes Explanation: The maximum dose is 40 mg/kg/day. 9.5 kg × 40 mg/kg/day = 380 mg/day as the maximum dose for this child. 40 mg given four times a day = 160 mg, which is below the maximum dose, so it is safe. Learning Outcome: 12.1 Determine if a pediatric dose is within the safe dose range. 29) The physician orders Garamycin (gentamicin) 25 mg IVPB q.8h. for a child. 177 Copyright © 2022 Pearson Education, Inc.

If the label on the Garamycin vial reads 5 mg/mL, how many milliliters will you withdraw from the vial to add to the volume control chamber? If the recommended concentration of the solution for infusion is 2 mg/mL, how would you then dilute the medication in the volume control chamber (VCC)? 1. 5 mL of medication and 12.5 mL of fluid 2. 125 mL of medication and 125 mL of fluid 3. 5 mL will be withdrawn from the vial and added to the VCC. And then IV fluid must be added to the VCC to the level of 12.5 mL 4. 125 mL of medication and no further fluid is needed Answer: 3 Explanation: 5 mL of medication to be added to the VCC; 25 mg × 1 mL/2 mg = 12.5 mL. Learning Outcome: 12.4 Perform calculations necessary for administering medications using a volume-control chamber. 30) The physician orders vancomycin (Vancocin) 500 mg q.6h. Directions on the label instruct 500 mg vial to be diluted with 10 mL of sterile water and then further diluted with 100 mL of D5W. How many mL of fluid will there be in the VCC when medication is ready to infuse? 1. 100 mL 2. 10 mL 3. 110 mL 4. 115 mL Answer: 3 Explanation: Dilute with 10 mL sterile water and then add 100 mL of D5W = 110 mL total fluid. Learning Outcome: 12.4 Perform calculations necessary for administering medications using a volume-control chamber. 31) The doctor orders Ampicillin 500 mg q6h to be administered in a volume control chamber in a total solution of 40 mL. The ampicillin vial has a strength of 100 mg/mL. After adding the ampicillin to the VCC, how many mL of fluid will you then also add to the VCC? 1. 5 mL 2. 15 mL 3. 35 mL 4. 40 mL Answer: 3 Explanation: You add 5 mL from the vial, and need another 35 mL to have a total of 40 mL. Learning Outcome: 12.4 Perform calculations necessary for administering medications using a volume-control chamber.