Chapter 28: Environmental and Food Allergies

Buttaro: Primary Care: A Collaborative Practice, 6th Edition

Multiple Choice

1. Which immunoglobulin is responsible for initiating the allergic cascade in susceptible individuals who are exposed to allergens?

a. IgG b. IgA c. IgM d. IgE

ANS: D

While IgA, IgG, and IgM are produced to appropriately protect the body, circulating levels of IgE are responsible for the atopic reaction.

Multiple Response

1. When performing diagnostic tests to determine which environmental allergens cause symptoms in an atopic patient, which aspects of scratch testing are preferable to other methods? (Select all that apply.)

a. It has a lower potential for anaphylaxis.

b. It is more sensitive.

c. It is safer.

d. It produces more rapid results.

e. It requires a stepwise approach.

ANS: A, C, D

NURSINGTB.COM a. Egg allergy b. Fish allergy c. Milk allergy d. Nut allergy e. Shell fish allergy

Scratch testing involves scratching the surface of the skin. This method has a lower potential for anaphylaxis, is safer, and has more rapid results. It is not as sensitive as the intradermal method, which requires a stepwise approach.

2. Which food allergies in children may be outgrown in the first decade of life? (Select all that apply.)

ANS: A, C

Both egg and milk allergy may be outgrown within the first decade of life. Fish, nut, and shell fish allergies are more common in adults and have a higher incidence of lifetime allergy.