The nurse knows that Type IV Hypersensitivity Reaction involves which of the following?

Histamine release

T-lymphocyte memory cells

Immunosuppression

Antigen/antibody interaction

Answer and Explanation

The Correct Answer is B

Histamine release: Histamine release is characteristic of Type I hypersensitivity reactions (immediate hypersensitivity) rather than Type IV.

T-lymphocyte memory cells: Type IV hypersensitivity is a delayed response mediated by T-lymphocytes, not antibodies.

Immunosuppression: Immunosuppression is not directly related to hypersensitivity reactions.

Antigen/antibody interaction: This is characteristic of Types I, II, and III hypersensitivity reactions, not Type IV.

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Correct Answer is B

Explanation

A. Education on Epi-pen: While education is important, it is not a priority during a severe allergic reaction.
B. Maintaining airway: Airway compromise is the primary concern during a severe allergic reaction due to potential bronchospasm and swelling.
C. Emotional support: Providing emotional support is important but secondary to maintaining the airway.
D. Treat urticaria: Managing skin symptoms like hives (urticaria) is not the top priority when airway obstruction is a risk.

A. Cephalosporin B. Epinephrine C. Diphenhydramine D. Penicillin or Sulfonamide

Correct Answer is D

Explanation

A. Cephalosporin: Though cephalosporins can cause allergic reactions, they are less commonly associated with serum sickness compared to penicillins.
B. Epinephrine: Epinephrine treats allergic reactions and does not cause serum sickness.
C. Diphenhydramine: Diphenhydramine is an antihistamine used to alleviate hypersensitivity reactions.
D. Penicillin or Sulfonamide: These medications are classic triggers for serum sickness, a delayed hypersensitivity reaction involving immune complex deposition.

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The nurse knows that Type IV Hypersensitivity Reaction involves which of the following?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse knows that the priority for a patient experiencing a severe allergic reaction is which of the following?

Correct Answer is B

Explanation

Serum sickness, which is a Type III Hypersensitivity Reaction, may occur in patients that have received which of the following medications?

Correct Answer is D

Explanation

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