HESI RN 311 Pharmacology | Nurselytic

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HESI RN 311 Pharmacology Questions

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Question 1 of 5

A client with a history of anaphylactic reaction to penicillin receives a prescription for cephalexin 500 mg PO twice daily. Which action should the nurse take?

Correct Answer: A

Rationale: Contacting the provider (
A) is priority due to a 1-4% cross-reactivity risk between penicillin and cephalexin (a cephalosporin) in penicillin-allergic patients, especially with anaphylaxis history. Antihistamines (
B) cannot prevent anaphylaxis. Administering without consultation (
C) risks severe reaction. Monitoring (
D) is secondary to preventing exposure.

Question 2 of 5

Correct Answer:

Rationale:

Question 3 of 5

Correct Answer:

Rationale:

Question 4 of 5

Correct Answer:

Rationale:

Question 5 of 5

Correct Answer:

Rationale:

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