Difficulty: Medium
Average Score: 95%
Full-length
The nurse is caring for a client with pneumonia who is allergic to penicillin. Which antibiotic is safest to administer to this client?
Correct answer
C
Rationale
Erythromycin is a macrolide, safe for penicillin-allergic clients, unlike cefazolin, amoxicillin, or ceftriaxone, which are beta-lactams with cross-reactivity risks.