🏥 USMLE Exam Prep

First-line treatment for community-acquired pneumonia in an otherwise healthy adult is:

A Vancomycin
B Amoxicillin or a macrolide such as azithromycin
C Metronidazole
D Amphotericin B

✓ Correct Answer: Option B

CAP in healthy outpatient: amoxicillin (ATS/IDSA 2019) or macrolide (azithromycin). If comorbidities: respiratory fluoroquinolone or beta-lactam + macrolide. S. pneumoniae is most common cause.

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