Among the outpatient CAP options, which choice represents a macrolide antibiotic?

Among the outpatient CAP options, which choice represents a macrolide antibiotic?

• A. Macrolide
• B. Amoxicillin
• C. Doxycycline
• D. Levofloxacin

Answer: (A)

Macrolides are a class of antibiotics that work by binding to the 50S ribosomal subunit to inhibit protein synthesis. They’re commonly used in outpatient therapy for community-acquired pneumonia to cover atypical pathogens such as Mycoplasma and Chlamydophila. Among the options, the one that represents a macrolide antibiotic is the label that literally says “Macrolide,” since the others belong to different classes: amoxicillin is a beta-lactam (penicillin-type), doxycycline is a tetracycline, and levofloxacin is a fluoroquinolone. So recognizing the class name points you to the macrolide. In practice, macrolides like azithromycin or clarithromycin may be chosen for outpatient CAP when atypical coverage is desired and there are no contraindications.

Macrolides are a class of antibiotics that work by binding to the 50S ribosomal subunit to inhibit protein synthesis. They’re commonly used in outpatient therapy for community-acquired pneumonia to cover atypical pathogens such as Mycoplasma and Chlamydophila. Among the options, the one that represents a macrolide antibiotic is the label that literally says “Macrolide,” since the others belong to different classes: amoxicillin is a beta-lactam (penicillin-type), doxycycline is a tetracycline, and levofloxacin is a fluoroquinolone. So recognizing the class name points you to the macrolide. In practice, macrolides like azithromycin or clarithromycin may be chosen for outpatient CAP when atypical coverage is desired and there are no contraindications.