Question

A 48-year-old man with persistent CAP symptoms after 72 hours of amoxicillin 1 g TID (no improvement) is switched to levofloxacin 750 mg daily. Which risk is most concerning in older adults that supports cautious use per guidelines?

Accepted Answer

QT prolongation and tendon rupture

Answer

Hepatitis B reactivation

Answer

Severe hypoglycemia with metformin

Answer

Immediate anaphylaxis in all patients

Answer

Lactic acidosis in all patients

Practice question

A 48-year-old man with persistent CAP symptoms after 72 hours of amoxicillin 1 g TID (no improvement) is switched to levofloxacin 750 mg daily. Which risk is most concerning in older adults that supports cautious use per guidelines?