What is the typical duration for treating community-acquired pneumonia according to guidelines?

• A. Ten days.
• B. Three weeks.
• C. Five to seven days.
• D. Indefinite.

Answer: (C)

Five to seven days is the typical duration. Modern guidelines favor a short course once the patient is clinically stable, rather than a fixed longer treatment. A common approach is to complete at least 5 days of antibiotics and stop when the patient has been afebrile for 48–72 hours and shows clear clinical improvement, such as better breathing and the ability to take oral meds. This shorter course provides similar cure rates to longer therapy but with fewer adverse effects and less antibiotic exposure, which helps reduce resistance and other risks. Longer regimens like ten days or three weeks are usually unnecessary for uncomplicated community-acquired pneumonia, and indefinite therapy is not appropriate. Exceptions exist for certain severe cases or specific pathogens, where longer duration may be needed, but for most patients the five-to-seven-day approach is standard.