Pulmonary Emergencies Practice Test

Outpatient management of community-acquired pneumonia centers on oral antibiotics that reliably cover the common pathogens seen outside the hospital. Amoxicillin works well because it targets Streptococcus pneumoniae, the most frequent cause of CAP. Adding clavulanate to form amoxicillin-clavulanate broadens coverage to beta-lactamase–producing organisms like Haemophilus influenzae and Moraxella catarrhalis, which are also common in outpatient CAP. Because of this effective coverage and favorable safety profile, these options are commonly listed for outpatient CAP treatment. Doxycycline and macrolides can be used as alternatives, but they have considerations such as resistance or varying efficacy; fluoroquinolones are typically reserved for cases with intolerance to first-line agents or higher-risk patients due to safety concerns and resistance.