A patient is seen in a hospital clinic for chronic cough and fever.The physician suspects community-acquired pneumonia due to Haemophilus influenzae.The patient is prescribed an antibiotic and sent home.Which of the following antibacterial agents would be most appropriate for this patient?

Question

Quizplus · Accepted Answer

Cephalexin is a first-generation cephalosporin antibiotic that is effective against H. influenzae, which is a common cause of community-acquired pneumonia. Rifampin is not typically used as a first-line agent for pneumonia caused by H. influenzae, and penicillin and Septra are not effective against this organism.

A Patient Is Seen in a Hospital Clinic for Chronic