Community-acquired secondary peritonitis: Mild-Moderate intra-abdominal or post-op pelvic abscess

Patient Population: Adult

Diagnosis	Common Pathogens	Drug(s) of First Choice	Alternative Drug(s)	Comments	Expected Duration
Community-acquired secondary peritonitis Mild-Moderate intra-abdominal abscess	E. coli Klebsiella B. fragilis Streptococci spp	Ceftriaxone PLUS Metronidazole OR Ertapenem	For severe beta-lactam allergy: Vancomycin PLUS Aztreonam PLUS Metronidazole		Stop antibiotics 4 days after source control achieved If source control is not obtained, consultation with ID recommended

Diagnosis

Common Pathogens

Drug(s) of First Choice

Alternative Drug(s)

Comments

Expected Duration

Community-acquired secondary peritonitis

Mild-Moderate intra-abdominal abscess

E. coli

Klebsiella

B. fragilis

Streptococci spp