Bacteroides fragilis


Standard Precautions

General Information

  • Metronidazole 500mg PO/IV q12hr

  • Higher dose required for CNS infections

Anaerobic Gram-negative rod

  • Most common anaerobic infection

  • Colonizes GI tract of all humans

  • Intra-abdominal abscess/sepsis

  • Rupture intra-abdominal viscera

  • Perianal abscess

  • Tubo-ovarian abscess

Double coverage with piperacillin/tazobactam or carbapenem in addition to metronidazole is not necessary.

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