Anaerobic Culture

Function

Anaerobic cultures are designed to detect bacteria that can only survive in environments with little to no oxygen. These organisms are often part of the body's normal flora (in the gut or mouth) but can cause severe infection if they enter deep tissues. The culture process involves specialized 'anaerobic jars' or chambers that remove all oxygen to allow these specific pathogens to grow.

Why it is Ordered

Anaerobic infections often present with foul-smelling discharge, gas in the tissue (crepitus), or necrosis. This test is ordered for:

• Deep tissue abscesses (e.g., intra-abdominal or brain abscesses).
• Puncture wounds (like animal bites or stepping on a nail).
• Suspected gangrene or necrotizing fasciitis.
• Chronic sinusitis or pelvic inflammatory disease (PID).

Associated Conditions

• Bacteroides infections: Often following abdominal surgery.
• Clostridium perfringens: The cause of gas gangrene.
• Actinomycosis: Chronic infections characterized by 'sulfur granules' in pus.