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Antimicrobial Susceptibility Panel, Anaerobic Bacteria, MIC (Gradient)

Test Code
70242


Includes
Ampicillin/Sulbactam
Clindamycin
Imipenem
Meropenem
Metronidazole
Penicillin


Preferred Specimen
Pure culture of anaerobic isolate collected in an Amies gel transport swab, Amies liquid elution swab (ESwab®), or equivalent


Transport Container
Amies swab or equivalent in a double-wall safety container


Transport Temperature
Refrigerated (cold packs)


Specimen Stability
Room temperature: Determined by viability
Refrigerated: Determined by viability
Frozen: Unacceptable


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Isolate in thioglycollate broth • Aerobic slant, plate or swab • Frozen isolates (unless in Glycerol broth)


Methodology
Gradient Diffusion

Reference Range
See Laboratory Report


Clinical Significance
Resistance of anaerobic organisms to antibiotics has been increasing in recent years. Significant increases in resistance are now seen with non-Bacteroides fragilis group gram-negatives and other genera such as Clostridium, Fusobacterium, Prevotella, and Peptostreptococcus. Since negative therapeutic outcomes are directly associated with antimicrobial resistance, accurate, timely susceptibility testing of anaerobes has become more important.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.