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Clostridium difficile Culture with Reflex to Clostridium difficile Toxin B, PCR : 1005015
MessageToxin is heat labile. Keep refrigerated. Transport to lab within 48 hours. If longer than 48 hours, freeze and transport frozen.
Test Code
CDIFR or 1005015
Alias/See Also
C. diff culture; C. difficile Culture
CPT Codes
87081
Includes
If Clostridium difficile culture is isolated, then Clostridium difficile Toxin B, Qualitative Real-Time PCR will be performed at an additonal charge (CPT code(s): 87493).
Instructions
Stool (liquid or semi-formed).
Transport Container
Transfer 5 grams or 5 mL stool to an unpreserved screw-capped container.
Transport Temperature
Refrigerated.
Specimen Stability
Stability: Unpreserved Stool: Ambient: Unacceptable; Refrigerated: 48 hours; Frozen: 1 week
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received room temperature; Received in Cary-Blair transport; Specimen other than liquid or semi-formed stool; Stool in preservative or mixed with urine; Specimen in wrong transport container.
Methodology
Conventional Culture/ Reflex to PCR
Setup Schedule
Sunday - Saturday
Report Available
4-7 days (From receipt at performing laboratory)
Reference Range
Culture: negative for Clostridium difficile
If reflex to Clostridium difficile Toxin B, PCR: not detected
If reflex to Clostridium difficile Toxin B, PCR: not detected
Clinical Significance
C. difficile causes 50-75% of antibiotic associated colitis and greater than 90% of antibiotic associated pseudomembranous colitis. Pathogenic C. difficile produce two potent toxins, toxin A and toxin B, that cause diarrhea and colitis.
Performing Laboratory
Quest Diagnostics