Test Details

Mnemonic

CDIFF

Ordering Code

3501670

CPT-4 Code(s)

87081, plus 87493 if reflexed to Toxin, at additional cost

Specimen Information

Collect

Stool (unpreserved)

Specimen Preparation

Freeze stool as soon as possible as toxin is heat labile. Send 5.0 grams or 5.0 mL stool frozen in a screw capped plastic container.

Minimum Volume

2.0 grams or 2.0 mL

Transport Temperature

Frozen (-70° C)

Rejection Criteria

Stool in media or preservative. Specimen other than liquid or semi-formed stool. Specimens received room temperature.

Stability

Room temperature: Unacceptable
Refrigerated: 48 hours
Frozen (-20° C): Not established
Frozen (-70° C): 7 days

Methodology

Conventional culture
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Reference Range

Not isolated
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Performing Laboratory

Quest SJC
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