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Catalog ID C DIFF PCR Clostridioides (Clostridium) difficile PCR Assay

Important Note

Formed stool will be rejected. Test will not be repeated with 10 days for a previous negative and 28 days for a previous positive, unless the clinician notes a new onset of diarrhea in the ordering comments. 

This test is not performed on children < 24 months of age. 

CPOE Test Name

CDIFF

Synonyms

Clostridium Difficile PCR

Specimen Type

Stool

Specimen Requirements

1 ml of fresh, diarrheal (liquid or loose) stool.

Storage and Transport

Ambient temperature up to 24 hours. For optimal detection, transport to Microbiology Laboratory within 1 hour.

Causes for Rejection

Use of non-sterile container; delay in transport; leaking specimen; improper labeling; insufficient quantity; formed stool

Test will not be repeated with 10 days for a previous negative and 28 days for a previous positive, unless the clinician notes a new onset of diarrhea in the ordering comments. 

Reference Range

Toxigenic C. difficile negative

Critical Values

positive test

Test Consists

Extraction, amplification, and detection of Clostridioides (Clostridium) difficile toxin B

Performing Lab

Microbiology BA-1672 721-2807

Methodology

Real Time PCR Assay

CPT / HCPCS Code

87493