Laboratory Services

C. Difficile, Antigen

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Updated Test Information:

Test Description
C. Difficile, Antigen
Synonym(s)

Stool Toxin, Stool Antigen, Diarrhea, C Diff Toxin, C Diff Antigen, Stool Pathogen, Fecal Pathogen

Test ID
CDIFF
General Information

Test to detect the presence of C difficile antigen and toxin from stool

Specimen Type

Stool

Specimen Requirements

Stool specimen

Specimen Collection / Processing Instructions

Collect fresh (soft/liquid) fecal specimen in clean airtight container or stool transport media (Cary Blair, C&S)

Minimum Sample Volume

0.5 g or 0.5 mL liquid stool

Stability

Ambient: 2 hours, Refrigerated: 72 hours, Frozen: 72 hours, Ideal specimens are less than 24 hours old

Unacceptable Specimen Conditions

Fecal specimen in Formalin-based fixative (O&P fixative) or alcohol-based fixative (PVA). Fecal specimens collected by colonoscopy. Fecal specimen on a swab. Patient <1 year of age.

Methodology

Enzyme immunoassay (EIA)

Estimated TAT

1-2 days

Testing Schedule

Monday-Saturday

CPT Code(s)

87324
87449

Reference Range

C.Diff Antigen and Toxin not detected

Reflex Conditions

None

Performing Lab

Incyte Diagnostics

LOINC Code(s)

34468-9