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Test Code LAB Orderable Only Clostridioides (Clostridium) difficile Toxin, Enzyme Immunoassay, Stool

Important Note

This test is a reflexed test only that is auto ordered by the lab from a positive C. difficile result from the Expanded Infectious Stool Panel (LAB5043), Standard Infectious Stool Panel (LAB3722), and Clostridioides difficile PCR (LAB4412).

A negative result for the C. difficile Toxin EIA after a positive result from the molecular test may indicate that the C. difficile identified in the sample may be a colonizing form of the bacteria, or the toxin levels are too low for the EIA to detect.

Infectious

Additional Codes

Sunquest: SCDEI

Performing Laboratory

UPH Trinity Rock Island

Patient Preparation

Patient should avoid anti-diarrheal medications prior to testing.

Specimen should not come in contact with urine or toilet water during collection.

Collect into a sterile air tight container.

Specimen Type

Preferred: Stool placed in Cary Blair Para-Pak C&S media. 

Acceptable: Raw stool in sterile collection container.

* Stool must be placed in Cary Blair Para-Pak C&S media within 1 hour of collection.

Specimen Stability

Ambient:

  • Raw Stool-1 hour
  • Cary Blair Stool- 5 days

Refrigerated

  • Raw Stool- 1 hour
  • Cary Blair Stool- 5 days

Frozen: Unacceptable

Minimum Volume

Stool must be able to fill Cary Blair Para-Pak C&S media vial up to red line. (5mL of raw stool)

Reference Range

Not Detected

Day(s) Performed

Sunday-Saturday

CPT Codes

87324

Reject Due To

Stool not in Cary Blair C&S media within 1 hour.

Cary Blair media over or under filled.

Formed stool (non-diarrheal).

Method/Test Name

Enzyme Immunoassay

TechLab C. diff Quik Chek

Report Available

1-2 hours after molecular test has resulted.