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Test Code CDT GDH/Tox CLOSTRIDIOIDES DIFFICILE GDH AG/Toxin

Aliasis

C diff, CDT

Patient Preparation

No special patient preparation required

Special Collection Instructions

Collect directly into a clean dry container. Do not place in preservative. Stool must be liquid.

Collection Method

Stool collection

Minimum Volume

1.0 mL

Container

Sterile container
Cary Blair or C&S container

Preferred Specimen

Raw liquid stool

Acceptable Specimen(s)

Raw liquid stool in sterile container

Reference or Target Ranges

Negative for Clostridioides difficile

Reportable Units

Positive/Negative

Critical Value

Positive

Reasons for Rejection

Other:                           

Formed Stool, QNS, contaminated, Improperly labeled, Improper specimen type

 

Patient is <2 years

Patient has had a Positive result in last 28 days or Negative result in the past 7 days.

Specimen Stability

Ambient

N/A

Refrigerated

72 Hours

Performance Information

Days and Time Performed

Daily between 0700-1500

Expected Turn Around Time

2-hours from the time specimen is received into Microbiology Department

Performing Bench

CRMC Serology

Additional Information / Important Notes

If the interpretation is Indeterminate, it will reflex for CDT PCR confirmation. The following mnemonic will be included in the patient report: “The presence or absence of toxigenic C diff cannot be determined using the EIA methodology of this assay. A CDT by molecular method will be performed.”

Methodology/Method Description

Enzyme Immunoassay screen