C Difficile GDH Reflex Toxin/PCR

Test Code: TD_6335
CPT Code(s): 87449

$25

Test Details

Alternative Name(s)

C. Diff Toxin
Clostridium difficile antigen
GDH
Glutamate Dehydrogenase

Test Includes

GDH.
If positive, will reflex to Clostridium Difficile Toxin A/B
If Clostridium Difficile Toxin A/B is negative, will reflex to Clostridium Difficile by PCR

Methodology

Enzyme immunoassay (EIA) for clostridium difficile

Rejection Criteria

Formed stools (stools that do not take the shape of the cup)
Room temperature samples
Swabs
Samples submitted in preservative or additives
Samples submitted in tissue paper or diapers
Samples submitted in viral transport media
Leaking containers
Samples submitted in cary blair media

Reference Range(s)

Negative

Specimen Requirements

Preferred Specimen

Stool collection container

Minimum Volume

5 mL fresh stool

Sample Stability

3 days refrigerated
Longer, frozen only one freeze/thaw cycle is allowed.

Transport Temperature

Refrigerated

Collection Instructions

10 mL fresh stool. Refrigerate.
Optimal specimen less than 24 hours.
If specimen cannot be tested within 72 hours, freeze

Alternative Specimen

None