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