Test Code CDIFTOX Clostridium difficile Toxin B PCR, Amplified Probe
Additional Test Codes
Compendium Code (Iatric): L700.5005
Polymerase Chain Reaction (PCR) Using GeneXpert®
Specimen must arrive within 5 days of collection.
1 g of loose feces in a screw-capped container. Formed specimen is not acceptable. Formed stool is not typical of disease. Positive results with formed stools may be detecting DNA of the C difficile toxin that is not causing disease (asymptomatic carrier). These results may be misleading. This testing method has only been validated by the manufacturer for non-formed stool samples. There is no data available to back up results of a formed stool sample. The definition of a formed stool is stool that does not take the shape of the container it is in and a swab does not easily break the surface of the sample.
Send specimen refrigerated. Do not freeze.
Note: Specimen source is required on request form for processing.
Children <2 years may carry toxigenic Clostridium difficile as part of their normal GI flora without having disease.
St. Lukes Hospital Laboratory
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding