General Information

UPHSM LIS Test #: 354
Schedule: Daily
Testing Time: 1 Day
Testing Lab: UP Health System-Marquette

Specimen Info
Only 1 specimen type required, unless otherwise specified

Volume: 5 mL
Temperature: Refrigerate
Tube Type: Stool Fresh
Collection Info:
UNPRESERVED liquid or soft stools are accepted.

Specimens are stable for 4 days at refrigerated temperature.
Ambient specimens are stable for 2 days.


Real Time PCR or loop-mediated isothermal amplification.

Clinical Utilities

Test for the presence of the C. difficile bacteria that could produce toxin A and B.

If the PCR test is positive, it is recommended to order the C. difficile toxin by EIA test.
Due to the stability of C diff toxin, it is recommended that this EIA test be ran AFTER a positive C.diff PCR result, by the IDSA and SHEA.

CPT Codes


* The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding
is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Reference Range