Mar 6, 2024 · There are four laboratory tests used to diagnose Clostridioides difficile infection or CDI.

C. diff testing is most often used to find out if C. diff is causing diarrhea. But diarrhea can have many causes, so the test may be used with tests for parasites and other bacteria that also …

Rarely, to help confirm a diagnosis of C. difficile infection, a health care provider might check the inside of the colon. Tests used are either flexible sigmoidoscopy or colonoscopy.

Sep 30, 2025 · The test is done to see if diarrhea that won't go away was caused by Clostridioides difficile (C. diff) toxins.

Oct 26, 2022 · C. difficile toxin is very unstable and degrades at room temperature in as short as two hours. False negative results occur when specimens are not kept refrigerated until testing …

Strict testing criteria should be in place to assure that only appropriate patients are being tested for C. difficile. Routine testing should be avoided in patients who are less than 2 years of age.

The currently available tests for CDI, particularly the molecular tests (C diff PCR and GI Panel) are highly sensitive and may detect levels of the bacteria which are not clinically meaningful.

C. diff stands for Clostridioides difficile, a highly contagious bacterial infection. It causes diarrhea and colitis.

Sep 30, 2025 · This test usually doesn't cause any pain or discomfort. There is a chance you can spread the infection if you don't wash your hands well when you collect the stool sample. …

You can also click here to read the full guide on C. diff testing. It explains each test in plain English, shows how to interpret different result combos, and helps you make sense of your …