The stool C. difficile toxin test detects harmful substances produced by the bacterium Clostridium difficile ( C. difficile) in a stool sample. This infection is a common cause of diarrhea after antibiotic use.
How the test is performed
A sample of a stool is submitted for laboratory analysis. There are several methods used to detect C. difficile toxin in the stool specimen.
Today, an enzyme immunoassay ( EIA ) is most often used to detect substances produced by the bacteria. The EIA is faster than previous culture tests, simpler to perform, and results are available in about an hour. However, it is slightly less sensitive than previous methods. Several stool samples may be needed to get an accurate result.
How to prepare for the test
There are many ways to collect the samples. You can catch the stool on plastic wrap that is loosely placed over the toilet bowl and held in place by the toilet seat. Then you put the sample in a clean container. One ...
Definition A stool Gram stain is a laboratory test that uses different stains to detect and identify bacteria in a stool sample. The Gram stain method is sometimes used to rapidly diagnose bacterial infections. Alternative Names Gram stain of stool; Feces Gram stain How the test is performed You will need to collect a stool sample. There are many ways to collect a sample. You can catch the stool on plastic wrap that is loosely placed over the toilet bowl and held in place by the toilet seat, and then place the sample in a clean container. (One test kit supplies a special toilet tissue that you use to collect the sample.) Do not take stool samples from the toilet bowl water, because this can cause errors. If you need to collect a sample from a child still in diapers, line the diaper with plastic wrap. Position the plastic wrap so that it keeps the stool from any urine. Mixing of urine and stool can spoil a good sample. Your health care provider will give you instructions on when and how to retu...
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