Which test is performed to check for hidden blood in stool?

The Stool Guaiac test specifically checks for the presence of hidden (occult) blood in stool. This test uses a chemical reaction to detect hemoglobin, the protein in red blood cells, which can indicate bleeding in the gastrointestinal tract. It is a non-invasive screening tool used to identify potential bleeding issues that may require further investigation.

The Hemoccult is actually a brand name for a type of Stool Guaiac test, which may cause some confusion. However, the general term for the test you are looking for is Stool Guaiac.

Fecalysis is a broader examination of stool that assesses various components, including the presence of parasites or bacteria but is not specifically aimed at detecting hidden blood. Colonoscopy is an invasive procedure that involves looking inside the colon with a camera and is often used for diagnosis after occult blood has been detected through other methods, rather than for initial screening.