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The stool guaiac test involves fasting from iron supplements, red meat (the blood it contains can turn the test positive), certain vegetables (which contain a chemical with peroxidase properties that can turn the test positive), and vitamin C and citrus fruits (which can turn the test falsely negative) for a period of time before the test.
Fecal occult blood testing (FOBT), as its name implies, aims to detect subtle blood loss in the gastrointestinal tract, anywhere from the mouth to the colon.Positive tests ("positive stool") may result from either upper gastrointestinal bleeding or lower gastrointestinal bleeding and warrant further investigation for peptic ulcers or a malignancy (such as colorectal cancer or gastric cancer).
A stool culture—the controlled growth of microbial organisms in culture media under laboratory conditions—sometimes is performed to identify specific pathogens in stool. The stool guaiac test (or guaiac fecal occult blood test) is conducted to detect the presence of blood in stool that is not apparent to the unaided eye.
That doesn’t mean you can or should ignore rectal bleeding. Experts agree that it’s always better to be safe than sorry and discuss any blood in your stool with your doctor to see if further ...
A stool test is a medical diagnostic technique that involves the collection and analysis of fecal matter. Microbial analysis (culturing), microscopy and chemical ...
A positive fecal occult blood test: Specialty: Gastroenterology Symptoms: Vomiting red blood, vomiting black blood, bloody stool, black stool, fatigue [1] Complications: Iron-deficiency anemia, heart-related chest pain [1] Types: Upper gastrointestinal bleeding, lower gastrointestinal bleeding [2] Causes
If pale or clay-colored stool (or acholic stool as your doctor might refer to it) is the result of a serious health issue, there are usually other symptoms. Here are some of the reasons you might ...
Gum guaicum, or guaiac resin, [2] is a substance produced from the tree species Guaiacum officinale. It is registered as food additive: as a preservative under the E number E241, and as an antioxidant under E314. [3] Guaiac resin is also used medically for the stool guaiac test.