to occult blood in the stool
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A positive guaiac test indicates the presence of blood in the stool, which can be an indicator of various gastrointestinal conditions such as ulcers, hemorrhoids, or colorectal cancer. Further evaluation is needed to determine the cause of the blood in the stool.
There's no range in guaiac testing. The choices of results are negative or positive.
Steroids are ulcerogenic, and any patient on steroids needs each stool guaiac tested. If stools are guaiac positive, notify the physician to obtain a prescription for H2-receptor blockers, PPI, or sucralfate (carafate).
It's great that there's no blood in your stool, but many patients can have colon cancer or precancerous colon lesions without having a positive guaiac test. Because so many cases are missed by the test for hidden blood in the stool, colonoscopy makes sense.
GWAY-ak refers to a type of antibody that can be tested for in the stool to detect gastrointestinal infections caused by certain bacteria like Campylobacter jejuni. A positive result indicates the presence of antibodies against this bacteria in the stool sample, suggesting an active infection that may be causing gastrointestinal symptoms. Further evaluation and treatment may be needed based on these test results.
Guaiac-positive discharge means that there was blood in the discharge. This test may be used for breast discharge.
Guaiac testing involves using a special paper or card coated with guaiac resin to detect the presence of blood in a sample. It does not directly involve any specific organs or structures within the body.
The guaiac reaction is based on the principle that the guaiac molecule interacts with certain substances, like blood, causing a color change that indicates the presence of those substances. This reaction is often used to detect the presence of blood in samples, for example in fecal occult blood tests.
The Resin of a tree used as a reagent in tests for the presence of blood
At home, after having a bowel movement, the patient is asked to swipe a sample of stool obtained with a small stick on a card. After three such specimens are on the card, the card is then easily chemically tested for occult blood also.