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Detect occult Blood in fecal matter.
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.
The fecal occult blood test is sometimes abbreviated FOBT. Many health professionals call this test a guaiac test, although there are now other technologies available that make this name somewhat anachronistic.
to occult blood in the stool
843
clinical chemistry
True
There's no range in guaiac testing. The choices of results are negative or positive.
It means blood in the feces that is not visibly apparent.
Chromium
Hemoccult
CPT code 82306 - Blood, occult, by fecal hemoglobin determination by immunoassay, qualitative, feces, 1-3 simultaneous determinations- Vitamin D; 25 hydroxy, includes fraction(s), if performed