Guaiac smear test; Fecal occult blood test - guaiac smear; Stool occult blood test - guaiac smear
What the risks are:
There can be false-positive and false-negative results. Using proper stool collection technique, avoiding certain drugs, and observing dietary restrictions can minimize these measurement errors.
Review Date: 11/10/2004
Reviewed By: Christian Stone, M.D., Division of Gastroenterology, Washington University in St. Louis School of Medicine, St. Louis, MO. Review provided by VeriMed Healthcare Network.
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