Fecal occult blood testing

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The significance of even one positive finding on fecal occult blood testing in an asymptomatic patient must be recognized and a search for the cause undertaken. Therefore, it is imperative to minimize factors that may yield false-positive results and, when findings are positive, to know how to proceed. Dr Johnson offers invaluable advice to help the physician chart a course that will lead to diagnosis of the source of bleeding with the least risk and cost to the patient.