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  • Point-of-care analyzers designed to determine the presence of nonvisible (i.e., occult) blood (i.e., human hemoglobin) in feces samples. These analyzers usually perform automated tests using clinical chemistry and/or immunoassay methods in a short time (several minutes); most of them require the technician to take the sample in a dedicated collector and place it directly in the instrument, usually one specimen at a time. Occult blood feces analyzers are intended to help physicians diagnose blood loss from the gastrointestinal tract; they are mostly used for screening patients for colorectal carcinomas, but are also used to detect bleeding ulcers and/or other malignant diseases in the gastrointestinal tract.
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