Culture, Bacterial, Stool
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To identify pathogenic bacterial organisms in the stool as an indicator for appropriate therapeutic interventions to treat organisms such as Clostridium difficile and Escherichia coli.
Fresh, random stool collected in a clean plastic container.
(Method: Culture on selective media for identification of pathogens usually to include Salmonella. Shigella, Escherichia coli O157:H7, Yersinia enterocolitica, and Campylobacter; latex agglutination or enzyme immunoassay for Clostridium A and B toxins). Polymerase chain reaction (PCR) may be used to identify bacterial, protozoan, or viral pathogens. Negative: No growth of pathogens. Normal fecal flora is 96% to 99% anaerobes and 1% to 4% aerobes. Normal flora present may include Bacteroides, Candida albicans, Clostridium, Enterococcus, E. coli, Proteus, Pseudomonas, and Staphylococcus aureus.