1-2 mL stool specimen in a sterile screw cap leak-proof container or in Cary Blair transport media.
Label source as "stool" on the Pathology, Inc. requisition and avoid the use of ambiguous terms such as "rectal," "anus," etc. NOTE: Stool specimens received in any fixative substance (e.g. formalin, Parasafe) cannot be cultured for enteric pathogens.
A stool culture is used to detect enteric pathogens such as salmonella and shigella. Yersinia and aeromonas are also cultured. E.coli (Shiga tox 1,2) and campylobacter antigen are also routinely tested.