Routine bacterial pathogens
If suspecting Vibrio cholerae, contact the Medical Microbiology laboratory.
Stool for C.difficile PCR if recent antibiotic exposure or chemotherapy
Stool for ova and parasites X 2 samples 24 hours apart. Giardia, Cryptosporidium, Cystoisospora and Cyclospora are routinely tested
If patient has bloody diarrhea, indicate this on the requisition so that Shiga toxin testing can be performed
If syndrome is compatible with viral gastroenteritis, no testing is required
If Microsporidium testing is indicated (e.g., HIV infected or immunocompromised hosts), please specify this
If amoebic colitis is suspected, request E. histolytica enzyme immunoassay