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ID:612 Faces culture for enteric pathogens
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DescriptionGastroenteritis causes significant morbidity. The laboratory routinely cultures for Campylobacter, Salmonella, Shigella species and E. coli O157. It is important to include a travel history and important details such as "watery diarrhoea" on the request so that we can decide to look for other enteric pathogens that are not routinely cultured..
Indication Samples submitted on patients who have been in hospital longer than 3 days will only be tested for C.difficile
Additional InfoIf E.coli 0157 or typhoid is strongly suspected or if the patient has any of the following clinical details; HUS, PUO, history of travel with fever, then requests should clearly be marked "Danger of Infection"
Concurrent TestsRotavirus testing by enzyme immunoassay (EIA) will automatically be carried out on all samples submitted on patientís under 5 years of age Cryptosporidium and Giardia testing by EIA will automatically carried out on patients with a travel history, appropriate clinical details and liquid stool samples.
Dietary Requirementsna
Interpretation

DepartmentMicrobiology
SampleStool
TubeFaeces
Tube Picture
Collection Conditions Collect specimens as soon as possible after onset of symptoms and where possible before antimicrobial therapy. Shigella species may not survive the pH changes that occur in stool specimens which are not promptly delivered to the laboratory even if refrigerated. For Rotavirus, peak viral counts occur on days 3-5 after onset of symptoms. If processing is delayed, refrigeration is preferable to storage at ambient temperature.
Min. Vol 2g/2ml
Freq.once

Ref. Range (Male)
Ref. Range (Female)
Ref. Range (Paed)
Ref. Range Notes
Units - Not Defined -
IP Acute TAT5 days
IP Routine TAT5 days
GP Acute TAT5 days
GP Routine TAT5 days
Turnround CommentNegative results may be available considerably earlier than stated turnaround time.

Originally edited by : Dr M Denton. Review due on 02/02/2019 10:17:13. Published By K Roberts on 02/02/2018 10:17:13.