|Investigations||Culture for enteric pathogens
Microscopy for enteric parasites, requests for parasitological investigation should be clearly indicated. Faeces are NOT routinely examined under direct microscopy therefor if Protozoa (such as Giardia, Entamoeba or Cryptosporidium) or other parasites might be involved (because of age, travel, or immuno-suppression) this should be clearly indicated on the request form (a single sample and request form suffice for both bacterial and parasitological studies).
|Inform lab before sending||No||Specimen type||Faeces||Ideal time to take specimen||During episode of diarrhoea||Labelling requirements||click here||How to take the specimen||A blue sterile universal container with spoon, a sterile white capped universal, or a sputum pot. The specimen container should not be filled to the brim. A walnut sized portion of stool or about 10ml of liquid faeces is sufficient.||Transport to the laboratory||As soon as possible. If transport is delayed then refrigerate. Delays of over 48hrs are undesirable.||Test Times||Monday to Friday||Turnround||Up to 72 hrs. May be longer if it is necessary to send the pathogen to a reference laboratory for further work||Additional information||Faecal samples submitted for culture to Bacteriology are routinely screened for enteric pathogens according to clinical information; therefore it is important to provide full clinical details e.g. history of travel abroad, immunocompromised patients, renal impairment or bloody diarrhoea. (A history of bloody diarrhoea or of renal impairment may prompt special investigations on normally commensal organisms such as E. coli). . It is particularly important to provide full clinical details on patients who are immunocompromised or who have returned from travel abroad, so that a check may be made for all relevant pathogens (which range from CMV to cholera).|
|Additional Examination Requests||Please ensure that any requests for additional investigations on the specimen are made within 7 days from the date of the original request.|