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Alberta Precision Laboratories (APL) Test Directory

Parasite (Protozoal) Screen - Stool

Source Stool
Mnemonic M GIACRY
Specimen Requirements

Submit ONLY ONE stool specimen using the provided collection container.



Add stool to both containers if using the Stool Collection Kit.

Refer to Laboratory Patient Collection Instructions: Collecting Stool Samples for Bacterial Enteric Pathogen Testing, Rotavirus, Clostridium difficile Toxin, Parasite Screen and Ova and Parasites MI6000

DO NOT overfill SAF container. Add stool to "fill line" only.
Adequate mixing of the stool specimen in SAF (sodium acetate/acetic acid/formalin) is critical for optimal preservation. 

Unpreserved stool less than 2 hours old may be transferred to SAF.

Specimen Handling

Deliver specimen and requisition to the lab within 8 hours after collecting.
If delivery to laboratory is delayed, refrigerate specimen up to a maximum of 24 hours.

Leaking sample containers will NOT be accepted.

Additional Information Specimens not accepted from patients who have been in hospital for more than 4 days.

Screening of stool is used to detect Giardia species, Cryptosporidium species and Entamoeba histolytica. These pathogens comprise a significant majority of parasitic infections that are encountered in clinical practice.
Testing Location  CLS Microbiology
Testing Frequency Tuesday-Friday and Sunday, excluding statutory holidays
Alternate Name(s)  Protozoal Screen

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