Ova and Parasites

Test Name	Ova and Parasites
Alternate Name(s)	O&P Enteric Helminths (Nematodes, Trematodes, Cestodes, Acanthocephalans) and Balantioides Microscopy
Laboratory Module	Microbiology
Ordering Mnemonic	OP
Specimen Type	Stool
Collection Container	SAF transport media
Container Information	SAF media
Collection Information	The suspected organism may be included under the ‘Test Description’. Please note on the requisition (under other): If the patient has Eosinophilia, HIV, is immunocompromised, has a critical illness or was admitted to ICU, or had a previous parasitic infection. Indicate Country/Region and if the patient is a new immigrant or refugee or returned traveler under ‘Travel’ section of the requisition. It is imperative that the foreign country be identified. Collect a sample in yellow or red top (SAF) vial of the Parasitology Kit. Follow the collection instructions on the instruction sheet provided with the Parasitology Kit. Collect one specimen per day for 3 days in each vial for a total of six (6) specimens. Avoid the use of mineral oil, bismuth, Milk of Magnesia, antacids, compounds containing Kaolin or barium prior to collection. Avoid contamination with urine or water. Have patient pass stool onto a clean, dry bedpan. Transfer a portion of stool containing mucous, blood or pus to the SAF transport media. Do NOT use toilet paper to transfer stool. Select areas of stool that appear blood-stained, purulent or watery. Transfer this to parasite transport media (labeled SAF FIXATIVE). Thoroughly mix 5 mL of stool with the 20 mL of fixative (1:4 ratio).
Test Schedule	Daily
Routine Turnaround Time	7 - 10 days
Critical Values	As any ova or parasites are detected and identified the information is made available to the health care provider.
Lab Process Notes	Only one specimen per patient per collection date will be tested by referral laboratory.
Storage and Transport	Specimen should be transported to laboratory after collection in biohazardous bag. SAF Specimens should be stored and transported at room temperature or alternatively 2-8°C after receipt in the laboratory.
Test Referred To	Offsite, Referral Laboratory

STAFF LAB TESTING INFO