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How many specimens should be collected for an Ova and Parasite examination?

April 26, 2017collected OVA parasite specimens

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How many specimens should be collected for an Ova and Parasite examination?

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Initially only one specimen should be submitted for examination. Research has proven that 90% of the parasites, if they are present at all will be recovered from the first specimen. The OAML (The Ontario Association of Medical Laboratories) has released a guideline in November 1998 outlining this important issue. If a negative result is obtained (NPS) from the first specimen and the patient is still symptomatic, a second set of specimens may be warranted.