Test Directory

10048 Ova and Parasites, Conc and Smear

Specimen Type
Specimen Stability
Reference Range
Stool, Sputum or Urine
Ambient - 6 Month(s)
See Report

Specimen Requirements

Specimen Type: Stool
Container: Ova Parasite Collection Kit
Temperature: Refrigerated

Method

Microscopic Examination of Concentrate and Permanent Stained Smear

Schedule

Sunday - Saturday

Turn-Around Time

Send-Out

Instructions/Notes

Place fresh stool in 10% formalin transport vial, as well as PVA transport medium or single Total-Fix(R) vial, within 30 minutes of collection. Add stool to bring the liquid level to the 'fill to here' line on the vial. Mix well. Send specimen(s) at room temperature in the same shipping container. If parasite infestation is strongly suspected, collect at least 3 stool specimens every other day, since a single specimen can be negative. Sputum: The specimen should be a deep expectorated sputum, preferably collected in the early morning. A 24 hour sputum collection is also acceptable. Submit in a sterile screw-capped container, unpreserved or in 10% formalin to increase stability. Urine may be submitted unpreserved for exam for Schistosoma. Collect at mid day. Peak egg secretion occurs between noon and 3 p.m. Do not submit first morning specimen. In patients with hematuria, eggs may be found trapped in blood and mucous in the terminal portion (last-voided portion) of the specimen.

Clinical Utility

Diseases caused by human parasites remain on a worldwide basis among the principle causes of morbidity and mortality. Correct diagnosis of intestinal parasitic infection depends on prope collection, transport, detection and identification of parasites in stool specimens. Symptoms range from malaise to death. Treatment is dependent upon examining multiple stool specimens due to the erratic shed rates of some parasites.

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