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- Ordering Info
To view specimen requirements and codes please select your laboratory:
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Ova and Parasite Concentrate Result, Trichrome Result
Interfering substances - bismuth, barium (wait 7-10 days), antimicrobial agents (wait 2 weeks), gallbladder dye (wait 3 weeks after procedure)
Fresh stool preserved in formalin and PVA. Place fresh stool in 10% formalin transport vial, as well as a PVA transport medium, within 1 hour of collection. Add stool to bring the liquid level to the "fill to here" line on the vial. Mix well.
See Stool Samples for Ova and Parasites (O & P) in the Parasites section of Specimen Collection and Handling.
10% formalin and polyvinyl alcohol (PVA) transport vials
Microscopic Examination of Concentrate • Permanent Stained Smear
No ova and parasites seen
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 proper 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.
The Result and LOINC information listed below should not be used for electronic interface maintenance with Quest Diagnostics. Please contact the Quest Diagnostics Connectivity Help Desk for more information at 800-697-9302.NOTE: The codes listed in the table below are not orderable Test Codes.
|Result Name||LOINC Code||Component Name|
|754||CHARCOT LEYDEN CRYSTALS||11102-1||Charcot-leyden crystals|
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.
* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.