Ova and Parasites, Concentrate and Permanent Smear

Last Modified: 11/30/2022 11:31:10 AM


Medical Necessity Documentation:  
Client Notes:  
Patient Preparation: Interfering substances-bismuth, barium (wait 7-10 days), antimicrobial agents (wait 2 weeks), gall bladder dye (wait 3 weeks after procedure).
Specimen Requirements: 10 grams or 10 mL fresh stool preserved in 10% formalin transport vial (Ova & parasite collection kit)
Collection Instructions: Place fresh stool in 10% formalin transport vial, as well as PVA transport medium or single Total-Fix® 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.
Minimum Volume: 5 grams or 5 mL stool
Transport & Storage: Temperature/Stability: 6 months Ambient
6 months Refrigerated

Preserved specimens: Room temperature
Unpreserved specimens: Refrigerated (cold packs)
Rejection Criteria: Unpreserved stool • Specimens containing barium • Stool preserved in medium other than parasitology fixative • Received frozen • Stool submitted in expired transport vial • Preserved urine • Unpreserved sputum and urine received room temperature or f
Reference Range: No ova and parasites seen
Critical Ranges:  
Test Comments:  
Methodology: Microscopic Examination of Concentrate • Permanent Stained Smear
Clinical Significance:

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.

Documentation: If Giardia is strongly suspected, please see Giardia Antigen, EIA, Stool, Test Code 8625.
Custom Panel: No

PRODUCTION SCHEDULE

Turn Around Time: 5 to 7 days
Days Performed: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Quest - Chantilly
PHL Test Code: OPCPS
EPIC Test Code: LAB3150
Send Out Test Code: 2679
Alternate Test Names: O & P with Permanent Stain ; O and P with Permanent Stain ; Ova & Parasites, Concentrate and Permanent Smear
Included Tests: Ova and Parasite Concentrate Result; Trichrome Result
CPT Coding: 87177, 87209

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