Ova and Parasites, Concentrate and Permanent Smear
Test code
CPT code(s)*
Test resources
Test FAQ
Details
Includes
Ova and Parasite Concentrate Result, Trichrome Result
Methodology
Microscopic Examination of Concentrate • Permanent Stained Smear
Alternative name(s)
O and P with Permanent Stain
Specimen requirements | |
|---|---|
| Patient preparation | Interfering substances: Bismuth, barium (wait 7-10 days), antimicrobial agents (wait 2 weeks), gallbladder dye (wait 3 weeks after procedure) |
| Preferred specimen(s) | 10 grams or 10 mL fresh stool preserved in 1 single Total-Fix® transport vial or 10% formalin and polyvinyl alcohol transport vials |
| Alternative specimen(s) | 25 mL urine in a sterile screw-cap container • 20 mL sputum or BAL in a sterile screw-cap container or with 10% formalin |
| Minimum volume | 5 grams or 5 mL stool • 10 mL urine (unpreserved) • 2 mL sputum or BAL |
| Collection instructions | Note: Tissue samples should be sent to pathology. Stool: Place fresh stool in a single Total-Fix transport vial or 10% formalin transport vial, as well as PVA transport medium, 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. If Giardia is strongly suspected, please see Giardia Antigen, EIA, Stool, Test Code 8625. Urine: 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 urine specimen. Trichrome Stain is not performed on non-stool samples. 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-cap container, unpreserved or in 10% formalin to increase stability. Trichrome Stain is not performed on non-stool samples. |
| Transport container | Total-Fix transport vial 10% formalin and polyvinyl alcohol transport vials Urine submitted in a sterile screw-cap container Sputum or BAL submitted in a sterile screw-cap container or with 10% formalin |
| Transport temperature | Stool, sputum, and BAL (preserved): Room temperature Urine, sputum, and BAL (unpreserved): Refrigerated (cold packs) |
| Specimen stability | Select a service area to view this section. |
| Reject criteria | Unpreserved stool • Specimens containing barium • Stool preserved in medium other than those listed as acceptable • Preserved urine • Liver abscess or aspirate |
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 guidance 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.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
The tests listed by specialty and category are a select group of tests offered. For a complete list of Quest Diagnostics tests, please adjust the filter options chosen, or refer to our Directory of Services.