Ova and Parasites, Stool

Test Code

Preferred Specimen

5 - 10 mL. Fresh Random Stool

Instructions

Consider Giardia and/or Cryptosporidium Screen(s) first. If symptoms persist or travel history suggests parasite other than Giardia, then proceed with O&P. Recommended screening procedure is 3 random specimens, one each day or one every other day and no more than two specimens per hospital admission. Possible exceptions include severely immunocompromised patients, close contacts of infected patients or patients with recent travel history. Notify Laboratory. Wait at least one week after barium procedures or laxative before collecting specimen. Specimens containing urine, water, castor oil, Barium, Bismuth or Metamucil will be rejected. Liver aspirations should be obtained from the edge of the abscess, not the center. Test includes: Direct Wet Mount, Concentration and Permanent Stained Smear.

Transport Container

Para-Pak OP Kit containing ZN-PVA and Formalin (Empty Vial Optional)

Transport Temperature

Ambient if ParaPak preservative is used. Fresh specimens require immediate transport or refrigeration.

The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.