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Test Code OP-STOOL Ova and Parasites, Stool, Examination

Specimen Type



EcoFix transport

Clean container — Send within 2 hours to Microbiology lab

Offsite Collection Instructions

See UCMC collection instructions below.

UCMC Collection Instructions

Specimen Collection: Collect in clean, wide-mouth container. Use spoon in lid of EcoFix container to transfer specimen into EcoFix preservative. Fill to red line and mix.


The following substances may interfere with detection or identification of parasites: barium, mineral oil, bismuth, metronidazole, tetracyclines, antimalarial agents, and nonabsorbable antidiarrheal preparations. Specimen collection should be delayed for up to 2 weeks after discontinuation. Must not be contaminated with water or urine.

Specimen Volume and Container: Entire specimen if possible in clean, sealable container or EcoFix vial. 1 specimen per day for 3 days.

Specimen Transport: Clean container, < 2 hr; EcoFix vial, up to 21 days, no refrigeration

Please see Microbiology Specimen Collection Tables

  • Category “Intestinal”, Type “Stool” in Table 2 PARASITOLOGY


Monday through Friday

Turnaround Time

Minimum 48 hours Monday through Friday

STAT Availability

Not Available

Test Methodology

Direct wet mount; permanent stain; concentrate

Additional Information

  • Send entire specimen if possible.
  • 3 random specimens, 1 per day for each of the 3 days.
  • Protozoa may be destroyed within 2-3 hrs after passage unless transport vials containing preservatives are used.
  • Specimens containing mineral oil, bismuth, iron, and magnesium compounds are unsatisfactory.

CPT Code

87209, 87177

Test Includes

Fecal leukocytes. Not performed on patients who have been in-house for more than 3 days.

Reference Range


Fee Code

58068, 58334