Test: Ova and Parasite, Stool, Foreign Travel 
  Synonym: O&P, foreign travel 
  Method: Concentration procedure with Trichrome stain and microscopic examination 
  Availability: Monday - Friday; results next day 
  Specimen: Stool 
  Collection Device: Use Proto-fix vial for preservation and add stool to fill line marked on Proto-fix vial. Seal and shake vigorously. Add bloody or watery portions of stool if present. 
  Volume: Walnut size stool specimen or 10.0 mL of stool in preservative. 
  Storage/Transport: Ambient 
  Unacceptable: Specimens in PVA and formalin, dry specimens, leaking containers, specimens contaminated with oil, barium, or urine, mutliple specimens in 24 hour period, delayed transport to the lab 
  Specimen Stability: Specimen is stable up to 4 days if in proper preservative. 
  Reference Interval: No Ova & Parasites seen 
  Reportable Disease:  
  Comments: Collection of three specimens over a 10 day period is optimal. Indicate suspected parasites and patient history if applicable. Specimens analyzed to determine efficacy of treatment should be collected 3 - 4 weeks after treatment. Preservative available from Regional Pathology Services. This test is for patients who have had foreign travel or continued symptoms. If pinworm is suspected, pinworm collection kits are available from Regional Pathology Services and should be submitted instead of stool. 
  Revised: 7/6/2011