|Mnemonic: ||[ST O/P]|
|Name: ||Ova And Parasite, Fecal|
|Specimen: || Preserve 2 grams of stool in ParaSep-SF with AlcorFix preservative within one hour of collection or deliver fresh sample to the laboratory within 30 minutes.|
This test does NOT include a test to specifically detect Cryptosporidium, Cyclospora, Isospora or Microsporidium. Refer to individual tests for these organisms.
|Transport Temp: ||Store and transport sample at Room Temperature.|
|Ref Lab/Code: ||ARUP 2002272|
|Reference Range: ||None detected|
| Method: ||Concentration /Trichrome Stain/Microscopic Exam|
|Note: ||Specimen collection recommendation: Three specimens collected over a ten-day period is optimum. Specimens analyzed to determine treatment efficacy should be collected 3 - 4 weeks after therapy completion. Antibiotics may affect results of exam as well as antacids, mineral oil or anti-malarials.|
Samples must be collected before intestinal X-rays are taken. Wait for 5-10 days after barium or bismuth have been given or 2 weeks after receiving gallbladder dye.
If it is necessary to collect a purged specimen, saline cathartics only should be used (sodium sulfite or buffered phospho-soda). Mineral oil, bismuth or magnesia compounds are unsatisfactory.
Do not collect on patients that have been inpatients for >72 hours unless admitting diagnosis is gastroenteritis or patient is immunocompromised. Nucleic acid tests for C.Difficile toxin should be considered for these patients.
Recommendation: A complete microscopic examination for ova and parasites should be limited to patients with immunocompromised condition, pertinent travel history, exposure history, or high pre-test probability for parasitic infection. In select clinical contexts, species-specific serology may be the preferred test.
|Processing Info: ||Formalin and PVA preservative are also acceptable.|
Stool Sample Collection, Ova & Parasites