Parasites and stool ova exam; Amebiasis - ova and parasites; Giardiasis - ova and parasites; Strongyloidiasis - ova and parasites; Taeniasis - ova and parasites
Stool ova and parasites exam is a lab test to look for parasites or eggs (ova) in a stool sample. The parasites are associated with intestinal infections.
A stool sample is needed.
There are many ways to collect the sample. You can collect the sample:
Do not mix urine, water, or toilet tissue with the sample.
For children wearing diapers:
Return the sample to your provider's office or lab as directed. At the lab, a small smear of stool is placed on a microscope slide and examined.
The laboratory test does not involve you. There is no discomfort.
Your provider may order this test if you have signs of parasites, diarrhea that does not go away, or other intestinal symptoms.
There are no parasites or eggs in the stool sample.
Talk to your provider about the meaning of your test results.
An abnormal result means parasites or eggs are present in the stool. This is a sign of a parasitic infection, such as:
There are no risks.
Beavis, KG, Charnot-Katsikas, A. Specimen collection and handling for diagnosis of infectious diseases. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 23rd ed. St Louis, MO: Elsevier; 2017:chap 64.
DuPont HL, Okhuysen PC. Approach to the patient with suspected enteric infection. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 267.
Hall GS, Woods GL. Medical bacteriology. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 23rd ed. St Louis, MO: Elsevier; 2017:chap 58.
Siddiqi HA, Salwen MJ, Shaikh MF, Bowne WB. Laboratory diagnosis of gastrointestinal and pancreatic disorders. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 23rd ed. St Louis, MO: Elsevier; 2017:chap 22.BACK TO TOP
Review Date: 4/10/2020
Reviewed By: Michael M. Phillips, MD, Clinical Professor of Medicine, The George Washington University School of Medicine, Washington, DC. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
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