Gastroenterology

Ova and Parasites

Normal Range
Negative
Sample Type
Standard
Fasting
No
Unit
N/A

A microscopic examination used to detect the presence of parasites (protozoa or helminths) and their eggs (ova) in a stool sample. Within a Complete Stool Examination, this test is the gold standard for diagnosing parasitic infections like Giardia, Entamoeba, or Hookworm, which cause chronic diarrhea, abdominal pain, and malabsorption.

Why Context Matters

Parasites are shed intermittently. A single negative result does not rule out infection; three samples collected on different days are often required for definitive diagnosis. Recent use of antibiotics, antacids, or bismuth can also mask the presence of parasites.

Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.

Clinical References

Source-of-truth databases and clinical guidelines for Ova and Parasites:

Related Indicators

DR

Medically Reviewed by Dr. Binoy Babu, MBBS

Board Certified Doctor • 10+ Years Clinical Experience

Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.

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