Fecal Occult Blood

Fecal occult blood test (FOBT) detects hidden (occult) blood in stool, which may indicate gastrointestinal bleeding from sources such as colorectal cancer, polyps, or ulcers.

Category: Other

Also known as: okultno krvarenje

Reference range: 0–0 (Source: ABIM)

High values may indicate

A positive result indicates the presence of blood in stool, which requires further investigation (e.g., colonoscopy) to identify the source of bleeding.

Low values may indicate

A negative result indicates no detectable blood in stool, which is the expected normal finding.

Source: BloodId admin-reviewed

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