melanotic stool test The Quantity of Blood Required to Produce a Tarry Stool. How much? Melena, characterized by black tarry stools, can occur with as little as 50 cc of blood in the stomach. How Decisions: A 20-year-old male with
Decisions: A 20 year old male with dark stool Department of Emergency Medicine Saint John When is stool color concerning? Fecal occult blood test (FOBT) for detecting hidden blood in stool What does melena indicate in stool?
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