Chapter 24: The Digestive System - Mesa Community College

vomiting blood. May be bright red of coffee ground. Hematochezia – bright red blood per rectum. Usually lower GI etiology but can be a brisk upper GI bleed in 10% of cases. Melena – black tarry stool. Can occur with as little as 100ml of blood. Longer time in GI tract. Denotes UGI source in 90% of cases. Current jelly stool – blood and mucus. ................
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