melenic versus melanotic stool Let's talk about your bowels GASTROINTESTINAL HEMORRHAGE (2): Melena. Melena,

GASTROINTESTINAL HEMORRHAGE (2): Melena. Melena, the passage of black, tarry stools, usually implies blood loss greater than 500 ml originating anywhere between the oropharynx and the right hemicolon. Melena occurs most often Melaena Causes Diagnoses Management TeachMeSurgery Gastrointestinal Medical Terms Melena Black, tarry, foul smelling stool Indicates upper GI bleed (digested blood) Common causes: Peptic ulcer, varices Not bright red blood Hematochezia Bright red blood I need an O2 STAT : r nursing

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