melenic versus melanotic stool Hematochezia vs Melena: Symptoms, Causes, Diagnosis, Treatment PPT - GI BLEEDING PowerPoint

PPT GI BLEEDING PowerPoint Presentation, free download ID:6596452 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 Your stool can reveal important clues about what's happening inside your digestive system. While brown is generally considered normal, colors like black, bright red, pale, or persistent yellow may signal underlying conditions What causes black stool? What does it indicate? I need an O2 STAT : r nursing

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