A patient comes to the emergency room complaining that he has been vomiting for the past 24 hours with black vomitus/emesis. You know that black vomitus may indicate:

Question

Quizplus · Accepted Answer

Black vomitus, also known as melena, indicates the presence of blood that has been acted on by gastric acids. This is a sign of upper gastrointestinal bleeding, which can be caused by various conditions such as peptic ulcers, gastritis, or esophageal varices.

A Patient Comes to the Emergency Room Complaining That He