Vomiting with coffee brown vomitus is seen in
**Core Concept**
Coffee brown vomitus is a clinical sign associated with upper gastrointestinal bleeding, particularly from a source in the stomach or duodenum. The coffee ground appearance is due to the oxidation of hemoglobin to methemoglobin, which is then mixed with gastric secretions.
**Why the Correct Answer is Right**
The correct answer is related to the pathophysiology of upper gastrointestinal bleeding. When blood from the upper GI tract is vomited, it is exposed to oxygen in the air, leading to the formation of methemoglobin. This oxidation reaction changes the color of the blood from its normal red or pink appearance to a brown or coffee ground-like color. The presence of gastric secretions, such as hydrochloric acid, further contributes to the coffee ground appearance.
**Why Each Wrong Option is Incorrect**
**Option A:** This option might be tempting, but it is not the correct answer. Hematemesis can occur with bleeding from any source, not just upper GI bleeding.
**Option B:** This option is incorrect because coffee brown vomitus is not typically associated with liver disease. While liver disease can cause upper GI bleeding, the coffee ground appearance is more specific to upper GI bleeding from a source in the stomach or duodenum.
**Option C:** This option is not the correct answer. Although coffee brown vomitus can occur with severe vomiting, it is not a specific sign of gastritis. Gastritis can cause vomiting, but the vomitus is not typically coffee brown.
**Clinical Pearl / High-Yield Fact**
A classic exam question related to coffee brown vomitus is to remember that it is a sign of upper GI bleeding, and not just any type of vomiting. The color of the vomitus is a key clue to the underlying diagnosis.
**Correct Answer: B. Coffee ground emesis is typically seen in cases of upper GI bleeding, particularly from the stomach or duodenum.**