Which clinical condition is characterized by hematemesis, hematochezia, dark tarry stool, and signs of hypovolemic shock?

• A. Gastroenteritis
• B. Gastrointestinal bleed
• C. Esophageal varices
• D. Ulcers

Answer: (B)

When you see hematemesis, hematochezia, dark tarry stool, and signs of hypovolemic shock, the main idea is that there is active bleeding somewhere in the gastrointestinal tract causing significant blood loss. Hematemesis shows bleeding in the upper GI tract, melena indicates digested blood from higher up, and hematochezia can occur with a brisk upper GI bleed or a lower GI bleed. The accompanying signs of shock—rapid heart rate, pale cool skin, low blood pressure, and altered mental status—reflect the body’s response to substantial blood loss. Together, these findings point to a gastrointestinal bleed as a whole, which is an emergency requiring rapid assessment, IV access, fluid resuscitation, and urgent transport.

Gastroenteritis is unlikely to produce this combination of vomiting blood and dark tarry stool with shock. Esophageal varices describe a specific source of upper GI bleeding; while they can cause hematemesis, the overall picture here fits a GI bleed in general rather than a single etiologic lesion. Ulcers can bleed as well, but again they don’t alone capture the full pattern of both hematemesis and melena with shock as clearly as the broad GI bleed diagnosis.