Which of the following is the most likely cause of abdominal pain with vomiting and fever in trauma scenarios?

• A. hemorrhage
• B. infection
• C. hypovolemia
• D. evisceration

Answer: (B)

When abdominal pain appears after trauma along with vomiting and fever, the clue is an inflammatory or infectious process inside the abdomen, such as peritonitis from an intra-abdominal injury. Fever indicates the body's immune response to infection, and vomiting can result from peritoneal irritation. This pattern points to infection rather than pure bleeding or a wound with exposed organs.

Hemorrhage would more often show signs of hypoperfusion—low blood pressure, rapid, weak pulse, cool/clammy skin—rather than fever. Evisceration presents with an openly exposed abdominal contents wound, which is a distinct, visible finding and does not primarily explain fever with vomiting. So infection best fits the symptom combination in a trauma context.