Which investigation is first line for suspected acute cholecystitis?
Answer and explanation
Correct answer: B. Abdominal ultrasound showing gallstones and a thickened gallbladder wall
- Step 1: Murphy's sign with fever and right upper quadrant pain suggests cholecystitis. Step 2. Ultrasound shows stones, wall thickening and pericholecystic fluid without radiation. Answer: Abdominal ultrasound. Why not the others: Most gallstones are not radio-opaque. Barium meal does not show the gallbladder. A head scan has no role.
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