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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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In polytrauma with blunt abdominal injury, the first investigation to evaluate his abdomen is
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The correct answer is  Ans. (a)USG is the first investigation to evaluate abdomen in bunt trauma.Ref. Schwartz 10th/e p. 179 and 9th/e p. 151; Washington Manual of Surgery 5th/e p. 373 * CT scan is the best investigation.