<prompt> A 25 years old college student met with road traffic accident and is admitted in casualty. He has marked abdominal distension, pulse rate of 140minute and a BP of 8050 mm Hg. The most appropriate initial investigation would be:-Abdominal paracentesisCT abdomenPlain x- ray of abdomenFAST scan  <response>: Any patient of blunt trauma abdomen - first investigation done is FAST stable unstable After FAST: - If patient unstable - exploratory laparotomy - If patient stable - CECT 