<prompt> A pt is brought to the emergency as a case of head injury, following a head on collision road traffic accident. His BP is 9060 mmHg. Tachycardia is present. Most likely diagnosis isEDHSDHIntra abdominal bleedingIntra cranial hemorrhage  <response>: CDST says Patients with blunt trauma and hypovolemia should be examined first for Intra abdominal bleeding even if there is no ove existence of abdominal trauma Ref: CDST 13th edition Pgno :196 