<prompt> The earliest manifestations of increased intracranial pressure following head injury is :Ipsilateral papillary dilatationContralateral papillary dilatationAltered mental statusHemiparesis  <response>: Answer is C Altered mental status : Early signs of elevated ICP include drowsiness and a diminished level of consciousness altered mental status. Coma and unilateral papillary changes are late signs and require immediate intervention. -Harrisons 