<prompt> An 18-year-old client is admitted with a closed head injury sustained in a MVA. His intracranial pressure ICP shows an upward trend. Which intervention should the nurse perform firstReposition the client to avoid neck flexionAdminister 1 g Mannitol IV as orderedIncrease the ventilators respiratory rate to 20 breathsminuteAdminister 100 mg of pentobarbital IV as ordered.  <response>: The nurse should first attempt nursing interventions, such as repositioning the client to avoid neck flexion, which increases venous return and lowers ICP.Options B, C, and D: If nursing measures prove ineffective notify the physician, who may prescribe mannitol, pentobarbital, or hyperventilation therapy. 