The nurse cares for a patient with a head injury. Appropriate nursing interventions for minimizing the risk of increasing intracranial pressure include which of the following?
1. Maintain a liquid diet, perform frequent tracheal suctioning, and turn the client every two hours.
2. Keep the head of the bed flat, turn the client every two hours, and perform nasotracheal suctioning every hour.
3. Maintain the head of the bed elevated at 90°, keep the room dark and quiet, and place the call light within easy reach.
4. Keep the patient's head from flexing or rotating, elevate the head of the bed 30°, and avoid frequent suctioning.