A nurse is caring for a patient with a head injury and increased intracranial pressure (ICP). Which of the following interventions should the nurse implement to help prevent an increase in ICP?

Keep the patient in a low flat position to improve perfusion to the brain.

Allow the patient to move around in bed to prevent muscle stiffness.

Administer sedatives as ordered to reduce agitation and prevent straining

Encourage the patient to cough and sneeze to clear respiratory secretions.