A 45-year-old male patient presents to the emergency department with a sudden onset of severe headache, vomiting, and confusion. Based on his symptoms and history of a recent head injury, what intervention is most appropriate for managing suspected increased intracranial pressure?
Administer mannitol immediately
Elevate the head of the bed to 30 degrees
Continuously monitor the patient's neurological status
Prepare for immediate intubation and mechanical ventilation