A 45-year-old male is being transported via air ambulance after a severe head injury from a motor vehicle accident. The patient becomes progressively obtunded during the flight. An initial CT scan indicated a possible intracerebral hemorrhage. What is the most critical intervention to consider during this transport?
Administering corticosteroids to reduce brain swelling
Monitoring and controlling intracranial pressure (ICP)
Hyperventilating the patient to rapidly reduce intracranial pressure
Providing sedation and analgesia to ease the patient's discomfort