A client who is admitted with a closed head injury after a fall has a blood alcohol level (BAL) of 280 mg/dL (60.8 mmol/L) and is difficult to arouse. Which intervention during the first 6 hours following admission should the nurse identify as the priority? Reference Range: Blood alcohol level (BAL) [0 to 50 mg/dL (0 to 10.9 mmol/L)]