Review Question - QID 215094

A 25-year-old man is brought to the emergency department by paramedics for altered mental status. He was found lying down at a bus stop unresponsive. On arrival, the patient has slurred speech and is somnolent. Further is unable to be elicited. His temperature is 98.0°F (36.7°C), blood pressure is 130/80 mmHg, pulse is 80/min, and respirations are 12/min with a saturation of 97% on room air. Physical exam reveals a sleeping man with miotic pupils. The patient is easily arousable to voice and sternal rub but falls asleep rapidly. He has decreased bowel sounds. He is able to state his name and knows that he is at the hospital and has an otherwise normal neurologic exam. Which of the following is the most appropriate management?