Review Question - QID 212576

A 25-year-old man is brought to the emergency department by police for abnormal behavior in a mini-market. The patient was found passed out in the aisle, and police were unable to arouse him. The patient has a past medical history of alcohol abuse and is not currently taking any medications according to his medical records. His temperature is 99.5°F (37.5°C), blood pressure is 120/87 mmHg, pulse is 50/min, respirations are 5/min, and oxygen saturation is 93% on room air. On physical exam, the patient is minimally responsive. He responds to painful stimuli by retracting his limbs and groaning, but otherwise does not answer questions or obey commands. Which of the following is most likely to be found in this patient?