Review Question - QID 214261

A 58-year-old man presents to the emergency department after being found down. He sustained a head strike 1 day prior to presentation. Over the course of the day, the patient appeared more fatigued and became less interactive. He recently had an acute myocardial infarction requiring stent placement and initiation of aspirin and ticagrelor. Upon arrival to the emergency department, the patient’s blood pressure is 195/105 mmHg, pulse is 40/min, and respirations are 7/min. The patient is immediately intubated and undergoes a CT scan of the head without contrast, which demonstrates an epidural and intraparenchymal hemorrhage along with intraventricular extension. He is admitted to the intensive care unit for further management. At the 24-hour mark of his comatose state, his temperature is 98°F (36.7°C), blood pressure is 140/90 mmHg, pulse is 70/min, and respirations are 16/min. He does not open his eyes, grimace, or move to noxious stimuli with firm supraorbital pressure. His pupils are 8 mm, fixed, and unreactive to light. He has no corneal, vestibulo-ocular, cough, or gag reflex. CT head without contrast demonstrates slightly worsened hemorrhage from the previous scan. Which of the following is the most appropriate next step in management?