Review Question - QID 214930

A 36-year-old man presents to the trauma bay after a fall from the roof of his home 2 hours prior. Emergency medical responders at the scene found him agitated and vomiting. Upon arrival, his temperature is 98.8°F (37.1°C), blood pressure is 154/92 mmHg, pulse is 95/min, and respirations are 12/min. The physical exam is significant for a confused man with occipital bruising and abrasions on his posterior left arm and back. His Glasgow coma scale is 11 (eyes: 4, verbal: 3, and motor 4). Airway suctioning shows presence of food content and blood in his respiratory secretions. The decision was made to intubate for airway protection and to safely proceed for further assessment. Head CT shows mild cerebral edema with no evidence of intracranial hemorrhage. MRI confirms diffuse axonal injury. Once stabilized, the patient is admitted to the ICU for further monitoring. Later that day, his intraventricular pressure monitor documents pressures between 25-30 mmHg (normal: < 20mmHg) for the past 15 minutes. Which of the following is the most appropriate next step in management?