Review Question - QID 212843

A 24-year-old man presents to the emergency department after a motor vehicle collision. He was the front seat and unrestrained driver in a head-on collision. The patient has a Glasgow coma scale of 15 and is complaining of pain over his lower abdomen. His temperature is 99.3°F (37.4°C), blood pressure is 122/88 mmHg, pulse is 77/min, respirations are 14/min, and oxygen saturation is 99% on room air. A radiograph is obtained as seen in Figure A. Physical exam is notable for blood at the patient’s urethral meatus. A FAST exam demonstrates no intraabdominal free fluid and a bladder with roughly 850 mL of urine in it, though the patient is unable to urinate. The rest of his exam including sensation and strength of his lower extremities is unremarkable. Which of the following is the best next step in management?