Review Question - QID 212491

A 23-year-old man presents to the emergency department with wrist pain after a fall. He was at karate practice when he fell to the ground and has experienced persistent wrist pain since then. The patient has no significant past medical history. His temperature is 98.5°F (36.9°C), blood pressure is 122/62 mmHg, pulse is 102/min, respirations are 16/min, and oxygen saturation is 99% on room air. Physical exam is notable for tenderness to palpation along the dorsal radial side of the hand along and proximal to the thumb up to the wrist. A radiograph is obtained as seen in Figure A. Which of the following is the next best treatment for this patient?