Review Question - QID 216403

A 59-year-old man presents to the emergency department after a sudden onset of slurred speech and right upper extremity weakness. His symptoms lasted 20 minutes but by the time he arrived at the emergency department he was symptom-free. The patient denies any preceding symptoms. He has a history of diabetes, obesity, and hypertension but does not see a physician for his underlying conditions. His temperature is 99.2°F (37.3°C), blood pressure is 140/85 mmHg, pulse is 82/min, respirations are 16/min, and oxygen saturation is 100% on room air. Physical exam reveals normal vision, strength, and sensation with a stable gait. Finger-nose testing and tandem gait are unremarkable. A CT scan of the head is performed and is unremarkable. Which of the following is the most appropriate next step in management?