Review Question - QID 215050

A 65-year-old man presents to the emergency department with 3 hours of weakness. He was cleaning his living room when he experienced sudden onset left-sided arm and leg weakness and numbness. His wife says that he seemed confused and was not able to get words out. An ambulance was called, but all of the symptoms had resolved by the time the patient arrived at the emergency department. He has a past medical history of coronary artery disease and hypertension (on lisinopril and hydrochlorothiazide). He smokes 2 packs of cigarettes per day and drinks socially on the weekends. On exam, temperature is 99°F (37.2°C), blood pressure is 177/92 mmHg, pulse is 88/min and regular, and respirations are 12/min. Neurologic exam is within normal limits. Noncontrast computerized tomography (CT) scan shows no acute intracranial abnormality. What is the most appropriate next step in management?