Review Question - QID 210677

A 45-year-old woman presents to her primary care physician for an annual checkup. She states that she feels well and has no complaints. She lives alone and works as a banker. She smokes 1 cigarette per day and drinks 2 alcoholic beverages per night. She occasionally gets symmetrical pain in her hands where they change from red to white to blue then return to normal again. Her temperature is 98.7°F (37.1°C), blood pressure is 177/118 mmHg, pulse is 82/min, respirations are 15/min, and oxygen saturation is 99% on room air. The patient's hypertension is treated, and she returns 2 weeks later complaining of weight gain in her legs and arms. On exam, bilateral edema is noted in her extremities. Which of the following is the most appropriate next step in management?