Chronic Stable Angina

A 47-year-old man reports a six-month history of intermittent chest discomfort while playing squash. He describes lower substernal tightness with numbness of the left upper arm only during exertion. He does not smoke. His father died suddenly at the age of 49 years. His blood pressure is 138/84 mm Hg. The level of total cholesterol is 261 mg per deciliter, low-density lipoprotein cholesterol 172 mg per deciliter, and high-density lipoprotein cholesterol 50 mg per deciliter, and the triglyceride level is 113 mg per deciliter. An exercise test is positive, with pain and 1.5 mm of horizontal ST-segment depression at stage 4 of the Bruce protocol. How should the patient's case be managed?