A 70-year-old man with a weight of 100 kilograms (220 pounds) and a blood pressure of 160/90 has been told by his doctor that he has angina caused by myocardial ischemia. Which treatment would be beneficial to this man?
ExplanationSeveral drugs have proven to be helpful to patients with myocardial ischemia. Beta receptor blockers (not stimulators) inhibit the sympathetic effects on the heart and are very helpful. Nitroglycerin causes nitric oxide release, resulting in coronary vasodilation. Isometric exercise increases blood pressure markedly and can be harmful, and increased dietary calcium would be of little benefit.