Stable angina is defined as: a. Chest pain that usually starts with physical exertion and is relieved by rest. b. A decreased amount of oxygen available to the tissue cells, due to decreased blood supply. c. Death of part of the cardiac muscle caused by a blockage in on or more of the coronary arteries. d. Chest pain that is not relieved with rest or nitroglycerin; usually lasts longer than 30 minutes. Nead cten hy cten

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