Chest pain upon physical exertion, when due to coronary artery disease, is termed: Select one: a. Silent angina b. Myocardial infarction c. Stable angina d. Variant (Prinzmetal\'s) angina Solution Stable angina Note - stable angina occur with physical exertion while unstable angina occur withour physical exertion and is more dangerous, Stable angina can be improved by rest and is due to presence of plaque in the vessel supplying blood oxygen to heart whereas unstable angina is kind of heart attack.