The document discusses coronary artery disease, angina pectoris, and myocardial infarction (MI). It defines these conditions and describes their causes, types, clinical manifestations, complications, treatments, nursing care, and prevention. Coronary artery disease is the accumulation of plaque in the coronary arteries restricting blood flow. Angina pectoris is chest pain or discomfort caused by an imbalance of oxygen supply and demand to the heart. There are three types of angina. MI occurs when a coronary artery is completely blocked, causing death of heart muscle tissue. The document outlines signs and symptoms, management, and complications of MI.