Part 1 of Essay
Myocardial Infarction, also known as heart attack, coronary thrombosis, or coronary occlusion is the sudden blocking of one or more of the coronary arteries. If the blocked artery involves an extensive area, the person may die. If not, there will still be necrosis of heart tissue and scarring, but other vessels may be able ....

Part 2 of Essay
.... chest which may radiate to the left arm and shoulder. Other symptoms may include restlessness and confusion; the skin may be cold and clammy, dyspnea, cyanosis, a drop in blood pressure, and a drop in body temperature. A rapid and irregular pulse may also be a sign of a resent MI. In the beginning of the twentieth century, bedrest was the only thing that could be done for heart attacks. Then nitroglycerin was found to restore coronary circulation and relieve the pain. Digitalis was found effective for treating a ....