An acute ________ results from a prolonged lack of blood flow to a portion of the heart tissue.

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An acute myocardial infarction, also known as a heart attack, occurs when there is a sudden and prolonged lack of blood flow to a portion of the heart tissue due to a blockage in one or more of the coronary arteries. This can lead to damage or death of the affected heart tissue. Angina pectoris and vasospastic angina are also conditions that can result from reduced blood flow to the heart tissue, but they are not acute and do not necessarily involve tissue damage. Atherosclerosis is a condition characterized by the buildup of plaque in the arteries, which can contribute to reduced blood flow to the heart and other organs, but it is not necessarily acute.

An Acute ________ Results from a Prolonged Lack of Blood