Which term is defined as a heart attack?

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Multiple Choice

Which term is defined as a heart attack?

Explanation:
A heart attack is defined as myocardial infarction—the death of heart muscle caused by a prolonged loss of blood supply from a blocked coronary artery. This happens when a plaque in a coronary vessel ruptures and a clot forms, interrupting blood flow and leading to tissue death. The resulting damage distinguishes an infarction from other conditions. Intermittent claudication is leg pain from reduced blood flow during activity; orthopnea is shortness of breath when lying flat due to heart failure; angina is chest pain from temporary, reversible ischemia without permanent heart muscle death.

A heart attack is defined as myocardial infarction—the death of heart muscle caused by a prolonged loss of blood supply from a blocked coronary artery. This happens when a plaque in a coronary vessel ruptures and a clot forms, interrupting blood flow and leading to tissue death. The resulting damage distinguishes an infarction from other conditions. Intermittent claudication is leg pain from reduced blood flow during activity; orthopnea is shortness of breath when lying flat due to heart failure; angina is chest pain from temporary, reversible ischemia without permanent heart muscle death.

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