Which condition is defined as heart attack caused by blockage of the heart's blood vessels?

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Multiple Choice

Which condition is defined as heart attack caused by blockage of the heart's blood vessels?

Explanation:
A heart attack happens when a blockage in a coronary artery stops blood flow to part of the heart muscle, and without oxygen that tissue begins to die. That dying tissue is called a myocardial infarction. Ischemia is related but means reduced blood flow that can cause chest pain without yet causing tissue death. The other terms are ECG features or rhythms (P wave representing atrial depolarization and normal sinus rhythm), not definitions of a heart attack.

A heart attack happens when a blockage in a coronary artery stops blood flow to part of the heart muscle, and without oxygen that tissue begins to die. That dying tissue is called a myocardial infarction. Ischemia is related but means reduced blood flow that can cause chest pain without yet causing tissue death. The other terms are ECG features or rhythms (P wave representing atrial depolarization and normal sinus rhythm), not definitions of a heart attack.

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