Most MIs are caused by a
A)blood clot in the pulmonary artery.
B)coronary artery spasm.
C)blood clot in a coronary artery.
D)arrhythmia.

Question

Quizplus · Accepted Answer

MIs (myocardial infarctions) are most commonly caused by a blood clot forming in a coronary artery, which blocks blood flow to the heart muscle causing it to become damaged or die. The other options may contribute to the development of an MI, but a blood clot in a coronary artery is the primary cause.

Most MIs Are Caused by a