A STEMI typically
A)damages only the innermost layer of myocardium.
B)does not cause the development of significant Q waves on the EKG.
C)is dangerous because it can herald a subendocardial MI soon to come.
D)is an MI that damages the full thickness of the myocardium in a certain area.

Question

Quizplus · Accepted Answer

A STEMI (ST-elevation myocardial infarction) is an MI that damages the full thickness of the myocardium in a certain area. This is why there is ST-segment elevation on the EKG, which differentiates it from a subendocardial MI that only affects the innermost layer of the myocardium. A STEMI can also cause significant Q waves on the EKG, indicating permanent damage to the myocardium. While a STEMI is a serious condition in itself, it does not necessarily mean that a subendocardial MI is imminent.

A STEMI Typically