Ischemia causes
A) death to tissue.
B) swelling of tissue.
C) blood disorders.
D) hemorrhage.

Question

Quizplus · Accepted Answer

MI is death of myocardial tissue caused by the development of ischemia. An occlusion of a coronary artery resulting in ischemia and infarct (death) of the myocardium causes sudden, severe substernal or left-sided chest pain (see Figure 10-14). MI results from insufficient oxygen supply, such as occurs when a coronary artery is occluded by atherosclerotic plaque, thrombus, or myocardial muscle spasm (see Figure 10-16). The pain is caused by ischemia, and if ischemia is not reversed within about 6 hours, the cardiac muscle dies. Coronary thrombosis is the most common cause of MI.

Ischemia Causes