What is the pathophysiology of a myocardial infarct?
a. A portion of the myocardium necroses and scars over.
b. The coronary vessels are narrowed during the attack.
c. The ischemic myocardium causes pain during the attack but is able to regenerate.
d. There is damage to the myocardium but no serious alteration of cardiac output.
ANS: A
The myocardium necroses and scars and does not regenerate. The degree of heart damage is related to the amount of necrosis.
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