On the 3rd day following an acute myocardial infarction, the client is being discharged home. The nurse is explaining how the heart tissue heals following an MI. "Since today is your 3rd day after your heart attack, the tissue is:
A) Soft, mushy, and yellow."
B) Acutely inflamed."
C) Forming granulation tissue."
D) Developed a fibrous scar."
Ans: B
Feedback:
Approximately 2 to 3 days post–myocardial infarction, an acute inflammatory response develops in the area surrounding the necrotic tissue. The damaged area is gradually replaced with vascularized granulation tissue, which in turn becomes less vascular and more fibrous in composition. At 4 to 7 days, the center of the infarcted area is soft and yellow. By the 7th week, the necrotic area is completely replaced by fibrous scar tissue.
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