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CCRN Critical Care Nursing

Category - Adult

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When an ischemic event happens, when does myocardial cell death begin?

Immediately
After 20 minutes of ischemia
After 60 minutes of ischemia
3-4 hours after ischemia

Explanation

Answer: B - During an ischemic event, myocardial cell death begins 20 minutes after ischemia. The damage is still reversible at this point- it becomes irreversible after approximately 3-4 hours of ischemia.

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