Cardiovascular Concepts in Critical Care Nursing

Match the terms with the definitions:

Ischemia

Injury

Infarction

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Area of necrotic muscle in the myocardium. New pathologic Q waves are noted on ECG. Lack of depolarization on surface involved.

Penumbra, composed of viable cells. Repolarization is temporarily impaired but is eventually restored to normal

Still potentially viable tissue. Cells in the area do not fully repolarize because of deficient blood supply. Recorded on ECG as ST segment elevation