Mr. Vincent is a 45-year-old salesman who is overweight. At work he suddenly develops severe chest pain and is nauseated. A coworker takes him to a nearby hospital. The emergency department physician orders an immediate ECG. A diagnosis of acute myocardial infarct is made. Mr. Vincent is scheduled for a balloon angioplasty with insertion of a cardiac stent. The surgery is completed and Mr. Vincent recovers with no complications. Margaret, the nurse clinician, is assigned to educate Mr. Vincent regarding his procedure and follow-up care. Describe the cardiac cycle and how it would be affected by a myocardial infarct.

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