NURSING EXAM QUESTIONS
PATHOLOGY AND GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Metaplasia
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hyperplasia
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Atrophy
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hypertrophy
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Detailed explanation-1: -The adult mammalian heart has a very limited capacity to regenerate after injury, and the lost cells are replaced by a fibrotic scar. This is followed by remodeling of the surrounding myocardium and eventually leads to impaired cardiac function.
Detailed explanation-2: -An MI results in irreversible damage to the heart muscle due to a lack of oxygen. An MI may lead to impairment in diastolic and systolic function and make the patient prone to arrhythmias. In addition, an MI can lead to a number of serious complications. The key is to reperfuse the heart and restore blood flow.
Detailed explanation-3: -Overview of Infarct Healing. Myocardial infarction (MI) occurs when prolonged reduction in blood flow to a region of the heart results in permanent death of myocytes. Over the following days and weeks, the dead myocytes are gradually replaced by a collagenous scar.