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Question
During myocardial infarction, which of the following changes occur?
During myocardial infarction, which of the following changes occur?
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Solution
The correct option is D ST is elevated
Myocardial infarction (MI) commonly known as a heart attack, occurs when blood flow stops to part of the heart causing damage to the heart muscle. ST elevations refers to a finding on an electrocardiogram, where the ST segment is abnormally high above the baseline. The ST segment corresponds to a period of ventricle systolic depolarization, when the cardiac muscle is contracted. Subsequent relaxation occurs during the diastolic repolarization phase. ST elevation in select leads occurs in MI. ST elevation only occurs in full thickness infarction.
Myocardial infarction (MI) commonly known as a heart attack, occurs when blood flow stops to part of the heart causing damage to the heart muscle. ST elevations refers to a finding on an electrocardiogram, where the ST segment is abnormally high above the baseline. The ST segment corresponds to a period of ventricle systolic depolarization, when the cardiac muscle is contracted. Subsequent relaxation occurs during the diastolic repolarization phase. ST elevation in select leads occurs in MI. ST elevation only occurs in full thickness infarction.
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