Following repair of an abdominal aortic aneurysm, a 66-year-old man develops severe chest pain, diaphoresis, bradycardia and hypotension. The following is/are true:
belongs to book: ASIR SURGICAL MCQs BANK|Dr. Gharama Al-Shehri|1st edition| Chapter number:12| Question number:137
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a. The electrocardiogram is most likely to show a prominent Q in lead 3 if this is an MI
Pain is the most common complaint in patients with myocardial infarction although 20%–25% are asymptomatic. Inferior MIs involving the right coronary frequently have parasympathetic activity with bradycardia, hypotension and a prominent Q wave in lead 3. The presence of a Q wave indicates a transmural MI which can be confirmed by measurement of the specific isoenzyme for cardiac tissue (CK-MB) since creatine kinase can be elevated non-specifically after stroke or operation.
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