Cardiac Medicine Certification (CMC) Practice Exam

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Prepare for your Cardiac Medicine Certification (CMC) Test with comprehensive quizzes, case studies, and helpful materials. Enhance your knowledge and gain confidence before the big day!

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Which leads typically show ST elevation in an anterolateral wall myocardial infarction?

V1-V3
II, III, and aVF
V1-V6
V4-V5

The correct answer is: V1-V6

In an anterolateral wall myocardial infarction, ST elevation is typically observed in the leads that correspond to the affected areas of the heart. The anterolateral region of the myocardium is primarily supplied by the left anterior descending artery and the left circumflex artery. Leads V1 through V6 provide a comprehensive view of the anterior and lateral walls of the heart. Specifically, V1 to V3 reflect the anterior wall, while V4 to V6 encompass both the anterior and lateral walls. This is why seeing ST elevation in all these leads collectively is indicative of an anterolateral myocardial infarction. In contrast, the other options focus on fewer leads or areas which may not adequately reflect the territory involved in an anterolateral myocardial infarction. For instance, leads II, III, and aVF primarily monitor the inferior wall regions, while V1 to V3 alone would not capture the complete anterolateral picture. V4 to V5, while relevant to the anterolateral area, do not include the entirety of the affected leads. Therefore, V1 to V6 is the correct and most encompassing choice for displaying ST elevation in this context.