Cardiac-Vascular Nursing (CVRN) Practice Exam

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In which EKG leads are changes detected for an anterior AMI?

  1. V2, V3, V4

  2. V5 and V6, I and aVL

  3. II, III, aVF

  4. VI and aVR

The correct answer is: V2, V3, V4

In the context of an anterior ST-elevation myocardial infarction (AMI), correlative changes are primarily detected in the precordial leads. The specific leads that show significant changes for an anterior AMI are V2, V3, and V4. These leads are positioned over the anterior wall of the heart, which is typically supplied by the left anterior descending artery. When ischemia or infarction occurs in this region, it disrupts the normal electrical activity, leading to characteristic changes on the EKG, such as ST elevation or the presence of Q waves. The significance of these leads lies in their ability to directly reflect the electrical activity happening in the anterior portion of the myocardium. Hence, monitoring these leads is crucial for identifying an anterior AMI early in the clinical setting, allowing for prompt intervention and management.

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