Elevation in which leads indicates an anterior MI?

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Multiple Choice

Elevation in which leads indicates an anterior MI?

Explanation:
ST elevations reflect injury in the heart wall that the leads are viewing. The anterior wall is best seen in the chest leads around the midline, especially V3 and V4 (often V1–V2 can be involved too). An occlusion of the left anterior descending artery causing an anterior MI classically produces ST elevation in V3 and V4. In contrast, inferior MI shows II, III, and aVF; lateral MI shows I and aVL; septal involvement would be seen in V1–V2. So elevation in V3–V4 most directly indicates an anterior myocardial infarction.

ST elevations reflect injury in the heart wall that the leads are viewing. The anterior wall is best seen in the chest leads around the midline, especially V3 and V4 (often V1–V2 can be involved too). An occlusion of the left anterior descending artery causing an anterior MI classically produces ST elevation in V3 and V4. In contrast, inferior MI shows II, III, and aVF; lateral MI shows I and aVL; septal involvement would be seen in V1–V2. So elevation in V3–V4 most directly indicates an anterior myocardial infarction.

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