Lateral wall infarction is suggested by ST depressions in which leads?

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Multiple Choice

Lateral wall infarction is suggested by ST depressions in which leads?

Reciprocal ST-segment changes help localize myocardial injury. When a region of the heart is infarcted, the leads looking at that area show ST elevations, while the opposite leads show ST depressions as a mirror image. For an inferior wall infarct, you typically see ST elevations in the inferior leads (II, III, aVF) with reciprocal ST depressions in the lateral leads (I, aVL, V5, V6). Therefore, ST depressions in those lateral leads best indicate an inferior infarct, which in this question is interpreted as the reciprocal pattern related to the lateral-lead view. The other patterns do not fit this reciprocal relationship.

Reciprocal ST-segment changes help localize myocardial injury. When a region of the heart is infarcted, the leads looking at that area show ST elevations, while the opposite leads show ST depressions as a mirror image. For an inferior wall infarct, you typically see ST elevations in the inferior leads (II, III, aVF) with reciprocal ST depressions in the lateral leads (I, aVL, V5, V6). Therefore, ST depressions in those lateral leads best indicate an inferior infarct, which in this question is interpreted as the reciprocal pattern related to the lateral-lead view. The other patterns do not fit this reciprocal relationship.

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