Reciprocal ST depression in lead aVL is most commonly seen with which STEMI pattern?

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Multiple Choice

Reciprocal ST depression in lead aVL is most commonly seen with which STEMI pattern?

Reciprocal ST depression in aVL happens most clearly when the inferior wall is infarcted. In an inferior STEMI, the infarct current vector runs toward the inferior leads (II, III, aVF), producing ST elevation there. The opposite direction of this vector creates reciprocal ST depression in the high-lateral lead aVL (and often I). So aVL depression is a classic sign pointing to an inferior STEMI. Other patterns can show reciprocal changes too, but this pattern is the most characteristic.

Reciprocal ST depression in aVL happens most clearly when the inferior wall is infarcted. In an inferior STEMI, the infarct current vector runs toward the inferior leads (II, III, aVF), producing ST elevation there. The opposite direction of this vector creates reciprocal ST depression in the high-lateral lead aVL (and often I). So aVL depression is a classic sign pointing to an inferior STEMI. Other patterns can show reciprocal changes too, but this pattern is the most characteristic.

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