Which of the following is a classical inferior wall MI lead grouping?

Study for the PANCE Cardiology Test. Enhance your knowledge with comprehensive flashcards and multiple-choice questions. Each question comes with hints and detailed explanations. Prepare thoroughly for your exam!

Multiple Choice

Which of the following is a classical inferior wall MI lead grouping?

Inferior wall infarction is reflected on the ECG by ST elevation in the inferior-viewing leads: II, III, and aVF. These leads look at the bottom portion of the heart, so when the inferior wall is ischemic, the electrical injury produces the classic ST elevations in those specific leads. This pattern is most commonly due to occlusion of the right coronary artery (in a right-dominant circulation), though variations can occur. You may also see reciprocal changes, such as ST depression in the anterior leads (like V1–V3) or lateral leads, but the defining grouping for an inferior wall MI is ST elevation in II, III, and aVF.

Inferior wall infarction is reflected on the ECG by ST elevation in the inferior-viewing leads: II, III, and aVF. These leads look at the bottom portion of the heart, so when the inferior wall is ischemic, the electrical injury produces the classic ST elevations in those specific leads. This pattern is most commonly due to occlusion of the right coronary artery (in a right-dominant circulation), though variations can occur.

You may also see reciprocal changes, such as ST depression in the anterior leads (like V1–V3) or lateral leads, but the defining grouping for an inferior wall MI is ST elevation in II, III, and aVF.

More practice questions