Question

Your patient is complaining of crushing chest pain. 12 lead ECG shows significant Q​ waves, ST​ elevation, and T wave inversion in leads V3 and V4. What is the most likely portion of the left ventricle that is being​ affected?

A. Anterior wall
B. Left lateral wall
C. Posterior wall
D. Inferior wall

Answer 1

The most likely portion of the left ventricle that is being affected is the anterior wall.

Step-by-step explanation:

The most likely portion of the left ventricle that is being affected in this case is the anterior wall.

Chest pain along with significant Q waves, ST elevation, and T wave inversion in leads V3 and V4 is indicative of an anterior wall myocardial infarction (MI).

The anterior wall of the left ventricle is supplied by the left anterior descending (LAD) coronary artery. Blockage or occlusion of this artery can lead to insufficient blood flow to the anterior wall, resulting in an MI.