Question
Based on the ECG, which coronary artery is most likely involved in this myocardial infarction?
A. Right Coronary artery.
B. Posterior Interventricular Artery.
C. Left Marginal Artery.
D. Left Coronary artery.
Show Answer
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Correct Answer » A
Explanation
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Answer. A.: Right coronary artery
- In the ECG, ST elevation is noted in leads (leads II, III, and aVF).
- These leads represent the inferior portion of the heart.
- Recalling the coronary anatomy, the right coronary artery (RCA) supplies the inferior wall of the myocardium as well as the right ventricle and posterior wall.
