Question

What leads do you examine initially to determine the possibility of a true posterior wall myocardial infarction?

A. II, III, and aVf
B. V3 and V4
C. I, aVL, V5, and V6
D. V1 and V2

Answer 1

The initial leads to examine for a true posterior wall myocardial infarction are II, III, and aVf. These leads provide a view of the inferior wall of the heart, which is close to the posterior wall.

Step-by-step explanation:

The initial leads that you should examine to determine the possibility of a true posterior wall myocardial infarction are leads II, III, and aVf (Option A)

During a posterior wall myocardial infarction, the electrical activity in the heart muscle of the posterior wall is affected. Leads II, III, and aVf provide a view of the inferior wall of the heart, which is close to the posterior wall. Changes in these leads can indicate the possibility of a posterior wall myocardial infarction.

It is important to note that a 12-lead ECG is often used to diagnose a posterior wall myocardial infarction. In addition to leads II, III, and aVf, leads V7-V9 are also examined to confirm the diagnosis. However, among the options given, leads II, III, and aVf are the initial leads to consider.