Which of the ECG findings would be positive for an inferior wall MI?

a. ST segment depression in leads I, aVL, and V2 to V4
b. Q waves in leads V1 to V2
c. Q waves in leads II, III, and aVF
d. T-wave inversion in leads V4 to V6, I, and aVL


C
Abnormal Q waves develop in leads overlying the affected area. An inferior wall infarction is seen with changes in leads II, III, and aVF. Leads I and aVF are selected to detect a sudden change in ventricular axis. If ST segment monitoring is required, the lead is selected according to the area of ischemia. If the ischemic area is not known, leads V3 and III are recommended to detect ST segment ischemia.

Nursing

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