What is the electrical axis of the patient's heart if lead I is predominantly negative and lead aVF is predominantly positive?
A)A normal axis (no deviation)
B)Right axis deviation
C)Left axis deviation
D)Extreme right axis deviation

Question

Quizplus · Accepted Answer

The electrical axis of the heart is determined by the direction of the overall flow of electrical activity during depolarization. If lead I is predominantly negative and lead aVF is predominantly positive, it indicates that the electrical axis is pointing downward and to the right, which is consistent with right axis deviation.

What Is the Electrical Axis of the Patient's Heart If