Question

"When monitoring the electrical activity of a patient's heart, which standard limb lead records the difference in electrical potential between the left leg and the right arm when the left leg is positive and the right arm is negative?

A. Augmented limb lead aVL

B. Bipolar limb lead II (LII)

C. Bipolar limb lead III (LIII)

D. Bipolar limb lead I (LI)"

Answer 1

The bipolar limb lead II (LII) records the potential difference between the left leg and the right arm.

Step-by-step explanation:

The lead that records the difference in electrical potential between the left leg and the right arm when the left leg is positive and the right arm is negative is bipolar limb lead II (LII). Lead II is one of the three standard limb leads in an electrocardiogram (ECG). The voltage between the right arm and the left leg represents the lead II potential and is commonly graphed.