Question

In which of the following locations should the EKG tech place the electrodes for a 3-lead ambulatory monitor?

a) Right arm, left arm, and left leg
b) Right leg, left leg, and chest
c) Right arm, left leg, and chest
d) Right arm, right leg, and left leg

Answer 1

The correct placement for a 3-lead ambulatory monitor's electrodes is the right arm, left arm, and left leg. This setup allows for the recording of the lead II potential, which is essential for analyzing heart function.

Step-by-step explanation:

For a 3-lead ambulatory monitor, an EKG tech should place the electrodes on the right arm, left arm, and left leg. This configuration traditionally forms what is known as lead II, which monitors the heart's electrical activity and is the most frequently graphed and examined voltage during ECG tests. The voltage difference measured between the right arm and the left leg electrodes provides a clear picture of heart muscle function, and it is valuable for detecting various cardiac conditions.