Question

An EKG technician is preparing a patient for a standard 12-lead EKG. Which three leads should the technician place at the same horizontal level?

Answer 1

The EKG technician should place Lead I, Lead II, and Lead III at the same horizontal level.

Step-by-step explanation:

The three leads that the EKG technician should place at the same horizontal level are:

1. Lead I: Placed on the right arm
2. Lead II: Placed on the left leg
3. Lead III: Placed on the left arm

These three leads form the standard Einthoven's Triangle configuration, which helps in recording the electrical activity of the heart from different angles.