Question

An EKG technician should recognize that a PR interval that spans 4 small boxes on the EKG paper has which of the following durations?

a) 0.08 seconds
b) 0.12 seconds
c) 0.16 seconds
d) 0.20 seconds

Answer 1

The PR interval is a measurement on an EKG that represents the duration from the beginning of atrial depolarization (the P wave) to the initiation of the QRS complex. If the PR interval spans 4 small boxes on EKG paper, it has a duration of 0.16 seconds.

Step-by-step explanation:

The PR interval is a measurement on an EKG that represents the duration from the beginning of atrial depolarization (the P wave) to the initiation of the QRS complex.

On EKG paper, if the PR interval spans 4 small boxes, then it has a duration of 0.16 seconds.