Measuring PR Interval in EKGs

Sarah from register nurse rn.com explains how to measure the PR interval on an EKG strip. The video covers the significance of the PR interval, how to measure it using the small squares on the EKG strip, and provides a practical example. The PR interval measures AV conduction time and should be between 0.12 to 0.20 seconds. The video concludes with information on additional resources and quizzes available on their website.

What is the main focus of the video tutorial?

• How to count the heart rate using the 6C rule

• How to calculate the QRS complex

• How to interpret EKGs

• How to measure the PR interval on an EKG strip

What does the PR interval represent?

• Heart rate variability

• Atrial relaxation time

• AV conduction time

• Ventricular contraction time

What is the normal range for a PR interval?

• 0.20 to 0.28 seconds

• 0.28 to 0.36 seconds

• 0.08 to 0.12 seconds

• 0.12 to 0.20 seconds

Why is it important to measure the PR interval accurately?

• To calculate the QRS complex

• To assess atrial fibrillation

• To identify potential heart blocks

• To determine the heart rate

What do the small squares on an EKG strip represent?

• 0.02 seconds

• 0.04 seconds

• 0.06 seconds

• 0.08 seconds

Where do you start measuring the PR interval on an EKG strip?

• At the end of the U wave

• At the beginning of the QRS complex

• At the end of the T wave

• At the beginning of the P wave

How many small squares should a normal PR interval measure between?

• 3 to 5 squares

• 1 to 2 squares

• 6 to 8 squares

• 9 to 11 squares

What is the first step in measuring the PR interval on a sample EKG strip?

• Identify the T wave

• Identify the U wave

• Identify the P wave

• Identify the QRS complex

What should you do after identifying the P wave and QRS complex on an EKG strip?

• Count the small squares between them

• Count the large squares between them

• Calculate the heart rate

• Measure the amplitude of the waves

Where can you find additional resources and quizzes on EKG measurements?

• ekgmeasurements.com

• registernursrn.com

• nurseekg.com

• cardiologystudy.com