EKG Question #3

Question

The nurse will analyze the following electrocardiogram strip:

What is the rate of the electrocardiogram strip?

Answers

1. 40-50 beats per minute
2. 50-60 beats per minute
3. 60-70 beats per minute
4. 70-80 beats per minute

Explanation

If counting the number of R segments in a 6 second strip, there are 6 (6 x 10) = 60

If counting the number of boxes between any two R intervals there are 22 small boxes(1500/22 = 68)

It is therefore reasonable to state there are 60-70 beats per minute.