The nurse is calculating the rate for a regular rhythm.There are 20 small boxes between each P wave and 20 small boxes between each R wave.What is the ventricular rate?
A) 50 beats/min
B) 75 beats/min
C) 85 beats/min
D) 100 beats/min

Question

Quizplus · Accepted Answer

The rule of 1500 is used to calculate the exact rate of a regular rhythm.The number of small boxes between the highest points of two consecutive R waves is counted,and that number of small boxes is divided into 1500 to determine the ventricular rate.1500/20 = 75 beats/min.This method is accurate only if the rhythm is regular.

The Nurse Is Calculating the Rate for a Regular Rhythm