To accurately measure the heart rate of a patient in normal sinus rhythm,which technique would be the most accurate?
A) The number of R waves in a 6-second strip
B) The number of large boxes in a 6-second strip
C) The number of small boxes between QRS complexes divided into 1500
D) The number of large boxes between consecutive R waves divided into 300

Question

Quizplus · Accepted Answer

Calculation of heart rate if the rhythm is regular may be done using the following methods.Method 1: number of RR intervals in 6 seconds multiplied by 10 (eg,8 ´ 10 = 80/min).Method 2: number of large boxes between QRS complexes divided into 300 (eg,300 ¸ 4 = 75/min).Method 3: number of small boxes between QRS complexes divided into 1500 (eg,1500 ¸ 18 = 84/min).

To Accurately Measure the Heart Rate of a Patient in Normal