How To Calculate Heart Rate From Ecg With Regular Rhythm

There are multiple methods to estimate the rate.

How to calculate heart rate from ecg with regular rhythm. In most circumstances when there is a regular rhythm the simplest way to calculate the rate is by counting the number of large squares between the spike of each complex. When the cardiac rhythm is regular the heart rate can be determined by the interval between two successive qrs complexes. We can calculate the beats per minute bpm by dividing 1500 by the number of small squares between two r waves r r interval one beat. 4 large square 75 bpm on the ekg locate a r wave that matches a thick line count the number of large squares to the next r wave.

Round your answer to the nearest whole number. By counting the number of qrs complexes and multiplying by six the number per minute can be calculated. 250 small squares 50 large squares 10 seconds. Once you have calculated the number of big squares separating qrs complexes let s use 3 2 as an example perform the following calculation to determine heart rate.

Another quick way to calculate the rate is based on the entire ecg being 10 seconds. The heart rate can be calculated from the ecg using a number of different methods and depending upon the circumstances. Heart rate is 300 divided by the number of large squares and that s it. 1500 small squares 300 large squares 1 minute.

Knowing this we can calculate the heart rate measuring the r r interval providing the rhythm is regular.