How To Count Heart Rate On Ecg Strip

Two large squares 150 bpm three large squares 100 bpm four 75 bpm.

How to count heart rate on ecg strip. By counting the number of qrs complexes and multiplying by six the number per minute can be calculated. Ecg paper is a grid where time is measured how to count heart rate on ecg strip essay the horizontal axis. Round your answer to the nearest whole number. In this case the heart rate would be 94 beats per minute.

If each one occurs with only one large square between them then the heart rate is 300. Each small square is 1 mm in length and represents 0. Attain a 6 second ekg strip 30 large boxes and multiply the number of p waves in the six second strip by 10 to determine the number of atrial beats in one minute. 80 normal sinus rhythm answer.

How to interpret heart rhythms on ekg strips. Ekg rhythm how to count the heart rate on ekg strip 6 six second rule duration. Quick heart rate quiz. Start with a heart rate of 300 and divide it by the number of large telemetry squares between the r waves.

On the ekg locate a r wave that matches a thick line count the number of large squares to the next r wave. Divide the number 300 by your answer above. Heart rate is 300 divided by the number of large squares and that s it. Another quick way to calculate the rate is based on the entire ecg being 10 seconds.

Let s say it doesn t work out perfect. Each larger square is 5 mm in length and represents 0. We know the normal heart rate is 60 100 although some would argue that 50 90 is more accurate. This is multiplied by 6 10 seconds x 6 1 minute to give the average beats per minute bpm example of 1500 small squares versus 300 large square method.

Then count how many r waves are between the 30 large squares. Take that number and multiple it by 10 and this is your heart rate. Voltage is measured along the vertical axis. If there is 1 large square between r waves the heart rate is 300 bpm.

To determine the number of ventricular contraction multiply the number of r waves in the 6 second ekg strip by 10. 10 mm is equal to 1mv in voltage. Rate number of r waves x 6 the number of complexes count r waves on the rhythm strip gives the average rate over a ten second period. 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.