Determine your heart rate from the ECG. Show your calculations A single cardiac

Question

Determine your heart rate from the ECG. Show your calculations A single cardiac cycle is from the start of one P wave to the start of the next P wave. You can count the number of small (or large) boxes for a single cardiac cycle. If the P wave is difficult to see, you count from R to R. This will give you the time for one cardiac cycle. Heart rate 60 sec x beat -beats/minute 1 1 min X sec. ses Where X-average length of cardiac cycle Thee are s bas bakes in haueer Casess Ibeat 06 Heart rate o beats/min This however bases your heart rate only a single beat. A more accurate approach is to use many cycles and calculate the average There are other tricks to estimate heart rate. Here are two Count the QRS complexes that are found in a 6 second interval and multiply by 10. 1. Count the big boxes between QRS complexes to determine HR as follows: Boxes 2. Rate 300 150 100 75 60 50

Explanation / Answer

ans-1. according to question heart rate is equal to 100beats/minutes

the formula for counting the QRS = heart rate/ 10

so QRS will be = 100/10

=10

ans-2 according to question there are 3 boxes in between the RS interwal

so as given 3 boxes is equal to 100 beats per minute.

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