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How to Calculate Heart Rates Using an ECG Video
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Video at a Glance
- This video explains how to calculate heart rates using an ECG.
- The first method is called the 6-second method. At the top of the ECG paper are little tick marks. Between each tick mark is 3 seconds. Count the number of complexes in the six-second strip and multiply it by 10. This is the only method you can use with slightly irregular rhythms.
- The next method is called the 600 method. For this method, the rhythm must be regular. Find an R wave that falls on a line of a big box. Then, count the big boxes backward until you reach the next R wave.
- The third method is called the small box method, and it is probably the most accurate. Count the number of small boxes between the R-R. First, find an R wave that falls on the line of a big box because you know there are five small boxes within one big box. Now, count off the small boxes. Take 1500 and divide by the number of small boxes.
- This video includes many examples of these methods in action.
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