Key Learning Points
ECG: Paper, Calipers, Rulers, Rate Calculation
Rule of 300 Page 9
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If the R-R interval contains:
1 large square = 300 hr
2 large squares = 150 hr
3 large squares = 100 hr
4 large squares = 75 hr
5 large squares = 60 hr
Rule of 10Page 10
- To use the Rule of 10, multiply the number of heart beats in a 6 seconds period and multiply times 10.
- The slower the heart rate, the less accurate the measurement with the Rule of 10.
