What is the heart rate depicted on the following electrocardiogram?
a. 60 c. 100
b. 80 d. 120
ANS: B
Isolating 3 seconds out of the strip shows that there are 4 cardiac cycles in the 3-second period. Multiply 4 by 20. The heart rate is 80 beats/min.
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Indicate whether the statement is true or false
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