A nurse is calculating the maximum heart rate of a 20-year-old client who has undergone a prescribed fitness level test. What should this client's maximum heart rate be?
A) 120 beats per minute
B) 150 beats per minute
C) 170 beats per minute
D) 200 beats per minute
D
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Maximum heart rate is calculated by subtracting a person's age from 220 . Thus, a 20-year-old's maximum heart rate is 200 beats per minute (bpm), whereas a 50-year-old client's maximum heart rate is 170 bpm. The target heart rate is 60% to 90% of the maximum heart rate. Beginners should not exceed 60%, intermediates can exercise at 70% to 75%, and competitive athletes can tolerate 80% to 90% of their maximum heart rate.
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