-The heart rate in Figure 1 is closest to
A)100.
B)70.
C)150.
D)50.

Question

-The heart rate in Figure 1 is closest to
A)100. 
B)70. 
C)150. 
D)50.

Quizplus · Accepted Answer

To estimate the heart rate from an ECG, you can use the 300 rule, which involves counting the number of large squares between two successive R waves and dividing 300 by this number. If the heart rate appears to be between two values, choosing the closer estimate is reasonable. In this case, without seeing the figure, the correct answer is inferred based on the question's context and common heart rates.

-The Heart Rate in Figure 1 Is Closest to