Twelve complete ECG patterns are recorded from a subject over 10 seconds.If this pattern continues, what is the rate of the heartbeat in the subject
A)60 beats per minute
B)72 beats per minute
C)90 beats per minute
D)108 beats per minute

Question

Quizplus · Accepted Answer

If twelve complete ECG patterns are recorded over 10 seconds, this means the heart beats 12 times in 10 seconds. To find the rate per minute, we multiply by 6 (since there are 60 seconds in a minute, and we're working with a 10-second interval). 12 beats in 10 seconds is equivalent to 12 * 6 = 72 beats per minute.

Twelve Complete ECG Patterns Are Recorded from a Subject Over