Question

what can be calculated by dividing 60 seconds by the time between two consecutive r waves?
multiple choice
heart rate
r - r interval
pq interval
cardiac cycle time

Explanation:

The formula for calculating heart rate (in beats per minute) using an electrocardiogram (ECG) is \( \text{Heart Rate}=\frac{60}{\text{Time between two consecutive R - waves (in seconds)}} \). The R - R interval is the time between two consecutive R waves. The PQ interval is related to atrial - ventricular conduction. The cardiac cycle time is the time for one complete heart cycle (which could be related to the R - R interval but the formula here directly gives heart rate). So, dividing 60 seconds by the time between two consecutive R waves gives the heart rate.

Answer:

heart rate