The R -R interval is the time between the peaks of two successive QRS complexes and represents
A) the amount of time between heartbeats.
B) ventricular systole.
C) atrial diastole.
D) atrial systole.
E) ventricular diastole.

Question

Quizplus · Accepted Answer

The R-R interval on an electrocardiogram (ECG) measures the time between two successive QRS complexes, which corresponds to the time between heartbeats. This interval reflects the heart rate, with a shorter R-R interval indicating a faster heart rate and a longer R-R interval indicating a slower heart rate.

The R -R Interval Is the Time Between the Peaks