What variance in RR intervals must be present to be considered sinus arrhythmia?
A) more than 20%
B) more than 10%
C) more than 40%
D) more than 30%

Name: What variance in RR intervals must be present to be considered sinus arrhythmia? A) more than 20% B) more than 10% C) more than 40% D) more than 30%
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Question

Quizplus · Accepted Answer

Sinus arrhythmia is considered present when there is more than a 10% variance in RR intervals, which is a normal variation in heart rate during a breathing cycle.

What Variance in RR Intervals Must Be Present to Be