Sinus arrhythmia has a pattern that often corresponds with the
A)PR intervals.
B)breathing pattern.
C)P-P intervals.
D)patient's age.

Question

Quizplus · Accepted Answer

Sinus arrhythmia is a normal variation of the heart rate that often corresponds with the patient's breathing pattern. It is characterized by cyclic variation in the heart rate, with a slight increase during inhalation and a decrease during exhalation. Therefore, the correct answer is B: breathing pattern. The PR intervals refer to the time between the P wave and the QRS complex, the P-P intervals refer to the time between consecutive P waves, and the patient's age is not directly related to sinus arrhythmia.

Sinus Arrhythmia Has a Pattern That Often Corresponds with the