Which of the following is an irregular rhythm originating in the sinus node?
A)Sinus arrhythmia
B)Sinus rhythm
C)Sinus tachycardia
D)Sinus bradycardia

Question

Quizplus · Accepted Answer

Sinus arrhythmia is an irregular rhythm originating in the sinus node, characterized by variations in the heart rate during breathing cycles, which is considered a normal physiological phenomenon, especially in young, healthy individuals.

Which of the Following Is an Irregular Rhythm Originating in the Sinus