Sinus Arrhythmia is most often a benign rhythm, common in children and less common with older adults. The irregular pattern of this rhythm fluctuates with inspiration (HR increases) and expiration (HR decreases). A narrow QRS and upright P waves in Lead II is expected.
Sinus arrhythmia indicates cardiovascular health.
Sinus arrhythmia usually doesn’t need treatment unless severe symptoms occur. Regular check-ups, exercise, a balanced diet, and sufficient rest are recommended for heart health.
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