Multiple P waves preceding the QRS complexes are typical of sinus rhythm.

Name: Multiple P waves preceding the QRS complexes are typical of sinus rhythm.
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In sinus rhythm, there is typically one P wave preceding each QRS complex, indicating normal atrial depolarization followed by ventricular depolarization. Multiple P waves before a QRS complex suggest an abnormal rhythm, such as atrial flutter or atrial fibrillation.

Multiple P Waves Preceding the QRS Complexes Are Typical of Sinus