What does it mean when a rhythm has no P waves?
What does it mean when a rhythm has no P waves? A junctional rhythm is characterized by QRS complexes of morphology identical to that of sinus rhythm without preceding P waves. This rhythm is slower than the expected sinus rate. When this rhythm completely takes over the pacemaker activity of the heart, retrograde P waves and AV dissociation can be seen. In which rhythm P wave is absent? Absence of the P wave with a flat baseline may indicate: Fine atrial fibrillation. Sinoatrial arrest (with a secondary escape rhythm) Why P wave is absent in junctional rhythm? ♥Junctional (escape) rhythms...