| Rhythm | Regular, but atrial and ventricular rhythms are independent |
| Rate | Characterized by Atrial rate usually normal and faster than ventricular rate |
| P Wave | Normal shape and size, may appear within QRS complexes |
| PR Interval | Absent: the atria and ventricles beat independently. |
| QRS | Normal, but wide if junctional escape focus |
| Notes | |
