Key Points Differentiating Junctional vs. Ventricular Escape Rhythms: Narrow QRS Complexes: Usually indicate junctional escape rhythms, originating from the AV node or proximal His-Purkinje system. These rhythms typically have a…
A 70-year-old woman presents to the emergency department with lightheadedness and dizziness that is worse with standing. The following ECG is obtained: