Isorhythmic AVD

Results:
ECG STAT April 11, 2025
Second-Degree AV Block, High-Grade
(Advanced AV Block)

Key Points Definition: A severe form of second-degree AV block—most often Mobitz II—characterized by multiple consecutive non-conducted P waves (e.g., 3:1 or 4:1 conduction). PR Intervals: Constant before conducted beats,…

ECG STAT April 1, 2025
Third-Degree AV Block
(Complete Heart Block)

Key Points Definition: Third-degree AV block is complete failure of conduction from atria to ventricles, resulting in independent atrial and ventricular activity—known as AV dissociation. Hallmark Feature: No P waves…

Weekly Workout February 25, 2019
Rhythm Interpretation: AV dissociation does not always mean there is a complete heart block

A 64-year-old woman presents to the emergency department with sore throat. The following ECG was obtained at triage:

ECG Tags
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