R-on-T phenomenon

Results:
ECG STAT August 1, 2025
R-on-T Phenomenon

Key Points Definition: The R on T phenomenon occurs when an ectopic impulse (often a PVC or cardioversion shock) falls on the T wave of the preceding beat. Mechanism: Interrupting…

Weekly Workout December 23, 2024
A Decade of ECG Gems: Counting Down the Top 10 Cases

A 68-year-old man with PMHx of hypertension and tobacco use arrives at the emergency department with severe central chest pain and mild shortness of breath over the past 1-2 hours….

Weekly Workout November 6, 2016
ECG Basics & Fundamentals: electrical cardioversion of an unstable regular wide complex tachycardia

A 50-year-old man is brought to the ED with a regular wide complex tachycardia (RWCT) shown below. He is pain free with a normal blood pressure and mental status. His…

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