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EKG Reading: How the QRS is Made

(Quick links to topics are below) I explain how the QRS is created, helping the viewer understand rather than memorize when it comes to EKG reading. I review function of the His-Purkinje system, narrow vs wide QRS, bundle branch blocks, ventricular pacing, what is meant by "QRS fusion," and many basic concepts of physiology and anatomy. The video is intended for anyone who looks at and interprets electrocardiograms or telemetry! I hope you enjoy and find the content helpful! Sections in the video: 1.Normal electrical system 0:00 2.Bundle branch block, fascicular block 4:20 3.AV block and escape rhythms 13:17 4.PVCs and Ventricular tachycardia 19:13 5.Fascicular and junctional tachycardia 26:00 6.WPW and ventricular preexcitation 37:33 7.Ventricular pacing and cardiac resynchronization 49:36 8.Cardiac resynchronization optimization (AV and VV timing) 1:05:47 9.His bundle pacing, left bundle branch pacing 1:16:59 10.Take-home points 1:23:09