ECG Guru - Instructor Resources

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ST depression

Instructors' Collection ECG of the WEEK: Incorrect Machine Interpretation

Wed, 03/01/2017 - 23:07 -- Dawn

This ECG is presented as an example of INCORRECT MACHINE INTERPRETATION.  While there are many abnormalities in this ECG, it does not represent a paced rhythm. While there are exceptions, most paced rhythms represent either AV sequential pacing, right ventricular pacing, or bi-ventricular pacing.

RECOGNITION OF A PACED RHYTHM

ECG Basics: Sinus Pause / Sinus Arrest

Thu, 12/12/2013 - 11:03 -- Dawn

This example of sinus arrest, also called sinus pause, shows a spontaneous return to sinus rhythm.  There are many mechanisms by which pauses can occur on the ECG. One concept for beginner students to grasp is that, if the pause contains the equivalent of regular R-to-R intervals, and the first complex after the pause is "on time",  we can expect that the sinus node kept firing, but did not penetrate the atria (exit block).

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