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Idioventricular Rhythm EKG Interpretation with Rhythm Strip

EKG Features

Rate: Slow (20-40 bpm)
Rhythm: Regular
P Wave: Absent
PR Interval: Not measurable
QRS: Wide (>0.10 sec), bizarre appearance

Idioventricular rhythm is an arrhythmia originating in an ectopic site in the ventricles. These rhythms occur when the main cardiac pacemaker is not functioning or has slowed. The myocardium of the ventricles takes-over the pace making role. These ventricular signals move across the ventricles without benefit of the conduction system, thus creating long (wide) QRS complexes. Heart rates are usually 20-45 bpm. Faster idioventricular rhythms (greater than 45 bpm) is called accelerated idioventricular rhythm.
Wikipedia

Idioventricular Rhythm EKG Interpretation Example

ekg rhythm strip for reference guide



Return to EKG Reference Guide Index



Authors, Reviewers and Developers EKG rhythms classes: Thomas O'Brien.
EKG monitor simulation: Steve Collmann
12 Lead Lecture: Dr. Michael Mazzini, MD, Cardiologist.
Spanish EKG: Breena R. Taira, MD, MPH
Medical review: Dr. Jonathan Keroes, MD, Cardiologist,
Dr. Barbara Erickson, PhD, RN, CCRN.
EKG tracings review: Dr. Pedro Azevedo, MD, Cardiology
Last Update: 11/10/2022

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