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Normal Sinus Rhythm EKG Interpretation with Rhythm Strip

EKG Features

Rate: Normal (60-100 bpm)
Rhythm: Regular
P Wave: Normal (positive & precedes each QRS)
PR Interval: Normal (0.12-0.20 sec)
QRS: Normal (0.06-0.10 sec)
Sinus Rhythm is the rhythm category when each of the five steps of rhythm analysis are “normal”.
Normal sinus rhythm is indicated by a heart rate in the normal range of 60-100 beats per minute with a steady rate, aside from variations due to respiration. P waves should be positive and within a normal amplitude (< 2.5mm at lead II and III).
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Normal Sinus 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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