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Atrial Flutter EKG Interpretation with Rhythm Strip

EKG Features

Rate: Fast (250-350 bpm) for Atrial, but ventricular rate is often slower
Rhythm: Regular or irregular
P Wave: Not observable, but saw-toothed flutter waves are present
PR Interval: Not measurable
QRS: Normal (0.06-0.10 sec)
A series of rapid depolarizations occurring two, three, four or more times per QRS complex.
Atrial flutter is an abnormally fast heart rate where the atria contract rapidly do not adequately pump blood to the ventricles. These fluttering atrial contractions are out of sync with the ventricles. As a result, the heart does not pump blood effectively. Atrial flutter is a common arrhythmia. It is a type of supra-ventricular tachycardia (SVT) and is similar to atrial fibrillation.

Atrial Flutter 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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