Sinus Arrhythmia

Sinus Arrhythmia EKG tracing

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Caliper Time Interval: ___ seconds




RhythmIrregular, varying with respiration
RateNormal (60-100 bpm) and rate may increase during inspiration
P WaveNormal
PR IntervalNormal (0.12-0.20 sec)
QRSNormal (0.06-0.10 sec)
NotesHeart rate frequently increases with inspiration, decreasing with expiration


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This website is intended for use by medical professionals for educational purposes only. For medical care, contact a healthcare provider. Copyright 2017 © Medical Training and Simulation LLC. All Rights Reserved.