First Degree Heart Block

Drill Score


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EKG Drill Answer


This is First Degree Heart Block. Look for rhythm that is regular, with heart rate that is the underlying rate. Notice that the P wave is normal. The PR interval is prolonged (>0.20 sec). The QRS is typically normal (0.06-0.10 sec). A first degree AV block occurs when electrical impulses moving through the Atrioventricular (AV) node are delayed (but not blocked). First degree indicates slowed conduction without missed beats..

EKG Arrhythmia Practice Drill Tracing







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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.