Sign-in, or Join our EKG-Essentials plan. Join

Sinus Arrest | Sinus Pause ECG Interpretation with Sample Strip


ECG Strip

ecg rhythm strip for reference guide

Sinus Arrest | Sinus Pause Rhythm Strip Features

Rate: Normal to slow
Rhythm: Irregular due to pause
P Wave: Normal
PR Interval: Normal (0.12-0.20 sec)
QRS: Normal (0.06-0.10 sec)
Sudden absence of electrical activity initiated by the SA node. This results in a pause in the electrical activity seen on the tracing. The sinus pause rhythm typically will demonstrate constant R to R intervals prior to and following the pause.
Sinus arrest is a pause in the generation of electrical impulses by the SA node. The sinus arrest pause is usually followed by a new sinus node beat or by an AV node escape beat. If no pacemaker begins activity, then the condition becomes cardiac arrest. If an ectopic site (e.g. AV junction or ventricles) takes over, the beat will likely be slower. Refer to sinoatrial block for information on a similar EKG.
External Source:



Return to ECG Reference Guide Index



Authors and Sources

Authors and Reviewers


Sources





? pv# 1 | n? False | i? False hem:
np:

This website provides professional medical education. For medical care contact your doctor. 2024 © MedEdu LLC. All Rights Reserved. Terms & Conditions | About Us | Privacy | Email Us | 1

An error has occurred. This application may no longer respond until reloaded. Reload 🗙