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Sinoatrial Block | Reference Guide

ecg rhythm strip for reference guide

EKG Features

Rate: Normal or slow
Rhythm: Irregular when SA block occurs
P Wave: Normal
PR Interval: Normal (0.12-0.20 sec)
QRS: Normal (0.06-0.10 sec)

In sinoatrial block, the impulse is delayed or blocked on the way to the atria. This creates a dropped beat which is a multiple of the P-P interval. After the dropped beat, the rhythm continues regularly. There are three types of SA blocks, based upon the length of the delay.
External Source:
Harvard Med School Catalyst
Sinoatrial Block - Reference Guide | EKG.Academy

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pv:0 | adjsruns:0
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