Sinus Node Rhythms and Arrhythmias: Difference between revisions

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;Criteria for normal sinus rhythm (see also [[Basics]]):
;Criteria for normal sinus rhythm (see also [[Basics]]):
*A P wave (atrial contraction) precedes the QRS complex
*A P wave (atrial contraction) precedes every QRS complex
*Every P is followed by a QRS complex
*The rhythm is regular, but varies slightly while breathing
*The rhythm is regular, but varies slightly while breathing
*The frequency ranges between 60 and 100 beats per minute
*The frequency ranges between 60 and 100 beats per minute

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