Sinus rhythm (a.k.a. normal sinus rhythm ... Note that ectopic atrial rhythms can have a P wave before each QRS complex, however the P wave is not upright in lead II since it originates in ...

Like normal sinus rhythm, the heart rate is still (usually ... P waves will be present and have the same shape throughout. A QRS complex will follow each P wave. The P-R intervals will be between ...

This document will assist physicians in identifying normal ECG patterns commonly found in ... and the QRS complex usually narrow unless the baseline QRS has a bundle branch block. Sinus rhythm resumes ...

Sinus rhythm, EF less than or equal to 35%, NYHA functional class III/IV and QRS duration of 120 ms or greater: IA recommendation in the German guideline only with QRS greater than 150 ms and left ...

If there is a P wave before every QRS complex, and it has a sinus morphology, then normal sinus rhythm, or NSR, is said to be present. A sinus morphology is an upright P wave in lead II and ...