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Sinus Node Rhythms and Arrhythmias: Difference between revisions
Sinus Node Rhythms and Arrhythmias (view source)
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===The properties of normal sinus rhythm (see also [[Basics]]):=== | ===The properties of normal sinus rhythm (see also [[Basics]]):=== | ||
[[Image:QRSverklaring.jpg|thumb| During | [[Image:QRSverklaring.jpg|thumb| During normal sinus rhythm, every atrial contraction (P-wave) is followed by a ventricular contraction (QRS complex).]] | ||
[[Image:normalSR.jpg|thumb|Normal sinus rhythm with a positive P- | [[Image:normalSR.jpg|thumb|Normal sinus rhythm with a positive P-wave in I, II and AVF, and a biphasic P-wave in V1.]] | ||
*A P- | *A P-wave (atrial contraction) precedes the QRS complex | ||
*Every P | *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 | *The frequency ranges between 60 and 100 beats per minute | ||
*The P- | *The P-waves maximum height is 2.5mm in II and/or III | ||
*The P- | *The P-wave is positive in I and II, and biphasic in V1 | ||