Wolff-Parkinson-White Syndrome - EKG Reference Caliper Time Interval: ___ seconds RhythmRegular unless atrial fibrillation present RateNormal (60-100 bpm) P WaveNormal PR IntervalCan be short (<0.12 sec) QRSUsually wide (> 0.12 sec) NotesLook for short PR interval and/or delta wave A delta wave (positive or negative) distorts the early part of the QRS complex Quick Links Sinus Atrial Junctional Ventricular Atrioventricular Pacemaker All