Atrial Fibrillation
Rate : Atrial : 350 bpm or greater , Ventricular
slow or fast :
Rhythm : Irregular
P- wavesNo true P- waves
PR IntervalNONE
QRS : Normal ... 0.06 - 0.10 sec
Atrial Fibrillationis usually a chronic arrhythmia
associated with underlying heart disease
Signs & symptomsdepend on ventricular response rate