text: A<unk>  is a rapid heart rate. In approximately 80% of cases,<unk>  is due to ventricular<unk>  (VT), a rapid heartbeat that starts in the ventricles.  This page focuses on ventricular<unk>  as a cause of<unk> .
option_0: Wide complex tachycardia
option_1: Narrow complex tachycardia
option_2: Fascicular VT
option_3: Supraventricular arrhythmias
option_4: Junctional tachycardia
option_5: Ventricular escape beat
option_6: Second degree AV block
option_7: Sinus arrhythmia