A normal rhythm Rs 所字 ZnsJiang University premature ventricular beat 人人人入人 C paroxysmal supraventricular tachycardia (PSVT) D atrial fibrillation arrhythmias v-y E atrial flutter with variable Av conduction Too rapid; +++++++++++4+++++ F atrial flutter with 1: 1 AV conduction Too slow willow Asynchronous G monomorphic ventricular tachycardia Reduce cardiac output H Torsades de Pointes ventricular fibrillation √arrhythmias Too rapid; Too slow; Asynchronous; Reduce cardiac output