<unk>  is a rhythm with elevated rate of impulses originating from the sinoatrial node, defined as a rate greater than 100 beats/min in an average adult. The normal heart rate in the average adult ranges from 60–100 beats/min. Note that the normal heart rate varies with age, with infants having normal heart rate of 110–150 bpm to the elderly, who have slower normals.
Sinus tachycardia
Wide complex tachycardia
Sinus arrhythmia
Narrow complex tachycardia
Junctional tachycardia
Sinus bradycardia
Ventricular tachycardia
Supraventricular arrhythmias