<unk>  is characterized by a heart rate > 100 beats per minute and a QRS<unk>  of a duration < 120 milliseconds.<unk>  may originate in the sinus node, atria, AV node, bundle of His, or a combination of these tissues.  The diagnosis of<unk>  is based on the ECG findings.  Hemodynamically unstable patients should receive urgent synchronized cardioversion.
Narrow complex tachycardia
Wide complex tachycardia
Fascicular VT
Supraventricular arrhythmias
Ventricular escape beat
Junctional tachycardia
AV reentrant tachycardia
Paroxysmal AV block