>3-5 consecutive beats originating below the AV node
Rate > 100bpm
Duration <30s
Patient remains hemodynamically stable
Occurs in 0-4% of ambulatory patients
Increased frequency in males and with increasing age
Nonsustained ventricular tachycardia
Assume any wide-complex tachycardia is ventricular tachycardia until proven otherwise 
Wide-complex tachycardia
Regular
Narrow-complex tachycardia
Monomorphic ventricular tachycardia
Accelerated idioventricular rhythm
PSVT with aberrant conduction: