Assume ventricular tachycardia until proven otherwise
Often misdiagnosed as SVT with aberrancy
Look for specific features of VT
fusion/capture beats
AV dissociation
ECG findings
Monomorphic VT
QRS duration <140 ms
RS interval 60-80 ms
Right Bundle Branch Block
Axis deviation depending on classification
fusion/capture beats
AV dissociation
Monomorphic VT
QRS duration <140 ms
RS interval 60-80 ms
Right Bundle Branch Block
Axis deviation depending on classification
90-95% of cases
RBBB<unk>  axis deviation
second most common
RBBB
Right axis deviation
rare
RBBB or LBBB
Normal axis
Idiopathic fascicular left ventricular tachycardia
Regular
Wandering atrial pacemaker
AV Node Independent
Catecholaminergic polymorphic ventricular tachycardia
Sinus tachycardia
Polymorphic ventricular tachycardia
Atrial tachycardia 