LBBB Ventricular Tachycardia Criteria - Lead V1 - Telemetry Diagnosis WCT is VT IF: • Initial r wave > 30 ms • Onset of r to nadir of S > 60 ms • Notched downstroke #LBBB #Ventricular #Tachycardia #WCT #VTach #Criteria #V1 #diagnosis #cardiology #ekg #ecg #telemetry