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- See: - Diff Dx - Discussion - VT vs SVT - PSVT PULSE PRESENT Pulseless VT __________________________________|____________________ | | Stable Unstable | | O2 ABG | | IV Access IV Access | | lidocaine, 1mg/kg | | lidocaine, 0.5 mg/kg, q8min l or upto 3mg/kg | | Cardiovert 50 Joules Procainamide, 20mg/min | upto 1000 mg Cardiovert 100 Joules | | Cardiovert as in Unstable pts; Cardiovert 200 Joules | Cardiovert w/ upto 360 J | If Recurrent, Add lidocaine and Cardioconvert again starting at Energy levels previously successful; Then Procainamide or Bretylium; | | | | lidocaine (maintenance): 1-4 mg/min; In elderly, liver dz, CHF, HypoTN: give 1/2 dose;