A 30 year old female presented with eclampsia. After 3 hours of admission she is complaining of palpitations for which ECG was performed. Vitals are stable. What is the next best management?

Vitals are stable.ECG of patient shows: Broad QRS Complex tachycardia (QRS > 160msec) . HR [?] 300/min Amplitude of every QRS is variable. Dx: Torsades de pointes --> Type of Polymorphic ventricular tachycardia --> due to prolongation of QT Trigger -Vomiting, hypokalemia. Tachyarrhythmia management: In unstable patient --> Cardioversion In stable patient --> Mg SO4. -Amiodarone: monomorphic VT -Adenosine: AVN