<prompt> Lignocaine is used in -Atrial fibrillationAtrial flutterPSVTVentricular tachycardia  <response>: Ans. is d i.e., Ventricular tachycardia o Lidocaine is used principally for ventricular arrhythmia, especially those complicating myocardial infarction.o Lidocaine is DOC for digitalis induced ventricular arrhythmias. 