This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hypeension, Arrhythmias, Dyslipidemia, Subject name: Pharmacology
Lignocaine is useful for the treatment of: 
Select and explain. 
A. Atrial fibrillation, B. Paroxysmal supraventricular tachycardia, C. Digitalis induced ventricular extrasystoles, D. All of the above
C: Digitalis induced ventricular extrasystoles
Answer: C: Digitalis induced ventricular extrasystoles 
Explanation: Lidocaine* It is used to suppress VT and prevent VF.* It is ineffective in atrial arrhythmias. DOC for Digitalis induced ventricular extrasystoles