This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Most characteristic arrhythmia seen with Digoxin toxicity is \nSelect and explain. \nA. Ventricular Extrasystoles, B. Ventricular bigemini, C. Atrial tachycardia with AV nodal block, D. Atrial flutter', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Atrial tachycardia (because of increase intracellular calcium levels) and AV nodal blockade (because of parasympathomimetic activity) is the most characteristic arrhythmia seen with Digoxin toxicity.\nBut Ventricular bigeminy is the most common arrythmia seen with\xa0Digoxin toxicity.', 'role': 'assistant'}]