<prompt> Most characteristic arrhythmia seen with Digoxin toxicity isVentricular ExtrasystolesVentricular bigeminiAtrial tachycardia with AV nodal blockAtrial flutter  <response>: 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.But Ventricular bigeminy is the most common arrythmia seen with Digoxin toxicity. 