Which of the following anti-arrhythmic drugs is useful in AV block resulting from digoxin overdose?: (A) Adrenaline, (B) Noradrenaline, (C) Atropine, (D) Adenosine
Answer is C. Treatment of digoxin toxicity: Mild digitalis toxicity Decreased with K+ (It decreases binding of the drug to Na+K+ATPase) but in severe digitalis toxicity, K+ is C/I Ventricular arrhythmias Lignocaine Atrial tachyarrhythmia b blockers Bradyarrhythmias and AV block Atropine Very severe toxicity Digibind