Friday, October 21, 2011

Q: Ventricular fibrillation caused by Digitalis toxicity is best responsive to(Choose one)?

A) cardioversion
B) Amiodarone
C) Lidocaine
D) Digibind

Answer: Lidocaine

Interestingly, electrical cardioversion is generally not indicated in ventricular fibrillation caused by digitalis toxicity. On the contrary it is found to increase the dysrhythmia in digitalis toxicity. Similarly, is the case with amiodarone. Lidocaine is a better choice in known ventricular fibrillation caused by digitalis toxicity.

Digibind is an antidote for Digitalis but not an antiarrhythmic agent.

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