A nurse is caring for a client who has a life-threatening ventricular dysrhythmia. Which of the following medications should the nurse anticipate administering?

D. Amiodarone is a potent antiarrhythmic agent that affects multiple ion channels (sodium, potassium, calcium channels) and has properties of both Class I, II, III, and IV antiarrhythmics. Amiodarone is the drug of choice for treating life-threatening ventricular dysrhythmias, including ventricular tachycardia and ventricular fibrillation. It can be administered rapidly via intravenous bolus followed by infusion to stabilize the heart rhythm and prevent recurrence.A. Digoxin is more commonly used for atrial dysrhythmias, such as atrial fibrillation or atrial flutter, rather than ventricular dysrhythmias. It does not have rapid anti-dysrhythmic effects suitable for life- threatening ventricular arrhythmias.B. Dopamine is typically used to support blood pressure and cardiac output in shock states rather than for direct management of ventricular dysrhythmias.C. Verapamil is used for atrial dysrhythmias, such as atrial fibrillation or supraventricular tachycardia, but not typically for ventricular dysrhythmias. In fact, it can worsen ventricular dysrhythmias and is contraindicated in some cases of ventricular tachycardia.