Which medication is given as a 150 mg bolus over 10 minutes for VTACH with a pulse?

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Multiple Choice

Which medication is given as a 150 mg bolus over 10 minutes for VTACH with a pulse?

The main idea here is selecting the antiarrhythmic with a dosing regimen that matches VT with a pulse. Amiodarone is used as the first-line antiarrhythmic for stable ventricular tachycardia with a pulse, given as a 150 mg IV bolus over 10 minutes. This rapid loading dose helps quickly suppress the VT and stabilize the rhythm, followed by a maintenance infusion (1 mg/min for several hours, then a lower rate) to prevent recurrence. Amiodarone works well across a range of arrhythmias because it prolongs refractoriness and slows conduction without causing as much negative inotropy as some other agents, making it safer in a variety of patients. Lidocaine can be considered in VT, especially in ischemic contexts, but it is not the preferred first choice for VT with a pulse when amiodarone is available. Esmolol is a beta-blocker used mainly for rate control in supraventricular tachycardias or specific hypertensive scenarios, and it can worsen VT stability. Procainamide is another option for VT, but its use carries a higher risk of hypotension and QRS widening, and it does not have the same overall consistency in terminating VT as amiodarone in many clinical settings.

The main idea here is selecting the antiarrhythmic with a dosing regimen that matches VT with a pulse. Amiodarone is used as the first-line antiarrhythmic for stable ventricular tachycardia with a pulse, given as a 150 mg IV bolus over 10 minutes. This rapid loading dose helps quickly suppress the VT and stabilize the rhythm, followed by a maintenance infusion (1 mg/min for several hours, then a lower rate) to prevent recurrence. Amiodarone works well across a range of arrhythmias because it prolongs refractoriness and slows conduction without causing as much negative inotropy as some other agents, making it safer in a variety of patients.

Lidocaine can be considered in VT, especially in ischemic contexts, but it is not the preferred first choice for VT with a pulse when amiodarone is available. Esmolol is a beta-blocker used mainly for rate control in supraventricular tachycardias or specific hypertensive scenarios, and it can worsen VT stability. Procainamide is another option for VT, but its use carries a higher risk of hypotension and QRS widening, and it does not have the same overall consistency in terminating VT as amiodarone in many clinical settings.

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