In unstable ventricular tachycardia, what is the initial management?

In unstable ventricular tachycardia, what is the initial management?

• A. Vagal maneuvers
• B. Synchronized cardioversion
• C. Intravenous lidocaine only
• D. Observation with electrolyte optimization

Answer: (B)

Unstable VT demands immediate restoration of perfusion, so the first step is rapid synchronized electrical cardioversion. Delivering a controlled shock timed to the heartbeat interrupts the ventricular tachycardia and promptly restores a more stable rhythm. This is far more time-efficient and reliable in an unstable patient than trying vagal maneuvers or waiting for medications to take effect. If the patient were completely pulseless, the approach would shift to an unsynchronized defibrillation. Antiarrhythmics like lidocaine may be considered later, but they’re not the initial move in an unstable situation. Observation with electrolyte optimization does not address the urgent need to terminate the instability.

Unstable VT demands immediate restoration of perfusion, so the first step is rapid synchronized electrical cardioversion. Delivering a controlled shock timed to the heartbeat interrupts the ventricular tachycardia and promptly restores a more stable rhythm. This is far more time-efficient and reliable in an unstable patient than trying vagal maneuvers or waiting for medications to take effect. If the patient were completely pulseless, the approach would shift to an unsynchronized defibrillation. Antiarrhythmics like lidocaine may be considered later, but they’re not the initial move in an unstable situation. Observation with electrolyte optimization does not address the urgent need to terminate the instability.