For synchronized cardioversion of stable monomorphic VT, what energy is recommended?

• A. 150 joules
• B. 50 joules
• C. 100 joules
• D. 200 joules

Answer: (D)

Delivering a synchronized shock for a stable monomorphic VT relies on using the appropriate energy for the device in use. If the defibrillator uses a monophasic waveform, the recommended energy for synchronized cardioversion is 200 joules. This higher setting helps reliably terminate the VT while delivering the shock at the moment of the R wave to avoid shocking on the T wave. In many modern units that use biphasic waveforms, the initial energy is lower (often 100 J) with escalation if needed to 200 J. So, in the context of the question, 200 joules is the correct choice because it matches the standard monophasic guideline for synchronized cardioversion of stable monomorphic VT.