If a defibrillation terminates the rhythm but a shockable rhythm resumes, what energy dose should be used for subsequent shocks?

If a defibrillation terminates the rhythm but a shockable rhythm resumes, what energy dose should be used for subsequent shocks?

• A. Always use the highest energy for all subsequent shocks.
• B. Use the energy dose that successfully terminated the rhythm for subsequent shocks.
• C. Only use energy if the rhythm recurs; otherwise no further shocks
• D. Set to 120-200 J for all shocks regardless

Answer: (B)

If a defibrillation shock stops the rhythm but the shockable rhythm comes back, use the same energy level that successfully terminated the rhythm for the next shock. That energy worked in this patient, so repeating it gives the best chance of another termination without adding unnecessary myocardial injury from higher energy. Escalation should be reserved for subsequent attempts if shocks continue to fail, following the device’s guidelines.

If a defibrillation shock stops the rhythm but the shockable rhythm comes back, use the same energy level that successfully terminated the rhythm for the next shock. That energy worked in this patient, so repeating it gives the best chance of another termination without adding unnecessary myocardial injury from higher energy. Escalation should be reserved for subsequent attempts if shocks continue to fail, following the device’s guidelines.