What is the third energy level used on Lifepak for defibrillation?

What is the third energy level used on Lifepak for defibrillation?

• A. 200J
• B. 300J
• C. 360J
• D. 420J

Answer: (C)

Shocks on Lifepak defibrillators follow an energy ladder for biphasic waveforms. The goal is to escalate energy with each consecutive shock to improve the chance of converting the rhythm while minimizing myocardial injury. On Lifepak devices that use biphasic energy settings, the typical sequence is 200 joules for the first shock, 300 joules for the second, and 360 joules for the third. So the energy used on the third attempt is 360 joules. This higher third shock aims to maximize effectiveness if the earlier, lower-energy shocks did not achieve ROSC, while still keeping safety in mind. After delivering these shocks, continue CPR and follow the standard post-defibrillation protocol.

Shocks on Lifepak defibrillators follow an energy ladder for biphasic waveforms. The goal is to escalate energy with each consecutive shock to improve the chance of converting the rhythm while minimizing myocardial injury. On Lifepak devices that use biphasic energy settings, the typical sequence is 200 joules for the first shock, 300 joules for the second, and 360 joules for the third. So the energy used on the third attempt is 360 joules. This higher third shock aims to maximize effectiveness if the earlier, lower-energy shocks did not achieve ROSC, while still keeping safety in mind. After delivering these shocks, continue CPR and follow the standard post-defibrillation protocol.