Which description matches Biotronik's Biphasic 2 shock waveform configuration?

Which description matches Biotronik's Biphasic 2 shock waveform configuration?

• A. 8J > 4J > 3ms tilt 50/50
• B. 12J > 6J > 2ms tilt 70/30
• C. 10J > 6J > 2ms, 60/2ms tilt
• D. 9J > 3J > 1.5ms tilt 60/40

Answer: (C)

Biotronik’s Biphasic 2 shock is a two-phase waveform where the first phase carries more energy than the second, and the overall pulse is kept short. The tilt describes how the voltage decays within each phase, shaping the waveform for effective defibrillation while limiting tissue damage. The configuration that best fits this pattern is the one with 10 joules for the first phase, 6 joules for the second phase, a short duration of 2 milliseconds, and a balanced tilt around 60/40. This matches the typical Biphasic 2 description: higher energy in the first phase, lower energy in the second, brief timing, and a moderate tilt. The other options differ by having different energy pairs, longer or shorter phase durations, or different tilt ratios, which do not align with the standard Biphasic 2 description.

Biotronik’s Biphasic 2 shock is a two-phase waveform where the first phase carries more energy than the second, and the overall pulse is kept short. The tilt describes how the voltage decays within each phase, shaping the waveform for effective defibrillation while limiting tissue damage. The configuration that best fits this pattern is the one with 10 joules for the first phase, 6 joules for the second phase, a short duration of 2 milliseconds, and a balanced tilt around 60/40. This matches the typical Biphasic 2 description: higher energy in the first phase, lower energy in the second, brief timing, and a moderate tilt. The other options differ by having different energy pairs, longer or shorter phase durations, or different tilt ratios, which do not align with the standard Biphasic 2 description.