What does the term 'shock vector' refer to in Biotronik ICD terminology?

What does the term 'shock vector' refer to in Biotronik ICD terminology?

• A. The path the shock energy takes through the can and leads
• B. The energy storage capacitor location
• C. The device's battery status
• D. External defibrillator arm

Answer: (A)

Shock vector is the path the high‑voltage defibrillation current takes through the device and the heart during a shock. In Biotronik ICDs, the energy is stored in a high‑voltage capacitor and is discharged between active electrodes—the device can (the can) and one or more defibrillation coils or return electrodes. The chosen vector defines which electrodes are involved, so the current flows through a specific route in the myocardium. This path influences how effectively the shock terminates a dangerous rhythm. The other options don’t describe this current path: the capacitor’s location is about where energy is stored, battery status isn’t about the shock route, and an external defibrillator arm isn’t part of the device’s shock vector.

Shock vector is the path the high‑voltage defibrillation current takes through the device and the heart during a shock. In Biotronik ICDs, the energy is stored in a high‑voltage capacitor and is discharged between active electrodes—the device can (the can) and one or more defibrillation coils or return electrodes. The chosen vector defines which electrodes are involved, so the current flows through a specific route in the myocardium. This path influences how effectively the shock terminates a dangerous rhythm. The other options don’t describe this current path: the capacitor’s location is about where energy is stored, battery status isn’t about the shock route, and an external defibrillator arm isn’t part of the device’s shock vector.