Which action enables therapy on the device during implant/follow-up?

• A. Circle ICD THERAPY ON
• B. Reinterrogate
• C. Final printout
• D. Document the patient consent

Answer: (A)

Enabling therapy on an ICD during implant or follow-up ensures the device is active and capable of delivering treatment when a dangerous rhythm is detected. The therapy settings control whether the device will deliver anti-tachycardia pacing or a shock in response to detected tachyarrhythmias. Verifying that therapy is ON is essential to confirm the device will actually treat arrhythmias during testing and routine follow-up. Other actions serve different purposes: reinterrogation retrieves data from the device, the final printout is just documentation of results, and documenting patient consent is administrative and does not adjust device function. Therefore, turning ICD therapy on is the correct action.