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Pacemaker / Defibrillator Interrogation

Also known as:
Pacemaker – Pacemaker
Defibrillator – Automated Implantable Cardioverter Defibrillator (ACID) or Implanted Cardioverter Defibrillator (ICD)

Duration: About 10 to 15 minutes

Our clinic performs the pacemaker/defibrillator interrogation and monitors the results.

Evaluation & Follow ups:

  • Pacemaker – the initial evaluation is performed approximately 1 month after the implantation and follow-ups are recommended every 3 months
  • Defibrillator – the initial evaluation is performed approximately 1 month after the implantationand and follow-ups are recommended every 6 to 12 months.


Preparing for the test:

  • There are no special preparations required.
  • If you are unable to make it to your scheduled appointment, please call 972-572-1600 at least 24 hours ahead to reschedule to avoid any cancellation fees.

How it is performed:

  • A wand will be placed over your chest where the implanted device has been placed to “interrogate”/evaluate its wire function and battery life.
  • Your cardiologist will have a programmer that interacts with your pacemaker or defibrillator.
  • The leads are checked to make sure the electric signals from the device are going to and returning from your heart.

After the test:

  • The results from the interrogation will be discussed with you.
  • Your cardiologist will provide further instructions regarding the device.
  • You can continue your daily activities.
  • Ask your cardiologist if you have any questions or concerns.

Neuenschwander JF, Peacock WF, Migeed M, et al. Safety and efficiency of emergency department interrogation of cardiac devices. Clin Exp Emerg Med. 2016;3(4):239-244. Published 2016 Dec 30. doi:10.15441/ceem.15.118
Neuenschwander J et al. Utilization of a read-only pacemaker and defibrillator interrogator in the emergency department and hospital. Acad Emerg Med. 2020 Mar 3; [e-pub]. (https://doi.org/10.1111/ACEM.13950)