The Importance of Regular Defibrillator Calibration
post-template-default,single,single-post,postid-17001,single-format-standard,bridge-core-2.8.6,qode-page-transition-enabled,ajax_fade,page_not_loaded,,qode-theme-ver-27.0,qode-theme-bridge,qode_header_in_grid,wpb-js-composer js-comp-ver-7.6,vc_responsive

The Importance of Regular Defibrillator Calibration

The Importance of Regular Defibrillator Calibration

Automated External Defibrillators (AEDs) play a vital role in saving lives during sudden cardiac arrest (SCA) events in the UK. These life-saving devices deliver an electrical shock to the heart, helping restore its normal rhythm. However, to ensure accurate performance and timely intervention, regular defibrillator calibration is crucial. In this blog post, we will explore the importance of regular defibrillator calibration within the UK market, the consequences of neglecting this critical maintenance step, and how it impacts the overall effectiveness of AEDs.

The Role of Defibrillators in SCA Events

Sudden cardiac arrest is a leading cause of death in the UK, claiming more than 30,000 lives each year. During an SCA, the heart’s electrical system malfunctions, causing it to stop beating suddenly. Without immediate medical intervention, the chances of survival decrease by 10% for every minute that passes.

Defibrillators, specifically AEDs, have emerged as essential tools for providing immediate treatment to SCA victims. These portable devices analyze the heart’s rhythm and deliver an electric shock if necessary, often before emergency medical services can arrive. By restoring the heart’s normal rhythm, AEDs can significantly increase the chances of survival and improve outcomes for SCA victims.

Why Regular Calibration is Essential

  1. Ensuring Accurate Readings: Defibrillators rely on sophisticated electronic components to analyse the heart’s rhythm and determine the appropriate electrical shock. Over time, these components may drift out of calibration, leading to inaccurate readings or improper shock administration. Regular calibration ensures that the defibrillator operates within the manufacturer’s specifications and provides the correct treatment when needed.
  2. Maintaining Legal Compliance: In the UK, the Medicines and Healthcare products Regulatory Agency (MHRA) sets guidelines for the maintenance of medical devices, including defibrillators. Regular calibration is necessary to comply with these guidelines and avoid potential legal ramifications.
  3. Ensuring Device Reliability: Regular calibration helps identify potential issues with the defibrillator before they become critical. This preventive maintenance approach ensures that the device remains reliable and ready for use during an emergency.
  4. Maximising Battery Life: Defibrillator batteries can lose their effectiveness over time, reducing the device’s ability to deliver the required shock. Calibration often includes battery testing, ensuring that the defibrillator’s power source remains in optimal condition.
  5. Protecting Your Investment: AEDs represent a significant investment for businesses, schools, and community organizations. Regular calibration helps protect this investment by ensuring the device remains in proper working order and delivers the necessary life-saving treatment when needed.

Consequences of Neglecting Calibration

  1. Inaccurate Shock Delivery: A miscalibrated defibrillator may deliver a shock that is too weak or too strong, potentially causing harm or failing to restore the heart’s normal rhythm. This could lead to poor patient outcomes or even loss of life.
  2. Legal Liability: Failure to maintain your defibrillator in accordance with MHRA guidelines may expose your organization to legal liability in the event of an SCA. This could result in significant financial losses and damage to your organization’s reputation.
  3. Reduced Device Lifespan: Neglecting regular calibration can lead to undetected issues that may shorten the lifespan of your defibrillator. This could result in the need for costly replacements or repairs.
  4. Decreased Confidence in the Device: Knowing that your defibrillator is properly calibrated and maintained can provide peace of mind to your staff, customers, and community members. Neglecting calibration can erode this confidence, making people less likely to use the device in an emergency.

How to Ensure Regular Calibration

  1. Schedule Regular Maintenance: Create a maintenance schedule based on the manufacturer’s recommendations and MHRA guidelines. This will help ensure that your defibrillator is calibrated and serviced at regular intervals to maintain optimal performance.
  2. Choose a Reputable Calibration Service: Partner with a reliable and experienced defibrillator calibration service provider. Ensure that they are accredited and have a proven track record in the industry. This will give you peace of mind that your defibrillator is being calibrated to the highest standards.
  3. Keep a Calibration Log: Maintain a detailed log of all calibration and maintenance activities, including the date, technician, and any issues identified and resolved. This will not only help you stay organized but also provide documentation in the event of an audit or legal inquiry.
  4. Train Your Staff: Educate your team members about the importance of defibrillator calibration and the role it plays in saving lives during SCA events. Encourage them to report any issues or concerns with the device, ensuring that problems are addressed promptly.
  5. Stay Informed About Industry Standards: Keep up to date with any changes in MHRA guidelines and industry best practices. This will help you adapt your calibration and maintenance protocols as needed to remain compliant and ensure the highest level of care for SCA victims.


Regular defibrillator calibration is critical to the overall effectiveness of AEDs in the UK market. By ensuring accurate readings, maintaining legal compliance, and promoting device reliability, calibration plays a vital role in improving patient outcomes during SCA events. Don’t underestimate the importance of regular calibration for your defibrillator. By following the recommendations outlined in this blog post, you can help protect your investment, safeguard your organization from potential legal liabilities, and, most importantly, save lives.

Bespoke Medical equipment calibration services tailored to your individual needs.