Which statement about EMI interference risk to medical devices is correct?

Which statement about EMI interference risk to medical devices is correct?

• A. It may cause skin burns near antennas.
• B. It may cause incorrect operation of medical implants and tools.
• C. It may degrade battery life of portable devices.
• D. It may cause visual glare on displays.

Answer: (B)

External electromagnetic fields can couple into the electronics of medical devices, especially implanted ones, and disrupt their sensing and function. This means EMI can lead to inappropriate pacing, inhibition of therapy, or false alarms in devices like pacemakers or implantable cardioverter-defibrillators, and it can also affect other electronic medical tools. That risk is why the correct statement emphasizes incorrect operation of implants and tools due to EMI. The other options don’t reflect the typical interference mechanism: burns would come from heating at very high exposure, not from EMI disrupting device operation; battery life reduction and visual glare aren’t primary EMI risks to medical devices in the context of non-ionizing radiation.

External electromagnetic fields can couple into the electronics of medical devices, especially implanted ones, and disrupt their sensing and function. This means EMI can lead to inappropriate pacing, inhibition of therapy, or false alarms in devices like pacemakers or implantable cardioverter-defibrillators, and it can also affect other electronic medical tools. That risk is why the correct statement emphasizes incorrect operation of implants and tools due to EMI. The other options don’t reflect the typical interference mechanism: burns would come from heating at very high exposure, not from EMI disrupting device operation; battery life reduction and visual glare aren’t primary EMI risks to medical devices in the context of non-ionizing radiation.