FDA warns that smartphone-compatible diabetes devices may not work properly

The U.S. Food and Drug Administration (FDA) is warning patients with diabetes about the risk of missing critical safety alerts when using continuous glucose monitors, insulin pumps, automated insulin dosing systems and any other similar medical devices. 

While smartphones have made it easier than ever for patients to track their own insulin levels, the convenient technology is far from infallible. In fact, the FDA has received multiple reports of smartphone-compatible medical devices failing to send expected health alerts. When this happens, the agency warned, it creates a risk of patients experiencing severe hypoglycemia, severe hyperglycemia, diabetes ketoacidosis or even death.

“Modern medical devices, such as diabetes devices that connect to a smartphone, can provide users with the convenience and flexibility to configure alerts that are personalized to them,” Courtney Lias, director of the Office of In Vitro Diagnostic Products in the FDA’s Center for Devices and Radiological Health, said in a statement. “However, users should stay aware of alert settings and monitor these devices to ensure they continue to receive critical alerts as expected. Even if configured correctly, certain hardware or software changes can interrupt the expected operation of these critical devices, which can lead to patient harm if undetected.”

The FDA’s warning focused on three primary factors that can cause patients to miss out on urgent health alerts:

  • Software configuration issues, such as app notification permissions, using “do not disturb” or “focus mode” or the app entering “deep sleep” after a period of not being used.
  • Connecting new hardware to the smartphone, such as connecting to car audio or using wireless earphones, that can change the default volume of alerts or prevent delivery of alerts.
  • Smartphone operating system (OS)  updates that are not supported by the medical device application.

With those common issues in mind, the agency emphasized that device manufacturer instructions should always be followed as closely as possible and smartphone OS updates should only be completed after confirming they will not impact a medical device’s effectiveness. At least once per month, patients should review their settings to ensure all alerts are properly configured, the FDA added.

Michael Walter
Michael Walter, Managing Editor

Michael has more than 18 years of experience as a professional writer and editor. He has written at length about cardiology, radiology, artificial intelligence and other key healthcare topics.

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