FDA Urges Switch from True Metrix Glucose Meters Over Error Code Risk

The U.S. Food and Drug Administration has advised users of Trividia Health’s True Metrix blood glucose monitoring systems to move to alternative testing methods due to a critical error code issue.

The concern stems from the device displaying the same E-5 error code for two very different situations—extremely high blood glucose levels and test strip malfunctions. This overlap raises the risk of misinterpretation, potentially delaying urgent treatment or leading to incorrect responses.

Trividia has recalled millions of instruction booklets and updated labelling to clarify the issue, though the meters and test strips remain available. The recall also impacts co-branded products distributed through partners such as CVS, Kroger, and Walgreens.

The FDA highlighted that high-risk patients—including those on intensive insulin therapy or prone to glucose fluctuations—should prioritise switching devices. Reports linked to the issue include over 100 serious injuries and one death, underscoring the importance of accurate glucose monitoring.

03-05-2026