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Blood Glucose Meter Safety Alert Issued for Risk of Delayed Treatment

Affected devices are tied to 114 injuries and one death


A professional product shot features four black and silver digital blood glucose monitors from the TRUE METRIX brand, all displaying a reading of 102 mg/dL.
Business Wire/AP Photo

This article was created with the assistance of generative AI. It was reviewed by editors before publication.

Trividia Health has issued corrected instructions for True Metrix blood glucose meters after 114 serious injuries and one death were linked to confusing guidance for a critical error message tied to when to seek medical care, according to the Food and Drug Administration (FDA).

The company says the products do not need to be removed from stores or homes, and owners can continue using the meters. The update only affects the owner’s booklets, instructions and online help guides.

Why the alert was issued

The issue involves how the instructions explain what to do when the system displays an "E-5" error code, which can appear during:

  • A very high blood glucose event (over 600 mg/dL), or
  • A test strip error

The previously written instructions could lead to a delay in treatment if a user receives an E-5 code and does not seek medical attention immediately while experiencing symptoms of high glucose, the FDA says. A delay in treatment could lead to serious complications—including dehydration, confusion or death—especially in people with very high blood-sugar levels.

Since August 2014, when True Metrix was launched globally, there have been 114 reported serious injuries, and one death associated with the E-5 code.

Which blood glucose meters are affected?

The correction applies to the following products sold in the United States, United Kingdom, Mexico, Australia and the Caribbean, including store-brand versions.

  • True Metrix Self-Monitoring Blood Glucose System
  • True Metrix Air Self-Monitoring Blood Glucose System
  • True Metrix Go Self-Monitoring Blood Glucose System
  • True Metrix Pro Professional Monitoring Blood Glucose System

Retailers, distribution partners and store-brand versions include:

Care One (Ahold), CenterWell (Humana), CVS, Discount Drug Mart, Foster & Thrive/Sunmark/Healthmart (McKesson), Good Neighbor Pharmacy (Cencora), HEB, Henry Schein, HyVee, Kroger, Leader (Cardinal Health), McKesson (Med Surg), Meijer, ProCure (WynnMed), Publix, ReliOn (Walmart), Rite Aid, Signature Care (Albertsons), Top Care (TopCo), Walgreens, Farmacias Benavides (in Mexico).

For the full list of affected products, including descriptions, item numbers and UPC codes, click here.

What should consumers do?

Follow the updated E‑5 instructions below and share them with anyone who helps you monitor your blood sugar.

If you see E‑5 on a True Metrix meter:

  • Retest with a new test strip.
  • If the error persists and you have symptoms such as fatigue, excess urination, thirst or blurry vision, seek medical attention immediately.
  • If the error continues, call Trividia at (800) 603-6025(Monday through Friday).

Trividia customer support:

The products do not need to be returned or replaced, as this is not a recall.

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