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FDA Updates Advice for People Using TRUE METRIX Blood Glucose Meters

Vetted by Stefan Rest 2 min read

On April 28, 2026, the FDA issued a safety communication for people who use TRUE METRIX blood glucose meters. It updated that communication on May 19. The advice has two parts that go together: switch to another way of testing when you can, but keep testing until you do. Here is what the FDA said and when.

Why the FDA spoke up

TRUE METRIX meters can show an E-5 error for two different reasons. It can mean blood sugar above 600 mg/dL. It can also mean a problem with the test strip.

The FDA says this may cause a person to miss or delay care for very high blood sugar. Or a person might treat very high blood sugar that is not really there.

How the guidance developed

  • February 6, 2026: Trividia sent customers a correction notice with updated E-5 instructions.
  • February 2026: The FDA posted an early alert about the correction.
  • April 28, 2026: The FDA issued its safety communication and said the recall is Class I, its most serious type.
  • May 1, 2026: Trividia sent an updated notice that also advised switching to another testing method where possible.
  • May 19, 2026: The FDA updated its safety communication to link to Trividia’s updated notice. It said its own recommendations for patients and caregivers had not changed.

What the FDA recommends

The FDA recommends that people use another method of testing blood sugar, if possible, until corrected meters become available.

It also says to keep testing. Do not stop using a TRUE METRIX meter until another method is available. Going without testing carries its own risks.

The FDA says people should talk with a health care provider or pharmacist about switching. It says switching is especially important for people on intensive insulin therapy or sulfonylureas, and for people who often have very high or very low blood sugar.

If you see E-5

The FDA says to remember that E-5 could mean blood sugar above 600 mg/dL or a strip error. With a strip error, blood sugar could be normal, dangerously low or dangerously high.

If you get E-5 and have symptoms of high or low blood sugar, the FDA says to contact your health care provider right away.

Check the FDA for current directions

This article summarizes the FDA’s guidance as of September 25, 2026. It is not medical advice. Guidance can change, so read the FDA’s safety communication for its current instructions. Trividia says it is working with the FDA on updated meter software.

Problems with a meter can be reported to the FDA through MedWatch.

If someone was seriously harmed after an E-5 error, learn how CBW Law reviews TRUE METRIX recall injuries. A recall does not mean every user has a claim, and no outcome can be promised.

The FDA’s advice here applies only to TRUE METRIX meters. Other glucose monitor recalls come with their own instructions, which our guide to glucose monitor recalls and injuries links to.

This article is general information about how these cases work. It is not legal advice, it does not create an attorney-client relationship, and no two claims are alike. If something here sounds like your situation, the useful next step is a conversation about the facts.

Sources and citations

Statutes, regulations, agency material and decisions referred to above.

  1. Risks of Using TRUE METRIX Blood Glucose Monitoring Systems by Trividia Health: FDA Safety CommunicationU.S. Food and Drug AdministrationApril 28, 2026; updated May 19, 2026. Source of the FDA’s recommendations, the E-5 guidance and the statement that recommendations did not change with the update. Checked September 25, 2026.
  2. Blood Glucose Monitor Recall: Trividia Health Issues Correction for TRUE METRIX Blood Glucose Monitoring SystemsU.S. Food and Drug AdministrationContent current as of May 19, 2026. Source of the dates of Trividia’s February 6 and May 1, 2026 letters and the Class I classification.
  3. Trividia Health Correction for TRUE METRIX Blood Glucose Monitoring SystemsU.S. Food and Drug AdministrationCompany announcement dated May 1, 2026, posted by the FDA. Cited for Trividia’s updated advice and its plan for updated meter software.
  4. MedWatch: The FDA Safety Information and Adverse Event Reporting ProgramU.S. Food and Drug AdministrationWhere patients and providers can report a device problem.

Vetted by

Stefan Rest, managing director of CBW Law

Stefan Rest

Managing Director, CBW Law

Stefan Rest has spent more than two decades advocating for consumers and helping people understand how the law may provide a path forward when they’ve been wronged. As Managing Director of CBW Law, he oversees client relations, the firm’s national law-firm network and new partnerships. He writes about developing litigation and consumer legal issues because the right information can help people recognize when their own story may matter.

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