Faulty Glucose Monitors Blamed for Deadly Consequences

Letitia Perry shares her personal experience with a medical device designed to help manage diabetes, but which has now been linked to hundreds of hospitalizations.

Jan. 29, 2026 at 6:39pm

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News anchor Letitia Perry opens up about living with Type 2 Diabetes and using a continuous glucose monitor (CGM) to manage her condition. However, she and others have experienced issues with faulty Libre-3 Plus Meters that have been providing inaccurate blood sugar readings, leading hundreds of patients to take actions that have proven deadly for some. The story explores the dangers of uncontrolled diabetes and the life-changing impact of CGM technology when it works properly.

Why it matters

This story highlights the critical importance of medical devices functioning as intended, especially for managing chronic conditions like diabetes. Faulty glucose monitors can have severe consequences, including life-threatening situations, underscoring the need for rigorous quality control and oversight of such devices. It also emphasizes the transformative impact that CGM technology can have in improving the lives of diabetics when the devices work correctly.

The details

Letitia Perry, a news anchor living with Type 2 Diabetes, uses a continuous glucose monitor (CGM) to track her blood sugar levels in real-time on her phone. However, thousands of patients have received warnings about faulty Libre-3 Plus Meters that have been providing inaccurate low readings, causing some to take actions that led to dangerously high blood sugar levels. In some cases, this proved fatal for 7 individuals. Dr. Miguel Parilo of the Bull Family Diabetes Center explained that the sensors were "not produced correctly" and led patients to incorrectly try to raise their blood sugar, ultimately going too high. For Letitia, a night of faulty CGM readings prompted her to manually check her levels, which were alarmingly high.

  • In 2026, thousands of patients received letters warning them about the health risks of the faulty Libre-3 Plus Meters.
  • Last year, thousands of people wearing the faulty meters took actions that led to 7 deadly mistakes.

The players

Letitia Perry

A news anchor living with Type 2 Diabetes who uses a continuous glucose monitor to manage her condition.

Dr. Miguel Parilo

A physician at the Bull Family Diabetes Center who explained the issues with the faulty glucose monitors.

Trevor and Aubree Kushmaul

Parents of a child with Type 1 Diabetes who have seen the life-changing impact of continuous glucose monitoring technology.

Hannah Quinter

A dietary assistant in Celina who depends on a continuous glucose monitor but acknowledges the accuracy issues.

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What they’re saying

“These sensors were not produced correctly, reading low blood sugar even though the blood sugar was not low. I'm on insulin, immediately tried to correct that.”

— Dr. Miguel Parilo, Physician, Bull Family Diabetes Center

“When you weigh the pros and cons, life changing. To continue to be a kid, his mom and I have peace of mind.”

— Trevor Kushmaul

“People don't realize we are manually operating an organ. Normal people don't have to do that, ensuring our numbers are good.”

— Hannah Quinter, Dietary Assistant

What’s next

If patients have a Libre-3 Plus Meter, they can call the manufacturer to request a free replacement.

The takeaway

This story underscores the critical importance of medical devices functioning as intended, especially for managing chronic conditions like diabetes. Faulty glucose monitors can have severe, even deadly, consequences, highlighting the need for rigorous quality control and oversight to ensure patient safety. It also emphasizes the transformative impact that continuous glucose monitoring technology can have when working properly.