Can Diabetes trigger false positives on alcohol monitors?

Living with an alcohol monitor is stressful enough. If you also have diabetes, or even prediabetes, you may face another challenge: false positives.

Here’s why. When your body doesn’t process sugar properly, it produces ketones. These ketones (like acetone) can sometimes break down into chemicals that breath and skin alcohol monitors mistake for real alcohol.

​This doesn’t mean the device is “bad.” It means the science has limits. Breathalyzers that use fuel cells, and transdermal ankle monitors, can both react to ketones. In some cases, people with diabetes have seen readings that suggest they were drinking when they weren’t.

What you can do

• Tell your lawyer or monitoring officer if you have diabetes or prediabetes.
• Get medical records showing your diagnosis and treatment.
• Keep a log of your blood sugar and medications.
• Ask for retesting if you see a result that doesn’t match your reality.

Key takeaway: If you live with diabetes and are being monitored for alcohol use, you need to know that ketones can affect your results. Document everything, and don’t assume the monitor is always right.