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What is a blind continuous glucose monitor system?

Steven Edelman, MD
Endocrinology Diabetes & Metabolism
A blinded continuous glucose monitoring (CGM) is a device that a person with diabetes wears for three to five days to measure blood sugar (glucose), but cannot see any of the measurements. No alarms will go off even if your blood sugar is extremely high or dangerously low. There are no arrows to show which way your blood sugar is moving. You are unable to see how food, exercise, stress and other factors affect your diabetes control.

The blinded CGM is a loaner unit. That means you return it to the clinic or doctor’s office and the data is downloaded there. When you see your doctor again, you go over the results, hoping to find trends and patterns in order to make diabetes therapy management decisions.
William Lee Dubois
Endocrinology Diabetes & Metabolism
The first CGM was a blind device. It was mute, deaf, and dumb to the person wearing it. It watched silently in the night like some kind of sinister spy. It was not until after it was taken off your body that it gave up its secrets.

Now the CGM species has returned to its origins. Medtronic, makers of the original blind CGM, is now making the i-Pro, a modern, sleek, higher tech version of the original blind CGM. Dexcom too, has a way to mute their monitor so that it won’t talk to the patient. Both these systems are not for you. They are for your doctor, but they give many diabetics who cannot afford full-time systems a way to peek into their bodies and see how their diabetes therapy is working for them. Ask your doctor if a blind CGM trial is right for you.
Beyond Fingersticks: The art of control with continuous glucose monitoring

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Beyond Fingersticks: The art of control with continuous glucose monitoring

Everything you ever wanted to know about CGM (but didn’t know to ask)!Continuous Glucose Monitoring (CGM), the revolutionary technology that’s poised to completely change diabetes care, gives you...

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What Is Continuous Glucose Monitoring?
What Is Continuous Glucose Monitoring?

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.