What is a CGM?

Continuous Glucose Monitor 101

Tia avatar
Written by Tia
Updated over a week ago

Veri is powered by continuous glucose monitors (CGMs), also referred to as "sensors". The sensor uses a thin, flexible filament to measure the amount of glucose in the interstitial fluid in the back of your upper arm.

As you can see, it’s tiny so you likely will not feel or notice it during daily life.

No pain – even when inserting

Here are the instructions for applying the sensor, which most of our customers report is a painless process.

Make sure to always open the Veri app first before inserting the sensor. When you open the app, you'll receive step-by-step instructions on how to apply the sensor.

Live freely

You can do anything you’d normally do while wearing a CGM. Running, swimming, and lifting weights are all gravy.

Ditto for showering. You won’t even notice the sensor while you sleep.

Also, Veri comes with a protective patch that almost completely eliminates the already small risk of snagging it on a doorway.

Stores 8 hours of readings

Veri uses an Abbott Freestyle Libre, which holds 8 hours of glucose data at a time.

This means you have to scan it with your phone at least once every 8 hours to get uninterrupted data. (Once when you wake up, once before bed, and a time or two in between.)

Scanning any less frequently will result in data gaps. So, more data = more value from the app.

Lasts 14 days

CGMs last for two weeks from insertion. They take an hour or so to calibrate and aren’t quite as accurate in the very first and very last part of their lifecycle.

How does a CGM compare to other glucose measurement devices that use a finger prick?

Finger prick readings and CG scans are not directly comparable. The finger prick is a one-time measurement from a capillary resource while the CGM measures continuously from interstitial fluid.

CGMs are intended to track trends and see your overall condition with glucose, whereas blood tests give you a snapshot of a given (predetermined) moment. As the CGM measures from interstitial fluid, there is a slight delay compared to the blood measurement. You can learn more about the differences here.

Note: Veri shall not be used for medical use or practice. This includes use cases of seeking medical advice, preventing, diagnosing, or treating any medical condition, including conditions related to blood sugar control such as diabetes.


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