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Originally Posted On: https://smilesmed.com/what-is-a-continuous-glucose-monitor/

Continuous Glucose Monitors (CGM) are devices used for monitoring blood glucose on a continual basis by people with either Type I or Type II diabetes. CGMs allow blood glucose to be displayed in real time continuously and its use allows trends in blood glucose to be displayed over time. Unlike traditional blood glucose monitoring, most CGMs report on blood sugar levels (at least) every five minutes. This data takes much of the guesswork out of managing diabetes by identifying fluctuations caused by food, exercise, and lifestyle choices.

How do Continuous Glucose Monitors (CGMs) work?
A Continuous Glucose Monitor is a convenient alternative to traditional blood glucose monitors. No more dealing with constant finger pricks!

A CGM is made up of a reader and a sensor.

The sensor is a small electrode that is placed under the skin and held in place by an adhesive. Due to its small size, it is barely noticeable. The sensor takes blood sugar readings at set intervals and sends the data to the reader.

The reader stores and monitors the data it receives. With an easy-to-use touch screen, the reader makes it simple to access trends and helps you keep track of your blood sugar levels so they stay within a certain range.

Are Continuous Glucose Monitors (CGMs) Accurate?
The Continuous Glucose Monitoring systems sold by Smiles Med have been approved for use by patients with diabetes by the FDA.

You may want to complete a finger prick test when you first start using a CGM to calibrate your blood sugar levels, or to confirm any unusually high or low readings from your CGM.

Because continuous glucose monitoring systems are doing readings at least every five minutes, CGMs allow users to identify fluctuations in blood glucose levels more accurately than using a finger prick method.

How long does a Continuous Glucose Monitor (CGM) last?
Sensors are the component of the CGM system that are replaced on a regular basis. The Sensors are water resistant and designed to remain in place while swimming, showering, or most other activities.

Sensors can last between 10-14 days depending on wear and usage; and the manufacturer.

How do I qualify for a Continuous Glucose Monitor (CGM)?
CGMs are regulated by the FDA. This means that they are only approved for use with a prescription from your doctor.

We recommend that you speak with your doctor to determine whether a CGM is right for you.

Will insurance cover a Continuous Glucose Monitor (CGM)?
Medicare, Medicaid, and most other insurance providers can also cover continuous glucose monitors as long as you have a prescription and meet certain criteria. There are many variables that determine what your insurance will cover and if there are any co-pay costs.

If you are a Medicare patient, you may be eligible for no out-of-pocket costs. Please call us at (866) 881-8637 for a free benefits check, to learn if your insurance will cover a CGM and what percentage of the costs they will cover.

What criteria do I need to be eligible for a Continuous Glucose Monitor (CGM) under Medicare?
In order to be eligible under Medicare, you must have a doctor’s prescription and meet the following criteria:

01. Take insulin at least once per day (Injected or inhaled) or use an insulin pump; and
02. Visited Your Doctor in the last 6 months

If you don’t meet the criteria, you can still purchase a CGM out-of-pocket if you have a doctor’s prescription.