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What is Continuous Glucose Monitoring (CGM)

What is CGM?

CGM gives users a more complete picture of their glucose levels and trends. Unlike a blood glucose meter which provides just a single reading with each fingerstick, CGM shows patients where their glucose is headed and how fast.

urgent alert

Continuous insight, day and night

CGM helps minimize the guesswork that typically comes from making decisions based solely on a single number from a blood glucose meter. CGM systems display information about glucose direction and rate of change up to every 5 minutes, providing patients with critical information to help inform their diabetes management decisions.

rtCGM data is continuous and offers more data than a standard glucose meter

More peace of mind

Every day, patients are frequently making decisions about their diabetes – when they eat, go for a run, or go to bed. With a Dexcom CGM system, these decisions are not made blindly, but instead with the knowledge of what their current glucose level is, where it's headed, and how fast. Dexcom G6 customizable alerts and alarm can warn users if glucose levels go high or low.

peace of mind
The Benefits of Dexcom CGM
Reduces A1C
Reduces A1C

Several studies have demonstrated that wearing a Dexcom CGM system is associated with significant A1C reductions.1-3

Reduces hypoglycemia
Reduces Hypoglycemia

Hypoglycemia presents a significant risk to the health and safety of your patients. Not only can Dexcom CGM use reduce A1C, but numerous studies have also shown it can also decrease time spent in hypoglycemia 1-7

Increases time in range
Increases Time in Range

Dexcom CGM is clinically proven to help patients increase the amount of time spent in range (TIR) by as much as five hours per day, regardless of their insulin delivery method.1,2,6,7

Reduces fear of hypoglycemia
Reduces Fear of Hypoglycemia

Dexcom CGM systems are equipped with alerts that can warn users of lows and highs. These warnings can provide an added layer of protection, day or night, giving patients and caregivers more peace of mind and reducing the fear of going low6,7



Dexcom G6 CGM Components

The Dexcom G6 CGM System contains three main components:

  1. Sensor – inserted just underneath the skin with a simple one-touch applicator, the sensor measures interstitial glucose levels.
  2. Transmitter – fastened on top of the sensor, this component sends data wirelessly to a display device.
  3. Display Device – displays glucose readings and trend data on a compatible smart device§ or optional touchscreen receiver.

Dexcom G6 also provides customizable alerts which can warn the wearer of approaching glucose highs and lows.

The three components of the Dexcom G6: G6 Sensor, G6 Transmitter, and a display device
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§ For a list of compatible devices, please visit Use of the smart watch requires the Dexcom G6 App on a compatible smartphone. 
† Type 1 participants with a baseline A1C of ≥ 8.5% 
‡ Type 2 participants with a baseline A1C ≥ 9.0% 
1 Šoupal J, et al. Diabetes Care 2020;43:37–43. 
2 Beck RW, et al. JAMA 2017;317 :371-78. 
3 Lind M, et al. JAMA 2017;317:379-87. 
4 Heinemann L, et al. Lancet 2018;391:1367-77. 
5 Riddlesworth T, et al. Diabetes Ther 2017;8:947-51. 
6 Reddy M, et al. Diabet Med 2018;35:483-90. 
7 Reddy M, et al. Diabetes Technol Ther 2018;20:751-57.