Continuous Glucose Monitoring (CGM)
Monitoring glucose levels can be critically important for patients with diabetes. Unlike blood glucose meters (BGM), continuous glucose monitoring (CGM) devices help manage diabetes by providing real-time, glucose information about close levels, direction, and speed every 5 minutes – up to 288 readings in a 24-hour period. This kind of access to relevant and current information provides peace of mind by allowing patients to use the results of their glucose monitoring to make informed decisions about their nutrition, activity level, and medication.
A CGM system works through a tiny sensor that is inserted under the skin – usually on the belly or arm – and measures a patient’s interstitial glucose level found in the fluid between the cells. Glucose is tested every few minutes and the information is sent to a monitor via a wireless transmitter. The monitor may be part of an insulin pump or a separate device, which can be carried in a pocket or a purse. Some CGM devices can even send information directly to a smartphone or tablet.
Major Benefits of a CGM Monitor
CGM systems have distinct advantages over a standard blood glucose meter, including:
- Better management of glucose levels every day
- Fewer low blood glucose emergencies
- Less need for manual checking of glucose levels done by pricking fingers
The graphic on a CGM screen shows whether your glucose level is rising or dropping, as well as how quickly, enabling you to choose the best way to achieve your target glucose level.