How does a Continuous Glucose Monitoring System work?
1When you wear the CGMS, the glucose sensor reaches beneath your skin to the interstitial fluid.
2The surface of the sensor contains enzymes that react with glucose. The reaction generates electrical signals, which the CGMS uses to measure the concentration of glucose in the interstitial fluid.
3The transmitter sends these measurements to your smart device, where they are displayed as graphs and figures in an app.
4Typically it takes five to ten minutes for glucose to move from the blood to the interstitial fluid. As a result, measurements taken using this method don't always match conventional blood glucose monitor readings.