A continuous glucose monitor (CGM) has two parts. You wear one part-the sensor-against your skin. It has a tiny needle that stays under your skin and constantly reads your blood sugar level. It sends this information to a wireless receiver. The receiver can tell you if your blood sugar is going up or down-and how fast. And you can view the stored data on a computer to help you identify trends in your blood sugar level.
CGMs communicate with some bloodglucose meters and even insulin pump systems. All CGMs need to be calibrated regularly with a blood glucose meter to be sure the readings are accurate.
ByHealthwise Staff Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine Specialist Medical ReviewerRhonda O'Brien, MS, RD, CDE - Certified Diabetes Educator
Current as ofNovember 14, 2014
WebMD Medical Reference from Healthwise
November 14, 2014
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