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Different and Accurate

Why are glucose readings different?
Rather than taking glucose readings from your blood, CGM sensor
readings are taken from interstitial fluid, a thin layer of fluid that
surrounds the tissue cells below your skin. As carbohydrates
are digested, glucose enters your bloodstream before they are
absorbed into the interstitial fluid.
Think of glucose readings as the cars of a train where the front
of the train is blood glucose and the back of the train is sensor
glucose.
BG = Blood Glucose
SG = Sensor Glucose
SG
88
When the train is traveling on a flat track, where there is little
fluctuation between glucose levels, blood glucose and sensor
glucose are similar.
Pg 26 of 32
BG
91
BG
Meals
160
SG
116