What it may mean

Sensor glucose values, which are based on interstitial fluid glucose levels, can be different from blood glucose levels (fingersticks), particularly during times when your blood glucose is changing quickly. For example, after eating, taking insulin, or exercising. When glucose levels are falling quickly, glucose readings from the sensor may be higher than blood glucose levels. On the other hand, when glucose levels are rising quickly, glucose readings from the sensor may be lower than blood glucose levels.

What you can do

If your glucose readings and alarms from the system do not match your symptoms or expectations, use a fingerstick blood glucose value from a blood glucose meter to make diabetes treatment decisions.