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Eversense 365 CGM System Quick Reference Guide
Understanding Sensor Glucose versus Blood Glucose
• Your sensor measures glucose in the fluid in your skin tissue – called interstitial fluid. Your blood
glucose (BG) meter measures glucose in the blood.
• The glucose level in interstitial fluid and blood are usually close. Calibrating your system properly
is the best way to ensure they are as close as possible.
• Dierences between glucose levels in the interstitial fluid and the blood are especially evident
during times of rapid change in blood glucose (after eating, dosing insulin or exercising), and
for some people, during the first several days after insertion due to inflammation that may result
from the insertion procedure.
• Typically, the dierence you see is the sensor glucose level "lags behind" the blood glucose level
by several minutes.