Calibration - Dexcom G6 User Manual

Call Tech Support Screen
Problem
• Screen is locked.
Solution
• No alarm/alerts or readings until fixed. Use meter.
• If same code displays again, write it down and contact Technical Support (see
beginning of chapter).

14.6 Calibration

G6 Reading ≠ Meter Value
Problem
G6 reading and meter value don't match
Solution
• Different body fluids give different numbers:
o Meter measures glucose from blood.
o Sensor measures glucose from interstitial fluid.
• Follow the 20/20 rule:
o When meter = 80 mg/dL or less: CGM reading should be within ± 20 points.
For example, if meter is 70 mg/dL, CGM reading should be between 50 and 90
mg/dL.
o When meter = 80 mg/dL or more: CGM reading should be within ± 20%.
For example, if meter is 90 mg/dL, CGM reading should be between 72 and 108
mg/dL.
• Outside of 20/20 rule: Calibrate again.
• See Chapter 7.
Calibration Range — Low or High Instead of Reading
Problem
System doesn't accept calibration
Solution
• Is your calibration in range? System only accepts calibrations between 20 and 600
mg/dL
• Is system showing LOW or HIGH after a calibration? The system shows LOW or
HIGH until your reading is between 40 and 400 mg/dL.
LBL014003 Rev 001 Dexcom G6 User Guide