Dexcom G5 mobile User Manual page 96

WARNING
Do: Calibrate at least once every 12 hours.
Why: Calibrating less often than every 12 hours might cause inaccurate sensor
glucose readings.
Consequences: Missing severe low (hypoglycemia ) or high (hyperglycemia) Alarm
or Alerts.
PRECAUTION
Do: Look at trend arrows before calibrating. Trend arrows help you determine if you can
calibrate now or should wait.
Don't: Never calibrate if your blood glucose is changing at a significant rate, typically more
than 2 mg/dL per minute.
Never calibrate when you see:
• A single arrow, pointing up
○ Rising 2-3 mg/dL each minute
• Two Arrows pointing up
○ Rising more than 3 mg/dL each minute
• Single arrow pointing down
○ Falling 2-3 mg/dL each minute
• Two arrows pointing down
○ Falling more than 3 mg/dL each minute
Why: Calibrating during significant rise/fall of blood glucose may affect accuracy of sensor
glucose readings.
Consequences: You may miss a severe low or high glucose event.
PRECAUTION
Do: Enter the exact BG value displayed on your BG meter within five minutes of a carefully
performed fingerstick measurement.
Why: Entering the wrong blood glucose values, or waiting more than five minutes before
entry, might affect sensor accuracy.
Consequences: You may miss a severe low or high glucose events.
Dexcom G5 Mobile System User Guide
Calibration 94