Tips for Entering BG Meter Values
Dexcom G5 Mobile CGM System Quick Start Guide • 23
WARNING: Calibrate at least once every 12
hours. Calibrating less often than every 12
hours might cause sensor glucose readings
to be inaccurate, resulting in you missing a
severe low or high glucose event.
The meter icon shows a red
badge when a BG meter value
is needed.
See your user guide for more details.
Do enter BG Meter Values:
Don’t enter BG Meter Values:
• After washing and drying your hands
• Within 5 minutes of obtaining the value from your BG meter
• Using the exact number from your BG meter
• Using only fingerstick blood glucose values
• If you see a ??? (question mark) or signal loss error on the screen
• After you have taken acetaminophen (such as Tylenol
®
)
• If your BG meter value is higher than 400 mg/dL or lower than 40 mg/dL
After your initial BG meter values, BG meter values must be entered once every 12
hours at a minimum.
When using both the app and the receiver at the same time, you should enter BG
meter value in only 1 device. When you enter a value into one device, the sensor
glucose values may be different on the other display device until the transmitter shares
the entered value.
5.3 Enter BG Meter Value Every 12 Hours
App Setup & Operation
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