User`s guide
Dexcom G4 User’s Guide | 51
a. When the receiver does not have a recent
sensor glucose reading the default is 6.7
mmol/L.
b. If there has been a sensor glucose reading in
the past 15 minutes, the “Enter BG” screen will
display your current sensor glucose reading
as your starting point. Do not use the current
sensor glucose reading for calibration. Use
only blood glucose values from your meter.
c. Before you take a blood glucose measurement to be used for calibration,
wash your hands, make sure your glucose test strips are not expired
and have been stored properly, and that your meter is properly coded (if
required).
Carefully apply the blood sample to the test strip following the instructions
provided with your meter or test strips.
5. To enter the blood glucose value, use the UP or DOWN button to scroll until
you see the correct value and then press the SELECT button.
6. Conrm that the blood glucose value you entered is correct. Entering
incorrect values may affect the sensor accuracy.
a. If the blood glucose value displayed is correct,
press the SELECT button.
b. If the blood glucose value displayed is incorrect,
press the RIGHT button to highlight “Cancel”
then press the SELECT button to return to the
“Enter BG” screen. Repeat the steps for re-
entering the correct blood glucose value.
c. If you do not press the SELECT button, the
receiver will “time out” and no blood glucose
value will be recorded for calibration.
7. The “Enter BG” processing screen will appear
to let you know the blood glucose value is being
processed for calibration.
HELPFUL H INT:
• “Enter BG” will be the second main menu option when you are in the
middle of a sensor session.