User`s guide
Dexcom G4 PLATINUM User’s Guide | 71
a. When the receiver does not have a recent
sensor glucose reading the default is 120
mg/dL.
b. If there has been a sensor glucose
reading in the past 15 minutes, the “Enter
BG” screen shows your current sensor
glucose reading. Do not use the current
sensor glucose reading for calibration.
Use only blood glucose values from your
meter.
6. Use the UP or DOWN button to scroll until you see the correct blood
glucose value, and then press the SELECT button.
7. Conrm that the blood glucose value you entered is correct.
Entering incorrect values may affect the sensor accuracy.
a. Press the SELECT button if the blood
glucose value displayed is correct.
b. If the blood glucose value shown is
incorrect, press the RIGHT button to
highlight “Cancel” then press the SELECT
button to return to the “Enter BG” screen.
Repeat the steps to enter 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.
8. The “Enter BG” thinking screen lets you
know the blood glucose value is being used
for calibration.
9. For 2-hour startup calibration, repeat these
steps for the second blood glucose value.
A sensor glucose reading appears on the
receiver right away, and sensor glucose
readings are updated every 5 minutes.
If readings do not appear immediately, see
Chapter 13, Section 13.2, Calibration Troubleshooting.
Enter BG screen,
OKhighlightedtoconrm
Enter BG screen
“thinking”
Enter BG screen,
default is 120 mg/dL