Startup Calibration - Dexcom G4 PLATINUM User Manual

7. Confirm that the blood glucose value you entered is correct. Entering incorrect values may
affect the sensor accuracy.
a. Press the
SELECT
b. If the blood glucose value shown is incorrect, press the
press the button to return to the Enter BG screen. Repeat the steps to enter the correct blood
SELECT
glucose value.
c. If you do not press the
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.
PRECAUTION
To calibrate the system, enter the exact blood glucose value that your blood glucose
meter displays within 5 minutes of a carefully performed blood glucose measurement.
Entering incorrect blood glucose values or blood glucose values from more than 5
minutes before entry might affect sensor performance, and you might miss a low or
high blood glucose value.

7.3 STARTUP CALIBRATION

Two hours after you start the sensor session (see Chapter 6, Section 6.7, Starting a Sensor Session) the
receiver tells you that you need to calibrate by showing the startup calibration prompt. This means you need
to calibrate with 2 separate blood glucose values from your meter. You will not see sensor glucose
readings until the receiver accepts the blood glucose values.
button if the blood glucose value displayed is correct.
button, the receiver will "time out" and no blood glucose value will be
SELECT
button to highlight "Cancel" then
RIGHT
41