User's Manual

G4-Global System User’s Guide | 67
5.4 GLUCOSE STATUS AREA ON TREND GRAPHS
5.4.1 GLUCOSE STATUS AREA SYMBOLS
During your Sensor session the “Status Area” in the upper right hand corner of
the Trend Graph may display any of the information below.
This device is not designed to replace a blood glucose meter. When
there is Missing Glucose Information, rely on fi ngerstick readings
from your blood glucose meter.
Symptoms related to low or high blood glucose levels should not be
ignored. If you have symptoms of low or high glucose, confi rm them
with fi ngerstick readings from your blood glucose meter.
Calibration
Needed
A blood drop means your System requires you to enter another
fi ngerstick reading. You may need to enter a fi ngerstick reading for your
12-hour calibration, or the Receiver might need an additional fi ngerstick
reading to improve its calibration. (See Chapter 4, Section 4.2.)
Glucose
Reading
Error
Three question marks mean the Receiver does not understand the
Sensor signal. You should wait for more prompts and do not enter any
fi ngerstick readings when you see this symbol. (See Section 5.4.3.)
RF Error
An antenna symbol with a line through it and a circle around it, means
the Sensor/Transmitter and Receiver are out of range. Make sure the
Receiver and Sensor/Transmitter are within 20 feet (6 meters) of each
other. (See Section 5.4.4.)