User`s guide

144 | Dexcom G4 Continuous Glucose Monitoring System
12
What will I see
on the receiver
screen?
Prompt,
alert or
alarm?
What does this
mean?
How will the
receiver notify
me?
(vibrate and/or
beep)
Will the
receiver
re-notify
me?
Out of
range alert
The transmitter and
receiver are not
communicating and
you will not receive
sensor glucose
readings.
1 vibrate then
vibrate/beep every
5 minutes until
the receiver and
transmitter are
back in range.
No unless
you have
turned on the
out of range
alert.
Unknown
sensor
prompt
The sensor
is sending
sensor glucose
readings that the
receiver does not
understand. You will
not receive sensor
glucose readings.
Symbol in status
area only.
N/A
Wait
prompt
The receiver has
detected a potential
problem with the
sensor signal. You
should wait about
30 minutes for more
prompts. Do not
enter any blood
glucose values
during this time.
You will not receive
sensor glucose
readings.
Symbol in status
area only.
N/A
15 minute
calibration
error alert
The sensor cannot
calibrate. Wait 15
minutes then enter 1
more blood glucose
value. Wait 15 more
minutes. If error screen
still appears enter 1 more
blood glucose value.
Wait 15 minutes. If no
sensor glucose readings
appear on the receiver,
the sensor needs to be
replaced.
1 vibrate then
vibrate/beep every
5 minutes until
conrmed.
No