User`s guide
Dexcom G4 User’s Guide | 67
6.1 SETTING YOUR ALERTS
6.1.1 DEFAULT ALERT/ALARM SETTINGS
When you receive your Dexcom G4 CGM System the following alerts and
alarms are preset on your receiver (see table below).
What will I see
on the receiver
screen?
What does this
mean?
What
is the
default
setting?
How will the
receiver notify
me?
Will the
receiver
re-notify
me?
High Glucose
Alert
Your most recent
sensor glucose
reading is at or
above the high
alert setting.
On at
11.1 mmol/L
Vibrates twice
then vibrates/
beeps twice every
5 minutes until
conrmed or your
glucose value
drops below the
alert level.
No, unless you
have turned
on the high
alert snooze
feature.
Low Glucose
Alert
Your most recent
sensor glucose
reading is at or
below the low alert
setting.
On at
4.4 mmol/L
Vibrates three
times then
vibrates/beeps
three times every
5 minutes until
conrmed or your
glucose value
goes above the
alert level.
No, unless you
have turned
on the low
alert snooze
feature.
Fixed Low Alarm
Your most recent
sensor glucose
reading is at or
below 3.1 mmol/L.
On Vibrates four
times then
vibrates/beeps
four times every
ve minutes until
conrmed or your
glucose value
goes above 3.1
mmol/L.
Yes, every
30 minutes
after each
conrmation
until your
blood glucose
value comes
back into
range.
This chapter will teach you about your Dexcom G4 CGM
System’s many alerts and alarms and how to customize them.