Receiver Display
You will see this screen when you turn on your receiver during a sensor session
NOTE: Sensor glucose readings above your High Alert setting are yellow. Sensor glucose
readings below your Low Alert setting are red. Sensor glucose readings in target are white.
Step 5
Starting Your Sensor Session
Once you have inserted the sensor and attached the transmitter, you
need to start the sensor session on your receiver.
a. From any trend graph, press the
SELECT
button
to get to the Main Menu.
b. Press the
DOWN
button to highlight Start Sensor.
Press the
SELECT
button. Start Sensor Screen
will let you know your sensor 2-hour startup
period has begun.
c. Check your receiver 10 minutes after starting
your sensor session to make sure your
receiver and transmitter are communicating.
The antenna symbol (
) should be in the
upper left corner of the trend graph. If the Out of Range symbol
(
) shows in the upper right corner of the trend graph instead,
see the User’s Guide for more information.
d. A 2-hour countdown symbol will show on the receiver trend
screen and will fill in during the 2-hour startup period.
NOTE: After starting a new sensor session, you will not receive
sensor glucose readings or alerts until your 2-hour startup period
has ended and you have completed your initial calibrations.
[0-24
minutes]
[24-48
minutes]
[72-96
minutes]
Ready for
calibration
[48-72
minutes]
Start
Step 6
Calibrating
You need to use your blood glucose meter to calibrate your Dexcom G4
PLATINUM System. At the end of the 2-hour startup period, you must
enter two calibrations before any sensor glucose readings will show.
Calibration blood glucose values need to be entered into the receiver
within 5 minutes of testing with your blood glucose meter.
Startup Calibration:
a. After the 2-hour startup period, a double blood
drop prompt will show on the receiver screen.
Press the
SELECT
button to clear this alert.
b. Wash and dry your hands.
c. Take a fingerstick blood glucose
measurement using your blood glucose
meter.
d. From any trend graph, press the
SELECT
button to get to the Main
Menu.
e.
Press the
DOWN
button to highlight Enter BG. Press the
SELECT
button.
f. For the startup calibration, the default blood glucose value on the
receiver is 120 mg/dL. Press the
UP
and
DOWN
buttons to enter
the exact blood glucose value from your blood glucose meter.
Press the
SELECT
button.
g. Press the
SELECT
button again to accept the calibration.
h. Repeat steps c-g to enter a second blood glucose value.
Calibration Update:
A single blood drop prompt will appear on the receiver
screen to let you know a calibration update is needed.
To confirm this prompt, press
SELECT
.
After your startup calibration, calibration updates must
be entered once every 12 hours at a minimum.
NOTE: Calibrating less than the recommended amount may
result in inaccurate sensor glucose readings. You can enter more
calibrations each day if you want. See the Dexcom G4 PLATINUM
System User’s Guide for more details on calibrating.
Step 7
Ending Your Sensor Session
The sensor automatically shuts off after 7 days. The
receiver will alert you at 6 hours, 2 hours and 30
minutes before the sensor session ends. The Replace
Sensor Now screen will show when it is time to remove
your sensor.
Removing Your Sensor Pod and Transmitter:
a. Peel the sensor pod off your body like a Band-Aid. Do not remove
the transmitter from the sensor pod until the entire sensor has
been removed from your body.
b. Place the sensor pod/transmitter on a hard
surface. There are two ways you can remove
the transmitter:
• Use your fingers to spread the back tabs of
the sensor pod. The transmitter will pop out.
OR
• Use the safety lock (from the sensor applicator).
Insert the jagged edges of the safety lock so
they “hug” the wide end of the transmitter in the
sensor pod. Press the safety lock down until
you cannot press anymore, and then pull up.
The transmitter will pop out.
c. Keep the transmitter. Dispose of the sensor
following your local guidelines for disposal of
blood-contacting components.
Safety
Lock
Sensor Pod with Safety
Lock snapped in
Sensor Troubleshooting
Refer to your User’s Guide or contact Dexcom Technical Support
at
1.877.339.2664 or 1.858.200.0200
for any unresolved
questions/troubleshooting issues. The Dexcom G4 PLATINUM System
online tutorial is also available at
www.dexcom.com
.
Blood Drop
in Status Area
15 Minute
Calibration Error
1 Hour Calibration
Error
Unknown Sensor
Glucose Readings
in Status Area
Sensor Failed
Calibration needed.
• Enter a calibration as described in Step 6 on front page
of this Quick Start Guide.
Sensor is not calibrating correctly.
• Press the
SELECT
button.
will show in status bar
• Wait 15 minutes, then enter 1 calibration
• If error continues, enter 1 more calibration, and wait 15 minutes
• If no sensor glucose readings show, contact Dexcom
Technical Support
Sensor is not calibrating correctly.
• Press the
SELECT
button.
will show in status bar
• Wait about 1 hour, then enter 1 calibration
• Wait 15 minutes. If no sensor glucose readings show,
contact Dexcom Technical Support
Wait.
usually clears up by itself within minutes or
hours. If this continues after 3 hours, contact Dexcom
Technical Support.
• Do not calibrate
• Make sure the sensor pod is sticking well to your body
and nothing is rubbing against it
• Check that the transmitter is snapped in on both sides
Sensor shuts off before end of 7-day session.
• Press any button to clear the alert/screen
• Contact Dexcom Technical Support
• Remove failed sensor and insert a new sensor
Trend Arrow
Current Time
Most recent 5-minute glucose reading
Glucose
Target
Range
Low Glucose
Alert Setting
Plot of most
recent glucose
reading
Antenna
Battery
Status Area
High Glucose
Alert Setting
Glucose
Values
Trend Graph Hours
Sensor Troubleshooting (continued)
Calibration “Do’s”
• Use the same blood glucose meter for all calibrations during a
sensor session.
• Make sure your blood glucose test strips are coded correctly
and not expired.
• Wash and dry your hands before testing your blood glucose.
• Use only
fingerstick
blood glucose values for calibration.
Calibration “Don’ts”
• Don’t calibrate when you see
or in the status bar.
• Don’t calibrate if your blood glucose value is higher than 400 mg/dL
or lower than 40 mg/dL.
• Don’t calibrate when acetaminophen (such as Tylenol) is active in
your body.
Low Glucose Alarm
The Dexcom G4 PLATINUM System has an automatic Low Glucose
alarm set at 55 mg/dL. You cannot change or turn off this alarm or its
re-alert settings. If you get this alarm:
• Press
SELECT
to clear.
• You will get this alarm again in 30 minutes
if your sensor glucose reading
is still at or below 55 mg/dL.
Advanced Features of the Dexcom G4
PLATINUM CGM System
The Dexcom G4 PLATINUM System has advanced features and alerts to
take your glucose sensing to the next level. Except for the Trend Arrows
and Event Markers, these advanced alerts are turned ‘off’ when you first
receive your Dexcom G4 PLATINUM System but can be turned on and
customized.
Advanced Feature #1: Trend Arrows
A trend arrow may show next to the sensor
glucose reading on your receiver trend screens.
Trend arrows show you the direction and speed
your glucose is changing. See the Dexcom G4
PLATINUM User’s Guide for more information.
Advanced Feature #2: Event Markers
Event markers let you record information that may help you and your
healthcare team better understand your glucose patterns and trends. Events
include carbohydrates (grams), insulin (units), exercise (intensity and
duration), and health (illness, stress, high/low symptoms, menstrual cycle,
alcohol). Event markers do not show on the receiver but can be downloaded
to the Dexcom Studio software. See the Dexcom G4 PLATINUM User’s Guide
for more information.
Advanced Feature #3: Advanced Alerts
To turn on any of the Advanced alerts, follow the steps
below:
a. From any trend graph, press the
SELECT
button to
get to the Main Menu.
b. Press the
DOWN
button to highlight Alerts. Press
the
SELECT
button.
c. Press the
DOWN
button to highlight Advanced. Press
the
SELECT
button.
d. Press the
UP
and
DOWN
buttons to highlight
the advanced feature you want to set. Press the
SELECT
button.
a. High/Low Snooze Alerts
The High/Low Snooze alerts can be set to re-alert you
when your sensor glucose reading stays outside high or low alert level.
Snooze alerts can be set to re-alert every 15 minutes up to 5 hours. See the
Dexcom G4 PLATINUM User’s Guide for more information.
b. Rise/Fall Glucose Rate Alerts
The Rate Alerts can be set to alert you when your sensor glucose readings
are rising (Rise Alert) or falling (Fall Alert) at 2 mg/dL or more per minute or 3
mg/dL or more per minute. See the Dexcom G4 PLATINUM User’s Guide for
more information.
c. Out of Range Alert
The Out of Range alert can be set to alert you when the transmitter and
receiver are not communicating for an amount of time between 20-200
minutes. The Out of Range Symbol ( ) will be in the upper right corner
of the trend graph, and the Out of Range alert screen will show. See the
Dexcom G4 PLATINUM User’s Guide for more information.
Frequently Asked Questions
Should I make treatment decisions based on the results from my Dexcom G4
PLATINUM CGM system?
No. Treatment or insulin dosing decisions should be based on the blood glucose value from
your blood glucose meter. The direction, rate of glucose change, and trend graph on your
Dexcom G4 PLATINUM System provide additional information to help with these decisions.
Is it okay if my Dexcom G4 PLATINUM CGM sensor glucose readings and
fingerstick blood glucose values don’t match exactly?
Yes. Your sensor glucose readings are meant to be used for trending only. Your blood glucose
meter and sensor measure your glucose from two different types of body fluids: blood and
interstitial fluid. Therefore, the values from your blood glucose meter and sensor may not
match exactly.
Dexcom, Dexcom G4, Dexcom G4 PLATINUM, Dexcom Studio and The Glucose Sensor Company are either registered
trademarks or trademarks of Dexcom, Inc. in the United States and/or other countries. All other product or company names that
may be mentioned in this publication are tradenames, trademarks or registered trademarks of their respective owners.
Dexcom, Inc.
I
6340 Sequence Drive
I
San Diego, CA 92121
Technical Support: 1.877.339.2664/1.858.200.0200
I
www.dexcom.com
© 2012 Dexcom, Inc. All rights reserved.
Frequently Asked Questions continued
Why can’t I take any acetaminophen containing medication while I am using
the Dexcom G4 PLATINUM System?
Acetaminophen is a contraindication of the Dexcom G4 PLATINUM System and should
not be taken while your sensor is inserted. The Dexcom G4 PLATINUM System may read
inaccurately high when you take acetaminophen-containing drugs. The level and duration
of inaccuracy may be different for each person. To understand how long acetaminophen-
containing medicines may affect your body, consult your health care
provider.
How do I change my high/low glucose alert levels?
Follow the below steps:
a. From any trend graph, press the
SELECT
button
to get to the Main Menu.
b.
Press the
DOWN
button to highlight Alerts. Press
the
SELECT
button.
c.
Press the
SELECT
button to select “High Alert.”
Or press the
DOWN
button, and then the
SELECT
button to select “Low Alert.”
d. Use the
UP
and
DOWN
buttons to change Alert
Level.
e.
Press the
SELECT
button to confirm changes.
How long is the warranty on the Dexcom G4 PLATINUM
Transmitter?
The warranty for the transmitter is 6 months.
How long is the warranty for the Dexcom G4 PLATINUM
Receiver?
The warranty for the receiver is 12 months.
WARNING:
Review all contraindications, warnings, precautions and detailed
procedures in the user’s guide prior to using your Dexcom G4 PLATINUM
Continuous Glucose Monitoring System.
Start Sensor
“thinking” screen
Startup calibration prompt
Calibration prompt
Replace Sensor Now screen
Low Glucose Alarm
Rate of Change Arrow appears
in upper right of trend graph
Main Menu
Alerts highlighted
Alerts Menu
Advanced highlighted
Advanced Menu, High
Snooze highlighted
High Alert Setting Screen,
15 minutes selected
Advanced Menu,
Rise Rate highlighted
Rise Rate, On/Off
highlighted
Rise Rate screen,
On highlighted
Advanced Menu, Out of Range highlighted
Out of Range Alert screen
Main Menu,
Alerts highlighted
Alerts screen, High
Alert highlighted
High Alert screen,
Level highlighted
Countdown symbol fills in during sensor startup
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