Dexcom G7 User manual

Instructions for Use
User Guide

1 • Welcome 1
Get started 1
New since G6 2
Contact information 3
2 • Safety Information 5
Dexcom G7 CGM System safety statements 5
Share and Follow safety statements 12
Risks and benefits 12
Glossary 16
3 • Display Device Screens 23
Glucose information 23
Sensor reading and trend arrow 26
Navigation 30
See trend graph history 34
Tips from banners, tooltips, and icons 35
4 • Treatment Decisions 37
When to use your BG meter instead of G7 37
When to watch and wait 39
Using the trend arrows 39
Table of Contents
Table of Contents | Dexcom G7 User Guide i

Treat with professional advice 40
Practice making treatment decisions 40
5 • Alerts 45
Low alerts 45
High alert 47
Rising Fast and Falling Fast alerts 47
System alerts 48
Signal Loss alert 48
Brief Sensor Issue alert 49
Technical alerts 49
Responding to app alerts 50
Changing all alerts 51
Silence All (app) 52
Changing one alert 54
Silence All (receiver) 58
Adding a second alert profile in your app 59
Optimizing alerts 60
6 • Set Up Displays and Medical Device 65
App 65
Dexcom receiver 66
7 • App Connections 67
Sensor 67
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Share and Follow 68
Dexcom Follow app 70
Health apps 75
8 • Events and History 77
Using events to manage glucose 77
Tracking events 77
Logging BG meter values or calibrating 79
9 • Reports 81
10 • Next Sensor Session 83
Sensor transition 83
Remove your sensor 85
Remove old sensors from Bluetooth connections in phone (optional) 86
11 • Troubleshooting 89
Accuracy and calibration 90
Adhesive patch 95
Can't hear alerts 97
Common alerts 98
Gap in trend graph 103
Recharge receiver 104
Travel with G7 104
Water and G7 105
Table of Contents | Dexcom G7 User Guide iii

X-ray, CT scan, or radiation therapy 106
A • Dexcom Clarity 109
B • Taking Care of Your G7 111
G7 maintenance 111
C • Professional Use Instructions 113
Introduction 113
Prepare G7 for patient 113
Explain G7 to patient 114
Set up G7 with patient 115
Check patient reports in Clarity 116
End of sensor session 116
Next steps 116
D • Warranty 117
Dexcom receiver limited warranty 117
Dexcom sensor limited warranty 119
E • Terms of Use and Open Source Software Code 121
Terms of use 121
Open source software code 121
F • Technical Information 123
Device performance summary 123
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Product specifications 124
Radio regulations compliance 132
G • Packaging Symbols 133
H • Index 137
Table of Contents | Dexcom G7 User Guide v

1 • Welcome | Dexcom G7 User Guide 1
1 • Welcome
Thanks for choosing the Dexcom G7 Continuous Glucose Monitoring (CGM) System
(G7)! Using this medical device, you'll see your glucose readings on your display
device just by wearing a tiny sensor!
Here are some of the benefits of using G7 to manage your glucose:
lNo more fingersticks: G7 allows you to make treatment decisions without
fingersticks. (If your glucose alerts and readings from the G7 do not match
symptoms or expectations, use a blood glucose meter to make diabetes treatment
decisions.)
lPredict and prevent highs and lows: With G7, you have the information needed
to keep your glucose in range, you can customize your alert schedule, and you get
a 20-minute warning when your glucose is quickly heading towards 3.1mmol/L.
lBring more peace of mind: G7 lets you share glucose data with your support
team to keep them informed about your glucose levels in real time.
lRepeat successes: See the results of your actions in the summary reports and
keep improving.
So let's get started!
Get started
To set up your G7, use the instructions in your Start Here
guide.

This G7 User Guide introduces you to the display device screens, leads you through
making treatment decisions, and shows you how to move to your next sensor session.
Each sensor session lasts up to 10 days, plus a 12-hour grace period at the end.
In addition, this guide shows you where to customize your alert sounds, how to get
your glucose information to your support team, how to make a second alert profile in
your app, and much more.
Images are representational. Your display device screens and components may look
different.
The app runs on both Android and Apple smart devices. For supported smart devices
and operating systems, go to dexcom.com/compatibility.
New since G6
New features include:
lAll new components and app
lNew alert sounds and sound options
lGlucose summary reports on your display device
All new components and app
Sensor and patch
lStreamlined all-in-one sensor with built in disposable transmitter
lShorter warmup — less than 30minutes
lExtra 12-hour grace period at the end of the sensor session gives you flexibility to
change your sensor at your convenience
lSmaller sensor and shorter sensor wire for your comfort
lPatch is smaller — half the size of G6
lOverpatch comes with each sensor and keeps the sensor on longer if needed
Applicator
lSmaller size — less plastic waste
lFast and easy to insert sensor
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1 • Welcome | Dexcom G7 User Guide 3
App
lRedesigned app to make it even easier to manage your glucose
lFaster set up
Receiver (may be optional in some regions)
lNew look and feel
lSmaller size
For more information on setting up G7, go to the Start Here guide. For more
information on the grace period, go to the Next Sensor Session chapter.
New alert sounds and sound options
lTurn off all alert sounds: Change one setting to quickly make all alerts silent (for
up to 6 hours) or vibrate only
lExtra alert profile on app: Schedule it (like G6) or turn it on and off anytime
lMore alert sounds: Pick the sounds that work best for you
For more information about alerts, go to the Alerts chapter.
Glucose summary reports on your display device
lSummary reports: Includes summary reports of your glucose information (over the
last 3, 7, 14, 30, and 90 days). Use them to identify trends and opportunities.
For more information about reports, go to the Reports Overview chapter and the Clarity
appendix.
Contact information
Contact Dexcom Technical Support at dexcom.com or contact your local Dexcom
distributor.
In the app, you can also go to Profile > Contact to get help.

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2 • Safety Information | Dexcom G7 User Guide 5
2 • Safety Information
Dexcom G7 CGM System safety statements
Important user information
Read the indications, warnings, precautions, and instructions for your G7. If you don't
you may have inaccurate sensor readings, missed alerts, and might miss a severe low
or high glucose event.
Getting familiar with G7 could take days, weeks, or even months.
Dexcom doesn't recommend continuous glucose monitoring for people who can't or
won't:
lUse their BG meter to test their blood glucose if their symptoms don’t match their
sensor readings
lKeep in touch with their healthcare provider about diabetes management

Indications for use
The Dexcom G7 Continuous Glucose Monitoring System (Dexcom G7 CGM System or
G7) is a glucose monitoring system indicated for continuously measuring glucose in
the interstitial fluid in persons age 2years and older, including pregnant women. The
Dexcom G7 CGM System is designed to replace fingerstick blood glucose (BG) testing
for treatment decisions.
Interpretation of the Dexcom G7 CGM System results should be based on glucose
trends and several sequential sensor readings over time. The Dexcom G7 CGM
System also aids in the detection of episodes of hyperglycemia and hypoglycemia,
facilitating both acute and long-term therapy adjustments.
The Dexcom G7 CGM System is intended for use by patients at home and in
healthcare facilities.
Contraindications
No MRI/CT/diathermy — MR unsafe: Don't wear any Dexcom G7 CGM
System component during magnetic resonance imaging (MRI) or
high-frequency electrical heat (diathermy) treatment. However, it's safe to
have a CT scan if you keep the sensor out of the scanned area and cover the
sensor with a lead apron during the scan.
MR
The Dexcom G7 CGM System hasn't been tested in those situations when used during
an MRI scan, diathermy, or in the scanned area of a CT scan. The magnetic fields and
heat could damage components of the Dexcom G7 CGM System, which may cause
inaccurate sensor readings or prevent alerts. Without sensor readings or alerts, you
might miss a severe low/high glucose event.
Warnings
Read product instructions before you use your Dexcom G7 CGM System
Don't ignore low/high symptoms: Use your BG meter to make treatment decisions
when your sensor readings don't match your low/high symptoms. If needed, seek
immediate medical attention.
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2 • Safety Information | Dexcom G7 User Guide 7
No number, no arrow, no CGM treatment decision: Use your BG meter to make
treatment decisions when your Dexcom G7 CGM System doesn't show both a number
and trend arrow as well as during the 30-minute sensor warmup period.
Don't use if you are on dialysis or critically ill: The Dexcom G7 CGM System
performance hasn't been evaluated in these populations and sensor readings may be
inaccurate.
Sensor wire breaks off: Don't ignore broken or detached sensor wires. If this
happens, please contact Dexcom Technical Support at dexcom.com or contact your
local Dexcom distributor.
If a sensor wire breaks off or detaches under your skin and you can't see it, don't try to
remove it. Contact your healthcare provider if you have symptoms of infection or
inflammation — redness, swelling, or pain — at the insertion site.
Where to insert — arm, abdomen, or buttocks: All patients can use their abdomen
and back of upper arm. Patients 2 to 6 years old can also choose their upper buttocks.
The sensor isn't tested or approved for other sites. Discuss the best site for you with
your healthcare provider.
Where to store: You can store your sensors at room temperature or in your
refrigerator, between 2°C and 30°C, but not in the freezer.
Inspect: Don't use any damaged or cracked Dexcom G7 CGM System component
because it may not work correctly and could cause injuries from electrical shocks.
Use as directed: The Dexcom G7 CGM System is small and may pose a choking
hazard if swallowed.
Check settings: Make sure your smart device volume is turned up, not muted, and
the speaker works. When you have headphones connected, alerts will only sound
through the headphones, not on your smart device speaker.
Your glucose alerts sound and display information by default even when your volume
is low or muted.

Quiet Mode (Vibrate): When this setting is enabled all your Dexcom G7 CGM System
alerts will vibrate. Your Urgent Low Glucose and technical alerts will still escalate to
sound if not acknowledged.
Quiet Mode (Silence All): When this setting is enabled, all your Dexcom G7 CGM
System alerts will be silent. You won't receive sound or vibration for any alerts. You
will still receive visual alerts on your display device. (Exceptions: App Stopped alerts
will still sound.) Check your display device frequently to avoid missing a low/high
event.
Bluetooth: Make sure your Bluetooth is on. If not, you won't get readings or alerts.
Notifications:
lMake sure your smart device settings follow Dexcom’s recommended settings.
Certain phone settings such as Android's Digital Wellbeing and Apple’s Screen
Time may prevent notifications if enabled.
lAllow Dexcom G7 CGM System app notifications to show on your Lock screen.
This will ensure you receive Dexcom notifications and allow you to see
notifications without unlocking your phone.
lAndroid users must allow Location Permission, Do Not Disturb Access, and
Notifications to use the app.
lApple users must allow Critical Alerts to use the app.
Battery: Keep the battery charged.
Compatibility: Before upgrading your smart device or its operating system, check
dexcom.com/compatibility. Automatic updates of the app or your device operating
system can change settings or shut down the app. Always update manually and verify
correct device settings afterward.
While connected to the internet, the app checks periodically and will display a
message if it’s not compatible (or no longer compatible) with your phone or your
phone’s operating system (OS). The message may include a timeframe for updates.
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2 • Safety Information | Dexcom G7 User Guide 9
Time: Let the date and time on your smart device automatically update when you
travel across time zones or switch between standard and daylight saving times. Don’t
manually change your smart device time because you may not get readings or alerts
and it may make the time on the trend screen wrong.
Use electrical equipment as directed:
Use of accessories, cables, adapters, and chargers other than those
specified or provided by the manufacturer of this equipment could result in
increased electromagnetic emissions or decreased electromagnetic
immunity of this equipment and result in improper operation.
Portable radio frequency communications equipment (including peripherals such as
antenna cables and external antennas) should be used no closer than 30 centimeters
to any part of the Dexcom G7 CGM System including cables specified by the
manufacturer. Otherwise, degradation of the performance of this equipment could
result.
Use of this equipment adjacent to, or stacked with, other equipment should be
avoided because it could result in improper operation.
Not using supplied USB charger and cable may cause the receiver battery to not
charge. Don't use if the supplied USB charger or cable is damaged. Store supplied
USB charger and cable safely. Misuse of the USB cable can be a strangulation risk.
Do not modify
No modifications to the Dexcom G7 CGM System are allowed.
Precautions
Check accessories: When using accessories such as headphones, Bluetooth
speakers, or smartwatches, you may get your alerts on only one, not all. After
connecting any accessories, make sure that your smart device settings allow you to
continue receiving alerts.

Clean and dry skin: If your insertion site and hands aren't clean and dry, you run the
risk of infection and the sensor not sticking well. Clean your insertion site with alcohol
wipes to prevent infections. Before insertion and during your sensor session, don't
apply insect repellent, sunscreen, perfume, or lotion on your insertion site or sensor.
This may cause the sensor to not stick well or could damage your Dexcom G7 CGM
System.
Hydroxyurea: If you are taking hydroxyurea, your sensor readings may be falsely
elevated and result in missed hypoglycemia alerts or errors in diabetes management
decisions. The level of inaccuracy depends on the amount of hydroxyurea in your
body. Use your meter if you have taken hydroxyurea.
Be accurate, be quick: If you calibrate your Dexcom G7 CGM System using your BG
meter, enter the BG value on your meter within five minutes of measuring your BG.
Use fingertips: Use a BG sample from your fingertips when calibrating as blood
glucose from other places may be less accurate and not as timely. Calibration is not
required but you can do optional BG calibration to align with your meter.
Don't start past the Use By Date: Don’t start a sensor past its Use By Date
(YYYY-MM-DD) because it may give incorrect results. You can start a new sensor on or
before its Use By Date. This gives you full wear.
Check package: Don't use your Dexcom G7 CGM System if the applicator and/or
sterile cap has been damaged or opened, because it might cause an infection. Don't
remove cap until ready for insertion.
Where to insert — things to check: The Dexcom G7 CGM System insertion safety
guard is enabled until you press the Dexcom G7 CGM System applicator down against
your skin. Only do this when ready to insert.
Change your insertion site with each sensor to allow the skin to heal.
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2 • Safety Information | Dexcom G7 User Guide 11
Avoid areas:
lWith loose skin or without enough fat to avoid muscles and bones.
lThat get bumped, pushed, or laid on when sleeping.
lWithin 8 centimeters of infusion or injection site.
lNear waistband or with irritations, scarring, tattoos, or lots of hair. If needed, trim
site with electric clippers.
Use correct components: Dexcom G7 CGM System components aren't compatible
with any previous Dexcom products. Don't mix with different generations.
Going through security check point: You can wear the Dexcom G7 CGM System
sensor for the walk-through metal detector and Advanced Imaging Technology (AIT)
body scanner. If you do, use your BG meter for treatment decisions until you leave the
security area. This is because the Dexcom G7 CGM System hasn’t been tested with
every x-ray and security scanner and you may not be able to bring a display device.
You can also ask for hand-wanding or full-body pat-down and visual inspection
instead of going through any walk through body scanners or putting any part of the
Dexcom G7 CGM System in the baggage scanning machine.
Keep your sensor close to display device: Keep your sensor and display device
within 6meters with no obstacles between them. Otherwise, they might not be able to
communicate.
Get alerts on display device you use: To get your alerts, set them on the display
device you use. Your receiver won't get the alerts you set in your app. Likewise, your
app won't get the alerts you set on your receiver.
Display device is on: Make sure your display device is turned on or you won't receive
sensor readings or alerts.
Test speaker and vibrations: Test your receiver speaker and vibrations regularly.
To make sure the speaker and vibrations work, plug in the receiver to charge. The
Speaker Test screen appears for a few seconds. Follow the directions on the screen to
test the speaker and vibrations. If it doesn't beep and vibrate, contact Dexcom

Technical Support at dexcom.com or contact your local Dexcom distributor and use
your app or BG meter until the receiver is fixed.
Keep receiver clean and dry: Don't submerge your receiver in water and don't get
dirt or water in the USB port. That could damage it.
Share and Follow safety statements
Important user information
Dexcom Share (Share) lets you send your sensor information from your app to your
Followers’ smart devices (Dexcom Follow app). Read the important user information
and warnings below to find out how you can safely use this app feature.
Keep followers informed: Use Share to send your sensor information from your
smart device to your Followers’ smart devices.
Use as secondary notice: Your Followers’ information is always older than yours.
Use your current information to manage your diabetes, not your Followers’
information. The information they get isn't meant to be used for treatment decisions,
analysis, or teaching. Followers can't change your information.
Warning
Use your Dexcom G7 CGM System to make treatment decisions: Don't use
Followers’ information for treatment decisions, like treating for a low or dosing for a
high. Follow your Dexcom G7 CGM System instructions to make treatment decisions.
Follow healthcare provider advice: Share isn't intended to replace self-monitoring
practices as advised by your healthcare provider.
Risks and benefits
The risks and benefits of your Dexcom G7 CGM System are discussed below. Avoid
any risks and enjoy Dexcom G7 CGM System's benefits by following the product
instructions.
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