Dexcom G5 Mobile User manual

User Guide
CONTINUOUS GLUCOSE
MONITORING SYSTEM

IMPORTANT CONTACTS AND NUMBERS
Emergency Phone Number: ______________________________________________
Your Healthcare Professional: _____________________________________________
Your Receiver Serial Number: _____________________________________________
Your Transmitter Serial Number: ___________________________________________
___________________________________________________________________
Dexcom®Technical Support/Patient Care Team: _______________________________
Dexcom Website:______________________________________________________
Nearest Hospital: ______________________________________________________
___________________________________________________________________
1.877.339.2664
dexcom.com

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Dexcom G5 Mobile System User Guide
Table of Contents
Part 1: Getting Started
Glossary 5
Chapter 1 - Beginning Your Dexcom G5™
Mobile Continuous Glucose Monitoring
(CGM) System Journey 9
1.1 Introduction ............................... 9
1.2 Self-Paced Resources ...................10
1.3 Your Dexcom Account....................12
Chapter 2 - Indications for Use and Safety
Statement 15
2.1 Introduction ..............................15
2.2 Important User Information ..............15
2.3 Safety Statements .......................16
2.4 Overview of Safety Statements..........17
2.5 General CGM System Warnings .........20
2.6 Calibration Warning and Precautions....20
2.7 System/Hardware/Software Warnings and
Precautions...............................22
Chapter 3 - Risks and Benefits 29
3.1 Risks ......................................29
3.2 Benefits...................................30
Part 2: Let’s G5™! The Basics
Chapter 4 - What Is the Dexcom G5 Mobile
CGM System? 35
4.1 System Description ......................35
4.2 Safety Statement.........................35
4.3 The Dexcom G5 Mobile CGM System ...36
4.4 What’s New to the Dexcom G5 Mobile
CGM System? ............................38
4.5 System Information ......................38
4.6 System Components .....................39
4.7 Smart Device Overview ..................47
Chapter 5 - Set up Your Display Devices 49
5.1 Introduction ..............................49
5.2 Safety Statement.........................49
5.3 Why Different Monitoring Methods?.....50
5.4 Dexcom G5 Mobile App ..................50
5.5 Dexcom G5 Mobile Receiver .............63
Chapter 6 - Starting a Sensor Session:
Inserting Sensor, Transmitter, and Starting
Your Session 69
6.1 Overview .................................69
6.2 Safety Statements .......................70
6.3 Prepping for Sensor Insertion............72
6.4 Choosing Your Insertion Site.............75
6.5 Inserting Your Sensor ....................76
6.6 Attaching Your Transmitter ..............80
6.7 Loose Sensor Pod ........................81
6.8 Starting Your Sensor Session............82
6.9 Receiver
Bluetooth
®
Tips ................86
6.10 Sensor Session Warmup.................90
Chapter 7 - Calibration 91
7.1 Introduction ..............................91
7.2 Calibration Overview .....................92
7.3 Safety Statements .......................93
7.4 When to Calibrate ........................95
7.5 Calibration Prompts ......................96
7.6 Preparing for Calibration............... 100
7.7 Ready? Set? Calibrate!................. 100
7.8 Calibration Errors....................... 106
Chapter 8 - Ending Your Sensor Session and
Transmitter Session 109
8.1 Introduction ............................ 109
8.2 Safety Statements ..................... 110
8.3 Ending Your Sensor Session ........... 110
8.4 Remove Sensor Pod and Transmitter.. 124
8.5 End of Transmitter Battery............. 126
Part 3: Next Steps - Getting the Most
out of Your Dexcom®CGM
Chapter 9 - Home Screen, Rate of Change
Arrows, and Errors 133
Table of Contents

Dexcom G5 Mobile System User Guide
2Table of Contents
9.1 Introduction to Home Screens ......... 133
9.2 Safety Statements ..................... 133
9.3 Overview of Home Screen ............. 134
9.4 Rate of Change Arrows ................ 145
9.5 Error Messages ........................ 146
Chapter 10 - Daily Events Affect Your
Glucose Trends and Patterns 153
10.1 Introduction ............................ 153
10.2 What Is an Event? ...................... 153
10.3 Entering Events......................... 162
10.4 Viewing Events ......................... 170
Chapter 11 - Sensor Glucose Alarm and
Alerts 173
11.1 Introduction ............................ 173
11.2 Safety Statements ..................... 174
11.3 Alarm and Alerts ....................... 175
11.4 Alarm and Alerts Screens.............. 177
11.5 App: Alarm/Alert Recommended
Settings................................. 183
11.6 Receiver: Default Beeps and
Vibrations............................... 184
11.7 Clearing Alarm/Alerts .................. 188
Chapter 12 - On the Go With G5: Customizing
Your Alarm and Alerts 191
12.1 Introduction ............................ 191
12.2 Safety Statement....................... 192
12.3 Changing App Alarm and Alerts ....... 192
12.4 Changing Receiver Alarm and Alerts .. 204
Part 4: Everything Else G5
Chapter 13 - Warranty: The Fine Print 215
13.1 Introduction ............................ 215
13.2 Receiver Warranty Information ........ 215
13.3 Transmitter Warranty Information ..... 217
13.4 Dexcom’s Obligations Under the Limited
Warranty................................ 219
Chapter 14 - How to Take Care of Your
Dexcom G5 Mobile CGM System 221
14.1 Introduction ............................ 221
14.2 Basic Maintenance..................... 222
14.3 Storage ................................. 226
14.4 Checking App and Receiver
Information ............................. 227
14.5 System Disposal ....................... 228
Chapter 15 - On the Go With Dexcom G5
Mobile CGM System: Getting Through
Security 229
15.1 Introduction ............................ 229
15.2 Going Through Security................ 229
Chapter 16 - Need Help? You’re Not
Alone! 233
16.1 Dexcom Technical Support ............ 233
16.2 Patient Care Team...................... 234
16.3 Sales Support Team.................... 235
16.4 Corporate............................... 235
Chapter 17 - Technical Information 237
17.1 Device Performance Characteristics .. 237
17.2 Product Specifications ................. 275
17.3 FCC Requirements ..................... 283
Chapter 18 - Troubleshooting 285
18.1 Introduction ............................ 285
18.2 Safety Statements ..................... 285
18.3 Troubleshooting ........................ 287
Chapter 19 - Symbols on Package Labels 299
Part 5: Sharing Is Caring
Chapter 20 - Dexcom Share™303
20.1 Learning About Dexcom Share ........ 303
20.2 Dexcom Share Overview............... 307
20.3 Risks and Benefits ..................... 309
20.4 Safety Statement....................... 310
20.5 Setting up Dexcom Share.............. 313
20.6 Using Dexcom Share ................... 323
20.7 Dexcom Follow™App .................. 328
20.8 Troubleshooting ........................ 330
Index 333

• Glossary
• Getting Started
• Indications for Use and Safety Statement
• Risks and Benefits
GETTING STARTED

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Glossary 5
Dexcom G5 Mobile System User Guide
A1C Blood test used to diagnose type 1 or 2 diabetes and to gauge
how well you’re managing your diabetes. The A1C test result
reflects your average blood sugar level for the past two to
three months.
Alternative Site
Testing
Using a blood sample from non-fingertip (alternate) sites such as
the palm, forearm or upper arm for meter readings.
Do not use alternative site testing to calibrate the Dexcom G5™
Mobile CGM System, only use fingerstick measurement.
App A self-contained program or piece of software designed to fulfill a
particular purpose; an application, especially as downloaded by a
user to a smart or mobile device.
The Dexcom G5 Mobile App was developed as a display for
continuous glucose monitoring.
Blood Glucose (BG)
Value
BG is an abbreviation of blood glucose. Blood glucose value is the
amount of glucose in the blood measured by a BG meter.
Blood Glucose
Meter/Meter/BG
Meter
A blood glucose meter is a medical device used to measure how
much glucose is in the blood.
Calibration Calibration is a comparison or measurement between your
meter’s fingerstick BG values, and the sensor’s interstitial fluid
glucose readings. Although blood and interstitial fluids are similar,
glucose concentration is higher in your blood. Calibration allows
alignment between your sensor and meter readings.
When you calibrate, you take a fingerstick measurement from
your meter then enter the value into your receiver or smart device.
The system uses that value to verify the sensor glucose reading is
on track.
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Glossary

Glossary
Dexcom G5 Mobile System User Guide
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(Continued from previous page)
Continuous Glucose
Monitoring (CGM)
Continuous glucose monitoring (CGM) systems use a sensor
inserted under the skin to check glucose levels in interstitial fluid.
A transmitter sends sensor glucose readings to a display device.
Users must confirm glucose levels with a BG meter before making
a change in treatment.
Contraindication A safety statement outlining specific situations where the Dexcom
G5 Mobile should not be used because it may be harmful to you.
The risk of use clearly outweighs any possible benefit.
Hyperglycemia High blood glucose. Same as “high” or high blood sugar.
Hyperglycemia is a characterized by an excess of glucose in
the bloodstream.
It’s important to treat hyperglycemia. If left untreated,
hyperglycemia can lead to serious complications.
The default high alert in the Dexcom G5 Mobile CGM System
is set to 200 mg/dL. Consult your healthcare professional to
determine the appropriate hyperglycemic setting for you.
Hypoglycemia Low blood glucose. Same as “low” or low blood sugar.
Hypoglycemia is characterized by a low level of glucose in
the bloodstream.
It’s important to treat hypoglycemia. If left untreated,
hypoglycemia can lead to serious complications.
The default low alert in the Dexcom G5 Mobile CGM System is set
to 80 mg/dL. Consult your healthcare professional to determine
the appropriate hypoglycemic setting for you.
Indications A condition making a particular treatment or procedure advisable.
How, for what purposes, and under what circumstances you
should use the Dexcom G5 Mobile CGM System. Indications let
you know who should use the Dexcom G5 Mobile CGM System
and when.
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Glossary 7
Dexcom G5 Mobile System User Guide
(Continued from previous page)
IP The International Electrotechnical Commission (IEC) is a nonprofit,
non-governmental, international organization created to produce
safety standards for electronics. One of the safety standards it
designed is the Ingress Protection (IP) Marking which classifies
and rates how protected an electronic device is against dust,
water, accidental contact, etc.
IP ratings are numerical, with the number based on the conditions
the electronic device comes across.
An IP22 rating lets you know your electronic device won’t allow
you to stick your fingers in it and won’t get damaged or be unsafe
during specific testing with water dripping down.
Jailbroken The removal of limitations and security measures set by the
manufacturer on a smart device. The removal poses a security
risk and data may become vulnerable.
Do not use, install or run the Dexcom G5 Mobile App on a
jailbroken smart device. The app may not work correctly on a
jailbroken smart device.
Landscape If your smart device is oriented sideways.
mg/dL Milligrams per deciliter. The standard unit of measure for glucose
readings in the United States.
Portrait If your smart device is oriented vertically.
Precaution A safety statement regarding any special care to be exercised by
you or your healthcare professional for the safe and effective use
of the Dexcom G5 Mobile CGM System.
RF Radio-frequency transmission used to send glucose information
from the transmitter to the receiver or smart device.
Safety Statement A statement of the intended uses of Dexcom G5 Mobile
CGM System and relevant warnings, precautions,
and contraindications.
(Continued on next page)

Glossary
Dexcom G5 Mobile System User Guide
8
(Continued from previous page)
Sensor Session The seven day monitoring period after inserting a new sensor.
During this time frame, your glucose is being monitored and
reported every five minutes, with data being sent to your
display device(s).
Smart/Mobile
Device
A smart/mobile device is an electronic device that is
cordless (unless charging), mobile (easily transportable),
connected (via Wi-Fi, 3G, 4G, etc.) that can operate to some
extent autonomously.
Examples of smart/mobile devices are smartphones, tablets,
or phablets.
Warning A safety statement letting you know the following feature
has important hazard information. Describes serious and life
threatening circumstances of using the Dexcom G5 Mobile CGM
System, their consequences, and how to avoid the hazard.

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Dexcom G5 Mobile System User Guide
Beginning Your Dexcom G5 Mobile Continuous Glucose Monitoring (CGM) System Journey
1.1 Introduction
Welcome to the Dexcom G5 Mobile family!
We are excited you chose us to partner with you in your journey to manage your diabetes. As
a continuous glucose monitoring (CGM) device, the Dexcom G5 Mobile CGM System allows
you to break free from constant fingersticks. But how do you use the Dexcom G5 Mobile
CGM System? What are its features? Do you need to avoid anything?
Where do you even begin?
This chapter is the first step to answering these and many other questions.
After this chapter, you will be able to:
• Describe different training resources
• Locate tutorials about using the Dexcom G5 Mobile CGM System in your diabetes
management
• Find Dexcom G5 Mobile System’s step-by-step instructions
• Recall how to use the User Guide
• Explain why you need a Dexcom®account
We have numerous resources available to help you to get the most out of your Dexcom
G5 Mobile CGM System. Between our self-paced training resources and our friendly and
knowledgeable Dexcom customer support teams, help is always available.
First Things First - Learning How to Learn
Knowing about the Dexcom G5 Mobile CGM System is your first step in creating a successful
CGM experience. Before using it, learn about it.
You have numerous self-paced resources, helping you get to know the Dexcom G5 Mobile
CGM System:
Chapter 1
Getting Started:
Beginning Your Dexcom G5 Mobile Continuous
Glucose Monitoring (CGM) System Journey

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Dexcom G5 Mobile System User’s Guide
Beginning Your Dexcom G5 Mobile Continuous Glucose Monitoring (CGM) System Journey
1. Tutorials
2. Quick Start Guide
3. User Guide
No matter which resource you select, make sure you review them prior to using your new
CGM system.
1.2 Self-Paced Resources
Tutorials
Along with step-by-step instructions, our tutorials illustrate how real-time CGM can assist in
your daily diabetes management. The following is a list of tutorials and how to access them.
Online Tutorials
First Steps With Your Dexcom CGM
Designed for those who have never used a Dexcom CGM. This tutorial covers what to expect
in your first week and includes links to step-by-step videos on how to insert your sensor,
calibrations, ending a sensor session, etc.
Next Steps With Your Dexcom CGM
Just finished First Steps or already familiar with how a CGM can benefit you? This
tutorial covers looking at trends and introduces some advanced features including our
reporting tools.
Accessing Online Tutorials:
From dexcom.com homepage, click Support , click Training .
Once you have viewed the online tutorials you should be pretty comfortable with what CGMs
do and how the Dexcom G5 Mobile CGM System can help you.
Offline Tutorials
You don’t need to be tied to the Internet to view our instructional tutorials, they’re also
available offline.
Accessing Offline Tutorials:
• USB Card
○In the receiver package

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Dexcom G5 Mobile System User Guide
Beginning Your Dexcom G5 Mobile Continuous Glucose Monitoring (CGM) System Journey
Written Mobile Resources
Quick Start Guide (QSG)
The Dexcom G5 Mobile Quick Start Guide compliments the tutorials by proving the same
step-by-step instructions in a booklet form or within the app.
One of the great things about the QSG is you can use it in conjunction with the videos, taking
notes as you go!
Accessing the QSG:
• Receiver package
○Booklet
Both the tutorial and the QSG give you brief look at the Dexcom G5 Mobile CGM System. But
what if you want more detailed information?
User Guide
Your Dexcom G5 Mobile CGM System reference book!
This user guide gives you the most extensive overview of the system detailing features,
important safety information and so much more.
To download an ebook of the user guide or request a printed user guide, visit
dexcom.com/guides.
The Dexcom G5 Mobile User Guide is grouped into six separate parts:
Part 1: Getting Started
1. Glossary
2. Getting Started
a. Learning how to learn about the Dexcom G5 Mobile CGM System
b. Registering at dexcom.com
3. Indications for Use and Safety Statement
4. Risks and Benefits
Part 2: Let’s G5! The Basics
1. Introduction to the Dexcom G5 Mobile CGM System
2. Choose and Set up Your Display Device(s)
3. Initiating a Sensor Session: Inserting the Sensor & Transmitter
4. Calibration
5. End a Sensor Session

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Dexcom G5 Mobile System User’s Guide
Beginning Your Dexcom G5 Mobile Continuous Glucose Monitoring (CGM) System Journey
Part 3: Next Steps - Getting the Most out of Your Dexcom G5 Mobile CGM System
Once you are up and running, how you can maximize the Dexcom G5 Mobile features:
1. Reading Trend Graph Screens and Recognizing Trends
2. Events
3. Alarm and Alerts
4. Sounds for Alarm, Alerts and System Messages
Part 4: You Take Care of Your G5, and It Takes Care of You!
1. Warranty
2. Dexcom G5 Mobile CGM System Maintenance
3. Travel Tips
4. Customer Service Contacts
5. Technical Information
6. Troubleshooting
7. Package Label and Product Symbols
At the end of your Dexcom G5 Mobile System User Guide, Part 5, is the user guide of a new
Dexcom G5 Mobile System feature: Dexcom Share™.
Part 5: Sharing is Caring
1. Dexcom Share
a. What Is Dexcom Share?
b. Setting Up Dexcom Share
c. How to Use Dexcom Share
d. Your Followers
e. Troubleshooting
Part 6
1. Index for Dexcom G5 Mobile System and Dexcom Share
How to Use Your User Guide
All chapters in the Dexcom G5 Mobile User Guide are laid out the same way:
The beginning of each chapter lists what you’ll be able to do after you have finished, after
that, any applicable safety statements you need to know, followed by the chapter’s content.
At the end, there’s a recap of what was covered and what’s in the next chapter.
1.3 Your Dexcom Account
You’ll need a username and password to set up the Dexcom G5 Mobile App and
for reordering.

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Dexcom G5 Mobile System User Guide
Beginning Your Dexcom G5 Mobile Continuous Glucose Monitoring (CGM) System Journey
If you haven’t already done so, go to dexcom.com and set up your own account.
Or, if you prefer, the Dexcom G5 Mobile App walks you through creating your log in
credentials as part of your initial app set up.
Summary
Now You Can:
• Describe different training resources
• Locate tutorials about using a real-time CGM in your diabetes management
• Find Dexcom G5 Mobile System’s step-by-step instructions
• Recall how to use the user guide
• Explain why you need a Dexcom account
What’s Next?
Now you are familiar with how to use this user guide and where to go for help.
Throughout the user guide you’ll see color-coded boxes containing Safety Statements. The
next chapter, Indications for Use and Safety Statement, lists all Safety Statements along with
how to read and interpret them.
Next you’ll learn about when and how to use the Dexcom G5 Mobile CGM System safely.

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Dexcom G5 Mobile System User’s Guide
Beginning Your Dexcom G5 Mobile Continuous Glucose Monitoring (CGM) System Journey
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Dexcom G5 Mobile System User Guide
Indications for Use and Safety Statement
2.1 Introduction
We want the Dexcom G5 Mobile CGM System to be a valuable tool in your diabetes
management. Like any system, there are steps to take to get the most out of it. As excited as
you are about getting started, did you know if you just took Tylenol®, maybe you should wait?
Did you know taking Tylenol is contraindicated?
In this chapter, you’ll learn about some key areas that might prevent you from having the best
CGM experience, or, if you’re not careful, might even harm you or the system. You’ll even
learn what a contraindication is!
2.2 Important User Information
Each part of your system has instructions including indications, contraindications, warnings,
precautions, and other important user information. Please review the instructions for each
part of the system in this user guide before using any of the Dexcom G5 Mobile CGM System.
This chapter is important to read. It helps you use the Dexcom G5 Mobile CGM System safely
and covers:
• What is a Safety Statement?
○Telling the difference between an indication and a contraindication
○Explaining why warnings are so important
○Defining precautions
• How to read a chapter’s Safety Statement
• Overview of Safety Statements
Let’s start with definitions, look at a Safety Statement example used throughout the User
Guide, and then review the Safety Statements broken down into the system’s components.
Safety Statement
A Safety Statement is a brief statement of the Dexcom G5 Mobile CGM System’s indications,
relevant warnings, precautions, or its contraindications (when to avoid using it). The Safety
Chapter 2
Getting Started:
Indications for Use and Safety Statement

Dexcom G5 Mobile System User Guide
16Indications for Use and Safety Statement
Statements are meant to keep you and the system safe while using the Dexcom G5 Mobile
CGM System:
1) Indications
How, for what purposes, and under what circumstances you should use the Dexcom G5
Mobile CGM System. Indications let you know who should use the Dexcom G5 Mobile
CGM System and when. Indications are the who, what, and why of the Dexcom G5 Mobile
CGM System.
2) Contraindications
Contraindications let you know when not to use the Dexcom G5 Mobile CGM System. If
used during these situations, you may hurt yourself or the system, the risk of use clearly
outweighs the benefit.
3) Warning
Important hazard information: Describes serious or life threatening circumstances to stay
away from while using the Dexcom G5 Mobile CGM System, their consequences, and how
to avoid danger.
4) Precaution
Special steps you need to take while using the Dexcom G5 Mobile CGM System, preventing
minor or moderate injury to either you or the system.
2.3 Safety Statements
This user guide presents Safety Statement two ways:
1. In this chapter’s Overview of Safety Statements
○Lists all Safety Statements
○Includes a section reviewing how the statements are formatted
2. Within a chapter
○Lists only those statements applicable to the chapter
Chapter’s Safety Statements
Each chapter will list all applicable indications, contraindications, warnings, and precautions.
Some chapters will have multiple Safety Statements; others have none. Safety Statements
are located towards the front so you can keep them in mind as you learn about that chapter’s
topic. The same statement may be repeated throughout the user guide. It’s important
to recognize which factors could prevent the system from working correctly, or even
harming you.

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Dexcom G5 Mobile System User Guide
Indications for Use and Safety Statement
Within chapters, each color coded Safety Statement is in a box, broken down into
four sections:
1. Type of statement
a. Bold and color-coded
▪WARNING-Red
▪PRECAUTION-Blue
▪INDICATION-Green
▪CONTRAINDICATION-Purple
2. Do’s/Don’ts
a. An action you should or should not take
b. Italicized
3. Why
a. A statement of the potential harm
4. Consequences
a. What could happen if you don’t follow the instructions
The following is an example of a chapter’s Safety Statement and how to read it.
WARNING
Do: Calibrate at least once every 12 hours.
Why: Calibrating less often than every 12 hours might cause inaccurate sensor
glucose readings.
Consequences: Missing severe low (hypoglycemia ) or high (hyperglycemia) Alarm
or Alerts.
Since this is a WARNING, you know it covers important safety information. Italics are the
Do/Don’t steps to follow: Calibrate at least once every 12 hours . Below the italics is a
statement explaining Why you need to follow the steps: Calibrating less often than every
12 hours might cause inaccurate sensor glucose readings. And finally what happens, or the
Consequences, if you don’t: missing a severe low (hypoglycemia) or high (hyperglycemia)
glucose event.
2.4 Overview of Safety Statements
This section provides a review of Safety Statements containing the same elements
described above (type of Safety Statement, an action, a statement of potential harm, and
consequences) listed in a narrative, not boxed, format. Here you’ll learn what indications

Dexcom G5 Mobile System User Guide
18Indications for Use and Safety Statement
and contraindications are and what to do to keep you safe and the system in proper
working order.
Safety Statements are broken down into two major categories. First, general CGM system
Warnings—reviews warnings and precautions you take with most CGM systems—and
second, Hardware/Software Warnings and Precautions list warnings and precautions specific
to the Dexcom G5 Mobile CGM System components.
Indications and Contraindications
Indications
What are the Dexcom G5 Mobile CGM System indications? Well, in technical terms, the
indications are:
The Dexcom G5 Mobile Continuous Glucose Monitoring (CGM) System is a glucose
monitoring system indicated for detecting trends and tracking patterns in persons (age 2
years and older) with diabetes. The system is intended for single patient use and requires
a prescription.
The Dexcom G5 Mobile CGM System is indicated for use as an adjunctive device
to complement, not replace, information obtained from standard home glucose
monitoring devices.
The Dexcom G5 Mobile CGM System aids in the detection of episodes of hyperglycemia
and hypoglycemia, facilitating both acute and long-term therapy adjustments, which may
minimize these excursions. Interpretation of the Dexcom G5 Mobile CGM System results
should be based on the trends and patterns seen with several sequential readings over time.
In Layman’s Terms
But what does that mean? Indications are the who, what, and why of the Dexcom G5 Mobile
CGM System.
Who
The Dexcom G5 Mobile CGM System is a single patient use device (meaning you can’t share
the components with others) for people 2 years or older with diabetes.
What
The Dexcom G5 Mobile CGM System is a prescription-only glucose monitoring device.
Dexcom G5 Mobile CGM System tracks your glucose patterns and detects trends. Working
with your home blood glucose (BG) meter, the system is meant to complement, not replace,
your BG meter.