User's Manual
Table Of Contents
- Chapter 1
- Beginning Your Dexcom G5® Mobile Continuous Glucose Monitoring (CGM) System Journey
- Chapter 2
- Indications for Use and Safety Statement
- Chapter 3
- Risks and Benefits
- Chapter 4
- What’s the G5 Mobile?
- Chapter 5
- Set Up Your Display Devices
- Chapter 6
- Starting a Sensor Session: Inserting Sensor, AttachingTransmitter, and Starting Your Session
- Chapter 7
- Calibration
- Chapter 8
- Ending Your Sensor Session and Transmitter Session
- Chapter 9
- Home Screen, Rate of Change Arrows, and Errors
- Chapter 10
- Daily Events Affect Your Glucose Trends and Patterns
- Chapter 11
- Sensor Glucose Alarm and Alerts
- Chapter 12
- On the Go With G5: Customizing Your Alarm and Alerts
- EVERYTHING ELSE G5
- Chapter 13
- Warranty: The Fine Print
- Chapter 14
- How to Take Care of Your G5 Mobile
- Chapter 15
- On the Go With G5 Mobile: Getting Through Security
- Chapter 16
- Need Help? You’re Not Alone!
- Chapter 17
- Technical Information
- Chapter 18
- Troubleshooting
- Chapter 19
- Symbols on Package Labels
- SHARING IS CARING
Dexcom G5 Mobile System User Guide
Troubleshooting
320
Device
What you see
Problem What you do
BG Meter
Sensor
readings and
BG meter
glucose values
often don’t
show the
same.
See Chapter 7.
Differences are not
uncommon.
Readings from different
body fluids reflect
different numbers:
Meter
- from blood
Sensor
- from interstitial
fluid
20/20 Rule
If the meter shows 80
or less, CGM should
read within ± 20 points.
If the meter shows 80
or above, the CGM
should read ± 20%.
Example: a 202 mg/dL
sensor reading and a
188 mg/dL glucose
meter value = a 7%
difference (this is still
considered accurate).
Outside of 20/20 rule:
Calibrate again.
Smart
Device:
In App
Receiver
Device
What you see
Problem What you do