Dexcom ONE+ User Manual page 11

Precautions
Secure internet: Only use a cellular internet connection, a trusted Wi-Fi network (like your home or office), or use a secure
internet connection such as a VPN service when using your Dexcom ONE+ system.
Don't use unsecured public Wi-Fi such as guest networks in others' homes, restaurants, schools, libraries, hotels, airports,
airplanes, etc. Those could expose your Dexcom ONE+ system to viruses or hacking.
Check accessories: When using accessories such as headphones, Bluetooth speakers, or smartwatches, you may get your
alerts on one device only, not all. After connecting any accessories, make sure that your phone 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 ONE+.
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 ONE+ using your BG meter, enter the BG meter 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 ONE+ 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: Dexcom ONE+ insertion safety guard is enabled until you press the Dexcom ONE+
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.
Avoid areas:
With loose skin or without enough fat to avoid muscles and bones.
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That get bumped, pushed, or you lie on while sleeping.
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Within 8 centimeters of infusion or injection site.
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Near waistband or with irritations, scarring, tattoos, or lots of hair. If needed, trim site with clippers.
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Going through security check point: You can wear the Dexcom ONE+ sensor for the walkthrough 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 Dexcom ONE+ 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 walkthrough body
scanners or putting any part of Dexcom ONE+ 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.
Use correct components: Dexcom ONE+ components aren't compatible with components from any other Dexcom product.
Do not mix components.
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.
2 • Safety information | Dexcom ONE+ User Guide
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