Once you’ve gotten a CGM, you’ll need to know where and how to apply it correctly.
A CGM is a small sensor that tracks your glucose levels in real-time. With a continuous glucose monitor, you have the benefit of being able to view your glucose responses to food, stress, exercise, sleeping habits, and other daily activities as they occur.
So, where is the best place to wear a CGM? Most CGMs have only been approved for use on the back part of the arm, though some sensors may be suitable for placement on the legs, stomach, or other locations on the body. Be sure to check with your CGM provider for application instructions.
If you’re wondering how to wear a continuous glucose monitor, it’s as easy as this:
Setting Up and
Installing a CGM Device
Continuous glucose monitor installation is a lot easier than it seems, but there are a few tips to keep in mind to ensure the sensor stays put. Here’s how to apply your CGM for the first time:
Start by choosing the portion of the back of your arm with the most fat and follow the steps below:
- Clean the back of your arm with the alcohol wipe provided
- Peel the plastic layer off the sensor pack
- Twist the sensor applicator so it is undone
- Line up the dark marks on the applicator and the pack
- Connect both pieces and push down on a hard surface until you hear a click
In the gray applicator, the small needle should now be visible. Place the applicator over the back of your arm and push down firmly to apply the sensor. The sensor should attach itself to your arm. You can then discard the applicator and cover the sensor with an adhesive bandage or patch. This is strongly encouraged to protect the sensor during use.
To connect your sensor, begin by downloading the Nutrisense app and logging into your account. Then, you may follow these instructions:
- Select "Settings" from the sidebar menu in the upper left-hand corner
- Select "Sensor" from the settings menu
- Click "Activate New Sensor"
- Once you see the prompt, "Ready to Scan," hold your smartphone near the CGM device until you feel a vibration
Keep in mind that CGMs can take up to one hour to appear activated inside the app.
In order to retrieve all your blood sugar data from your CGM, you will need to scan it at least once every 8 hours. The CGM records up to 8 hours of data, so in order to get a full 24 hours of data in a day you will need to scan the sensor a minimum of 3 times throughout the day, or once every 8 hours.
For most people, applying a CGM hurts less than a finger prick. The applicator that comes with the device is spring-loaded and applies the sensor quickly and painlessly. After a day of wearing the device, most people forget that it is even there.
A CGM stays on for 14 days and cannot be reinserted if it falls off early. If your sensor falls off, contact your provider to learn more about replacement options.
Take care when doing activities such as exercise as it may be easier to accidentally bump your sensor.
Nutrisense strongly suggests wearing the protective patch provided to assure the sensor does not fall off or get damaged.
The CGM sensor has a tiny wire filament (<0.4 mm) that is inserted just below the skin using a micro needle. The filament does not go past the fat layer in your arm, and is held in place by a protective glue-like seal around the sensor.
Wearing a CGM arm band or protective patch is recommended to avoid accidental dislodging of the device.
CGM App &
As a Nutrisense member, you can sync your data from some other wearables or smart watches with the Nutrisense app. This can help you learn more about how stress, sleep, and exercise routines may affect glucose.
The following devices are compatible with the Nutrisense app:
- Apple Watch
- Samsung watches
- Oura ring
- Garmin devices
Still have questions? Here are some answers to a few of the most frequently asked questions.
*Disclaimer: The Nutrisense program is not intended to diagnose, cure or prevent any conditions such as diabetes.