A current is then generated which is electronically transmitted to your reader or smartphone app.įor a more detailed scientific understanding on how does the sensor measure glucose here’s one of many articles that digs deeper. The filament contains an enzyme called glucose oxidase, this enzyme reacts with the interstitial fluid, converts glucose to hydrogen peroxide. But I can’t remember the last time I had pain or blood. On random occasions there’s a sting and even a little blood. It may look scary but in truth 95% of the time there is no pain. It gets the filament into the skin and then the needle comes out, leaving the filament left behind. The needle is the delivery mechanism for the filament. The needle houses the filament that is inserted in the skin. It does have a rather scary looking needle. I apply the new sensor right next to the old one on the same arm. This helps me avoid the one hour lag and calibration time so I have no gap in my readings. Tip: I apply a new sensor 60 minutes prior to the old sensor running out and use my Libre scanner to srt the new sensor and keep the old sensor linked to my iPhone app. I hold it for a few seconds to ensure adhesion. Then clean the skin, place the applicator in the area you want to apply to and press down. This minimizes risk of attachment issues. I recommend setting the sensor pack on a flat surface and pushing the applicator down into the sensor pack. The sensor pack and applicator attach to each other and this inserts the sensor into the applicator ready for attachment to your body. I have always used the back of my left triceps (see image). Although you will find that many Libre users apply in other locations dependent upon their needs and preferences. The recommended location to apply is the back of either arm.
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