Yes, this is what it looks like on my never-sees-the-sun thigh when I wear a Dexcom sensor for 3 weeks. The suggested use is for just 7 days, but I tend to stretch it to at least 2 weeks, and on the rare occasion (like now) for 3 weeks. Kerri over at SixUntilMe had some great discussion around it last week, so I just wanted to share my own experience here. I use Skin Tac and Opsite Flexifix to keep these suckers on as long as they are still giving me good numbers that true up well with my fingerstick meter. I calibrate at least 3-4 times a day, and more if I think the Dexcom is going wonky. On days 1-3 of a new sensor, I am certainly calibrating more because it gives REALLY crazy numbers then as it tries to align itself with my interstitial fluid. (See, I provided a link for you there because I knew it was too early in the morning to use such big words.)
Crazy numbers in the beginning of a new sensor, and some quirkiness aside (like the ???’s I get whenever I lay on top of it while I’m sleeping,) I love my Dexcom CGM. It helped me reduce my HbA1c from the 7′s into the 6′s in less than a year. It got me through pregnancy, and I believe I had a wonderful and healthy baby in no small part due to the added blood sugar knowledge and control that it helped give to me. I know my methods of use and experience with it may not work for everyone, but for me and mine, I would never again want to live without it.