I've found that the sensors don't stay on the full 14 days. The last one dropped off my arm after 8 days. Am very careful when dressing and undressing. Have enquired to the Libre website but have had no reply. Will now try Opsite tape. Thanks.
I actually had similar issues- i reported them in a post called "fI have used 5 sensors since November.
Have 'calibrated' each one against finger prick tests using Freestyle Neo strips in the Libre.
Sensor 1 tested consistently 0.5-6 mmol/l lower than the prick test
Sensor 2 tested consistently 0.3-5 mmol/l lower than the prick test
Sensor 3 tested consistently within 0.1-2 mmol/l of the prick test
Sensor 4 tested consistently 1-1.2 mmol/l lower than the prick test
Sensor 5 tested consistently 0.1-2 mmol/l higher than the prick test
I was happy with all of those (I know I am not on insulin, but all but sensor 4 were well within a comparable 15% +/- range expected from prick testing meters, and even no 4 was highly consistent).
All 5 sensors were less accurate within the first 2 days and the last 2 days of use.
Am quite sure that I will hit a dodgy sensor soon, but so far I am DELIGHTED with the Libre and go into a minor period of mourning when I remove a sensor. I am limiting myself to 1 sensor every 3 weeks, to prevent total dependency.
I am wearing them, as intended, on the back of my arm, which is 'well padded', and nowadays I apply the sensor 48 hrs before activation since that seems to help with accuracy early in the sensor's life.
I am in Toronto, Canada. First time I saw freestyle libre. I bought one sensor and reader and installed in the back of my hand. Normally I use ONE TOUCH ULTRA. I was frightened, the reading I get 5.4mmol in freestyle libre, at the same time reading in ONE TOUCH ULTRA is 7.8. I checked one touch ultra with control solution. It is within range. I am hypoglycemic and use insulin. I am afraidI have used 5 sensors since November.
Have 'calibrated' each one against finger prick tests using Freestyle Neo strips in the Libre.
Sensor 1 tested consistently 0.5-6 mmol/l lower than the prick test
Sensor 2 tested consistently 0.3-5 mmol/l lower than the prick test
Sensor 3 tested consistently within 0.1-2 mmol/l of the prick test
Sensor 4 tested consistently 1-1.2 mmol/l lower than the prick test
Sensor 5 tested consistently 0.1-2 mmol/l higher than the prick test
I was happy with all of those (I know I am not on insulin, but all but sensor 4 were well within a comparable 15% +/- range expected from prick testing meters, and even no 4 was highly consistent).
All 5 sensors were less accurate within the first 2 days and the last 2 days of use.
Am quite sure that I will hit a dodgy sensor soon, but so far I am DELIGHTED with the Libre and go into a minor period of mourning when I remove a sensor. I am limiting myself to 1 sensor every 3 weeks, to prevent total dependency.
I am wearing them, as intended, on the back of my arm, which is 'well padded', and nowadays I apply the sensor 48 hrs before activation since that seems to help with accuracy early in the sensor's life.
I am in Toronto, Canada. First time I saw freestyle libre. I bought one sensor and reader and installed in the back of my hand. Normally I use ONE TOUCH ULTRA. I was frightened, the reading I get 5.4mmol in freestyle libre, at the same time reading in ONE TOUCH ULTRA is 7.8. I checked one touch ultra with control solution. It is within range. I am hypoglycemic and use insulin. I am afraid
I am wearing freestyle libre, When sugar goes higher, it reads more than the meter with strips. To day morning after eating I read 10.9 but in one touch ultra2 it is 8.5
Yep they do that. Seems that between 4 and 10 they work rather well but go outside its optimal range and things can be "interesting" I have it where Libre says 15.8 bloods say 10.3 also where Libre has said LO everything else say between 4.5 & 5.5.
What your seeing is not uncommon.
I started my 2 month trial with Libre last week, initiated by my diabetic clinic at the hospital.Yep they do that. Seems that between 4 and 10 they work rather well but go outside its optimal range and things can be "interesting" I have it where Libre says 15.8 bloods say 10.3 also where Libre has said LO everything else say between 4.5 & 5.5.
What your seeing is not uncommon.
Im
I started my 2 month trial with Libre last week, initiated by my diabetic clinic at the hospital.
I have found it incredibly useful although I have noticed the disparity in lower readings. I was told that because of its very nature there is a 20 minutes lag. Often half an hour after the arrow points level you suffer a hypo! I am constantly doing blood tests to double check Libre. Despite this I love the convenience of using it and am sure I will get better at using it effectively. I have been told that if doesn’t significantly improve my overall control they will not be prescribing it for me. That would be a shame because as a pensioner I could never afford to fund the sensors myself.
I would totally agree with this. 'In target range', the accuracy is pretty good. At the extremes it becomes somewhat pessimistic.
I'm double scanning at the minute with the Libre app and GLIMP. GLIMP is much more linear in its results and correlates very well to the my Accu-Chek mobile meter.