After reading articles here, I realized I could continue to use my sensor past 7 days by just going to the "start sensor" option after 7 days expired. It worked twice on my last sensor. On the 20th day the reading went haywire both high and low and I changed sensor. Have others experienced extended usage beyond 20 days? What symptoms does your meter develop to indicate the sensor is really dead?

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wow, good to know accuracy better in the second week, in the first week, how far off is it in normal range? how far is it off in the <70 and over 200 range? Curious, considering for my 11 year old t1

20 days - wow. I wish. Great Good luck.

Apparently - according to attached article on new proposed sensor with one year usage; the issue is that unless titanium; present minimed/dexcom sensors are treated by body as invaders, and body sets about to wall off/occlude the sensor. In my case, unless I use the skin prep and other stuff, my body wacks off the adhesive of the sensor sitting on my skin real fast and the sensor starts to roll off.

Also this new sensor would have a absolute addition oxygen sensor to make the sensor accurste and compensate out the wandering relative nature of these sensors that require regular calibration entries to keep on track.

Attachments:
I have actually used my meter way past the 7 days days by accident. I lost track of the days and forgot I was even wearing it at times. Before I knew it I had worn it for 2 weeks. Now I do it all the time. I keep the sensor on until the meter tells me to change it. I do nothing in between. When it is time to change it the meter will show an hour glass and give me a countdown to when it is going to expire and that's when I change it. I was changing it every 7 days but once I figured this out I leave it on for as long as I can, they are not cheap. But I have never experienced any problems with my readings at all. They are close to perfect at all times even past the 7 days.

wow! even in high and low ranges?

Just restarted mine for the 3rd time on Tuesday. So far, so good. I attribute part of the life of the sensor to using an upper/inner thigh site.
where precisely is the upper/inner thigh?
OK, a little hard to describe. I sit in a chair, go down about 1/4 the way down my leg. That's the upper part. I find inner by squeezing my thighs together (still sitting) and using the spot closest to inner thigh that is still exposed, plus maybe 1". No, it doesn't hurt. You have to be careful pulling pants up/down.

your accuracy is good in the thigh area? off label right? but it looks like everyone is trying other sites...

I have had my sensors last until about the middle of the third week. I pay out-of-pocket so every little bit of improvisation and experimentation makes a difference! I know that its time to change the sensor when the readings start to look erratic. When the little plus signs that indicate a reading start to jump around or bounce up and down, I know that the sensor is probably starting to fail. The graph should be a smooth line. For instance, if the numbers are 100, 108, 112, 116, etc...the graph line should look pretty steady. However, if they're 100, 97, 103, 101, 105, 102, etc...their will be a zig-zagging pattern to the graph line. This usually tells me its about time to change it. I have pushed a little past that mark but once I start to question the accuracy of the Dex, it's kinda obsolete bc I'm testing anyway.

The most amazing thing that has ever happened in my personal struggle with diabetes type 1 is the dexcom. It has changed my life and I'm absolutely addicted to it!!! Good luck :)

Jen
Like Jen I am addicted. I've been on the Dexcom for about 2 years and I love it.

Unfortunately my insurance doesnt cover it. So I stretch my sensors as far as I can. I changed my sensor yesterday mainly because I knew it was getting so old. When I went to my calendar to check how old it was I found out it was 31 days (and still reading pretty accurately). I did have a couple of days where I was getting the ??? and I would just stop and start the sensor again and it would come back reading within a few points of a finger stick.

I cover the transmitter with IV3000 and change that when I need to.

I do find that it reads more accurately after the 2nd week.
31 days! Wow! The longest I've gotten is 19.

HOW much is one of those things. I was wondering if we could set up an arrangement whereby those of us who have 2 many of them can send it to those in need of them. Just want to know if it is costly and worth the trouble

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