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Changing from Abbott Labs Freestyle Navigator CGM to Dexcom Seven Plus CGM

Not happy that Abbott Labs has discontinued the Navigator especially since it is so accurate and easy to use. Managed to bring my A1Cs from the 7.7 to 10.0 range to 5.9 to 6.5 range in the two years I have been using it. Too much of a hassle to try and get supplies from Europe where it is still being manufactured. Anyway, not a good sign for the Dexcom Seven Plus but I received it about two weeks ago, tried to set it up today and the receiver appears to be dead on arrival. I have read on the web this is a typical problem and hoping it is not a widespread quality control issue for using the device. My doctor also told me Tylenol causes the Dexcom CGM gives false highs so I will change to Advil because of that.

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I started with my Dexcom in September and have had no problems with the receiver. I find it to be most accurate when used on arm sites rather than abdomen. The only time I've experienced really inaccurate readings are rapidly rising spiking levels - sometimes the Dex will keep going as though it doesn't know when to stop. When levels are stable and especially within target range, the Dex is right on with my fingersticks. It's definitely helped me flatten my trend lines and I've eliminated virtually all lows and all highs over 180 just since September.

Hi John,

I've been using Dexcom for about a year+. I do like it a lot. The unit must be fully charged be for use. I have not heard of any problems with power. Yes it's true, you cannot take anything with acetaminophen, which would include Tylenol. I've used Advil or Aleve instead

@ Smileandnod

Your right, I've noticed I get better accuracy on my arms too. I also noticed I get better accuracy on the upper part of my stomach.



Been using the Deccom7 for almost two years.
Seems to me I charged it for 24 hours, maybe less, but far more than normal when I first received it.
I suspect you tried this, though.
I have never had problems with the equipment.
If this doesn't work I'd call them immediately.

Well my dexcom journey continues, I received the replacement receiver and when I plugged it in it started to charge and then it just stops charging so I think its actually the charger causing the problems (been plugged in for eight hours and when I unplug it, I get a low battery warning). The first receiver did not even come on when I plugged it in so that was definitely DOA but this second issue appears to be related to the charger itself. So going back on the phone to see what they say. Good news is I am on a list to be in a study for the Minimed VEVO for U.S. approval, it supposed to have a 7-day CGM that works directly with the new pump.... much better than the current CGM offerings which one brother and one sister own and both of them use it occasionally since they do not like it and especially having to change it every three days.

Hey John,

I just remembered something, Are you charging using the PC/USB cable? If you do, it will not work. The PC/USB cable only works for data transfer. You must use the AC power adapter.




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