[Diabetes-Talk] Dexcom G6 off from finger stick

Sun Mar 1 20:36:12 UTC 2020

Oh wow, that's a big sliding scale. I only take a single unit of insulin for
corrections. Starting at 200, I take 1 unit, and one more for every 50 over.
So if 250, I take 2 units, so-forth-and-so-on. Are you able to feel highs
and lows? This for me is my best way of determining if my readings are
accurate, but I'm very sensitive to both highs and lows. You can also
contact your endo and see what they recommend.

Bridgit

-----Original Message-----
From: Diabetes-Talk <diabetes-talk-bounces at nfbnet.org> On Behalf Of Greg
Wocher via Diabetes-Talk
Sent: Sunday, March 1, 2020 2:19 PM
To: Diabetes Talk for the Blind <diabetes-talk at nfbnet.org>
Cc: Greg Wocher <gwocher at gwocher.com>
Subject: Re: [Diabetes-Talk] Dexcom G6 off from finger stick

Hello,
I worry about this because of the amount of insulin I need to take for
corrections. I take:
5 units of Humalog for sugars between 151 and 200.
10 units of Humalog for sugars between 201 and 250.
15 units of Humalog for sugars between 251 and 300.
20 units of Humalog for sugars 301 and above.

So if the dexcom says my sugar is 130 and its actually 160 and above I may
not take enough insulin. 

Greg Wocher

> On Mar 1, 2020, at 2:00 PM, Veronica Elsea via Diabetes-Talk
<diabetes-talk at nfbnet.org> wrote:
> 
> Greg, it's the per centage that matters. So it depends on what your 
> reading is. If your meter says 100 and your Dexcom says 80, you are 
> within the 20 per cent calibration range that Dexcom allows. I like to 
> keep mine in the 10 per cent range of my meter. Also, remember that 
> there is a bit of a lag between your meter and any CGM. I also find 
> that sometimes for the first couple of hours, some sensors may be off 
> a bit but they eventually sort themselves out. When you calibrate, if 
> in my example of a meter saying 100 and the Dexcom saying 80, when you 
> calibrate, it will change to 90. If you are way way off, it will 
> usually notice that and make you do three calibrations in a row, once 
> every 15 minutes. But I've had a majority of sensors that never needed
calibration.
> As for having the sensor in your belly, the only thing I'd mention is 
> being just a bit careful when pulling pants over it that nothing 
> catches. I sometimes put my Omnipod pods there and even they survive.
> Veronica
> 
> 
> "Guide Dogs, First Hand", Veronica Elsea's classic album is now 
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> To learn more, visit:
> http://www.laurelcreekmusic.com
>                 Veronica Elsea, Owner
> Laurel Creek Music Designs
> Santa Cruz, California
> Phone: 831-429-6407
> 
> 
> -----Original Message-----
> From: Diabetes-Talk [mailto:diabetes-talk-bounces at nfbnet.org] On 
> Behalf Of Bridgit Kuenning-Pollpeter via Diabetes-Talk
> Sent: Sunday, March 01, 2020 10:51 AM
> To: 'Diabetes Talk for the Blind'
> Cc: Bridgit Kuenning-Pollpeter
> Subject: Re: [Diabetes-Talk] Dexcom G6 off from finger stick
> 
> Actually, of by 30 or 40 is typical for any glucometer, CGM or
traditional.
> I wouldn't be too concerned. The average home meter has only a 20 or 
> 30% accuracy compared to an A1-C. So, 30 or 40 off is standard.
> 
> Bridgit
> 
> -----Original Message-----
> From: Diabetes-Talk <diabetes-talk-bounces at nfbnet.org> On Behalf Of 
> Greg Wocher via Diabetes-Talk
> Sent: Sunday, March 1, 2020 6:20 AM
> To: Diabetes Talk for the Blind <diabetes-talk at nfbnet.org>
> Cc: Greg Wocher <gwocher at gwocher.com>
> Subject: [Diabetes-Talk] Dexcom G6 off from finger stick
> 
> Hello,
> Since I put in my new sensor last night I am noticing it is off by 
> around 30 to 40 units from a finger stick. Should I try calibrating 
> the Dexcom G6. It being off this much is making me nervous.
> 
> Thanks,
> Greg Wocher
> 
> 
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