Replies to This Discussion

Permalink Reply by Larry D on May 18, 2012 at 12:07pm

my understanding from the dexcom rep is that 4 is just fine.

Permalink Reply by olu Oog on May 18, 2012 at 12:23pm

i do it once every 12 hrs. There may be few occasions when the system asks you to calibrate sooner than that, but that's really rare. I calibrate whenever it asks me to. I hope I understand your question

Permalink Reply by Parrformance on May 18, 2012 at 7:06pm

Thanks, I guess I will add them when prompted, and when it is off by 20 points or so.

Permalink Reply by jims on May 18, 2012 at 12:43pm

As best as I can tell about the sensor technology that cannot provide absolute readings and no absolute oxygen sensor to correct against drift, adding more readings really should not be issue as long as it is not excessive. Dexcom can wade in. Ther recommend 2 a day. I usually use about four as I find for me on my body more seems to keep it tracking more accurately.

I have attached article on new long term sensor that goes into the sensor technology and capabilities and why on sensors like Dexcom's, external fingerprint readings are required to correct drift.

article attached.

Attachments:

• glucose_implant_sensor_glysyn.doc, 117 KB

Permalink Reply by Parrformance on May 18, 2012 at 4:57pm

Cool, Thanks

Permalink Reply by TrueTheory on May 18, 2012 at 1:39pm

Here is an older discussion on this, let's bring it back to life!

http://www.tudiabetes.org/group/dexcomusers/forum/topics/how-many-t...

Permalink Reply by jims on May 18, 2012 at 2:23pm

Excellent call. Much good data. I notice the advice if 20 points off - calibrate surfaces; along for all other cases; mostly the two dexcom recommended cases.

and don't exceed 6.

Thank you.

Permalink Reply by lisa c on May 18, 2012 at 3:11pm

I was told never more than 2 times a day. It confuses teh system??

Permalink Reply by The Frizbian on May 18, 2012 at 5:02pm

I never rely on the Dexcom for making corrections but when the alarm goes off I test my blood sugar. As long as the numbers are close I leave it alone.

According to the Dexcom documentation I was sent when I received mine, you can add your blood sugar as often as you like as it has a built in log for you to keep track of your diabetes during the day. I was doing this for the first couple of weeks but then I got an Animas pump and now my blood sugar, insulin, and carbohydrates are already being stored there so I don't do it anymore.

Permalink Reply by Sam on June 8, 2012 at 1:13am

My CDE-- who actually has some credibility (unlike the first one) as she has been type 1 for 25+ years-- swears up and down that the key is to only calibrate when BG is totally stable and not rising or falling. That being said, she gave up on the dexcom herself years ago, which makes me wonder...

Permalink Reply by jims on June 8, 2012 at 7:11am

Look; this sensor technology does not have absolute oxygen sensor in it so it can drift.

Thus the number of calibrations needed to keep unit on track are not really a fixed number. Fo some , more a day spread out will do the trick. For other good folks, mayber the two a day is adequate.

All bodies are different and vary.

I find for me that more spread out in day are most helpful.

I agree, it is better to take readings whne blood system stable - slowly changing.

Permalink Reply by Jim Devlin on June 12, 2012 at 6:43am

I calibrate 3x per day. Breakfast, dinner, and 11:30 PM.
Been doing it this way for over two years.
The CGM is not accurate so don't expect this. It will keep you away from severe hypo. events and this makes all worthwhile.

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