Dexcom Users

For users of a Dexcom Continuous Glucose Monitoring ("CGM") device

Just as a reminder with the recent release of the new Dexcom G4 to the US market--it is NOT okay to post about previous models or older sensors as being 'for sale' on this site.

It is a violation of the Terms of Use because it is a prescription device, and any such efforts will unfortunately be removed.

We encourage you to donate supplies to non-profits such as the Charles Ray III Diabetes Association (, which accepts unexpired glucometer and insulin pump supplies, or alternatively you may talk to your physician's office or other local medical group to discuss donating them to those in need of assistance.

Thank you all for kindly refraining from this activity.

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Latest Activity: 14 minutes ago


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Rich demos insertion of a G4 sensor- video

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Diabetes Forum

Survey - Is insurance covering your Dexcom device?

Started by mtulchin. Last reply by Michael McClure 2 hours ago. 98 Replies

New to Dexcom

Started by Linny. Last reply by Linny on Thursday. 12 Replies

Billing Question

Started by Anthony. Last reply by Parrformance Jul 15. 11 Replies

mac, dexcom, and my dexcom G4

Started by dishers. Last reply by Mike777 Jul 12. 7 Replies

Documentation of 30days of BG's

Started by SueSue. Last reply by SueSue Jul 12. 4 Replies

Bionic pancreas ....

Started by Gail. Last reply by Bob Martin Jul 6. 13 Replies

Dexcom G4 w Animas Vibe Pump Impressions?

Started by Fred Goldberg. Last reply by dishers Jul 2. 14 Replies


Started by elaine peterson. Last reply by Cody Turner Jun 29. 6 Replies

Aging G4 transmitter

Started by Helmut. Last reply by Helmut Jun 23. 9 Replies

New Receiver?

Started by marnie. Last reply by marnie Jun 5. 9 Replies

United Healthcare Coverage of the G4

Started by cat3440. Last reply by dejahthoris Jun 3. 13 Replies

Comment Wall


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Comment by Cat on May 17, 2014 at 9:30am
What causes my dex to skip a read? Like one gap in my trend line? I have a few here and there.
Comment by Michael McClure on May 17, 2014 at 8:25am

Depends. I could not even LOOK at Tylenol when I was using the 7+ or my sugar numbers would skyrocket (but my sugars were fine, of course), but Tylenol is no issue AT ALL with the G4.

Give it a try -- see what happens with you and your unit. If the unit freaks out, then don't use acetaminophen products. If it's okay, then you're good to go.


Comment by Cat on May 16, 2014 at 6:28pm
So I know we can't take Tylenol but is my low dose aspirin ok and what about Motrin?
Comment by Wyldceltic1 on May 16, 2014 at 1:34pm

While you can add events in the receiver, I don't see "Travel" so other than take notes of your trip for the doc, you'd just adjust the tame for your vacation spot when you get there and set it back when you come home.

Comment by Cat on May 16, 2014 at 1:28pm
great information and i like that you even have it timed. I'm trying to forward think about because I will be flying with it soon and I'm trying to figure out the change to make sure it is timed with the trip.
Comment by Wyldceltic1 on May 16, 2014 at 12:49pm

At the day of a sensor change out, you'll get warnings of "Replace Sensor Soon". When I see that, there is usually a few hours left see that in the lower right of the receiver screen, so I -depending on my stability- (Say, if I am due to eat lunch), I will, then I stop sensor, then immediately 'start sensor' and wait the 2-hours till I calibrate as if it is a new sensor. By the time the 2 hours have passed, my BG is stable enough to calibrate.

Comment by TmoeZ on May 16, 2014 at 12:45pm

@Cat It's done when the readings are just not even close or the site can get infected and start to itch or the sensor can just fall off if precautions for wearing it longer are not taken such as extra tape and such.

Comment by TmoeZ on May 16, 2014 at 12:44pm

@Cat Yep, that's exactly how you do it. Just stop and start the sensor. It will still take the normal time to re calibrate but it will work.

Comment by Cat on May 16, 2014 at 12:41pm
thanks to everyone for all the feedback. I have been doing a lot of reading about sensors lasting much longer than 7 days. What do you do leave the sensor on and then on the receiver hit start sensor again? How do you really know your sensor is truly done?
Comment by Wyldceltic1 on May 16, 2014 at 11:13am

If possible, the Photo update could be a 7+ and G4 alongside of each other. :-)


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