# Enter BG in 15 Minutes?
**URL:** https://forum.fudiabetes.org/t/enter-bg-in-15-minutes/5897
**Category:** C/GM
**Created:** [December 22, 2018, 12:13pm UTC](https://forum.fudiabetes.org/t/enter-bg-in-15-minutes/5897 "2018-12-22T12:13:18Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@ClaudnDaye](https://forum.fudiabetes.org/u/ClaudnDaye)
#### Post date: [December 22, 2018, 12:13pm UTC](https://forum.fudiabetes.org/t/enter-bg-in-15-minutes/5897/1 "2018-12-22T12:13:18Z")
Anyone seen that on their Dexcom?
He showed being low. I did a finger stick and saw he was actually 151. Tried to calibrate and received the message “Enter me BG value after 0723”. CGM reads “Enter BG in 15 minutes.”
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### Author:  [@Lisa](https://forum.fudiabetes.org/u/Lisa)
#### Post date: [December 22, 2018, 1:22pm UTC](https://forum.fudiabetes.org/t/enter-bg-in-15-minutes/5897/3 "2018-12-22T13:22:10Z")
This is on Dexcom’s website:
> **[What does the “15 minute calibration error” mean?](https://www.dexcom.com/faq/what-does-%E2%80%9C15-minute-calibration-error%E2%80%9D-mean)**
>
> This screen means you recently entered a calibration blood glucose value and the sensor is having trouble calibrating. Follow the directions on the screen to enter a finger stick reading in 15 minutes to restore readings.
Just realized that this was for the G4, but it is probably the same for the G5 and G6.
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### Author:  [@cardamom](https://forum.fudiabetes.org/u/cardamom)
#### Post date: [December 22, 2018, 2:50pm UTC](https://forum.fudiabetes.org/t/enter-bg-in-15-minutes/5897/4 "2018-12-22T14:50:25Z")
I’ve seen it before on rare occasion when I’ve had very discrepant readings from the Dex. You can also solve it I believe with an immediate double test/enter, which restarts the calibration process, because something is clearly awry with it anyway, so IMO no harm in that approach either.
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### Author:  [@ClaudnDaye](https://forum.fudiabetes.org/u/ClaudnDaye)
#### Post date: [December 22, 2018, 3:21pm UTC](https://forum.fudiabetes.org/t/enter-bg-in-15-minutes/5897/5 "2018-12-22T15:21:05Z")
That was exactly the screen I saw. Thanks Lisa!
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### Author:  [@ClaudnDaye](https://forum.fudiabetes.org/u/ClaudnDaye)
#### Post date: [December 22, 2018, 3:22pm UTC](https://forum.fudiabetes.org/t/enter-bg-in-15-minutes/5897/6 "2018-12-22T15:22:15Z")
@cardamom, no calibration was possible at all. I tried to enter even a single calibration and it pushed the timer or a brand new 15 min.
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### Author:  [@Beacher](https://forum.fudiabetes.org/u/Beacher)
#### Post date: [December 22, 2018, 4:26pm UTC](https://forum.fudiabetes.org/t/enter-bg-in-15-minutes/5897/8 "2018-12-22T16:26:08Z")
I used to see this regularly with my previous (now replaced) G4 receiver, which was often inaccurate, when I did calibrations too close together.
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### Author:  [@ClaudnDaye](https://forum.fudiabetes.org/u/ClaudnDaye)
#### Post date: [December 22, 2018, 4:40pm UTC](https://forum.fudiabetes.org/t/enter-bg-in-15-minutes/5897/9 "2018-12-22T16:40:41Z")
Since we use the G5, this is also something that is applicable with the G5. The receiver read “Low”, but when I checked him, it read 151, so I attempted to do the double calibration trick and this notification appeared.
It’s just strange that I’m just seeing this for the first time in going on 3 years now, with the G5. What I did here is something I’ve done hundreds of times in the past and never seen the notification.
Thanks all!
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### Author:  [@cardamom](https://forum.fudiabetes.org/u/cardamom)
#### Post date: [December 22, 2018, 4:47pm UTC](https://forum.fudiabetes.org/t/enter-bg-in-15-minutes/5897/10 "2018-12-22T16:47:00Z")
Weird, even if you did a quick double one? It’s been a very long time since I’ve seen it, so I can’t remember that well…
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### Author:  [@ClaudnDaye](https://forum.fudiabetes.org/u/ClaudnDaye)
#### Post date: [December 22, 2018, 4:49pm UTC](https://forum.fudiabetes.org/t/enter-bg-in-15-minutes/5897/11 "2018-12-22T16:49:17Z")
Yep, I always attempt to do the double calibration quickly (using a single blood drop if possible.)
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### Author:  [@MM2](https://forum.fudiabetes.org/u/MM2)
#### Post date: [December 22, 2018, 5:31pm UTC](https://forum.fudiabetes.org/t/enter-bg-in-15-minutes/5897/12 "2018-12-22T17:31:31Z")
Good to know. I have never seen this message. If my fingerstick was far off Dexcom, I would first wash hands and retest if meter BG seemed off. In general, I trust dexcom over meter.