# Discussion of Tandem's recently released Basal-IQ function

**URL:** https://forum.fudiabetes.org/t/discussion-of-tandems-recently-released-basal-iq-function/4766
**Category:** Type 1 & LADA
**Created:** [August 8, 2018, 8:57pm UTC](https://forum.fudiabetes.org/t/discussion-of-tandems-recently-released-basal-iq-function/4766 "2018-08-08T20:57:55Z")
**Posts on this page:** 1
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### Author: ![dm61](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/dm61/32/1602_2.png) [@dm61](https://forum.fudiabetes.org/u/dm61)
#### Post date: [August 9, 2018, 3:21pm UTC](https://forum.fudiabetes.org/t/discussion-of-tandems-recently-released-basal-iq-function/4766/7 "2018-08-09T15:21:09Z")

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> [@Bloomberg article about DIY closed-loop systems](https://forum.fudiabetes.org/t/bloomberg-article-about-diy-closed-loop-systems/4683/12):
>
> Basically it just cuts basal when a BG drops below a certain point according to the Dexcom, is that right?

Looks like Basal-IQ is a little better than that. It shuts down basal if the bg is projected to cross 80 mg/dL 30 min ahead, based on the current Dex trend, and it resumes basal delivery when conditions reverse. Here is an illustration from [Tandem’s basal-IQ site](https://www.tandemdiabetes.com/products/t-slim-x2-landing-page-g6):

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/fudiabetes/original/2X/8/85cda9855671d2e1449a5283d68392e07d445e9f.png)

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