# FreeStyle Libre cost?

**URL:** <https://forum.fudiabetes.org/t/freestyle-libre-cost/2912>\
**Category:** Insurance\
**Tags:** freestyle-libre, sensor\
**Created:** [December 19, 2017, 10:45pm UTC](https://forum.fudiabetes.org/t/freestyle-libre-cost/2912 "2017-12-19T22:45:21Z")\
**Posts on this page:** 1\
**Showing post:** 31

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**Author:** ![Eric](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/eric/32/9209_2.png) [@Eric](https://forum.fudiabetes.org/u/Eric)\
**Post date:** [December 20, 2017, 5:17pm UTC](https://forum.fudiabetes.org/t/freestyle-libre-cost/2912/31 "2017-12-20T17:17:21Z")

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> [@Sam](#):
>
> Yeah I wanted to wring my docs neck when he was telling me the MARD (mean absolute relative difference) is lower than almost any test strip system… yeah, that’s wonderful in a laboratory. If only I lived in a laboratory and had control solution for blood and interstitial fluid

The problem with their lab claim is that when your BG is changing, the interstitial readers are not more accurate than meters. They are way off.

I don’t think there is any way they could be doing tests on changing BG and getting better results. I could be a test subject and totally blow up their claim of better MARD.

This is from a [post](https://forum.fudiabetes.org/t/some-dexcom-disappointment/2755) I did a while ago

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/fudiabetes/original/2X/f/fea8d64f0998b96a267e42c252e34d3562a637ec.jpg)

@sam, when you saw your doctor, did he take a BG reading? Ask him why he doesn’t just look at your CGM instead, if he is in love with their MARD so much.  
🙄

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