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<blockquote data-quote="KK123" data-source="post: 2245504" data-attributes="member: 451727"><p>In a word, yes. It happens often. The libre is around 10/15 minutes behind a blood test, so if my libre shows 3.4 ish (which it often does), I sort of know that it was at that level 15 minutes ago....BUT it is not entirely accurate on readings below 4 so really I can only guess at the true level 15 minutes ago. When I check this with a blood test real time, it usually shows a good 2mmol higher but of course that is the reading 'now' when I do the finger prick. With me so far?? With the feeling low, when I feel low I know by experience that I am going to be in the low 4s, so a finger prick test showing 5.1 may be out because they are not particularly accurate. It is confusing I know. I rely on the way I feel and a combination of the libre and a finger prick test and experience. If for example I am getting shaky and a test shows in the 4s or sometimes a 5, I treat it as a hypo by having a very small snack or a bigger snack if it's even lower! Also even if the libre was accurate at 3.4....that was 15 minutes ago and my body often gives itself a telling off and releases its own glucose supply, thus by the time I do the test it's back to normal even though 15 mins previously it was low! x</p></blockquote><p></p>
[QUOTE="KK123, post: 2245504, member: 451727"] In a word, yes. It happens often. The libre is around 10/15 minutes behind a blood test, so if my libre shows 3.4 ish (which it often does), I sort of know that it was at that level 15 minutes ago....BUT it is not entirely accurate on readings below 4 so really I can only guess at the true level 15 minutes ago. When I check this with a blood test real time, it usually shows a good 2mmol higher but of course that is the reading 'now' when I do the finger prick. With me so far?? With the feeling low, when I feel low I know by experience that I am going to be in the low 4s, so a finger prick test showing 5.1 may be out because they are not particularly accurate. It is confusing I know. I rely on the way I feel and a combination of the libre and a finger prick test and experience. If for example I am getting shaky and a test shows in the 4s or sometimes a 5, I treat it as a hypo by having a very small snack or a bigger snack if it's even lower! Also even if the libre was accurate at 3.4....that was 15 minutes ago and my body often gives itself a telling off and releases its own glucose supply, thus by the time I do the test it's back to normal even though 15 mins previously it was low! x [/QUOTE]
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