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<blockquote data-quote="Scott-C" data-source="post: 1388797" data-attributes="member: 374531"><p>Phil, I think it's important not to expect too much from it. I view it as giving me, not an answer, but more clues. If I see a 5 with downward arrow, I know it's more likely to be a 6 but that arrow makes me pay way more attention to a possible hypo. Strips just don't do that.</p><p></p><p> Meter measures capillary blood, libre measures interstitial fluid. The chances of those two entirely different fluids in different body compartments being the same are practically nil. If you get the same number it's fluke or coincidence. It's no reason for writing the libre off: there is a correlation between the two fluids. Both dexcom and medtronic require calibration on the machine. Even though libre sensors are factory calibrated, in practice I just calibrate them in my head. For people like me who have lost a lot of hypo awareness, I love getting a 30 minute heads up on possible hypos.</p><p></p><p>There's a book Wiley in vivo glucose sensing which seems to be the standard reference work in the area. Haven't bought it but there's enough in the free peek inside on Amazon to get the gist of just how damned complex this is. You're putting complex chemistry/engineering inside complex biology, the latter of which then tries to attack the former and generally frustrate what it's trying to do, yet it still gives me a good enough ballpark figure to allow me to make decisions in conjunction with strips about what to do next.</p><p></p><p>Compared to the days of colour changing strips, it's a bloody miracle.</p></blockquote><p></p>
[QUOTE="Scott-C, post: 1388797, member: 374531"] Phil, I think it's important not to expect too much from it. I view it as giving me, not an answer, but more clues. If I see a 5 with downward arrow, I know it's more likely to be a 6 but that arrow makes me pay way more attention to a possible hypo. Strips just don't do that. Meter measures capillary blood, libre measures interstitial fluid. The chances of those two entirely different fluids in different body compartments being the same are practically nil. If you get the same number it's fluke or coincidence. It's no reason for writing the libre off: there is a correlation between the two fluids. Both dexcom and medtronic require calibration on the machine. Even though libre sensors are factory calibrated, in practice I just calibrate them in my head. For people like me who have lost a lot of hypo awareness, I love getting a 30 minute heads up on possible hypos. There's a book Wiley in vivo glucose sensing which seems to be the standard reference work in the area. Haven't bought it but there's enough in the free peek inside on Amazon to get the gist of just how damned complex this is. You're putting complex chemistry/engineering inside complex biology, the latter of which then tries to attack the former and generally frustrate what it's trying to do, yet it still gives me a good enough ballpark figure to allow me to make decisions in conjunction with strips about what to do next. Compared to the days of colour changing strips, it's a bloody miracle. [/QUOTE]
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