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Wrong readings with freestyle libre 2
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<blockquote data-quote="Mike88" data-source="post: 2586335" data-attributes="member: 556988"><p>Currently experiencing L2 inaccuracy issue of up to 40% out cf finger prick, particularly at the lower end. I am being careful to do a finger prick test first & scan L2 10-15 minutes later to take the lag between CBG & ISF into account. The product specification for both L2 & finger prick meters is to be within 15%, so when comparing to each other there is a potential tolerance of up to 17.25%. At up to 40% under true readings the alarm is often going off telling me I am having a hypo, when I'm not. I contacted Abbott who advised to swap the sensor & they will send a replacement. This has not resolved the issue. I have been using L2 for about a year. I did a lot of parallel finger pricks to validate the sensors worked & they were usually within about 5%, so I reduced second checks. The recent increase in L2 hypo alarms made me think & delve deeper again. My concern is that Abbott have adjusted their algorithm in response to the recent recall, when a batch of sensors was found to be reading too high, but have swung the pendulum a little too far. Of course only Abbott or the MHRA will have enough visibility to know this. Has anyone else just started to have this problem? We should adapt to evolve to accommodate the tech, it should perform according to its spec or consider switching to a different sensor/manufacturer.</p><p></p><p>Wrt the other points in this discussion: I find if I put a new sensor on after a shower & also prep the area with an alcohol swab & let then skin dry, they stick on for the duration. I usually put my new sensors on in the morning, have 2 sensors in place for the day & then when my older one expires, that evening, the new one has 'soaked' & is ready to go. Some have fallen off but mostly on a hot, humid summers day following a run. One sensor has failed, it would not read. Error message read 'Scanning error. Try again in 10 minutes', which happens sometimes. This happened for half an hour so I called Abbott & they advised to swap & they would replace.</p><p></p><p>If anyone has direct experience of using both L2 & L3, it would be great to hear how they compare, especially accuracy. Likewise, if anyone has first hand experience of a G7 plus L2/3.</p><p></p><p>Best of luck.</p></blockquote><p></p>
[QUOTE="Mike88, post: 2586335, member: 556988"] Currently experiencing L2 inaccuracy issue of up to 40% out cf finger prick, particularly at the lower end. I am being careful to do a finger prick test first & scan L2 10-15 minutes later to take the lag between CBG & ISF into account. The product specification for both L2 & finger prick meters is to be within 15%, so when comparing to each other there is a potential tolerance of up to 17.25%. At up to 40% under true readings the alarm is often going off telling me I am having a hypo, when I'm not. I contacted Abbott who advised to swap the sensor & they will send a replacement. This has not resolved the issue. I have been using L2 for about a year. I did a lot of parallel finger pricks to validate the sensors worked & they were usually within about 5%, so I reduced second checks. The recent increase in L2 hypo alarms made me think & delve deeper again. My concern is that Abbott have adjusted their algorithm in response to the recent recall, when a batch of sensors was found to be reading too high, but have swung the pendulum a little too far. Of course only Abbott or the MHRA will have enough visibility to know this. Has anyone else just started to have this problem? We should adapt to evolve to accommodate the tech, it should perform according to its spec or consider switching to a different sensor/manufacturer. Wrt the other points in this discussion: I find if I put a new sensor on after a shower & also prep the area with an alcohol swab & let then skin dry, they stick on for the duration. I usually put my new sensors on in the morning, have 2 sensors in place for the day & then when my older one expires, that evening, the new one has 'soaked' & is ready to go. Some have fallen off but mostly on a hot, humid summers day following a run. One sensor has failed, it would not read. Error message read 'Scanning error. Try again in 10 minutes', which happens sometimes. This happened for half an hour so I called Abbott & they advised to swap & they would replace. If anyone has direct experience of using both L2 & L3, it would be great to hear how they compare, especially accuracy. Likewise, if anyone has first hand experience of a G7 plus L2/3. Best of luck. [/QUOTE]
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