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Blood Glucose Monitoring
Issues with Freestyle Libre
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<blockquote data-quote="Brunneria" data-source="post: 1114362" data-attributes="member: 41816"><p>I have used 5 sensors since November.</p><p>Have 'calibrated' each one against finger prick tests using Freestyle Neo strips in the Libre.</p><p></p><p>Sensor 1 tested consistently 0.5-6 mmol/l lower than the prick test</p><p>Sensor 2 tested consistently 0.3-5 mmol/l lower than the prick test</p><p>Sensor 3 tested consistently within 0.1-2 mmol/l of the prick test</p><p>Sensor 4 tested consistently 1-1.2 mmol/l lower than the prick test</p><p>Sensor 5 tested consistently 0.1-2 mmol/l higher than the prick test</p><p></p><p>I was happy with all of those (I know I am not on insulin, but all but sensor 4 were well within a comparable 15% +/- range expected from prick testing meters, and even no 4 was highly <em><strong>consistent</strong></em>).</p><p></p><p>All 5 sensors were less accurate within the first 2 days and the last 2 days of use.</p><p></p><p>Am quite sure that I will hit a dodgy sensor soon, but so far I am DELIGHTED with the Libre and go into a minor period of mourning when I remove a sensor. I am limiting myself to 1 sensor every 3 weeks, to prevent total dependency. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite11" alt=":rolleyes:" title="Roll Eyes :rolleyes:" loading="lazy" data-shortname=":rolleyes:" /></p><p></p><p>I am wearing them, as intended, on the back of my arm, which is 'well padded', and nowadays I apply the sensor 48 hrs before activation since that seems to help with accuracy early in the sensor's life.</p></blockquote><p></p>
[QUOTE="Brunneria, post: 1114362, member: 41816"] I have used 5 sensors since November. Have 'calibrated' each one against finger prick tests using Freestyle Neo strips in the Libre. Sensor 1 tested consistently 0.5-6 mmol/l lower than the prick test Sensor 2 tested consistently 0.3-5 mmol/l lower than the prick test Sensor 3 tested consistently within 0.1-2 mmol/l of the prick test Sensor 4 tested consistently 1-1.2 mmol/l lower than the prick test Sensor 5 tested consistently 0.1-2 mmol/l higher than the prick test I was happy with all of those (I know I am not on insulin, but all but sensor 4 were well within a comparable 15% +/- range expected from prick testing meters, and even no 4 was highly [I][B]consistent[/B][/I]). All 5 sensors were less accurate within the first 2 days and the last 2 days of use. Am quite sure that I will hit a dodgy sensor soon, but so far I am DELIGHTED with the Libre and go into a minor period of mourning when I remove a sensor. I am limiting myself to 1 sensor every 3 weeks, to prevent total dependency. :rolleyes: I am wearing them, as intended, on the back of my arm, which is 'well padded', and nowadays I apply the sensor 48 hrs before activation since that seems to help with accuracy early in the sensor's life. [/QUOTE]
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