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Made the plunge and bought the Freestyle Libre
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<blockquote data-quote="Deleted Account" data-source="post: 1609550"><p>Regarding the difference between finger pricking and Libre, there are a few things to consider</p><p>- time for your body to get used to a foreign body</p><p>- the Libre readings are 15 minutes or so behind finger pricks</p><p>- the Libre takes a reading every 15 minutes. When you scan, you are downloading the last reading (actually you are down loading the last 8 hours of readings) so it may be nearly 15 minutes old</p><p>- any meter has a tolerance of about 10% (I think it is 11% but that makes calculations difficult). If they are wrong in opposite directions, the difference could be big in higher numbers. For example, if your actual value if 15, your finger prick could say 13.5 and the Libre say 16.5.</p><p></p><p>You also ask about fast rises or falls. This depends what you are doing.</p><p>If you have just eaten a mouthful of glucose (e.g. in response to a hypo), you BG can rise very fast.</p><p>If you are exercising with some insulin on board, it could fall quickly.</p><p>I have experienced a drop of nearly 5mmol/l in less than 30 minutes when running without managing my insulin correctly.</p><p></p><p>Finally, the true value of the Libre is not in the replacement of finger pricks. It is the history and trends. Using a Libre for individual readings is equivalent to using a smart phone for making calls only.</p><p></p><p>I was asked to write a blog for Diabetes UK about the Libre <a href="https://blogs.diabetes.org.uk/?p=9247" target="_blank">https://blogs.diabetes.org.uk/?p=9247</a>. Might be useful to help understand what it does and how to get the most out of it ... unless you “pimp” it as [USER=374531]@Scott-C[/USER] describes.</p></blockquote><p></p>
[QUOTE="Deleted Account, post: 1609550"] Regarding the difference between finger pricking and Libre, there are a few things to consider - time for your body to get used to a foreign body - the Libre readings are 15 minutes or so behind finger pricks - the Libre takes a reading every 15 minutes. When you scan, you are downloading the last reading (actually you are down loading the last 8 hours of readings) so it may be nearly 15 minutes old - any meter has a tolerance of about 10% (I think it is 11% but that makes calculations difficult). If they are wrong in opposite directions, the difference could be big in higher numbers. For example, if your actual value if 15, your finger prick could say 13.5 and the Libre say 16.5. You also ask about fast rises or falls. This depends what you are doing. If you have just eaten a mouthful of glucose (e.g. in response to a hypo), you BG can rise very fast. If you are exercising with some insulin on board, it could fall quickly. I have experienced a drop of nearly 5mmol/l in less than 30 minutes when running without managing my insulin correctly. Finally, the true value of the Libre is not in the replacement of finger pricks. It is the history and trends. Using a Libre for individual readings is equivalent to using a smart phone for making calls only. I was asked to write a blog for Diabetes UK about the Libre [URL]https://blogs.diabetes.org.uk/?p=9247[/URL]. Might be useful to help understand what it does and how to get the most out of it ... unless you “pimp” it as [USER=374531]@Scott-C[/USER] describes. [/QUOTE]
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