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Type 1 Diabetes
When Should You Feel a Hypo?
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<blockquote data-quote="Bill_St" data-source="post: 1580072" data-attributes="member: 310899"><p>Have been using Libre for 2 yrs and have found my awareness to be improving. </p><p>I am lucky in that Libre gives me very similar readings to blood so can use it to learn. Now I recognise small symptoms even subconsciously. </p><p>I awake at night in the 4 s,. If dropping quickly at around 5.0, if slowly nearer 4.0. This is similar to daytime awareness but actually quicker/earlier. Daytime is more like 4.5 (fast) and 3.5 (slow) when I can be certain without checking with Libre - but I find I have actually checked(scanned) without realising that I have felt the symptoms, if that makes sense.</p><p> I have found the lag time (time difference between ISF readings and blood) is shorter when going down than when rising; which I believe is the algorithms they have developed to reduce lag and is confirmed by trials. About 5 minutes lag on avaerage but 0 lag when falling and almost 15 minutes when rising. Quite important when working out how much glucose is needed to raise levels without massive rebound.</p><p> If falling slowly I will start at around 4.0 with only a 1/4 glucotab, around 1gm of fast acting carb. If falling fast then up to 1 tab (4 gm ) . Then check in 15 minutes and redose if/as needed. </p><p>Can now level it out at around 6 without shooting up to the teens <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p>So much information from Libre opening up a new world. I would never have dared run so low before without much greater glucose dose and certain hyper following. The old days of 2-4 glucotabs for a hypo have gone thankfully!</p><p></p><p>On top of the blood/ISF lag, I believe there is a brain/blood lag. It takes about 5-10 minutes for brain symptoms to follow other physical symptoms. An interesting topic.</p></blockquote><p></p>
[QUOTE="Bill_St, post: 1580072, member: 310899"] Have been using Libre for 2 yrs and have found my awareness to be improving. I am lucky in that Libre gives me very similar readings to blood so can use it to learn. Now I recognise small symptoms even subconsciously. I awake at night in the 4 s,. If dropping quickly at around 5.0, if slowly nearer 4.0. This is similar to daytime awareness but actually quicker/earlier. Daytime is more like 4.5 (fast) and 3.5 (slow) when I can be certain without checking with Libre - but I find I have actually checked(scanned) without realising that I have felt the symptoms, if that makes sense. I have found the lag time (time difference between ISF readings and blood) is shorter when going down than when rising; which I believe is the algorithms they have developed to reduce lag and is confirmed by trials. About 5 minutes lag on avaerage but 0 lag when falling and almost 15 minutes when rising. Quite important when working out how much glucose is needed to raise levels without massive rebound. If falling slowly I will start at around 4.0 with only a 1/4 glucotab, around 1gm of fast acting carb. If falling fast then up to 1 tab (4 gm ) . Then check in 15 minutes and redose if/as needed. Can now level it out at around 6 without shooting up to the teens :) So much information from Libre opening up a new world. I would never have dared run so low before without much greater glucose dose and certain hyper following. The old days of 2-4 glucotabs for a hypo have gone thankfully! On top of the blood/ISF lag, I believe there is a brain/blood lag. It takes about 5-10 minutes for brain symptoms to follow other physical symptoms. An interesting topic. [/QUOTE]
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