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<blockquote data-quote="In Response" data-source="post: 2461747" data-attributes="member: 527103"><p>Bear in mind that Libre has a tendency (but not always) to over-read when in double figures. My experience is that it is most accurate between about 4 and 8. So, it may say 18 when a finger prick is nearer 14.</p><p>For this reason, I always double check a high Libre reading before making a correction. </p><p></p><p>I also find that the speed at which Fiasp works is very dependent upon my current level - Fiasp is almost instant when my levels are in the 4s but can take an hour to work if my levels are in double figures. </p><p></p><p>Your morning rise could well be related to Dawn Phenomenon/Foot on the Floor (liver dump) rather than a problem with Fiasp. It is common to be more insulin resistant first thing in the morning which means we need more insulin and it takes longer to start working, plus we are dealing with the glucose dump from our "helpful" liver. </p><p></p><p>I was advised that exercising with high levels can cause them to go higher. For me, a level of 6 or 7 is my sweet spot for exercise. Any higher and my levels get too high making me feel sluggish.</p></blockquote><p></p>
[QUOTE="In Response, post: 2461747, member: 527103"] Bear in mind that Libre has a tendency (but not always) to over-read when in double figures. My experience is that it is most accurate between about 4 and 8. So, it may say 18 when a finger prick is nearer 14. For this reason, I always double check a high Libre reading before making a correction. I also find that the speed at which Fiasp works is very dependent upon my current level - Fiasp is almost instant when my levels are in the 4s but can take an hour to work if my levels are in double figures. Your morning rise could well be related to Dawn Phenomenon/Foot on the Floor (liver dump) rather than a problem with Fiasp. It is common to be more insulin resistant first thing in the morning which means we need more insulin and it takes longer to start working, plus we are dealing with the glucose dump from our "helpful" liver. I was advised that exercising with high levels can cause them to go higher. For me, a level of 6 or 7 is my sweet spot for exercise. Any higher and my levels get too high making me feel sluggish. [/QUOTE]
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