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Diabetes Discussion
Type 1 Diabetes
"Stacking Insulin"
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<blockquote data-quote="AlexMBrennan" data-source="post: 513695" data-attributes="member: 82151"><p>No, you are wrong - you crucially missed having to account for the increased BG. As a rule of thumb, 25% of insulin is used up per hour, and all the carbs will have entered the bloodstream by two hours... So in your case, you'd take 2u for the carbs - correction for insulin on board + correction for high BG. </p><p>If you eat withing 2h of the previous meal, you'd also have to add a correction for undigested food.</p><p></p><p>If the insulin doses are correct for the food you eat you shouldn't have to bother with these complicated calculations though (the idea that you'd need less insulin by having two sizes if bread an hour apart is absurd)</p><p></p><p></p><p>That's because a carb is not carb, duh. Meal size, meal composition all change how it affects blood sugar. Sorry.</p></blockquote><p></p>
[QUOTE="AlexMBrennan, post: 513695, member: 82151"] No, you are wrong - you crucially missed having to account for the increased BG. As a rule of thumb, 25% of insulin is used up per hour, and all the carbs will have entered the bloodstream by two hours... So in your case, you'd take 2u for the carbs - correction for insulin on board + correction for high BG. If you eat withing 2h of the previous meal, you'd also have to add a correction for undigested food. If the insulin doses are correct for the food you eat you shouldn't have to bother with these complicated calculations though (the idea that you'd need less insulin by having two sizes if bread an hour apart is absurd) That's because a carb is not carb, duh. Meal size, meal composition all change how it affects blood sugar. Sorry. [/QUOTE]
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