becca59
Well-Known Member
The 1800 rule???
1800/ total cho in 1 day= insulin sensi vity factorThe 1800 rule???
Yes I'm lucky enough to be on an insulin pump due to me experiencing many hypos during the night and bad DP and also being fairly insulin sensitive. MDI and splitting my background insulin didn't work that well for meOut of interest how do you take fractions of a unit? 0.9 for example. Does 0.1 of a unit really make that much difference? Is it pump related? (I haven’t got one! ). Thanks
As Juicyj has stated I did the same calculation to approximate my ISF by dividing 100 by my total daily dose. Then did further basal rate testing and when my basal rates where as spot on they could be I gave a small correction dose with no IOB an no food eaten in last 4 hours (last meal being lowish in fat) and devided the mmol drop by the correction dose given i.e just recently had a reading of 7.6 gave .5 units. 4 hours later was 5.7 drop of 1.9. divided this by .5 gave me a ISF of 3.8. for that particular time of day (ie morning ISF)Hope this helps
You should really wait at least 4 hours following eating to check your ISF this way as if you check any earlier you will still have insulin in your system for the food you have eaten insulin normally lasts around 4hrs ish. You may find the following link about basal testing from 'Mysugar' usefulHave you not waited too many hours (4) to get the ISF that you were looking for? would it have been better after 2 hours (or 3)? anyway, your help is very useful to me.