Correction Query

[Dollyrocker]

After my adventures on CGM I have some new carb/insuulin ratios to work to, 1:15 for lunch, 1:20 for dinner.

Can anyone tell me if corrections should be worked out at the food/insulin rate or on a general 1u = 3mmol drop rate?

 

[shedges]

There's a calculation to work out your correction ratio that involves the number of units of Novorapid and Lantus that you take daily. I can't remember the exact formula - have you tried phoning your nurse?

 

[noblehead]

On the DAFNE course we were told that 1 unit of corrective insulin (novorapid) brings down bg by 2-3mmol, but I know from experience that depending upon the time of day it can vary somewhat, so the only true way of knowing is by testing and recording your results. I wasn't aware there was a formula involved in corrections as shedges suggests, so it may be worthwhile asking your dsn if he/she can find this formula for you in the meantime.

Nigel

 

[jopar]

You'll thinking of the 1800 rule for working out your correction factor..

Here's a link to explain it

http://www.diabetesnet.com/diabetes_con ... z13NjS7j00

 

[iHs]

The '100 rule' also works. The idea is to divide 100 by your TDD ( total daily dose of insulin) to find out. On bolus/basal it's a bit hit and miss as Nigel says as at certain times of the day your need for insulin alters.

A good way to not over correct with insulin is to use a higher target (8 for example) to correct to. As with everything though, it's all trial and error with eating, testing etc.

 

[Dollyrocker]

Thanks guys, since my total insulin vatries so much from day top day (if we are including Novo) I think I'll stock to 1u = -3 for correction and the new ratios for food.

It was the DSN that gave me the new ratios in the first place plus a reduced dose of Lantus (which doesn't work as I told her it wouldn't )

 

[noblehead]

Thanks guys, since my total insulin vatries so much from day top day (if we are including Novo) I think I'll stock to 1u = -3 for correction and the new ratios for food.

It was the DSN that gave me the new ratios in the first place plus a reduced dose of Lantus (which doesn't work as I told her it wouldn't )

Your post-prandial bg results will tell you if 1 unit of insulin brings down your bg by 3mmol, I find personally that 1 unit is enough to reduce my bg by 2mmol.

Nigel