Carbs - Rounding up/Rounding down

[mum2westiesGill]

When rounding up with your carb totals what your personal BG level have to be, also the same question but for rounding down?

 

[everydayupsanddowns]

I'm not sure I get what you mean WM?

 

[mum2westiesGill]

I'll have another go

If the total amount of carbs in your meal adds up to eg 48g and your BG was in range would you round up to 50 or round down to 40, also working with a one unit pen & on a ratio of 1u to every 10g cho.
If your BG was slightly out of range (maybe a touch higher) what would you do?

 

[Redkite]

I see what you mean, it's not a decision you have to make with a pump 🙂.

I would use the exact amount of carbs, work out the insulin, and round the dose to the nearest unit. So 48g at 1:10 would be 5U.

If BG was higher than target I would work out a correction amount (using a factor of 100 divided by TDD, e.g. If TDD = 25U, correction factor would be 1U of insulin for every 4mmol). So for example, if the BG was 8 and I normally correct down to 7, I would need 0.25U for a correction, so added to the 4.8U needed for the carbs, 5U would still be ok. If BG was 10, the correction would be 0.75U in this example, so the carbs + correction would be 5.55U, which I'd be inclined to round up to 6U.

You may find it helpful to get a half-unit pen? There was a thread on these a couple of weeks ago I think.

 

[everydayupsanddowns]

That was what I found really helpful about the Expert meter - you could program all those factors/ratios in and only had to log what you were eating for it to do all the sums 🙂

I've always just rounded mathematically, do all the dose+correction then round up if .5 or higher and down if .4 or lower