BS Corrections Levels/Numbers

What BS level/number would you do a correction at ie 10, 12....?

The lowest level Blood Glucose (BG) level at which I'd give myself a correction is at 9 as 1insulin unit will typically bring me down 3 BG units. My general rule of thumb is 1 unit of QA insulin for every 3 BG units I am above a BG reading of 6, BUT never greater than a correction of 4 QA insulin units. However I wouldn't arbitrarily give a correction at 9 as what your planning to do while the insulin is working is an important factor.

If I'm about to have my meal and then go to the park then the slight increase in physical activity will likely make the insulin work more efficiently and take care of the high for me. If I were about to jump on the motorbike or drive the car and was checking to make sure I was legal to do so then I wouldn't take a correction as unless it was very high as I don't want to risk a hypo while on the road, however when I finish my journey I may retest and take a correction then. If however I've tested because I'm about to have dinner and then sit on the sofa and watch a film I'd give the correction.

I think 9 is a good number to start a correction, of course no more than 1. Since it takes it down 2 to 3 BG
Also it depends how long after you've taken your last QA dose
If your going to do exercises that means driving walking and working and gardening
2hours is to soon your QA will still be working I use the rule
Calculate your QA dose after 4 hours using the BG at that time
When I was a lot younger with little help available I made the mistake of correcting to soon after my QA injections I learnt the hard way
Much better now with dafne