Hi All, I hope the title makes sense. I wanted to know from people's experience whether it is common for people to need a different correction factor to correct a very high blood glucose (say 14 mmol/L or higher) than for a moderately high BG (10 mmol/L). I have read somewhere that high blood glucose makes people more insulin resistant, so am thinking the correction factor may need to be different depending on the current BG level. From my experience, I feel like 1 unit of Novorapid will drop my BG less when it is high/very high compared to when it is moderately high. Or does 1 unit just take longer to bring the BG down by the same amount? I'm a bit confused and still trying to work out a correction factor that works for me under different conditions. I am on basal-bolus therapy with twice-daily Levemir and Novorapid before meals and for corrections between meals if that helps. I also use an app to calculate insulin on board to avoid stacking.