I wasn’t sure how to phrase this question in the title, so with a bit more detail here, hopefully it makes sense!
Dose the size of the insulin dose affect the length it is active?
For example, if I were to eat a large, carb heavy lunch and injected say 10 units of NovoRapid, would that last as long in my body as the 5 units I injected for my carb light lunch the previous day?
Common sense tells me that the larger something is, the longer it takes to disappear - think of a glass of water vs a bucket of water. If you were to steadily pour a glass of water it would be gone quicker than it would take to steadily pour the water out of the bucket.
But if they have the same active length, then the higher dose would be used much quicker during the first hour or so.
I’m tying myself in knots just trying to explain it! Hopefully it makes sense though