Hi
@Dazza 2, Welcome.
As far as determining
what effect your bolus dose of insulin (before meal such as before lunch in this case) is having the usual time to test BSL after a meal is about 2 hours but to suss this out further maybe a 2 hours, 3 hours and 4 hours to see what is happening to BSLs due to that 58 g of carbs.
Are you carb counting and using an insulin to carbs ratio to determine your bolus dose before meals?
Some of us use continuous glucose monitoring devices to obtain a continuous type of graph of BSLs to save on finger pricks.
But meantime the above 2. 3. 4 hours would help you see what is happening. If you do that you have information to discuss with your nurse /doctor to see whether there is a need to alter diet, bolus dose or both. Same for after breakfast and after dinner meals.
To see what your
basal insulin pump program in doing there is a suggestion: look at the Home page and type into the question box upper right 'basal testing' to see how that is done.
Just to warn you that in my experience when i tried to do a 24 hour fast, that is skipping 3 meals and just relying on my basal insulin pump program, I started to develop ketones * at about the 16 hour mark. Those ketones seemed to cause my BSLs to rise as they tend to interfere with the effectiveness of the insulin and so the resulting BSLs would not be accurate.
So that is why I do the basal testing in lots of 6 hours or 12 hours at the most.
* some blood glucose meters can measure blood ketones with special strips as well as blood glucose with the usual strips
I hope that starts to answer your question, but as always please keep asking about this or anything else.
Best Wishes


