Hi
Not a silly question, at all. This is your sons first diabetic Christmas and given the whole thing revolves around food its a very sensible question!
This is my first diabetic Christmas too (dx Sept) and am on same regime as your son, for now. This is the failure of premixed insulin - Flexibility is poor for occasions such as this. I am not an expert (even on myself LOL) but can make suggestion based on my own plans.
I inject at 8 and 6, but plan to move my morning insulin forward and take more of it (either 1 or 2 u) so that it will cover my planned lunch at 1.30pm. As I usually have four hours between pre brekkie injecting and lunch I am moving it to 9am so that there is still a 4 hour gap (if that make sense) when I eat at 1.30.
As amount eaten will be more than usual at 'lunch time', I am taking more to cover it.
If your son is eating at 3.00 pm then maybe you could move his morning injecting time forward in the morning to cover this. Although he is eating later than me, maybe holding off a bit in the morning will be feasible.
BG might read a bit higher pre injection as a result but just check fasting and then pre-injecting to reassure yourself that things were normal that morning!. Or it might hold steady enough, need to test and see. Then later on you could move insulin forward again to cover what tea/supper he might have. I intend to take insulin half hour later on Christmas night and not snack mid afternoon.
Bg might be a bit higher at 3pm but I wouldnt inject at 2.30 after injecting in the morning and then not again until the following morning because this might be too much for the first part of the day but wont cover him until the next day.
Better to move morning forward and run a bit higher , than the high you will likely get if you have 2nd injection at 2.30. If he is not injecting again until say 8am, then thats nearly 18 hours without insulin. If you get a chance, maybe give the DNS a call about this as only my opinion?
I told mine what I intended to do and she suggested was to take usual amount at usual times (also another option) that I just accept my sugars will run high that day but they will be fine the following day or so. Was also 'warned' not to try and correct later on (em, you cant with premix thanks very much) and not to put insulin up by too much.
Good luck with whatever you decide. Trick is, as always, to be guided by your meter to some degree (to snack, or not to snack etc).
Lilibet
