Hia Leona, sorry i wasn't around for you in the early hours if the morning but glad Jack412 was there and that your son is better. It can be frightening when there are high sugars and ketones at this time of the morning so you did well to act as you did. I would speak to your hospital team on Monday and ask them for guidance on what to do in these circumstances, there is plenty on here but it's dotted about the place. My DSN was able to provide me with a little guide about what to do when I have high numbers (I am on a pump so vitally important as ketones are more of a risk). She should work through with you and calculate how many units are need to bring your son's levels down. Were all different depending on the amount of insulin etc we take but as a general rule 1 unit of fast acting insulin will reduce blood sugars by about 3. When sugars are high or when you're ill the insulin correction dose may well need to be increased. Best thing is to talk it over with your nurse. G