This is a question for your child's dsn and doctor.
They will advise you about how best to make adjustments and ways to sort out thise high blood sugars with least risk.
Yes, but in case you're wondering, here are some reasons why we can't advise (apart from the obvious that we're not doctors and don't know your child's medical history.)
1) Depending on when you injected the pre-meal apidra, there may still be some in your child's system so his/her blood sugar may still be coming down. (Unlike pre-meal blood sugars where the bolus from the last meal is mostly out of your system.)
2) Extra insulin before bed can be risky if you don't know what you're doing, as you don't want to go too low in the night.
3) If your child is a new diabetic, they may still be honeymooning (their pancreas produces unpredictable amounts of insulin), again making correction doses the reserve of the expert and not members of a forum.
Your DSN may well tell you to do a night time correction dose, but they also may well not.