Ketones are caused from not enough insulin, Dehydration,Too much Protein, and or getting sick.
When your child is sick, not feeling good or blood sugars are too High like over 240, Check for Ketones.
If your ketones are high of course call your doctor. And they will guide you through there processes.
If there is any trace of ketones have your child drink 1 cup low carb Gatorade and a lot of water within reason of what your child can handle. Check there ketones as much as possible like every 2 hours. This should get rid of the trace ketones. If your ketones get worse call your doctor. This is very important to keep track of YOUR KETONES.