This patient support community is for questions related to juvenile diabetes including
Celiac disease,
depression, diabetic complications, hyperglycemia /
diabetic keto-acidosis,
hypoglycemia, islet cell transplantation,
nutrition, parenting a diabetic child, pregnancy, pump therapy, school issues, and teens with
diabetes.
Some children can have very high metabolisms. I wonder if your child simply needs more calories in than he is taking right now. Even though what you describe intake-wise is ok, perhaps he simply needs more than that. Is he very thin? Very active? (I'm sorry if you already said that, can't go back to see).
Try upping his caloric intake for a few days to see if the ketones disappear. That would probably be what I would do next. Plus monitor the occasional fasting BS and 2 hr post prandials. Keep records and make an appt with a pediatric endocrinologist if this persists. It's not an emergency, so ER care is not optimal, as you know. Their outlook is treat and street. Follow ups should be done by medical professionals who have both the time and expertise in this area.
He might eat flavored cream cheese on celery or on apples. Just trying to think of extras you might add. Good luck and please update!