I was 17 months old when I was diagnosed and I'm 46 yrs old now. What symptoms have you noticed on your little girl?
I wish I could be of more assistance. Without knowing the type of doctor your little girl is seeing, what he/she suspects, I can only suggest you see a Pediatric Endocrinologist, some one who specializes with the Endocrine System where diabetes is better understood.
There's a lot of missing information in your post making it difficult to answer. You failed to mention what "some tests show good signs and other not so good." are, their results, what they gave your daughter for the glucose test, how much, what each hour test results were, and why they monitored for 5 hours when normal glucose testing for adults is 1, 2 and 3 hours. And, how much is "trace of Ketone"? From a swab, or urine sample.