My daughter-in-law tested our almost 4 year old grandson's fasting blood sugar and it was almost 200. He had testing at the dr and they said his A1C is 4.9 which they said is normal for his age. The drs. said nothing further needs to be done because he is not diabetic. what would cause his fasting level to be so high? I'm very concerned about him. His Mother's mom died from diabetic complications at 45 years old. She was diabetic from the age of 14. His dads dad Was diabetic from age 3 and died at 55. Now his dad was diagnosed last year at age 26 so there is a huge family history.