A typical blood sugar level in children is below 100 milligrams per deciliter, according to Mayo Clinic. A level from 100 to 125 indicates prediabetes and above 126 mg/dL in two tests leads to a diagnosis of diabetes.
Children diagnosed with diabetes also receive tests to differentiate between type 1 and type 2 diabetes. Diabetes is a metabolic disorder that causes elevated levels of blood sugar. Symptoms include increased hunger and thirst, along with frequent urination. Diabetes can result in health complications if it is not treated. Over time, it can cause kidney failure, strokes, heart disease and eye damage, notes Wikipedia. The disease is caused by inadequate production of insulin by the pancreas or the body failing to respond to insulin that is produced.