Is it possible for insulin to increase blood glucose levels?
Yes insufficient insulin production will increase blood glucose levels
Apart from regulating blood glucose levels it also helps store glucose in your liver, fat, and muscles. Finally, it regulates your body's metabolism of carbohydrates, fats, and proteins.
A fasting blood sugar level of 99 mg/dL or lower is normal, 100 to 125 mg/dL indicates you have prediabetes, and 126 mg/dL or higher indicates you have diabetes.
Apart from the blood glucose test if your child is experiencing extreme hunger, shakiness and sweats that means your child has juvenile diabetes and hypoglycemia (very low blood glucose levels).
It is not curable because the pancrease do not produce the hormone insulin which can help in storing sugar