Hypoglycaemia (sometimes termed a low) occurs when the blood glucose is below 4.0mmol/l and a child feels unwell. For some children, the level at which action is required may be higher
Ketones are acid products that are formed in large amounts if there is insufficient insulin to facilitate glucose transport into body cells for energy generation
Hyperglycaemia occurs when the blood glucose level rises above 11.1mmol/l (WHO). Children can feel thirsty and may need to go to the toilet frequently. A child can feel unwell with a high blood glucose reading and if ketones are very high this can result in damage to other organs.