what does having ketones in your urine mean
(757) 668-7000. Ketones in the urine mean that the body cells are using fat for energy instead of glucose. A large amount of ketones in the urine is a danger sign and can mean the start of a serious illness.Call your child's doctor or nurse educator if your child has a large amount of ketones in his/her urine.Things that can cause the urine ketone to be positive are:1  too much food. large amount of ketones in the urine is a danger sign and can mean the start of a serious illness. Call your child's doctor or nurse educator if your child has a large amount of ketones in his/her urine. Things that can cause the urine ketone to be positive are: 1  too much food.