Glucosuria is a condition in which the glucose is excreted into the urine. Usually, kidneys has the capacity to reabsorb the glucose that are present in the urine during filtration. But this condition occurs when there is excess glucose level in the blood commonly due to Diabetes mellitus.
Ketonuria is the condition in which there are ketone bodies present in the urine. When there is not enough glucose in the body, ketones are produced. Ketones are produced when the fats and proteins in the body are burnt to produce energy. If the ketone levels become too high for too much time, the body becomes acidic which is harmful to the body.