In children renal failure in terms of urine output is defined as ?

.Many people with acute kidney failure only create 16 ounces of urinea day (the average adult urinates between 34 to 50 ounces per day). When urine output is low, fluid retention occurs, causing swelling in the legs, feet and ankles. Because wastes are not being removed from your body, you will feel ill. Reference: GHAI Essential pediatrics, 8th edition