How will hydronephrosis be monitored following discharge from the hospital, and what tests will need to be done?

An ultrasound and further studies are usually recommended approximately four to six weeks following discharge. Depending on whether or not the hydronephrosis is severe, a renal scan may need to be performed. If the hydronephrosis involves both kidneys, then a standard blood test would need to be performed to determine kidney function. If the child has not had an evaluation for vesicoureteral reflux, then a bladder X ray test would be necessary.