1. This test will examine your kidneys and bladder using sound waves. There are no known health risks from using these sound waves to make images.

2. Drink 24 ounces of fluid, must be finished drinking 45 minutes before your appointment time. DO NOT EMPTY YOUR BLADDER. You may take medication along with the water.

3. An ultrasonographer will make a set of images for the Radiologist. A gel will be applied to your abdomen and the ultrasound transducer will be rubbed on your skin.

4. The Radiologist will interpret your images and a report will be sent to your doctor. You will receive the report from your doctor.