Renal Ultrasound

Renal Ultrasound is an exam that obtains images of the kidneys and bladder by using sound waves. A hand-held transducer (probe) is used to create images of the kidneys and bladder. It can assist in diagnosing problems, such as renal and bladder disease.


  • Adults drink 16 oz. of fluid one hour before exam.
  • Children that are potty-trained and/or 4 years old and above drink 8-16 oz. of fluid one hour before exam.
  • Do not empty your bladder until exam is complete.
  • Arrive 15 minutes prior to your scheduled appointment with a prescription if your doctor has given one to you.


  • You will lie on an exam table with your abdomen exposed.
  • A non-greasy gel will be applied to your skin during the exam.
  • The sonographer will use a hand-held transducer (probe) against your abdomen to obtain images of the kidneys and bladder.
  • The sonographer may ask you to hold your breath for a few seconds during the exam.
  • You may be asked to change positions during the exam.


  • Let the technologist know:
    • If you have had any previous surgery.
    • If you take any medication.
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