Renal Scan/Renogram

This exam shows how well the kidneys are functioning.


  • You will be asked to drink some water upon arrival in the nuclear medicine department.
  • An intravenous (IV) site will be started in one of your arms.
  • You will be placed on a scanning table with a gamma camera located under the table in position to image the kidneys.
  • The nuclear medicine technologist will inject a small amount of radioactive tracer through the IV site and begin the imaging process immediately.
  • Imaging will require you to lie flat on your back completely still for 30-40 minutes.
  • It is possible that the doctor may order the exam with a diuretic, which may require additional imaging.
  • Total time for the exam may be up to one hour.

After the procedure

  • You will follow up with ordering doctor.


  • Bring a prescription if your doctor has given one to you.
  • Bring a list of current medications.
  • Well hydrate, 2-3 glasses of water, before exam.


  • If you are pregnant or suspect you may be, contact your referring doctor.
  • Tell the technologist if you are planning to travel out of the country.
  • For Macomb patients: Please note that our Nuclear Medicine equipment has a table weight limit of 400 lbs.
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