Renal Scan or Renogram

What Is a Renal Scan/Renogram?

Renal scans use a radioactive tracer to examine the kidneys and their function.

Before the Exam

Providing safe, quality patient care is our highest priority. For the best experience please properly prepare for your appointment:

  • Inform your doctor if you could be pregnant or are nursing.
  • Stay well hydrated by drinking at least 16 ounces of fluid within 1 hour of the test.
  • Do not bring children with you to your appointment. For their safety children are not allowed to accompany you in the exam room. Staff are unable to monitor children.

During the Exam

A Nuclear Medicine technologist will explain and perform the exam.

  • Technologist places IV in your arm and injects the radioactive tracer.
  • Technologist takes sets of images as the radiotracer travels through the blood to the kidneys and through your renal system.
  • Occasionally a medication called furosemide (Lasix) is also injected to assist flow through the kidneys and bladder.
  • Total appointment time is approximately 60 minutes.

After the Exam

  • You may resume your normal activities.
  • Increase your fluid intake unless otherwise directed by your doctor.
  • The radioactive tracer used for this test is Tc99m mertiatide (MAG3).
  • A radiologist is a doctor who reads your exam. They will get results to your ordering provider within 5 business days. Your ordering clinic will provide you with the results.
  • Follow-up care is a key part of your health. Be sure to make and go to all appointments and call your primary care provider if you have questions.

If you have any questions or concerns, please contact your provider.

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