Parathyroid Scan

What Is a Parathyroid Scan?

Parathyroid scan uses a radioactive tracer to localize an abnormally functioning parathyroid gland. Your provider may order this test if you have abnormal levels of calcium in your blood or elevated parathyroid hormone (PTH). The scan can also be used prior to surgery to assist the physician in localizing the abnormal gland.

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.
  • No special preparation is required. You may eat and drink as normal.
  • 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.
  • 15 minutes after the injection the technologist takes a set of images.
  • You are able to leave for about 1 hour without any restrictions.
  • Return for a second set of images.
  • Total appointment time is approximately 2 hours.

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 Sestamibi.
  • 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 about your procedure, please call your provider.

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