What is a para-thyroid scan?

A PARA-thyroid scan examines your PARA-thyroid gland.

Why am I having a para-thyroid scan?

To determine the functionality of lumps in the para-thyroid gland, and to determine if the para-thyroid glands are functioning normally or have become adenomas.

Is this test safe?

Yes. You will receive a small amount of radiation from the radiotracer that is well within safety limits. X-ray contrast is NOT used in this procedure.

What happens when I have a para-thyroid scan?

A small amount of radiotracer is injected into a vein in your arm. There is then a waiting period of approximately 20 minutes in which time the para-thyroid gland accumulates the tracer. The scanning process takes about another 30 minutes. A second series of scans are taking 2 hours after the injection (they to last around 30 minutes). The images are then processed and reviewed by the doctor in nuclear medicine. Sometimes additional images are necessary.

How long will the test take?

Allow about 3.5 hours from when you arrive in the department until you leave.

What are the preparations that I need to take?

Fast overnight. Please advise our staff if you have had any other type of scan recently or blood test.

If you are breast feeding, pregnant or think that you might be pregnant, please tell the staff BEFORE the first injection.

What should I do following the test?

We ask that you:

  1. Keep yourself well hydrated for the next 24 hours. A substantial amount of the Tc99m injection will pass out through your urine.
  2. Keep your distance from pregnant woman or children.
  3. If you are seeing your doctor or any other health professional immediately after your scan please notify them that you are still a source of radiation.
  4. We ask that you do not schedule any other appointments for yourself for the rest of the day.



9716 3600


 8042 3000


9911 6800

Five Dock

8705 8300


9598 0100


8228 9000

North Strathfield

8282 8100

North Sydney (Mater Imaging)

9955 4466
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