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Thyroid Scan

This scan provides information about the function and the structure of the thyroid gland. The thyroid gland consists of two lobes and is located in the lower part of the front of your neck. For this test, you will receive an injection of a radiopharmaceutical into a vein in your arm, and then wait for 20 minutes for the injection to absorb into the thyroid. Images will then commence which take around 20 minutes.


  • No CT contrast (iodine) injections in the last 6-8 weeks
  • Thyroxine ceased for 4-6 weeks (to be discussed when booking the scan).

Test Duration: 45 minutes
Are there any after effects: No

Clinical Indications:

  • Thyroid Overactivity
  • Assessment of hyperthyroidism
  • Assessment of thyroid nodules

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