Nuclear Medicine - Uptake and Scan

What is a Thyroid Uptake and Scan?

A thyroid uptake is a diagnostic exam used to evaluate the bio-distribution and the organification of iodine.  The use of a small radioactive iodine capsule is taken orally.


  • Hyperthyroidism
  • Hypothyroidism 
  • Thyroid Nodules

How do I prep for this procedure?

  • Low iodine diet
  • No seafood or sushi for two weeks prior to exam 
  • No CT with contrast or IVP for 4 weeks prior to exam 
  • Ask your physicians about any over the counter or prescription medication that may contain iodine


  • You will be in the department for 6-8 minutes to receive I-3 Iodine capsules
  • You will return 6 to 23 hours post dosing for Uptake and imaging for 20-40 minutes 
  • Uptake will take 6-8 minutes, 3 minutes on leg to verify the activity in your blood stream, 3 minutes on neck to verify the activity in your Thyroid

Scan will take 14-34 minutes to do 3 different views on your Thyroid