A Thyroid Scan shows the anatomy and the function of the thyroid to visualize any abnormalities.
What to Expect
- The patient will come in and be given 3 radioactive isotope capsules and return 6 hours later for the uptake and scan.
- The uptake will first calculate the percentage of the iodine capsule absorbed during the first frame. If the percentage is too high or too low, the patient will return the next morning for another uptake.
- After the initial uptake, three pictures are taken of the thyroid.
- When the patient returns after 6 hours, the test will take approximately 45 minutes.
- The patient should not eat or drink after midnight before the exam.
- The patient needs to be off vitamins for 2 weeks, thyroid medication for 3 weeks, and to have no IV contrast for 6 weeks.
- The radiologist will examine the patient before the exam.