What is a Thyroid Nuclear Scan?
What is a Thyroid Nuclear Scan?
The thyroid nuclear scan is a scan of the thyroid using radioactive particles in the form of labeled iodine. The scan uses a camera to take special pictures that will tell your doctor how much iodine is absorbed by your thyroid, This is turn tells them how the thyroid works and if it is functioning as it should.
The patient either drinks or takes a pill that contains the iodine. Then the patient waits a few hours until it is thought that the thyroid has absorbed some of the tracer particles. One this is thought to have happened, the patient has the pictures taken using a special camera called a scintography camera that is adjusted for the amount of iodine in the patients system and the gamma rays that are being emitted. Part of the test is done that day and then the patient returns again in 24 hours to take more “pictures”.
This sounds like a scary test because of the radiation involved, but rest assured, only those trained in dealing with radiation and this specific test are allowed to perform this test so you can rest easy knowing that the people you are dealing with are taking every precaution.
Patient Responsibilities
As the patient, you are responsible for letting your doctor know about any known allergies you may have. You should also ask any questions and voice any concerns that are associated with this procedure. Ask your doctor to explain the entire procedure and purpose of it to you in layman’s terms unless you yourself hold a medical degree.
When you go home from the procedure you will still have the iodine in your system. The iodine exits your system as you urinate. Do not allow anyone to come in contact with your urine during this time. Remember you are expelling radioactive iodine from your system. You should not experience any problems after this procedure, but if you do or if someone does come in contact with your urine, be sure to call your docotor immediately and ask for advice on how to proceed. Remember, never be afraid to contact your medical staff with any questions or concerns you may have.
References: MedicineNet