What is iodine-123 used for in medicine?

Iodide I-123 is a radiopharmaceutical diagnostic agent used for the evaluation of the thyroid function and/or morphology. Iodide I-123 (as sodium Iodide I-123) is a radioactive isotope of iodine used in nuclear medicine for the diagnostic study of thyroid disease.

What are the side effects of iodine-123?

Common side effects of ioflupane I-123 may include:

  • pain, swelling, burning, or irritation around the IV needle;
  • headache;
  • dizziness, spinning sensation;
  • dry mouth; or.
  • nausea.

What kind of radiation does iodine-123 emit?

The isotope’s half-life is 13.22 hours; the decay by electron capture to tellurium-123 emits gamma radiation with a predominant energy of 159 keV (this is the gamma primarily used for imaging). In medical applications, the radiation is detected by a gamma camera.

What is radioactive iodine 131 used for medically?

I-131 is used in medicine to diagnose and treat cancers of the thyroid gland. Where does it come from? I-131 is produced commercially for medical and industrial uses through nuclear fission. It also is a byproduct of nuclear fission processes in nuclear reactors and weapons testing.

Is Iodine-123 toxic?

Toxicity. Large doses of Iodine-123 maybe toxic to the thyroid gland and surrounding tissues. Iodine-123 may cause hypothyroidism and other thyroid disfunctions, including thyroid cancers.

What are the side effects of iodine?

Possible side effects from too much iodine include:

  • nausea or vomiting.
  • diarrhea.
  • fever.
  • burning sensations in the throat and mouth.
  • stomach pain.

Is Iodine 123 toxic?

How long does a radioactive iodine scan take?

The scan takes about 30 minutes. Why the test is performed: This test is performed to evaluate thyroid function, particularly when blood tests of thyroid function (for example, T3 or T4 levels) have abnormal results.

What are the side effects of iodine-131?

Diagnostic doses of Sodium Iodide I 131 may also be employed in localizing metastases associated with thyroid malignancies. Common side effects of Sodium Iodide I 131 include nausea, vomiting, chest pain, rapid heart rate, itching skin, rash, and hives.

How long does iodine-131 stay in the body?

Most of the radioiodine not collected by your thyroid gland will be eliminated during the first two days after your treatment. It leaves the body primarily through your urine, but very small amounts may leave in your saliva, sweat and during a bowel movement.

How long do you have to be isolated after radioactive iodine?

You are also required to self isolate for 7 days after your radioiodine treatment in order to minimise the risk of contracting COVID-19 whilst there is still a large amount of radioactivity in your body. A small proportion of people with COVID-19 may become very unwell and require admission to hospital.