What is a full body scan after radioactive iodine?
After the radioactive iodine treatment, a whole body scan (post-RAI WBS) is done to identify any thyroid cancer that has spread outside the thyroid bed (ie become metastatic).
How long does it take for radioactive iodine to leave your body?
The radioiodine from your treatment will temporarily remain in your body. Most of the radioiodine not taken up by your thyroid gland will be eliminated within the first (2) two days after treatment. Radioiodine leaves your body primarily by your urine. Very small amounts may leave in your saliva, sweat, or feces.
What is post therapy scan?
Posttherapy scans (PTS) with a gamma camera are typically used after therapeutic doses of 131I to visualize metastases that may not be seen with lower dose diagnostic scans.
How do you get radioactive iodine out of your system?
RAI is taken in an oral capsule form. You don’t need to be hospitalized unless the dose is very high, which is rarely needed. You will be prompted to drink lots of water after taking the pill to flush the remaining radioactive iodine out of your system.
What does a full body scan show?
The Total Body CT scan analyzes three major areas of the body: the lungs, the heart, and the abdomen/pelvis. The lung CT can detect early, potentially malignant nodules. In the heart, the scan can detect aortic aneurysms and calcium deposits within plaque in the coronary arteries.
How long does a whole body scan take?
A whole body bone scan takes around 3-4 hours, which includes two separate visits. In the first visit you will be given an injection of a radioactive isotope into a vein in your arm. There are no side effects to this injection. The isotope takes 2-3 hours to circulate in the blood and get absorbed in the bone.
What are the long term effects of radioactive iodine treatment?
Longer-term complications include recurrent sialoadenitis associated with xerostomia, mouth pain, dental caries, pulmonary fibrosis, nasolacrimal outflow obstruction, and second primary malignancies. This article summarizes the common complications of RAI and methods to prevent and manage these complications.
How do I prepare for a full body scan?
You must not have anything to eat or drink for 4 hours prior to the capsule, and for 1 hour after the capsule is given. On Thursday, you will return to the Nuclear Medicine Department for your scan. You may be asked to avoid foods and medicines that contain iodine for 10 days before the scan.
Are full body scans a good idea?
Whole-body scans are a poor screening tool. No medical societies recommend whole-body scans. That’s because there is no evidence that the scans are a good screening tool. Whole-body scans find cancer tumors in less than two percent of patients without symptoms.
How long does full body scan take?
A whole body bone scan takes around 3-4 hours, which includes two separate visits. In the first visit you will be given an injection of a radioactive isotope into a vein in your arm. There are no side effects to this injection.
