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advised to have TSH, UTZ , and Tg RIA. What is Tg RIA?

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Good day!

I have had my near total thyroidectomy last Nov 2011 for papillary thyroid carcinoma. I haven't had RAI yet.

During my visit with my endo on June 2012,I was not advised to have RAI but have to visit again after 6 months. I am advised to have TSH, UTZ , and Tg RIA.

What is Tg RIA? What is it for? What should be the range I should consider safe?


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replied July 15th, 2012
Thyroid Cancer Answer A37083
Hi,
Welcome to the ehealthforum and I am glad to help you out. Tg RIA is the radio-immunoassay by which thyroglobulin is measured. This is a very sensitive assay and is used in the post-surgical follow-up of the patients who have undergone thyroidectomy. This assay helps in detecting only the thyroglobulin and not other antibodies which can interfere in the assessment of the residual cancer. The exact range varies from lab to lab. Hence, you need to follow the reference values of the lab from which the test will be done. I sincerely hope that helps. Take care.


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