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A member asked:

How safe is i 123 thyroid uptake and scan test as far as the amount of radiation you are getting during, after the test?

A doctor has provided 1 answer

Very safe: The amount of radiation to your thyroid or body is extremely small with a test dose of i123 used for thyroid scans. However, it is a useless test in the evaluation of a thyroid nodule unless your TSH level is below normal. A thyroid nodule of 2.3 cm needs to be biopsied. The thyroid scan is unlikely to change that recommendation.

Dr Fowler and 5 doctors agreed

Answered 8/27/2015

4.4k views

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