There are few indications for ordering a radioactive iodine uptake or a thyroid scan in a primary should be the initial test ordered. If the thyrotropin level is low or suppressed, and the diagnosis of thyroidits vs Graves' hyperthyroidism is not clear, a radioactive iodine uptake test is appropriate. In the case of a euthyroid nodular goiter, fine-needle aspiration is the most accurate initial test to evaluate for malignancy. The primary indication for a scan in the case of a euthyroid nodular goiter is a low or suppressed thyrotropin level, because malignancy is rare in a hot nodule. If thyroid cancer or congenital hypothyroidism is encountered, referral to an endocrinologist is probably the most expedient and cost-effective way to proceed.
|Number of pages||4|
|State||Published - Apr 1 2007|
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