Studies and Diagnostic Tests of Salivary-Gland and Thyroid-Gland Function with Radioiodine

Abstract
RADIOIODINE (I131) has been used extensively in the diagnosis of thyroid disorders, and many tests have been developed.1 2 3 Most of these tests are based on two aspects of thyroid activity: the removal of iodine from the plasma and the synthesis and secretion of thyroxin.In clinical work on thyroid function in this laboratory both aspects of thyroid activity have been tested,4 the first by a thyroid pickup measurement, and the second by a measure of the fraction of radioiodine in the blood plasma that is protein bound, both tests being taken twenty-four hours after the administration of the dose. The . . .