The Effect of Iodide on the Rate of Release of I131 From Autonomous Thyroid Nodules*

1 Although a portion of the I" lost from the thyroid under these conditions actually escapes in the form of inorganic iodide (1, 2), this iodide almost certainly is drawn from organic sources, arising from the deiodina- tion of free iodotyrosines (3).2 This function has often been called the "hormonal release rate."While this term has the advantage of