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Article
July 19, 1971

New Normal Values for Thyroid Uptake of Radioactive Iodine

Author Affiliations

From the Department of Radiology, the Pritzker School of Medicine, University of Chicago and the Argonne Cancer Research Hospital, Chicago.

JAMA. 1971;217(3):337. doi:10.1001/jama.1971.03190030061017
Abstract

A 24-hour thyroid uptake test of sodium iodide I131 performed on 66 euthyroid subjects in Chicago has been analyzed. The new normal range, based on mean ± 2 standard deviations is 7% to 33%, which could explain the discrepancies between patient's clinical status and the results of the uptake test if data previously considered normal (15% to 45%), were applied.

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