THYROID FUNCTION ASSAY WITH RADIOIODINE. II. ROUTINE CALCULATION OF THYROIDAL AND RENAL RATE FACTORS 1
Open Access
- 1 January 1955
- journal article
- research article
- Published by American Society for Clinical Investigation in Journal of Clinical Investigation
- Vol. 34 (1) , 106-114
- https://doi.org/10.1172/jci103052
Abstract
Based on preceding paper, routine methods are developed for calculating thyroidal uptake and renal excretion rate factors from measured fractions of the dose of radioiodine observed at an early time after administration. Charts are included, for selected times of 1, 4, and 24 hours, giving the rate factors directly from the experimental observations when uptake readings are made with good collimation to keep the extra-thyroidal neck tissue contribution low. Under these conditions such contribution is taken as a mean value for all patients and an uptake study normally requires only one observation over the thyroid gland and one urine assay.Keywords
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- THYROID FUNCTION ASSAY WITH RADIOIODINE. I. PHYSICAL BASIS OF STUDY OF EARLY PHASE OF IODINE METABOLISM AND IODINE UPTAKE 1Journal of Clinical Investigation, 1955