Abstract
Summary
Studies carried out in the Venezuelan Andes show that in this region there is an increase in thyroid clearance of iodine, thyroid uptake, conversion ratios and 24 hour protein-bound I131. Renal clearance of I131 is normal and urinary and salivary I127 low. Urinary I127 is low. It is concluded that in this region there exists a state of iodine deficiency, leading to compensatory thyroid avidity for iodine. There is no compensatory renal conservation of iodine.
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