Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address Please contact the publisher to request reinstatement.
October 1954


Author Affiliations

From the Department of Physiology, University of Tennessee College of Medicine and the John Gaston Hospital.

AMA Am J Dis Child. 1954;88(4):439-442. doi:10.1001/archpedi.1954.02050100441002

THYROID function of the newborn was studied by Danowski and co-workers1 and by Man and co-workers,2 who determined the plasma level of the thyroxine-like protein-bound iodine and butanol-extractable iodide. In infants 1 to 3 days old protein-bound iodine averaged 12.0 γ per 100 cc., and butanol-extractable iodine in infants of 2 to 6 days was 7.0 to 11.7 γ per 100 cc. These results are compatible with hyperthyroidism in adults or older children.2 Several reports * indicated that I131 uptakes by the thyroids of normal children "less than 1 year" to 14 years of age were well within the broad range of normal adults, i. e., less than 50% of the injected dose of I131 accumulated in the thyroid area after 24 or 48 hours.

Apparently, no I131 studies have been reported on newborn infants. The absence of such studies results partly from the previous

First Page Preview View Large
First page PDF preview
First page PDF preview