Synthetic thyrotropin-releasing hormone (TRH) was administered intravenously in a dose of 7 μg/kg to 20 normal children ages 4-13 yr. Serum thyroid-stimulating hormone (TSH) was measured by radioimmunoassay and rose from a mean value of 1.7 μU/ml (range = < 1.25-7.2) to a mean peak value of 21.5 μU/ml (5.2-33.2) at 15 or 30 min after administration.
Thomas P. Foley Jr., Janice Owings, John T. Hayford, Robert M. Blizzard
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