Serum Concentration of Free T3, Free T4, and TSH In Healthy Children

@article{Cioffi2001SerumCO,
  title={Serum Concentration of Free T3, Free T4, and TSH In Healthy Children},
  author={M. Cioffi and P. Gazzerro and M. Vietri and R. Magnetta and A. Durantey and A. D'auria and G. Puca and A. Molinari},
  journal={Journal of Pediatric Endocrinology and Metabolism},
  year={2001},
  volume={14},
  pages={1635 - 1640}
}
OBJECTIVE It is rare that manufacturers report age-related FT3, FT4 and TSH normal ranges in healthy children. STUDY DESIGN Using a solid phase time-resolved fluoroimmunometric method, we determined serum FT3, FT4 and TSH in 3,360 healthy children, age 2-16 years, that we grouped into two age ranges (2-7 yr and 9-16 yr). RESULTS Boys' and girls' mean serum thyroid hormone values substantially overlap in all age groups. In the age range 2-7 yr, FT3, FT4 and TSH values were 0.10-0.67 ng/dl… Expand
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