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International Journal of Clinical Biochemistry and Research


Establishment of reference intervals of thyroid function test in healthy individuals


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Author Details : Simbita Marwah, Mihir Mehta, Charmi Raval, Amit Trivedi, N. Haridas

Volume : 5, Issue : 2, Year : 2018

Article Page : 257-262


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Abstract

Aim: The central role of the laboratory is to aid the clinician, in interpreting observed values, by providing relevant reference values. To prevent ambiguities inherent in the term normal values, a laboratory should establish its own reference limits. Therefore, the current study was aimed at establishing the reference range of Thyroid function test in healthy population.
Study design: This was a retrospective cross sectional study on 1000 healthy individuals above 18 years of age, attending the routine health check-up.
Materials and Methods:  Partitioning was done according to age and sex, inclusion and exclusion criteria were applied and T3, T4 and TSH levels were estimated on the study group.
Results:  The values of T3 and T4 obtained were (mean and reference interval in nmol/L)  1.85 (1.15-2.55) and 100.58(57.35-143.81)respectively for males and 1.87(1.07-2.55) and 110.49(62.46-158.52) respectively for females. Similarly, TSH values were 1.23 (0.37-5.19) mIU/L and 1.37(0.27-5.63) mIU/L in males and females respectively.
Conclusion: We found that the value of serum Total T3 & serum Total T4 was higher as compared to the international values while that serum TSH was similar.

Keywords: Reference range, T3, T4, TSH

Doi : 10.18231/2394-6377.2018.0053

How to cite : Marwah S, Mehta M, Raval C, Trivedi A, Haridas N, Establishment of reference intervals of thyroid function test in healthy individuals. Int J Clin Biochem Res 2018;5(2):257-262

Copyright © 2018 by author(s) and Int J Clin Biochem Res. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (creativecommons.org)