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Normative Data for Thyroid Stimulating Hormone for Screening of Congenital Hypothyroidism: Correspondence

  • Siddhnath SudhanshuEmail author
Correspondence
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To the Editor: I have read the article entitled “Normative data for thyroid stimulating hormone for screening of congenital hypothyroidism” published in November 2018 issue of IJP [1]. I congratulate the authors for their successful study and publication of useful and long awaited data. Additionally, I wish to contribute to this remarkable data by highlighting a few important issues from a reader’s point of view.

Firstly, the thyroid stimulating hormone (TSH) value from a filter paper assay can be expressed in both whole blood units and serum units. In this article, the authors have mentioned TSH cut-offs for a heel prick screen sample on filter paper, for recall of the baby for further action, as 10 mIU/L. Though I think they mean 10 mIU/L whole blood units (i.e., 22 mIU/L serum units); it is not mentioned clearly anywhere in the manuscript. At the present time, most endocrinologists as well as pediatricians, obstetricians and physicians across the country relate to TSH in terms of...

Notes

Copyright information

© Dr. K C Chaudhuri Foundation 2019

Authors and Affiliations

  1. 1.Department of EndocrinologySanjay Gandhi Postgraduate Institute of Medical SciencesLucknowIndia

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