HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Nusynowitz, M. L. Articles by Benedetto, A. R. Search for Related Content PubMed PubMed Citation Articles by Nusynowitz, M. L. Articles by Benedetto, A. R.

Calculation of an Estimate of Thyroxine-Binding Globulin Capacity

William Beaumont Army Medical Center, El Paso, Texas

Correspondence: For reprints contact: Col. M. L. Nusynowitz, P.O. Box 70014, William Beaumont Army Medical Center, El Paso, Texas 79920.

ABSTRACT

An estimate of the serum thyroxine-binding globulin (TBG) may be computed from determinations of serum thyroxine and triiodothyronine uptake. A general equation for this computation is presented and a computer program for the calculation of the estimating parameters is discussed. With these methods, the regression equation for the calculated TBG and the observed TBG is the line of identity, and the correlation coefficients from determinations on data from two laboratories were +0.88 and +0.96. The calculated TBG may be used as a screening test for abnormalities of thyroxine binding protein and as an aid in the proper interpretation of thyroid function studies.