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Feasibility of using real-world free thyroxine data from the US and Europe to enable fast and efficient transfer of reference intervals from one population to another. [PDF]

open access: yesPract Lab Med
Kurka H   +11 more
europepmc   +1 more source

A REAPPRAISAL OF THE FREE THYROXINE INDEX

Lancet, The, 1981
The usefulness of the routine measurement of the free thyroxine index as opposed to that of total thyroxine only has been examined by analysis of 803 requests for thyroid function tests in adults. In only 2.7% of cases would a significantly different decision on the interpretation and the need for supplementary testing have been made by considering the
S R Jones, D J Goldie, D J Goldie
exaly   +3 more sources

The “free thyroxine index”

Irish Journal of Medical Science, 1969
The direct estimation of serum thyroxine iodine (T4I) and the uptake of125I labelled thyroxine from serum by anion exchange resin (R.U.R.) can both be used independently to assess thyroid status. The results from these two tests can be combined to give a free thyroxine index (F.T.I.) which is believed to be proportional to the concentration of free ...
P P, Smyth, D K, O'Donovan
openaire   +2 more sources

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