Normal reference interval for thyrotropin response to thyroliberin : dependence on age, sex, free thyroxin index, and basal concentrations of thyrotropin
We measured the thyrotropin response (delta TSH) to 200 micrograms of thyroliberin in 131 subjects without thyroid dysfunction or other disease and with basal values for thyroid function that were within the normal reference intervals for our laboratory. By univariate and multivariate statistical methods we found delta TSH to be significantly influenced by the basal concentration of thyrotropin (T