title: Comparison of two triiodothyronine uptake techniques for the assessment of thyroid function.
abstract: The present study was designed to compare the Thyopac and Triosorb triiodothyronine uptake tests. A normal range was established for the two procedures. Neither test was affected by iodine-containing drugs or contrast media but abnormal results were obtained during pregnancy and in subjects receiving oestrogens. Both tests proved satisfactory in the diagnosis of hypo- and hyperthyroidism, giving results consistent with clinical assessment and with serum protein-bound iodine determinations. The Thyopac procedure was preferred for a number of reasons. It requires less plasma; it is slightly simpler and quicker and it is not time dependent.
mesh_terms: D004967:Estrogens / Q000494:pharmacology; D005260:Female; D006358:Hot Temperature; D006801:Humans; D006980:Hyperthyroidism / Q000175:diagnosis; D007037:Hypothyroidism / Q000175:diagnosis; D008722:Methods; D011247:Pregnancy; D013960:Thyroid Function Tests; D013997:Time Factors; D014284:Triiodothyronine / Q000378:metabolism
chemical_list: D004967:Estrogens; D014284:Triiodothyronine