This very inexpensive method of estimating T3 uptake, already described (Walther, 1971), uses only 0·1 ml of patient's serum and discriminates between thyrotoxicosis and myxoedema much better than the resin sponge method. It can readily be mechanized and the `free thyroxine index' derived has normal limits of 3·0 to 8·0.
Statistics from Altmetric.com
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.