Abstract
The thyroid function test with ^<131>I-triiodothyronine resin sponge uptake is now being used in the diagnosis of various thyroid diseases. The test pracedure is extremely simple and safe compared with other thyroid function tests. The resin sponge washing apparatus was devised to make the resin sponge wash more easily during the process of the test procedure. The results obtained were satisfactory. The construction, function and results of washing are as follows.
