[Total thyroxine level in human serum]

Eighteen healthy subjects and 42 patients with diseases of the thyroid gland were examined. Total thyroxin in serum was determined in all, by past StaT4 (Oxford laboratories) and according to the method of Murphy and Pattee, modified by Benotty and Peno. Thyroxin values obtained, by the two methods, were similar and correlated well with the subjects' clinical state. Certain advantages of paste StaT4 were established, making it more applicable in clinical practice as compared with the procedure of the modified method of Murphy and Pattee.