The early follow-up of 131I-treatment of thyrotoxicosis.

No general agreement exists concerning the optimal time for the first control of patients treated with 131I for thyrotoxicosis. Ten consecutive cases were followed clinically, and current laboratory thyroid tests were frequntly performed during a 14 week period to point out the optimal control time and the best setup of control parameters for such patients. It is concluded that clinical examination, supplied with T4, T3, T3-test, and TSH determinations 12--14 weeks after therapy seems rational as a first step in the lifelong follow-up of these patients.