Monitoring and Evaluation of Thyroid Function Tests, Serum Electrolytes and Creatinine Levels Before and After 131I Therapy.

Background: Serum electrolytes, Creatinine, and thyroid profile play an important role in 131I treated patients of thyroid disorders.

Objectives: To determine the effect of radioactive iodine (131I) on renal parameters, serum electrolytes and the correlation among TFT'S, creatinine, and chloride levels before and after I131 treatment in thyroid disorders.

Methods: The study was performed on 55 patients of thyrotoxicosis with age ranging from 16-65 years (mean age= 41±14years and BMI=24.