TABLE 3.

Clinical course of a patient with type 2 amiodarone-induced thyrotoxicosis

Clinical course	Free thyroxine, pmol/L*	TSH, mU/L†
Preprednisone‡	53	<0.02
Preprednisone§	49.9	<0.02
After 1 month of prednisone	34	<0.02
After 2 months of prednisone	28.5	0.04
After 3 months of prednisone (final day of prednisone)	15.3	2.7
1 month after stopping prednisone	16.3	3.91
6 months after stopping prednisone	16.6	3.91
12 months after stopping prednisone	17.8	3.03

^*Normal range is 9 pmol/L to 25 pmol/L;

^†Normal range is 0.25 mU/L to 5 mU/L;

^‡Recent test by the cardiogist;

^§Examination after referral. TSH Thyroid-stimulating hormone