Table 1.

Trend of thyroid function tests during the patient's hospital course.

Lab value	Day 1 (day of admission)	Day 4	Day 7	Day 9	Day 15 (discharge)
TSH (μU/mL)	<0.006	<0.006	<0.006	<0.006	<0.006
Free T4 (ng/dL)	7.77	3.83	2.42	1.76	1.29
TSI (%)	464%
Anti-TPO (IU/mL)	1.3 (indeterminate)
Antithyroglobulin (IU/mL)	1.3 (negative)