PMC8056563_01
Free thyroxine (T4) and thyroid-stimulating hormone (TSH) trend.
10.1177_23247096211009412-fig1.jpg
PMC8056563_01_10.1177_23247096211009412-fig1.jpg
fig1-23247096211009412
Within a week, patient's free T4 decreased to 1.36 ng/dL (0.8-1.7 ng/dL), and TSH then became detectable at 0.007 ulU/mL (0.27-4.2 ulU/mL) (Figure 1).