case_images: PMC8056563_01
case_images: Free thyroxine (T4) and thyroid-stimulating hormone (TSH) trend.
case_images: 10.1177_23247096211009412-fig1.jpg
case_images: PMC8056563_01_10.1177_23247096211009412-fig1.jpg
case_images: fig1-23247096211009412
case_images: 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).