A Case of Refractory Hypothyroidism due to Poor Compliance Treated with the Weekly Intravenous and Oral Levothyroxine Administration

Figure 4

Serum thyroid hormone and TSH levels after the oral administration of a single bolus of LT4 (1400 g). Eighteen days after the administration, serum FT4 and FT3 levels were 0.83 ng/dL and 1.5 pg/mL, respectively. Her serum TSH levels were 12.78 μIU/mL.