A 34-year-old woman presents to the physician for an 8-month history of increasing fatigue and irregular menses. She described her mood as low and has had decreased recent interest in social activities. Vitals are: temperature 98.6F, HR 55, RR 12, BP 120/80. BMI is 26. Serum total cholesterol is 300 mg/dL. Hepatic AST is 70 IU/L (NR 10-40). Creatine kinase is 200 U/L (NR 30-180). She is commenced on exogenous triiodothyronine. Which of the following combinations of serum findings is most likely to be seen following administration?
↑ T3; ↑ T4; ↑ TSH
↑ T3; ↑ T4; ↓ TSH
↑ T3; ↓ T4; ↑ TSH
↑ T3; ↓ T4; ↓ TSH
↓ T3; ↑ T4; ↑ TSH
↓ T3; ↑ T4; ↓ TSH
↓ T3; ↓ T4; ↑ TSH
↓ T3; ↓ T4; ↓ TSH
