Goiter in a Patient with Pulmonary Arterial Hypertension Treated with Epoprostenol

Table 3

Thyroid studies.

T4	1.4 µg/dL (4.5–11.7 µg/dL)
Free T4	1.0 mg/dL (0.9–1.7 ng/dL)
TSH	0.34 µIU/mL (0.27–4.20 µIU/mL)
Thyroglobulin antibody	Undetectable
Thyroglobulin serum	147.6 ng/mL (1.3–31.8 ng/mL)
Thyroperoxidase antibody	70.4 IU/mL (0.0–9.0 IU/mL)