Table 1 Results of simultaneous thyroid function tests using different methods
From: Familial dysalbuminemic hyperthyroxinemia combined with Graves’ disease: a rare case report
FT4 | FT3 | TT4 | TT3 | TSH | Detection date and treatment | |
|---|---|---|---|---|---|---|
One-step method (Centaur) | 2.03 ng/dL (0.81–1.89) | 4.55 pg/mL (1.8–4.1) | 20.20 μg/dL (4.3–12.5) | 1.34 ng/mL (0.66–1.92) | 0.232 μIU/mL | Detected on 06/16/21, while on 1.43 μg/kg levothyroxine daily, 19 months following the second dose of the radioactive iodine |
Two-step method (Abbott) | 1.52 ng/dL (0.70–1.48) | 1.06 ng/mL (0.58–1.59) | 14.51 μg/dL (4.84–11.72) | 3.46 pg/mL (1.71–3.71) | 0.305 μIU/mL |