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Thyroid laboratory results.
| Laboratory Test (metric units) | Twin A | Twin B | Reference Range |
|---|---|---|---|
| TSH: mIU/L (mcU/ml) | 0.013 (0.013) | 0.045 (0.045) | 0.4–4.2 (0.4–4.2) |
| Total T4: nmol/L (μg/dL) | 208.5 (16.2) | 202 (15.7) | 72–166 (5.6–12.9) |
| Total T3: nmol/L (ng/dL) | 6.47 (420) | 5.27 (342) | 1.26–2.77 (82–179) |
| TRAb: IU/L | 11 | 24 | ≤1.75 |
| TPO antibody: IU/mL | 353.3 | >1000.0 | 0.0–3.9 |
| Tg antibody: IU/mL | 2.4 | <1.8 | <4.0 |
