The serial laboratory tests
| Day 1 (at presentation) | Week 4 | Normal range | |
|---|---|---|---|
| TSH, mIU/L | 0.079 | 3 | 0.27–4.20 |
| fT4, pmol/L | 27.8 | 15 | 12–22 |
| CRP, mg/L | 303.5 | 2.4 | <5.0 |
| WBC, × 109/L | 21 | 9.6 | 4–10 |
| Neutrophils, × 109/L | 11.2 | 5.4 | 2.0–7.0 |
CRP = C-reactive protein; fT4 = Free T4; TSH = thyroid-stimulating hormone; WBC = white blood cells.