haemoglobin | 134 g/l (130–180) |
white cell count | 12.3 × 109/l (4.0–11.0) |
neutrophil count | 8.4 × 109/l (1.5-7.0) |
serum creatinine | 169 μmol/l (60–110) |
serum urate | 0.42 mmol/l (0.23–0.46) |
rheumatoid factor | 68 kIU/l (<30) |
synovial fluid | negatively birefringent crystals |