Concentrations of complement components and C1 esterase inhibitor
| Date | C3 (g/l) | C4 (g/l) | C1 esterase inhibitor (g/l) | C1q |
|---|---|---|---|---|
| Normal ranges: C3, 0.75–1.65 g/l; C4, 0.14–0.54 g/l; C1 esterase inhibitor, 0.15–0.35 g/l; C1q, 75–125%. | ||||
| May 2000 | 1.12 | 0.04 | 0.13 | 47% |
| November 2000 | 1.06 | 0.04 | 0.13 | |
| August 2001 | 1.25 | 0.15 | 0.16 | 95% |