Complement Factor C4
Printer-friendly version
| Complement Factor C4 | |
| C4 C3/C4 C3C4 | |
| Serum (brown), Plasma (orange) | |
| 72hrs | |
| C4 determinations are indicated when assessing the course of hypocomplement conditions. C4 deficiency is a hallmark for the following conditions: C1 esterase inhibitor deficiency (which controls the classical pathway) known as Hereditary Angioedema (further investigation into C1IN is needed); cryoglobulaemia. (cryoglobulin testing and hepatitis serology may be indicated); and C4 shares an inverse correlation with anti-dsDNA antibodies in SLE. | |
| No known common methodological interferences. | |
| 0.14-0.54 g/L | |
| 4.6% | |
| 93.5% |
