also known as Complement C4 in Serum or Plasma
The Complement C4a Plasma Test helps check for inflammation or immune system problems and is useful for people with conditions like autoimmune diseases, chronic infections, or ongoing allergies.
| # | Retailer | Lab | Seen | Price | |
|---|---|---|---|---|---|
| 1 | Request A Testcheapest via Quest · seen 1mo ago | Quest | 1mo ago | $44 | order → |
| 2 | Instalab via Multi-lab (4) · seen today | Multi-lab (4) | today | $51 | order → |
| 3 | LifeExtension via Life Extension Lab Tests · seen today | Life Extension Lab Tests | today | $65 | order → |
| 4 |
| Fibrinogen Antigen | 6 retailers | $70 |
| Complement C3 | 6 retailers | $49 |
| CRP | 6 retailers | $5 |
| Interleukin-1 Beta | 4 retailers | $586.95 |
| Sedimentation Rate Blood Test, Westergren | 4 retailers | $3 |
| C-Reactive Protein, (CRP) Quantitative | 3 retailers | $39 |
| Inflammation Lab Panel | 3 retailers | $125 |
| Interleukin 6 Test | 3 retailers | $131.95 |
| — |
| today |
| $119 |
| order → |
| 5 | Walk-In Lab via LabCorp,Quest · seen today | LabCorp,Quest | today | $259 | order → |