Casandra
Casandra Test Code QD86344Version 1 (DRAFT)
Performing Lab
Complement Component C3c and C4c
Also known as: C4 & C3 Complements, C3 & C4 Complements
Clinical Use
Order TestUse
Complement C3c and C4c testing measures the levels of two key complement pathway proteins—C3 and C4—in the blood. Decreased levels of both C3 and C4 suggest activation of the classical complement pathway, whereas isolated C3 decreases may imply alternative pathway activation. These components are commonly used to monitor disease activity in systemic lupus erythematosus (SLE) and immune complex‑mediated vasculitis.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Immunoassay (Multiplex Protein Panel)
Biomarkers
Complement C3
ProteinQuantitation • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Complement C4
ProteinQuantitation • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
5 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
Not provided
Minimum Volume
Not provided
Patient Preparation
No test preparation required
Related Tests
Other tests from different labs that may be relevant
Complement Components 3 and 4
ARUP Laboratories
Complement C4, Serum
Mayo Clinic Lab
Complement C3, Serum
Mayo Clinic Lab
Complement C4
Labcorp
Complement Component 4
ARUP Laboratories
Complement Component 3
ARUP Laboratories
Lupus Monitor Profile
Labcorp
C4 Complement, Functional, Serum
Mayo Clinic Lab
C3 Complement (RDL)
Labcorp
C4 Complement (RDL)
Labcorp