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Complement Component C1q
Message*Bring to processing ASAP to be spun down within 1 hour.
Test Code
981
Alias/See Also
LAB00477
CPT Codes
86160
Preferred Specimen
1 mL serum
Minimum Volume
0.1 mL
Other Acceptable Specimens
Plasma collected in: EDTA (lavender-top) tube or PPT (white-top) tube
Instructions
Separate serum within one hour of draw time and refrigerate.
Can be drawn in a gel barrier tube but needs to be separated within one hour from time drawn.
Can be drawn in a gel barrier tube but needs to be separated within one hour from time drawn.
Transport Container
Transport tube
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 4 days
Refrigerated: 10 days
Frozen: 29 days
Refrigerated: 10 days
Frozen: 29 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic • Received room temperature
Methodology
Radial Immunodiffusion (RID)
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Mon, wed
Report Available
4 days
Reference Range
5.0-8.6 mg/dL
Clinical Significance
The complement system is critical to the inflammatory response. C1q concentrations may be decreased in patients with acquired angioedema, immune complex induced vasculitis, and concurrent low concentrations of C1 inhibitor, carcinoma, or lymphoma.
Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
33608 Ortega Highway |
San Juan Capistrano, CA 92675-2042 |