C1q Complement Component Level
Order Code: C1Q
Epic Lab Code: LAB2763
Order Form: A-1a Miscellaneous Request or Epic Req
Commercial Mail-out Laboratory
6240 RCP
356-3527
Specimen:
Serum or Plasma
Collection Medium:
Red top tube
Alternate Collection Media:
Lavender top tube 3 mL (EDTA)
Minimum:
Adult minimum: 1.0 mL serum or plasma Pediatric minimum: 0.1 mL serum or plasma
Rejection Criteria:
Gross hemolysis, lipemic or SST or serum separtor tubes.
Delivery Instructions:
Mix well and place on wet ice. Keep on ice and deliver to laboratory immediately.
Specimen Instructions:
Separate red top per complement assay is required.
Analytic Time:
7 working days upon receipt at reference laboratory
Reference Range:
By report Low levels of C1q indicate either increased consumption (catabolism) or decreased synthesis.
Test Limitations:
C1q concentrations may be decreased in patients with acquired angioedema, immune complexed induced vasculitis, and concurrent low concentrations of C1 inhibitor, carcinoma, or lymphoma.
Methodology:
Radial Immunodiffusion
CPT Code:
86160
 
See also:
C1 Esterase Inhibitor, Protein Quantitation , Serum
 
See Additional Information:
Specimens Requiring Immediate Delivery