C1q Binding Assay
0050301
Ordering Recommendation
Submit With Order
Mnemonic
C1Q
Methodology
Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed
Mon, Thu
Reported
1-8 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
 
Collect
Plain red.  
Specimen Preparation
Let stand on clot for two hours. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.3 mL) If ordered in conjunction with a Raji Cell Assay, transfer two 1 mL aliquots of serum to individual ARUP Standard Transport Tubes.  
Storage/Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.  
Unacceptable Conditions
Non-frozen specimens.  
Remarks
 
Stability
After separation from cells: Ambient: 2 hours; Refrigerated: Unacceptable; Frozen: 2 weeks (avoid repeated freeze/thaw cycles)  
Reference Interval
Less than 4 µgE/mL is considered negative for circulating complement binding immune complexes.
Interpretive Data
Circulating immune complexes may be found without any evident pathology and positive results do not necessarily implicate the immune complex in a disease process.
Note
CPT Code(s)
86332
Components
Component Test Code*Component Chart Name
0050301C1Q Binding Assay
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Cross References
  • immune complex assay
  • Circulating complement binding immune complex
  • Circulating Immune Complex Detection
  • Immune Complex Assay