Detect circulating immune complexes.
Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Saturday, Monday, and Thursday
New York DOH Approval Status
Plain red or serum separator tube (SST)
Allow complete clotting of red blood cells (up to 1 hour), then separate serum from cells within 30 minutes and freeze immediately. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.3 mL) If ordered in conjunction with a Circulating Immune Complex, C3 fragments, transfer TWO (2) 1 mL aliquots of serum to individual ARUP Standard Transport Tubes.
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
After separation from cells: Ambient: 2 hours; Refrigerated: Unacceptable; Frozen: 2 weeks (avoid repeated freeze/thaw cycles)
Effective February 19, 2019
Less than or equal to 3.9 µg Eq/mL
Less than or equal to 3.9 µg Eq/mL is considered negative for circulating complement binding immune complexes. Circulating immune complexes may be found without any evident pathology and positive results do not necessarily implicate the immune complex in a disease process.
|Component Test Code*||Component Chart Name||LOINC|
|0050301||Circulating Immune Complex, C1q Binding||27831-7|
- Circulating complement binding immune complex
- Immune Complex Assay