ARUP's Laboratory Test Directory

Raji Cell Immune Complex Assay : 0050302

Mnemonic: RAJI

Methodology: Quantitative Flow Cytometry
Performed: Tue
Reported: 2-9 days
Specimen Required: Collect: Plain red or serum separator tube.

Specimen Preparation: Let stand for 2 hours, then separate serum from cells within 1 hour and freeze immediately. Transport 3 mL serum. (Min: 0.5 mL)

Storage/Transport Temperature: CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.

Unacceptable Conditions: Non-frozen specimens. Specimens exposed to repeated freeze/thaw cycles.

Stability (collection to initiation of testing): Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 30 days
Reference Interval:
By report
Interpretive Data: Many autoimmune disorders, chronic infections and malignancies are associated with circulating immune complexes. Quantitation of immune complexes assists in staging immunologic disorders.

See Compliance Statement A: www.aruplab.com/CS
Note: Immune complexes bind to Raji Cells via their complement receptors.  The immunoglobulin portion of the immune complex is then detected by flow cytometry with anti-human IgG-FITC.
CPT Code(s): 86332
Cross References: C3d Circulating Immune Complexes (Raji Cell Immune Complex Assay), Immune Complex Assay (Raji Cell Immune Complex Assay)