C3d Immune Complexes
Raji cell, Quantitative
For the measurement of C3d-bound circulating immune complexes (CIC) present in human plasma or serum.
Additional Test Information:
The importance of circulating immune complexes, and their relationship to various diseases, has been the subject of study for many years. Formation of immune complexes is a protective and usually benign process of a normally functioning immune system. CIC are removed from circulation by a number of complex biochemical, enzymatic, and cellular processes. Key to all of these, however, is the complement system.
Serum or plasma, frozen
Red-top tube or gel-barrier tube; lavender-top (EDTA) tube is also acceptable.
Transfer specimen to a plastic transport tube before freezing. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
Freeze at -70°C or store on dry ice within six hours of collection. Specimen is stable for 14 days if stored at -70°C. Storage of specimens at -20°C will yield erroneous results.
Specimen not received frozen on dry ice
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