Complement components C1q and C2
5 mL blood in plain tube.
The specimen should be placed on melting ice and transported immediately to the laboratory.
Immunoassay; functional assay.
|Reference Interval:|| |
Limited use in defining inherited or acquired deficiency.
Reduced or absent in complement consumption or deficiency. Deficiencies are strongly associated with SLE and other systemic rheumatic diseases.
Ruddy S. In: Rose NR et al eds. Manual of Clinical Laboratory Immunology. 5th ed. ASM Press 1997.
Wen L et al. Journal of Allergy and Clinical Immunology. 2004; 113: 585-93.