Complement Receptor Deficiency Workup

Updated: Apr 13, 2021
  • Author: Robert A Schwartz, MD, MPH; Chief Editor: Dirk M Elston, MD  more...
  • Print

Laboratory Studies

Tests for CD35 and CD21 markers for receptors CR1 and CR2 are usually not performed in patients with SLE or other autoimmune disorders because their reduction is more a result of active disease than a cause of the disease.

CD11a/18, CD11b/18, and CD11c/18 markers can be used to identify CR3 and CR4 deficiencies in the leukocyte adhesion deficiency syndrome.

Other laboratory tests may be ordered, on the basis of the associated or underlying disease.