C4 complement factor
C4 complement factor from Serum code C4C4PAutoimmundiagnostik
Komplement Lupus erythematodes
This test is requested by foreign doctors during a fertility procedure.
This test is done when complement deficiency or complement-binding immune reactions are suspected; Differential diagnosis of recurrent infections, glomerulonephritis, congenital angioneurotic edema or hemolytic anemia; Progression diagnostics in complement-activating autoimmune diseases such as SLE or Sjögren's
syndromeDifferential diagnosis of immune complex diseases, SLE, glomerulonephritis, C4 complement factor deficiency, recurrent infections, congenital angioneurotic edema, autoimmune hemolytic anemia. C4 complement factor is elevated in acute-phase reactions, which may mask complement deficiency.
reference values: 10 - 40 mg/dlMethod
: Turbidimetry (TURB)