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Table 3 Complement and C1 EST IHN autoantibody profile

From: Case report presenting the diagnostic challenges in a patient with recurrent acquired angioedema, antiphospholipid antibodies and undetectable C2 levels

Antibodies

Result

Reference range

C1Q autoantibody

3

[< 4.2]% of STD

C1 EST IHN—autoantibody free IgG

25.4

[0.89–39.1]% of STD

C1 EST IHN—autoantibody bound IgG

3

[0.3–46.3]% of STD

  1. Labs performed at National Jewish Health, Denver, Colorado