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Table 1 Laboratory results of the complement analyses

From: Fulminant systemic capillary leak syndrome due to C1 inhibitor deficiency complicating acute dermatomyositis: a case report

Parameter   Normal range
C3 Complement 14mg/dL 86–184mg/dL
C4 Complement <6mg/dL 10–40mg/dL
C1 Inhibitor 14mg/dL 18–32mg/dL
C1 Inhibitor activity 34% 70–130%