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C1 Inhibitor, Functional
Fifteen percent of patient with the inherited form of the disease will test within range.
C1 esterase is decreased in angioedema. The inherited form is usually diagnosed in the first two decades of life. The acquired form affects primarily adults with autoimmune or lymphoproliferative disorders. Approximately 15% of patients with hereditary angioedema have a normal concentration of the protein but it is dysfunctional.
Functional C1-Inhibitor,C1 Esterase
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Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
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