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How is HAE diagnosed?

April 26, 2017diagnosed hae

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How is HAE diagnosed?

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A blood sample is taken to measure the level of C1-INH in the blood. C4 (another important blood protein) is often used in screening tests. A low level of C1-INH confirms a Type I HAE diagnosis. People with Type II HAE will have a normal C1-INH level, but an abnormal C1-INH functional level. No single test can diagnose Type III HAE.

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A blood sample is taken to measure the level of C1‐INH in the blood. C4 (another important blood protein) is often used in screening tests. A low level of C1‐INH confirms a Type I HAE diagnosis. People with Type II HAE will have a normal C1‐INH level, but an abnormal C1‐INH functional level. No single test can diagnose Type III HAE.