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C1EIF / FC1EQ-M
C1 ESTERASE INHIBITOR, FUNCTIONAL ASSAY, SERUM

Test Code C1EIF / FC1EQ-M 
Test C1 ESTERASE INHIBITOR, FUNCTIONAL ASSAY, SERUM 
Methodology Enzyme Immunoassay (EIA) 
Description Useful for diagnosing HAE and for monitoring response to therapy. 
Specimen Draw blood in a plain, red-top tube from a fasting patient. Spin down, separate from clot, and freeze 1.0 mL of serum in a plastic vial within 30 minutes. Send specimen FROZEN on dry ice. 
Reference Values > 67% normal (normal)
41 - 67% normal (equivocal)
< 41% normal (abnormal) 
Analytic Time 1 Day 
Day(s) Test Set Up Two times per week 
CPT Code(s) 83520