C1 Esterase Inhibitor Autoantibody
Test Code
INHA
Description
Collect
Serum from a plain red top is the only acceptable sample type.
Gel barrier tubes are not acceptable.
Specimen Preparation
Allow blood to clot at room temp for 20 to 30 minutes. Centrifuge to thoroughly remove cells and immediately transfer cell-free serum to a fresh tube and freeze the cell-free serum on dry ice or at -70°C.
Preferred volume: 1 mL
Pediatric Collection
Minimum volume: 250 µL serum, frozen
Unacceptable Conditions
Thawed specimen.
Storage Transport Temp
Send frozen serum Priority Overnight via FedEx and in a well insulated container on dry ice.
Stability
Frozen at -70°C: 1 year
Methodology
ELISA
Reported
up to 4 weeks
Department
Complement LabSynonyms
Angiodema (Autoantibody to C1-inhibitor);Complement (Autoantibody to C1-inhibitor);Hereditary Angiodema (Autoantibody to C1-inhibitor);ELISA (Autoantibody to C1-inhibitor);Acquired Angiodema (Autoantibody to C1-inhibitor);C1INH (Autoantibody to C1-inhibitor);CEIAP
Related Tests
Acquired Angiodema: C1-INH function (CEIF), C1-INH level (CEIQ), C1q level (C1Q), C4 level (C4)
Reference Interval
< 39.0 % of STD.
CPT Code
83520