Advanced Diagnostic Laboratories

Collect

Serum from a red top tube.  Mix sample thoroughly.

Specimen Preparation

For Serum specimens (INHLS):  Allow blood to clot at room temp for 20 to 60 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 serum, frozen

Pediatric Collection

Minimum volume: 250 µL, 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

Turbidimetry

Reported

Up to 4 weeks.

Department

Complement Lab

Synonyms

C1 inhibitor (C1-Esterase Inhibitor Level);Angiodema (C1-Esterase Inhibitor Level );Hereditary Angiodema (C1-Esterase Inhibitor Level );Radial Immuno Assay (C1-Esterase Inhibitor Level);C1INH (C1-Esterase Inhibitor Level );Complement (C1-Esterase Inhibitor Level);C1-INH (C1-Esterase Inhibitor Level);Acquired Angiodema (C1-Esterase Inhibitor Level );C1 Esterase Inhibitor Antigen;CEIQ

Related Tests

Acquired Angiodema, C1-INH function (CEIF), C1q level (C1Q), C4 level (C4), C1-inhibitor autoantibody (CEIAP)

Reference Interval

Human Male: 20-37 mg/dL
Human Female: 20-37 mg/dL