Specimen Requirements

Title

C1 ESTERASE INHIBITOR, FUNCTIONAL

Specimen Requirement

Draw blood in a red-top tube. Centrifuge, separate and send 1.0 mL serum (0.2 mL minimum) frozen in a screw-capped plastic vial. CRITICAL FROZEN. Sample may not be shared for other testing.

Methodology

Stability

Frozen: 2 months

Reference Range

By Report*

Turnaround

3-10 days Performed Tues

Clinical Use

C1 esterase inhibitor is decreased in hereditary angioneurotic edema; disease may be functional or quantitative.

Test Code

C1EI