Test directory: C1 Inhibitor, Functional

Ordering Code 4709
Test Name C1 Inhibitor, Functional
Alias C1 Esterase Inhibitor, Functional
Preferred Specimen Serum
Preferred Container Plain (Red)
Other Specimen/Container None
Optimum Volume 1 mL
Collection Instructions Do Not use SST or PST
Clot red top tube for 45 minutes, separate & freeze immediately after processing.
Handling Instructions Separate and freeze immediately
Strict frozen. Cannot thaw.
Transport Requirements Oahu: Frozen
Airline: Frozen
Specimen Stability Frozen: 1 Month
Rejection Criteria Gel barrier tube, Ambient, Refrigerated, Thawed, Pleural
Fluid, Gross Lipemia
Avail. Stat NO
Analytic Time Up to 7 Days
Methodology Enzyme Immunoassay
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
C1 Inhibitor, Functional ALL See report.