C1 Esterase Inhibitor
Test Mnemonic
C1EST
CPT Codes
- 86160 - QTY (1)
LOINC ®
4477-6
Includes
- C-1-Esterase Inhibitor
Performing Laboratory
ARUP
FDA Category
Analyte Specific Reagent
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | SST (Gold) | Refrigerated | Separate serum from cells within 2 hours of collection. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | Unacceptable |
| Frozen | 1 month |
| Refrigerated | 2 weeks |
Days Performed
Sun - Sat
Turnaround Time
2 - 5 days
Methodology
| Name | Description |
|---|---|
| Turbidimetry (TURB) |
Reference Range
| C1 Esterase Inhibitor | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | 21-38 | mg/dL |
Special Info
Grossly hemolyzed or lipemic specimens will be rejected.
Clinical Info
Deficiency of C1 esterase inhibitor is present in hereditary angioneurotic edema.