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Test Name:
C-1-Esterase Inhibitor
- SBMF No:
44285 - Performance Lab Name:
ARUP Laboratories - Test Mnemonic:
C1EST INH - ABN:
Not required - CPT Code:
86160 - LOINC Code:
4477-6 - Ref Lab Test No:
0050140 - Also Known As:
C1 Esterase Inhibitor Antigen, Serum
C1 Inactivator, Quantitative
C1 Inhibitor (C1INH) - Also See:
44223 C1-Esterase Inhibitor, Functional - Spec Type:
Serum - Spec Container:
Gold top (SST) or red top (serum) tube - Pref Vol:
1.0 mL - Min Vol:
0.4 mL - Fasting:
No - Spec Collect:
Routine venipuncture - Spec Process:
Clot 30 minutes
Promptly centrifuge 15 minutes
Immediately transfer serum to separate plastic tube and freeze - Spec Store Transport:
Frozen - Spec Stability:
After separation from cells:
2 hours room temperature (20-30°C)
Refrigerated (2-8°C): Unacceptable
2 weeks frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Non-frozen sample - Spec Remarks:
CRITICAL FROZEN – Separate samples must be submitted when multiple tests are ordered
Separate serum from cells ASAP - Methodology:
Quantitative Nephelometry - Clinical Significance:
Refer to:
- Reference Range:
21-39 mg/dL - Day Run:
Sun, Wed, Fri - Time Reported:
2-5 days - Test Type:
ENZYME
