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HelpC1 Esterase Inhibitor Antigen, Serum
Additional Codes
Orderable Codes:
| Epic Code | Atlas Code | Mayo Test ID | Order LOINC |
| LAB850 | C1EIPQ | C1ES | 4477-6 |
Reporting Name
C1 Esterase Inhibitor Antigen, SUseful For
Diagnosis of hereditary angioedema
Monitoring levels of C1 esterase inhibitor in response to therapy
Method Name
Nephelometry
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SerumSpecimen Required
Patient Preparations: Fasting preferred but not required.
Collection Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Immediately after specimen collection, place the tube on wet ice.
2. Centrifuge and aliquot serum into plastic vial.
3. Freeze specimen within 30 minutes.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Frozen (preferred) | 28 days | |
| Refrigerated | 28 days | ||
| Ambient | 72 hours |
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | Reject |
| Gross icterus | OK |
Reference Values
19-37 mg/dL
Day(s) Performed
Monday through Friday
CPT Code Information
83883
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| C1ES | C1 Esterase Inhibitor Antigen, S | 4477-6 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| C1ES | C1 Esterase Inhibitor Antigen, S | 4477-6 |