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HelpTest Code C1ES C1 Esterase Inhibitor Antigen, Serum
Specimen 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.
Children's Mercy Hospital
Note:
CMH COLLECTION: 2 mL in red gel vacutainer
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 |
Useful For
Diagnosis of hereditary angioedema
Monitoring levels of C1 esterase inhibitor in response to therapy
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | Reject |
| Gross icterus | OK |
Day(s) Performed
Monday through Friday
Report Available
2 to 5 daysReporting Name
C1 Esterase Inhibitor Antigen, SReference Values
19-37 mg/dL
Method Name
Nephelometry
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
83883