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HelpTest Code 9619 Complement C1q, Serum
Additional Codes
| Mayo Test ID |
|---|
| C1Q |
Reporting Name
Complement C1q, SUseful For
Assessment of an undetectable total complement (CH50) level
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Diagnosing congenital C1 (first component of complement) deficiency
Diagnosing acquired deficiency of C1 inhibitor
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SerumSpecimen Required
Patient Preparation: Fasting for 12 hours
Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions: Centrifuge and aliquot serum into plastic vial
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 28 days | |
| Frozen | 28 days | ||
| Ambient | 21 days |
Reference Values
12-22 mg/dL
Day(s) Performed
Monday through Friday
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
86160
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| C1Q | Complement C1q, S | 4478-4 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| C1Q | Complement C1q, S | 4478-4 |
Report Available
2 to 5 daysMethod Name
Nephelometry
For BJH Laboratory Use Only
Laboratory Processing Instructions:
Call Laboratory Medicine resident at digital pager 314-747-1320 for approval before drawing the specimen.
BJH Core Laboratory will forward to the performing laboratory. Do not reject specimen if not received on ice. Laboratory Medicine resident approval is required before forwarding the specimen.