Test Overview
Test Methodology
Nephelometry
Test Usage
Diagnosis of congenital and acquired C1-inhibitor deficiency.
Reference Range *
12 - 22 mg/dL
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Monday - Friday
Analytic Time
2 - 4 days
Soft Order Code
C1Q
MiChart Code
C1q Complement, Antigen
Synonyms
- Complement C1Q
- First Component of Complement (subunit C1q)
Laboratory
Sendout
Reference Laboratory
Mayo C1Q (8851)
Section
Special Testing
Specimen Requirements
Collection
Collect blood in a red top or SST tube. A fasting specimen is preferred but not required. Centrifuge, aliquot serum into plastic vial and refrigerate.
Normal Volume
1 ml serum
Minimum Volume
0.5 ml serum
Storage Temperature
Refrigerated preferred, ambient or frozen acceptable
Additional Information
Test sent to Mayo Medical Laboratories.
Billing
CPT Code
86160
Fee Code
20085
LOINC
4478-4
NY State Approved
No