Home
HelpOrder Code AC1Q Anti-C1q Antibodies, IgG, Serum
Specimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Useful For
Evaluating patients with suspected anti-C1q vasculitis
Predicting renal involvement in patients with systemic lupus erythematosus
Detection of anti-C1q antibodies in serum
Method Name
Enzyme-Linked Immunosorbent Assay (ELISA)
Reporting Name
Anti-C1q Antibodies, IgG, SSpecimen Type
SerumSpecimen Minimum Volume
0.4 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 21 days |
| Frozen | 21 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Reference Values
<20 U/mL (Negative)
20-39 U/mL (Weak Positive)
40-80 U/mL (Moderate Positive)
>80 U/mL (Strong Positive)
Method Description
Testing for antibodies to C1q is accomplished using a laboratory-developed immunoassay.(Unpublished Mayo method)
Day(s) Performed
Wednesday
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
83520