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HelpTest ID GP210 GP210 Antibody, IgG, Serum
Additional Testing Requirements
This is a first line test when primary biliary cholangitis is strongly suspected. This test should be ordered in conjunction with testing for mitochondrial antibodies (M2) (AMA / Mitochondrial Antibodies [M2], Serum), SP100 antibodies (SP100 / SP100 Antibody, IgG, Serum), and antinuclear antibodies (NAIFA / Antinuclear Antibodies, HEp-2 Substrate, 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 Serum
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Secondary ID
620726Useful For
Evaluating the risk of primary biliary cholangitis in anti-mitochondrial antibody (AMA)-negative patients by identification of gp210 antibodies
Estimating risk in AMA-positive patients with incomplete feature of disease
Specimen Type
SerumSpecimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 21 days |
| Frozen | 21 days |
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
| Heat-treated specimens | Reject |
Reference Values
Negative: ≤20.0 Units
Equivocal: 20.1-24.9 Units
Positive: ≥25.0 Units
Day(s) Performed
Tuesday
Report Available
2 to 8 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
83516
Forms
If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Test Request (T728) with the specimen.
Testing Algorithm
For information see First-Line Screening for Autoimmune Liver Disease Algorithm.