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Glomerular Basement Membrane Antibody (IgG)
Test Code257
CPT Codes
83520
Preferred Specimen
1 mL serum
Minimum Volume
0.3 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Tues, Thurs, Sat; Report available: 3-6 days
Limitations
Weakly positive results (5-30 EU/mL) may occur in patients who do not have antiglomerular basement membrane antibody-mediated disease.
Clinical Significance
Glomerular Basement Membrane Antibody is present in one fourth of patients with Goodpasture's syndrome. This syndrome consists of glomerulonephritis and pulmonary hemorrhage.
