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Glomerular Basement Membrane Antibody (IgG)
Test CodeLAB6022
Quest Code
257
Alias/See Also
GBMP, GBMAG
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.
Reference Range
<1.0 AI | No antibody detected |
≥1.0 AI | Antibody detected |
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.
Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130