Sign in →

Test Code LAB727 Glomerular Basement Membrane Antibodies, IgG, Serum

Additional Codes

Mayo Test Code: GBM

Reporting Name

Glomerular Basement Membrane IgG Ab

Useful For

Evaluating patients with rapid onset renal failure or pulmonary hemorrhage, as an aid in the diagnosis of Goodpasture syndrome

Method Name

Multiplex Flow Immunoassay

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type


Specimen Required


Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 0.5 mL

Specimen Minimum Volume

0.35 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 21 days
  Frozen  21 days

Reject Due To


Mild OK; Gross reject


Mild OK; Gross reject


Mild OK; Gross OK



Reference Values

<1.0 U (negative)                     

≥1.0 U (positive)

Reference values apply to all ages.

Day(s) and Time(s) Performed

Monday through Friday, Sunday; 11 a.m.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
GBM Glomerular Basement Membrane IgG Ab 31254-6


Result ID Test Result Name Result LOINC Value
GBM Glomerular Basement Membrane IgG Ab 31254-6

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.