Ordering RecommendationRecommendations when to order or not order the test. May include related or preferred tests.
May be useful in detecting glomerular basement membrane (GBM) antibodies. Combined use of IFA Glomerular Basement Membrane Antibody, IgG by Multiplex Bead Assay and IFA (2008403) may improve diagnostic sensitivity for disease. If positive, may be useful for monitoring treatment response.
MnemonicUnique test identifier.
GBM-G ELIS
MethodologyProcess(es) used to perform the test.
Semi-Quantitative Multiplex Bead Assay
PerformedDays of the week the test is performed.
Sun-Sat
ReportedExpected turnaround time for a result, beginning when ARUP has received the specimen.
1-2 days
New York DOH Approval StatusIndicates test has been approved by the New York State Department of Health.
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Serum separator tube.
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL)
Storage/Transport Temperature
Refrigerated.
Unacceptable Conditions
Remarks
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference IntervalNormal range/expected value(s) for a specific disease state. May also include abnormal ranges.
19 AU/mL or less
Negative
20-25 AU/mL
Equivocal
26 AU/mL or greater
Positive
Interpretive DataBackground information for test. May include disease information, patient result explanation, recommendations, details of testing, associated diseases, explanation of possible patient results.
The presence of anti-glomerular basement membrane (GBM) antibodies by Multiplex Bead Assay, may aid in the diagnosis of Goodpasture syndrome. False positive results may occur due to reactivity against other chains of type IV collagen. If Multiplex Bead Assay is negative but there is strong suspicion for disease, renal biopsy may be indicated. A renal biopsy may also be essential in suspected Goodpasture disease with renal involvement, allowing diagnostic confirmation and assessment of renal prognosis.
No compliance statements are in use for this test.
NoteAdditional information related to the test.
Hotline History
N/A
CPT CodesThe American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
AliasesOther names that describe the test. Synonyms.
Anti-GBM Antibody
Anti-GBM Antibody-IgG
Anti-Glomerular Basement Membrane Antibody
Antiglomerular Basement Membrane Antibody-IgG
Basement Membrane Antibody
Basement Membrane, Glomerular Antibody
GBM Antibody
Glomerular Anti-Basement Membrane
Glomerular Basement Membrane Antibody, IgG by Multiplex Bead Assay
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