GLOMERULAR BASEMENT MEMBRANE ANTIBODY

Test Code

GBMAB

CPT Codes
83516

Preferred Specimen

1 Gold tube (gel separator)

Minimum Volume

1 mL

Other Acceptable Specimens

or 1 Red tube

Instructions

Centrifuge for complete separation of plasma/serum and red cells. See Specimen Container for appropriate sample type. Refrigerate until tested.

Specimen Stability

2-8°C up to 7 days; otherwise freeze at -20° or lower

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolyzed

Methodology
Multiplex Flow Immunoassay

Setup Schedule

M, T, W, Th, F, Sa, Sun

Clinical Significance

This test is useful for evaluating patients with rapid onset renal failure or pulmonary hemorrhage as an aid in the diagnosis of Goodpasture Syndrome which is characterized by lung hemorrhage, nephritis, and the presence of anti-GBM autoantibodies.

Performed By
Alverno Laboratories

Performing Laboratory
Alverno Central Lab
NIM2 (Immunology, Manual)

Last Updated: April 25, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.