Ganglioside GD1b Antibody (IgM), EIA

Test Code

GD1b IgM

Quest Code

37439

Alias/See Also

GD1b IgM

CPT Codes
83520

Preferred Specimen

1 mL serum

Patient Preparation
Overnight fasting is preferred

Minimum Volume

0.5 mL

Transport Container

Plastic screw-cap vial

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 48 hours
Refrigerated: 14 days
Frozen: 30 days

Methodology
Enzyme Immunoassay (EIA)

Setup Schedule

SEt up: Mon, Wed nights; Report available: 4 days

Reference Range

≤1:800 titer

Clinical Significance

⁠⁠⁠⁠⁠⁠⁠Ganglioside GD1b Antibody IgM is associated with chronic sensory ataxia neuropathy, sometimes in association with fixed or transient extracellular or bulbar involvement.

Performing Laboratory

Quest Diagnostics Nichols Institute-San Juan Capistrano, CA

33608 Ortega Highway

San Juan Capistrano, CA 92675-2042

Last Updated: September 17, 2019

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.