CSF, Glutamic Acid Decarboxylase (GAD65) Antibody

Synonyms

• GAD65 AB ASSAY, CSF
• GAD65CSF
• LAB11219

Cerner Name

GAD65 Ab Assay, CSF

Clinical Info

Possible use in evaluating patients with autoimmune encephalitis, stiff-person syndrome, autoimmune ataxia, autoimmune epilepsy, and other acquired central nervous system disorders affecting gabaminergic neurotransmission

Specimen Sources

CSF Reservoir Lumbar Puncture VP Shunt Aspirate

Specimen Types

Cerebrospinal Fluid

Specimen Volume

1.5 mL CSF (1.0 mL min)

Container

Sterile

Collection Instructions

Container/Tube: Sterile Vial
Specimen: 1.5 mL CSF (1 mL min)
Transport Temperature: Refrigerated
This test should not be requested in patients who have recently received radioisotopes, therapeutically or diagnostically, because of potential assay interference. The specific waiting period before specimen collection will depend on the isotope administered, the dose given and the clearance rate in the individual patient. Specimens will be screened for radioactivity prior to analysis. Radioactive specimens received in the laboratory will be held one week and assayed if sufficiently decayed or canceled if radioactivity remains.

Transport Instructions

Specimen Stability

3 Days Room Temperature
28 Days Refrigerated
28 Days Frozen

Methodology

Radioimmunoassay (RIA)

Days Performed

TAT: 4-7 Days

Performing Laboratories

Mayo Medical Laboratories

CPT

86341
LONIC Code 94359-7

PDM

1659067

Results

Result Interpretation

Forms