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GAD65 Neurological Syndrome Antibody Test
Test Code92414
CPT Codes
86341
Preferred Specimen
2 mL serum
Minimum Volume
0.5 mL
Instructions
Serum must be separated from whole blood within 48 hours of collection.
Note: Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form.
Note: Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form.
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 72 hours
Refrigerated: 28 days
Frozen: 4 months
Refrigerated: 28 days
Frozen: 4 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Lipemic • Turbid • Bacterial contamination
Methodology
Enzyme Linked Immunosorbent Immunoassay (ELISA)
Setup Schedule
Set up: Mon, Wed, Fri; Report available: 7-10 days
Clinical Significance
Anti-GAD65 antibody is found in patients with Stiff-Person syndrome, subacute cerebellar ataxia, or encephalitis.
