Glutamic Acid Decarboxylase Antibody, CSF


Sunquest Code:GAD65C  
Epic Code:LAB5839Epic Name:Glutamic Acid Decarboxylase, CSF
Synonyms:GAD65; 65K Antibody; Beta Cell Antibody
Methodology:Immunoprecipitation assay
CPT Code:86341
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 2-6 days.
Compliance:

This test was developed and its performance characteristics determined by Laboratory Medicine and Pathology, Mayo Clinic. This test has not been cleared by the U.S. Food and Drug Administration.



Collection Instructions

Specimen:CSF
Optimal Volume:1 mL
Container:Sterile tube (Plastic leakproof container, sterile)
Causes for Rejection:Gross hemolysis, lipemia or icterus


Processing and Shipping

Specimen Processing:Centrifuge if RBC present. Aliquot 1 mL into standard treansport tube. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Lab Sendouts  (Mayo)
Referral Lab number:GD65C


Interpretive

Reference Range:0.02 nmol/L or less
Use:Possible use in evaluating patients with stiff-man syndrome, autoimmune cerebellitis and other acquired central nervous system disorders affecting gabaminergic neurotransmission.


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