Test ID: GD65S    
Glutamic Acid Decarboxylase (GAD65) Antibody Assay, Serum

Useful For Suggests clinical disorders or settings where the test may be helpful

Assessing susceptibility to autoimmune (type 1, insulin-dependent) diabetes mellitus and related endocrine disorders (eg, thyroiditis and pernicious anemia)


Distinguishing between patients with type 1 and type 2 diabetes


Confirming a diagnosis of stiff-man syndrome, autoimmune encephalitis, autoimmune ataxia, brain stem encephalitis, autoimmune epilepsy, autoimmune myelopathy; titers generally greater than or equal to 20.0 nmol/L

Method Name A short description of the method used to perform the test

Radioimmunoassay (RIA)

NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

GAD65 Ab Assay, S

Aliases Lists additional common names for a test, as an aid in searching

64K Antibody
Anti-GAD Antibodies
Anti-Glutamic Acid Decarboxylase Ab
Beta Cell Antibody
GAD65 Antibody Assay
Glutamate Decarboxylase Antibodies (GAD65)
Islet cell antibody
Pancreatic Islet Cell Ab
Stiffman Syndrome
Stiff person