Laboratory Services
Glutamic Acid Decarboxylase (GAD65) Antibody Assay, Serum
Print this pageUpdated Test Information:
| Test Description |
Glutamic Acid Decarboxylase (GAD65) Antibody Assay, Serum
|
|
|---|---|---|
| Synonym(s) |
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, Ataxia |
|
| Test ID |
GD65S
|
|
| General Information |
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 |
|
| Container Type |
Red Top |
|
| Specimen Type |
Serum |
|
| Alternate Specimen Type |
SST |
|
| Specimen Requirements |
1.5 mL |
|
| Specimen Collection / Processing Instructions |
Centrifuge and aliquot into a plastic vial |
|
| Minimum Sample Volume |
1 mL |
|
| Stability |
Refrigerated (preferred) 28 days |
|
| Unacceptable Specimen Conditions |
Gross hemolysis, Gross Lipemia, Gross icterus |
|
| Methodology |
Radioimmunoassay (RIA) |
|
| Estimated TAT |
3 to 6 days |
|
| Testing Schedule |
Monday through Sunday |
|
| Retention |
28 days |
|
| CPT Code(s) |
86341 |
|
| Reference Range |
< or =0.02 nmol/L Reference values apply to all ages. |
|
| STAT Orderable (Y/N) |
no |
|
| Performing Lab |
Mayo |
|
| LOINC Code(s) |
30347-9 |
