Glutamic Acid Decarboxylase Autoantibodies (GADA)
EPIC Test Name: GLUTAMIC ACID DECARBOXYLASE AB
Sample Volume: 1 mL
Minimum Volume: 0.1 mL (Repeat testing is not possible with this specimen volume.)
Storage: Centrifuge, separate and transfer the serum to a plastic vial. Ship specimens with a frozen cold pack for overnight delivery.
Stability (collection to time of analysis/testing):
- Refrigerated: 24 hours
- Frozen: 1 year
- Diagnosis of Type 1 Diabetes: The presence of autoantibodies against GAD65 (GADA) in patients with diabetes mellitus indicates the presence of autoimmune, type 1 diabetes.
- Prediction of Type 1 Diabetes: Autoantibodies against GAD65 (GADA) in an asymptomatic individual places the subject at increased risk for the development of type 1 diabetes.
Enzyme-linked immunosorbent assay (ELISA)
1 - 10 Business Days