Preparation: No special preparation or fasting is required before the test.

Procedure: A blood sample is drawn from a vein, typically in the arm.

TheThe GAD-65 (Glutamic Acid Decarboxylase-65) Antibody test detects antibodies against the GAD-65 enzyme, which is involved in insulin production in the pancreas. This test is primarily used to help diagnose autoimmune conditions such as Type 1 diabetes and, in some cases, certain neurological disorders like Stiff-Person Syndrome.