Specimen Requirements

Title

Glutamic Acid Decarboxylase-65 Antibody (GAD)

Specimen Requirement

Collect SST/1.0 mL serum, after 30 minutes of clotting, promptly centrifuge and send.

Methodology

Enzyme Linked Immunosorbent Assay (ELISA)

Stability

Room temp: 7 days, Refrigerated: 14 days, Frozen: 60 days

Reference Range

By Report*

Turnaround

3-5 days, set up Sunday to Friday

Clinical Use

Glutamic acid decarboxylase (GAD-65) antibody is useful to diagnose insulin dependent diabetes mellitus [Type I diabetes (autoimmune-mediated diabetes)] to assess risk for development of Type I diabetes, to predict onset of Type I diabetes, and risk of development of related endocrine disorders, e.g., thyroiditis.

Test Code

GADW