IA-2 Antibody

Test Code

37933

Alias/See Also

Insulin Ab-2
Islet Cell Antigen 512 Antibodies
Tyrosine Phosphatase
ICA 512 Antibody
Insulinoma-associated Protein 2
GAD-65
IA2
LabCorp 141531

CPT Codes
86341

Preferred Specimen

1 mL serum

Minimum Volume

0.5 mL

Transport Temperature

Frozen

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 30 days

Methodology
Enzyme Linked Immunosorbent Assay (ELISA)

Setup Schedule

Tuesday, Thursday, Saturday Morning
Report available: 4 Days

Report Available

4-6 days

Reference Range

<5.4 U/mL

Clinical Significance

Type 1 Diabetes Mellitus is characterized by lymphocytic cell infiltration of the beta-cells of pancreatic islets. Measurement of IA-2, GAD-65, ICA-512, and Insulin Antibody is a highly sensitive means to assess risk and predict onset of Type I diabetes.

Performing Laboratory

Quest Diagnostics Nichols Institute-San Juan Capistrano, CA

33608 Ortega Highway

San Juan Capistrano, CA 92675-2042

Last Updated: July 1, 2021

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.