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Insulin Autoantibodies (IAA) (Endocrine Sciences)

An Insulin Autoantibodies (IAA) test is used in diagnosis of Type 1 Diabetes.

Test Code: 141598

CPT Code: 86337

Also Known As: IAA, Insulin Antibodies

Methodology: Insulin-I125 binding capacity

Preparation: No fasting required. No radioactive isotopes should be administered 24 hours prior to venipuncture

Test Results: 6-9 days. May take longer based on weather, holiday or lab delays.


The presence of these autoantibodies provides early evidence of autoimmune disease activity, and their measurement can be useful in assisting the physician with the prediction, diagnosis, and management of patients with diabetes. Insulin is the only beta-cell specific autoantigen thus far identified.

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