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Test Code Billings Clinic: 8513 Insulin Autoantibodies (IAA), Serum

Performing Laboratory

Barbara Davis Center for Childhood Diabetes

Useful For

  • Autoantibody targeted to insulin; insulin is the only antigen thought to be highly specific for beta cells.
  • Detected in about 50% of type 1 diabetic children; not commonly detected in adults
  • IAA test does not distinguish between autoantibodies that target the endogenous insulin and antibodies produced against exogenous insulin.

Specimen Requirements

  • Submit 2 mL of serum from a plain red top or red gel.
  • Allow blood to clot prior to centrifugation.
  • Transfer serum to a plastic pour off tube.
  • Send by overnight mail, refrigerated.
  • All tests must be accompanied by a Barbara Davis Childhood Diabetes Test Request (See Resources)

Reference Values

Normal:      < 0.011

Elevated:    > 0.013

Day(s) Test Set Up

Daily

 

Turn Around Time:  within 1 week

Test Classification and CPT Coding

86337