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Test Code Billings Clinic: 8514 ZnT8 Autoantibodies (ZnT8), Serum

Performing Laboratory

Barbara Davis Center for Childhood Diabetes

Useful For

  • Confirm diagnosis of type 1 diabetes in symptomatic children and adults
  • Help predict development of type 1 diabetes in asymptomatic people at high risk

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:      < 0.021

Elevated:    > 0.030

Day(s) Test Set Up



Turn Around Time:  within 1 week

Test Classification and CPT Coding