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Test Code Billings Clinic: 8214 OKT3 Antibody, Serum

Performing Laboratory

Laboratory of Immunogenetics and Transplantation


Enzyme-Linked Immunosorbent Assay (ELISA)

Specimen Requirements

Specimen must arrive at Laboratory of Immunogenetics and Transplantation within 24 hours of draw. Contact Billings Clinic Laboratory at 866-232-2522 to discuss the best specimen transport.


  • Draw blood in a plain, red-top tube(s).
  • Serum gel tube is not acceptable.
  • Spin down and send 1 mL of serum refrigerated.
  • Forward promptly.
  • Patient’s Social Security number is required on request form for processing.

Reference Values

Reference values are included with patient’s report.

Day(s) Test Set Up

Monday through Friday

Test Classification and CPT Coding