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Test Code TPOAB Thyroid Peroxidase Antibody, LAB858


Competitive Immunoassay using Chemiluminescence

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements


Preferred: Gold-top serum gel tube

Acceptable: Plain Red-top tube, Green-top (heparinized) tube, or lavender-top (EDTA) tube 

Specimen Volume: 180 uL of serum or plasma

Stability: Do not use samples that have been stored at room temperature for longer than 8 hours. Store specimens at 2-8ºC for 48 hours or for longer storage, place in freezer at ≤20ºC.

Collection Instructions: Allow samples to clot adequately before centrifugation.  Samples should be free of fibrin or other particulate matter before placing samples on the system. Avoid hemolyzing specimen during collection.




Reference Values

0-59 U/mL

Day(s) Test Set Up

Monday through Friday

Test Classification and CPT Coding


Useful For

The measurement of autoantibodies against thyroid peroxidase is useful in identifying patients with autoimmune thyroid disease.