The Thyroid Peroxidase Antibody (TPO) test is used to diagnose thyroid diseases separate from thyroid disorders.
The TPO test is used to detect diseases such as Graves Disease, autoimmune thyroiditis, Addison’s Disease, endemic goiter, insulin-dependent diabetes mellitus, polyendocrine auto-immunopathies and Hashimoto’s Disease.
Elevated levels (significant) may indicate Graves Disease or Hashimoto thyroiditis. Slightly elevated levels may be found in those who who have Type 1 Diabetes, anemia or rheumatoid arthritis. Non-existing or a negative test means no autoimmune thyroid conditions exist. However, if symptoms persist it may mean that autoantibodies were not present at that time and a repeat of testing may need to occur in the future.
Recommended with Thyroid Peroxidase Antibody
Is Fasting Required? No
More Information: http://www.questdiagnostics.com/testcenter/TestDetail.action?ntc=5081