Thyroid Peroxidase Test Index

Featured: Thyroid Peroxidase Test Main Article

The thyroid peroxidase test measures the level of an antibody that is directed against thyroid peroxidase (TPO). A presence of TPOAb in the blood reflects a prior attack by the body's immune system on thyroid tissue. A positive thyroid peroxidase test may signal chronic thyroiditis. Other autoimmune disorders, however, may have a positive TPOAb test.

Patient Discussions - Viewers share their comments

    Related Diseases & Conditions

    • Rheumatoid Arthritis (RA) Rheumatoid arthritis (RA) is an autoimmune disease that causes chronic inflammation of the joints, the tissue around the joints,...learn more »
      In This Article
      Rheumatoid Arthritis (RA) Article
      • Rheumatoid arthritis (RA) facts
      • What is rheumatoid arthritis (RA)?
      • Rheumatoid arthritis vs. osteoarthritis
      • What are rheumatoid arthritis causes and risk factors?
      • What are complications of rheumatoid arthritis?
      • What are rheumatoid arthritis symptoms and signs?
      • What tests do physicians use to diagnose rheumatoid arthritis?
      • What are the stages of rheumatoid arthritis?
      • What is the treatment for rheumatoid arthritis? What are types of rheumatoid arthritis medications?
      • "First-line" rheumatoid arthritis medications
      • "Second-line" or "slow-acting" rheumatoid arthritis drugs (disease-modifying anti-rheumatic drugs or DMARDs)
      • What are newer rheumatoid arthritis medical treatments?
      • Rheumatoid arthritis diet, exercise, therapy, home remedies, and alternative medicine
      • What about rheumatoid arthritis and pregnancy?
      • What is the prognosis for patients with rheumatoid arthritis?
      • Is there a cure for RA?
      • What are tips for living with rheumatoid arthritis?
      • Is it possible to prevent rheumatoid arthritis?
      • What specialists treat rheumatoid arthritis (RA)?
      • What new information about RA has come from the 2015 national meeting of the American College of Rheumatology?
      • What research is being done on rheumatoid arthritis?
      • Are there support groups for people with rheumatoid arthritis?
      • Where can people get additional information on rheumatoid arthritis?
    • Hypothyroidism Hypothyroidism is any state in which thyroid hormone production is below normal. Normally, the rate of thyroid hormone...learn more »
      In This Article
      Hypothyroidism Article
      • Hypothyroidism definition and facts
      • What is hypothyroidism?
      • Where is the thyroid located, and what are thyroid hormones?
      • What are the symptoms of hypothyroidism?
      • How do thyroid hormones work?
      • What causes hypothyroidism?
      • How is hypothyroidism diagnosed?
      • How is hypothyroidism treated?
      • What is subclinical hypothyroidism?
      • What's best for you?
    • Thyroid Disorders There are several types of thyroid disorders including hypothyroidism, hyperthyroidism, goiters, thyroid nodules, and thyroid...learn more »
      In This Article
      Thyroid Disorders Article
      • What are thyroid disorders?
      • What are the specific kinds of thyroid disorders?
      • Hypothyroidism
      • Hyperthyroidism
      • Goiter
      • Thyroid nodules
      • Thyroid cancer
      • How are thyroid disorders diagnosed?
      • What is the treatment for thyroid disorders?
      • Thyroid medications
      • Thyroid surgery
      • What is the outlook for thyroid disorders?
    • Sjogren's Syndrome Sjögren's syndrome is an autoimmune disease involving the abnormal production of extra antibodies that attack the glands and...learn more »
      In This Article
      Sjogren's Syndrome Article
      • Sjögren's syndrome facts
      • What is Sjögren's syndrome?
      • What causes Sjögren's syndrome?
      • What are risk factors for developing Sjögren's syndrome?
      • What are Sjögren's syndrome symptoms and signs?
      • How do health care professionals diagnose Sjögren's syndrome?
      • What is the treatment for Sjögren's syndrome? Will changes to one's diet improve Sjögren's syndrome symptoms and signs?
      • What are complications of Sjögren's syndrome?
      • Is it possible to prevent Sjögren's syndrome?
      • What is the prognosis for patients with Sjögren's syndrome?
      • What types of doctors treat Sjögren's syndrome?
      • Conclusion
    • Hashimoto's Thyroiditis Hashimoto's thyroiditis is the most common cause of hypothyroidism in the US. This conditions is caused by inflammation of the...learn more »
      In This Article
      Hashimoto's Thyroiditis Article
      • Hashimoto's thyroiditis facts
      • What is Hashimoto's thyroditis?
      • What causes Hashimoto's thyroiditis?
      • What are the signs and symptoms of Hashimoto's thyroiditis?
      • How is Hashimoto's thyroiditis diagnosed?
      • What is the treatment of Hashimoto's thyroiditis?
      • Is there a special diet for someone with Hashimoto's thyroiditis?
      • Is there a natural treatment for Hashimoto's thyroiditis?
      • Should I be concerned if I have Hashimoto's thyroiditis and want to become pregnant?
      • Can Hashimoto's thyroiditis be prevented?
      • What is the prognosis for someone with Hashimoto's thyroiditis?
    • Thyroid Nodules Thyroid nodules are the most common endocrine problem in the United States. The term "thyroid nodule" refers to any abnormal...learn more »
      In This Article
      Thyroid Nodules Article
      • Thyroid nodules facts
      • Introduction to thyroid nodules
      • What is the prevalence of thyroid nodules and cancer?
      • What are the symptoms of thyroid nodules?
      • What are the types of thyroid nodules?
      • What is a goiter?
      • How are thyroid nodules diagnosed?
      • What is the treatment for thyroid nodules?

Related FAQs, Doctor's & Expert's Views

Procedures & Tests

Tools & References

FDA Drug Labels on RxList.com


Terms related to Thyroid Peroxidase Test:

  • Antimicrosomal Antibody Test
  • Antithyroid Microsomal Antibody Test
  • Thyroid Peroxidase Autoantibody Test
  • TPO Test
  • TPOAb Test