Thyroid Peroxidase Antibodies (TPO)

What this laboratory test evaluates

DetailsThyroid Peroxidase Antibodies (TPO) Test – This test is crucial for diagnosing various thyroid conditions, including endemic goiter, Graves' Disease, autoimmune thyroiditis, Addison's Disease, insulin-dependent diabetes mellitus, Hashimoto's Disease, and polyendocrine auto-immunopathies. It helps in understanding if the immune system is attacking the thyroid, which can lead to these conditions.

What patients is this test right for?This test is particularly useful for individuals showing symptoms of thyroid disorders or those with a family history of thyroid diseases.

Symptoms of thyroid disorders may include:• Unexpected weight changes
• Changes in energy levels or mood
• Irregular heart rate
• Swelling in the neck
• Feeling too hot or cold

What type of sample is required for this test?1 mL serum. A simple blood draw is needed.

Test Resources • https://education.questdiagnostics.com/faq/FAQ202
• https://www.questdiagnostics.com/healthcare-professionals/clinical-education-center/faq/faq290

Additional test information

This test is crucial for diagnosing various thyroid conditions, including endemic goiter, Graves' Disease, autoimmune thyroiditis, Addison's Disease, insulin-dependent diabetes mellitus, Hashimoto's Disease, and polyendocrine auto-immunopathies.

Collection and processing

• Sample type: Serum
• Fasting: No
• Estimated laboratory processing: Results should be available in 2 – 5 business days after the sample is collected

How Sunridge uses laboratory information

Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.

Before requesting this test

Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.