Thyroid Peroxidase (TPO) Antibodies

This blood test measures the level of TPO (Thyroid Peroxidase) antibodies.

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Thyroid Peroxidase (TPO) Antibodies FAQ

What is a TPO test?

This test measures the level of Thyroid Peroxidase, or TPO antibodies, in the blood.

Why is a TPO test important?

Thyroid peroxidase is an enzyme involved in thyroid hormone production. TPO Antibodies slow or stop enzyme activity.

TPO Antibodies can cause hypothyroidism. These antibodies are frequently present in thyroid problems related to autoimmune diseases such as Graves' or Hashimoto's.

What type of specimen will I submit?

This Thyroid Peroxidase (TPO) Antibodies is a blood test.

Do I need to fast to take this test?

Fasting is not necessary.

How long does it take to get test results?

It typically takes 4 business days or less.

Accesa Labs does not provide medical advice, diagnosis or treatment. All users should consult with a medical provider for specific health concerns.

Last updated on November 10, 2017

Thyroid Peroxidase (TPO) Antibodies for $69

TPO Test - More Information

The TPO test, also known as a thyroid peroxidase antibody, TPO antibody, and TPO Ab test, is a lab test that measures the level of TPO antibodies in the blood.

Generally speaking, antibodies are components of the immune system that increase in number when the immune system perceives that it is fighting an infection. In that context, abnormal TPO antibody levels suggest that the body is attacking its own thyroid for some reason. While the immune system does produce other antibodies such as TSI that interfere with the normal functioning of the thyroid gland, TPO antibodies are the ones most frequently found.

In particular, the TPO blood test is helpful in evaluating people who are having symptoms that are suggestive of two specific thyroid disorders - Graves' disease and Hashimoto's thyroiditis. Suspicion of one of these infrequent conditions usually occurs after identifying abnormalities during initial testing of the TSH blood level as well as the T3 and T4 levels.

To get a TPO test near you, simply order online and get your blood drawn at the Quest Diagnostics lab. Once your TPO lab results are ready, they will be available for download. As can be seen on the sample TPO lab report, the TPO blood levels are reported as a numerical value and can be compared against the reference range provided by the lab.

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