TPO Test

The TPO test measures the thyroid peroxidase antibody blood level to help assess thyroid health.

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What is a TPO test?

The TPO test measures the thyroid peroxidase, or TPO, antibody blood level.

Why is a TPO test important?

TPO antibodies can cause conditions resulting in an underactive thyroid gland.

What type of specimen will I submit?

This TPO Test 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 April 15, 2021

TPO Test for $69

TPO Test - More Information

The TPO test, also known as a TPO blood test, thyroid peroxidase antibody, TPO antibody test, and TPO Ab test, measures the TPO antibody blood level.

Thyroid peroxidase, or thyroperoxidase (TPO), is an enzyme that is important in thyroid hormone production. When the immune system is overactive, it can produce special proteins called TPO antibodies which slow or stop TPO's activity. By blocking TPOs activity, TPO antibodies cause the thyroid gland to be underactive - a condition called hypothyroidism. One study suggests that higher TPO antibody levels may be correlated with disease severity. Because they are often present when hypothyroidism is diagnosed, TPO testing is often performed with the TSH test and as part of the hypothyroidism test panel.

TPO antibodies are also related to more specific thyroid conditions in which the thyroid gland is underactive. Two of those conditions are Graves' disease and Hashimoto's thyroiditis. As a result, TPO blood testing is also performed as part of the Hashimoto's test panel.

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.

TPO Test at Guaranteed Prices.
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How It Works
1. Order Online*
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2. Visit Lab
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*Test requests are reviewed and, if appropriate, authorized by a physician.