TSI Blood Test

The TSI test measures the thyroid stimulating immunoglobulin blood level.

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TSI Blood Test FAQ

What is the TSI test?

The TSI lab test measures the TSI blood level.

Why is the TSI blood test important?

The TSI blood test can help distinguish different autoimmune causes of thyroid disease.

What type of specimen will I submit?

This TSI Blood 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 August 28, 2018

TSI Blood Test for $299

TSI Blood Test - More Information

The TSI test, also known as a TSI blood test, TSI lab test, thyroid receptor antibody test and thyroid-stimulating immunoglobulin test, measures the TSI blood level.

Thyroid-stimulating immunoglobulins (TSIs) are autoantibodies that contribute to thyroid dysfunction. Specifically, TSIs can cause overactive thyroid activity by activating receptors that are typically turned on by thyroid-stimulating hormone, or TSH, which is why the TSI blood test is sometimes done with the TSH test. Elevated TSI blood levels are also seen in Graves' disease, Hashimoto's thyroiditis, thyrotoxicosis and other autoimmune conditions.

To get a TSI lab test near you, just order online and get your blood drawn at your selected Quest lab. For an example of what your TSI lab results will look like, please click on the TSI sample report link above.

The TSI blood test is a component of the Graves' disease test panel. People sometimes also order this TSI lab test in conjunction with the Hashimoto's test panel.

TSI Blood Test at Guaranteed Prices.
Our TSI Blood Test price includes the following:
  • A doctor's lab order*
  • 24 / 7 order processing
  • Access to 1000+ Quest labs
How It Works
1. Order Online*
No separate office visit required.
2. Visit Lab
Get tested at a lab near me.
3. Receive Results
Get electronic results securely.
*Test requests are reviewed and, if appropriate, authorized by a physician.