TBG Test

The TBG test measures the TBG blood level.

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TBG Test FAQ

What is a TBG test?

The TBG test measures the TBG blood level.

Why is a TBG test important?

Abnormal TBG levels can cause difficulty transporting thyroid hormones in the body.

What type of specimen will I submit?

This TBG 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 June 1, 2018

TBG Test for $199

TBG Blood Test - More Information

The TBG test, also known as a TBG blood test, TBG lab test, and thyroxine-binding globulin test, is a lab test that measures the TBG blood level.

TBG, or thyroxine-binding globulin, is a glycoprotein that is produced in the liver. Although it is present in relatively low concentrations in the blood, TBG is responsible for binding the thyroid hormones T3 and T4 in the blood. As a result, TBG testing is often done concurrently with the total T3 test and the total T4 test.

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

TBG testing can be a helpful additional test when one is ordering a hypothyroidism test panel or a hyperthyroidism test panel, particularly when the levels of other thyroid hormones are relatively normal.

TBG Test at Guaranteed Prices.
Our TBG 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.