A few symptoms are associated with Graves' disease but not other forms of hyperthyroidism.
Not everyone has them, but when they’re present, they make Graves' more highly suspected.
An antibody is a specialized protein made by your immune system.
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Antibodies are custom made to kill pathogens in your body, such as viruses or bacteria.
That results in high levels of thyroid hormones, which is what causes symptoms.
If the thyrotropin receptor antibody is present, it’s an indicator of Graves' disease.
The TRAb test has seen some controversy over how accurate it is.
Risks and Contraindications of the TRAb Test
Blood tests are common and quite safe.
You may feel a sting from the needle.
Keep the injection site clean as you would any cut or scrape.
Long-Term Effects
Simple blood tests like those performed for hyperthyroidism are not associated with any long-term effects.
These tests can typically be performed at any time of day.
The test itself takes very little timejust a couple of minutes.
You may also want to arrange for someone to drive you to and from the test.
You probably will not get the results of your TRAb right away.
It’s more likely that your healthcare provider will contact you later with the results.
Expect it to take at least several days.
What to Wear
Wear short sleeves or sleeves that can easily be pushed or rolled up.
You shouldn’t need to change into a hospital gown for a TRAb.
You may have a copay or be responsible for a portion of the cost.
Your healthcare provider’s office or the lab should be able to tell you the price before the test.
You may want to bring something to occupy your time if you expect a long wait.
During the TRAb Test
The test procedure is fairly simple.
Here’s what to expect.
They’ll ask you to push up your sleeve or remove a long-sleeved layer if necessary.
They may ask you to make a fist or squeeze your hands open and closed.
If multiple tests are being performed on your blood, they may switch out vials one or more times.
Post-Test
After that, they’ll bandage it and you should be free to go.
If you’re having any problems, such as anxiety or dizziness, let them know.
They may want to monitor you for a while to confirm it’s safe for you to leave.
The bruise should go away in a few days.
You shouldn’t have any other lingering effects from a simple blood draw.
If you experience any other adverse effects, call your healthcare provider.
Summary
The TRAb test is a blood test that helps diagnose the thyroid condition Graves' Disease.
It looks for an antibody associated with the condition.
The TRAb test is a simple blood test that does not require fasting.
It can typically be done at any time of the day.
The test will either be positive or negative for the antibodies.
If it’s positive, it’s likely you have Graves' disease.
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