What is a thyroid function blood panel?

A thyroid function panel is a group of blood tests that show how well your thyroid is working. The thyroid is a small gland in your neck that controls your body’s metabolism—how your body uses energy. These tests usually measure TSH (thyroid-stimulating hormone), T3, and T4 levels to check for conditions like hypothyroidism or hyperthyroidism.

Who is a candidate for a thyroid function panel?

You may need this test if you:

  • Have symptoms like tiredness, weight changes, or mood swings
  • Have a history of thyroid problems
  • Are being treated for a thyroid condition and need monitoring
  • Have an autoimmune disorder or a family history of thyroid disease
  • Are pregnant or trying to become pregnant

What to expect during a thyroid function panel

A healthcare provider will draw a small sample of blood from your arm. The test usually only takes a few minutes and doesn’t require any special preparation. Some doctors may ask you to avoid certain medications before the test.

What are the risks for a thyroid function panel?

This is a very low-risk test. You might feel a small pinch or notice mild bruising where the needle goes in, but serious side effects are rare.

What does recovery from a thyroid function panel entail?

There’s no recovery time. You can go about your day right after the test. Your doctor will review the results and explain whether your thyroid is working properly or if treatment is needed.

 

Mercy Health locations that can perform a thyroid function blood panel