Thyroid blood tests help figure out how well your thyroid gland is working. TSH helps the thyroid gland know when to make more thyroid hormones. Free T4 is the type of hormone that becomes active when ...

A radioactive iodine uptake (RAIU) tests the function of your thyroid gland, which helps regulate your metabolism. It works by measuring how much radioactive iodine is absorbed by the thyroid gland, ...

A TPO antibody test helps diagnose autoimmune thyroid diseases like Hashimoto’s thyroiditis. A positive test result means antibodies are present and may indicate a thyroid condition, but other tests ...

Possible Reasons, and The Best Labs for Fatigue Key Takeaways: Fatigue describes more than just feeling sleepy — it’s a ...

A thyroid-stimulating immunoglobulin (TSI) test is a blood test that can help diagnose Graves’ disease, an autoimmune condition that causes an overactive thyroid. A TSI test measures levels of TSIs in ...

This research shows that how strong the thyroid treatment is can be a risk factor for heart problems. The good news is that ...

PHILADELPHIA (WPVI) -- The thyroid is a small gland with a big job. When it malfunctions, it can affect the body in many ways. It's the butterfly-shaped gland just below the Adam's apple. "And it is ...

Subacute thyroiditis (SAT) is a type of thyroid gland inflammation. It commonly leads to neck pain and symptoms that affect the body, such as fever and muscle pain. SAT is the most common, painful ...

This article was reviewed by Felix Gussone, MD. Key Takeaways: Hormones like insulin, cortisol, thyroid hormones, and ...