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TSH stands for thyroid stimulating hormone . Another name for it is thyrotropin. A TSH test is a blood test that measures this hormone. A TSH level that is too high or too low may be a sign of a thyroid problem .
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The pituitary hormone that regulates the thyroid; the primary first-line test for thyroid dysfunction.
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Thyroid-stimulating hormone — the pituitary signal that regulates the thyroid and the usual first test of thyroid function.
Article
Research record from Pract Lab Med, 2026-07-04. PMID 42433632.
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Population screening of newborns from dried blood spots for treatable inborn errors of metabolism before symptoms appear.
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A thyroid antibody test measures the level of thyroid antibodies in a sample of your blood to check for an autoimmune thyroid disease . Your thyroid is a small, butterfly-shaped gland in your neck. It makes hormones that control many activities in your body, including your heart rate and how fast you burn calories from food.
Tests
A triiodothyronine (T3) test measures the level of T3 in a sample of your blood. It's used to help diagnose thyroid disease .
