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TSH levels decoded and what they mean
Medically reviewed by Kelly Wood, MD Key Takeaways High TSH levels usually mean the thyroid is underactive, which is called ...
The thyroid-stimulating hormone (TSH) test measures the amount of TSH in the blood to convey how well a person’s thyroid functions. Normal levels are typically 0.4 to 4.0 milliunits per liter (mU/L) ...
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