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Thyroid Blood Tests: Types and What Results Mean

Medically reviewed by Kelly Wood, MDKey TakeawaysThyroid 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 ...
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Why Your Thyroid Levels May Be Fluctuating

If you have thyroid disease, your thyroid-stimulating hormone (TSH) levels can fluctuate from time to time. These fluctuations can occur as your thyroid disease progresses or from other factors such ...