Which thyroid tests do I need to determine a thyroid problem?
TSH, T4 and T3
Last updated on 12 Dec 2024
TSH normal values are 0.5 to 5.0 mIU/L
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The hyperthyroidism normal range for TSH is below 0.4 mIU/L, often undetectable, with T3 levels higher than 200 ng/dL and T4 levels exceeding 12.0 µg/dL.The hypothyroidism normal range for TSH is typically above 4.0 mIU/L, with T3 levels lower than 80 ng/dL and T4 levels below 5.0 µg/dL.
Subclinical hypothyroidism is defined as a thyroid stimulating hormone (TSH) level of 4.6 to 10 mIU/L.
TFT, Thyroid Profile Total, Thyroid Stimulating Hormone Total T3 Total T4
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