What causes increase in thyroid TSH and rest normal?
The most common cause of elevated TSH is autoimmune thyroid disease.
Last updated on 22 Jun 2023
Free T3 assays are often unreliable and not routinely used to assess thyroid function.
Last updated on 21 Jun 2023
Yes, this level of TSH is dangerous if left untreated
This indicates secondary hypothyroidism
Rarely, people will have normal TSH levels but low T4 levels. This combination suggests secondary hypothyroidism, a condition where thyroid function is impaired due to problems in the pituitary gland.
TFT, Thyroid Profile Total, Thyroid Stimulating Hormone Total T3 Total T4
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