Collective term for blood tests used to check the function of the thyroid
Thyroid function tests
MeSH
D013960
MedlinePlus
003444
[edit on Wikidata]
Thyroid function tests (TFTs) is a collective term for blood tests used to check the function of the thyroid.[1]
TFTs may be requested if a patient is thought to suffer from hyperthyroidism (overactive thyroid) or hypothyroidism (underactive thyroid), or to monitor the effectiveness of either thyroid-suppression or hormone replacement therapy. It is also requested routinely in conditions linked to thyroid disease, such as atrial fibrillation and anxiety disorder.
A TFT panel typically includes thyroid hormones such as thyroid-stimulating hormone (TSH, thyrotropin) and thyroxine (T4), and triiodothyronine (T3) depending on local laboratory policy.
^Dayan CM (February 2001). "Interpretation of thyroid function tests". Lancet. 357 (9256): 619–24. doi:10.1016/S0140-6736(00)04060-5. PMID 11558500. S2CID 3278073.
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