Thyroid function tests (TFTs) is a collective term for blood tests used to check the function of the thyroid.
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TFTS is overjoyed to have been nominated as Daily Cup of Tech's Tech Blog of the Week. ... TFTS Nominated as Red Orbit Blog of the Day " Thoughts from the Sidelines ...nexus404.com/Blog/2007/04/08/tfts-dcut-award/Simo's Sagacity " Blog Archive " Writing for TFTS
Just to let you know that I have started writing for the TFTS blog. ... Report says Facebook, Twitter and blogs are more popular than email ...blog.garysims.co.uk/2008/12/04/writing-for-tfts/Tfts — Blogs, Pictures, and more on WordPress
TFTS via Boing-boing Whilst by no means quite as cool as the R2D2 DVD Projection ... previously on TFTS, if you happen to be one of the growing throng of retro ...en.wordpress.com/tag/tfts/Thyroid function tests (TFTs) is a collective term for blood tests used to check the function of the thyroid.
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.
Panel components
A TFT panel typically includes thyroid-stimulating hormone (TSH, thyrotropin) and thyroxine (T4), and triiodothyronine (T3) depending on local laboratory policy. Thyroid function tests (TFTs) is a collective term for blood tests used to check the function of the thyroid.
A TFT panel may include:
- Circulating concentrations of:
- Total Hormones
- thyroid-stimulating hormone (TSH, thyrotropin)
- thyroxine (T4),
- triiodothyronine (T3)
- Free hormones (direct measurements)
- Free T4
- Free T3
- Carrier proteins
- Thyroid binding globulin
- Transthyretin (prealbumin)
- Albumin
- Measures of protein binding of thyroid hormones
- Tuptake
- Thyroid hormone binding ratio (THBR)
- Thyroxine-binding index (TBI)
- Calculated indices of free hormones
- Free T4 index
- Free T3 index
See also
- Reference ranges for blood tests#Hormones

























