Description
SRL- Dr Avinash Phadke’s Lab | Thyrocare | Suburban Diagnostics
What is FT3, FT4, TSH (FFT) blood test?
High levels of free thyroid hormones in the blood may be a sign of an overactive thyroid, and low levels could be a sign of an underactive thyroid. High TSH levels are a sign of an underactive thyroid (hypothyroidism). The pituitary gland produces more TSH in order to stimulate the thyroid gland to produce thyroid hormones. Very low TSH levels in the blood may be a sign of an overactive thyroid (hyperthyroidism). The pituitary gland then produces less TSH, in order to stop “telling” the thyroid gland to make more hormones.
Test Information
- Serum, 2ml
- TAT Time- 24hrs
- Test Code- FFT
