FT4 (free thyroxine) is the active form of thyroxine, released from the thyroid gland in the neck. Its role is to control metabolism - release of energy from all cells of the body. A lack of thyroxine leads to, for example, tiredness and weight gain, whereas an excess will lead to weight loss, rapid heart rate and anxiety. It is generally believed that this level (FT4) is the most reliable indicator of thyroid status - ie whether the gland is over-active (hyperthyroidism) or underactive (hypothyroidism).
This private blood assessment for Free T4 is offered at all thirty two private outpatient departments across England, Scotland and Wales.
Included in each order for Free T4 are a Doctors Referral, all Phlebotomy fees (your blood taken at a Private Hospital), all laboratory fees and includes our GP comments.
Inclusions: analysis for this analyte only.
Special Instructions: No Special Instructions.
Attendance Restrictions: No Special Attendance Restrictions.
Sample Container: 1 x Gold