Description
The Thyroid Function Test gives a complete assessment of the gland that regulates your metabolism, energy, weight and mood, detecting imbalances that are easily missed.
About the Thyroid Function Test (TFT)
A TFT typically measures TSH along with the thyroid hormones T3 and T4 to evaluate how well your thyroid is working. An underactive or overactive thyroid can cause wide-ranging symptoms — fatigue, weight change, hair loss, mood changes, palpitations and temperature sensitivity — that are often mistaken for other conditions. This panel is valuable for anyone with such symptoms and as part of a comprehensive health screen.
Preparation and turnaround
A venous blood sample is required and no fasting is generally needed, though a morning sample is often preferred. The test takes only a few minutes and results are usually available within one to two working days. If you take thyroid medication, mention this when you attend, and review results with your doctor.
Frequently asked questions
Do I need to fast for a thyroid test?
Fasting is not usually required, though a morning sample is often preferred for consistency.
What symptoms suggest a thyroid problem?
Fatigue, unexplained weight change, hair loss, mood changes, palpitations and sensitivity to heat or cold can all point to thyroid imbalance.
What is the difference between TFT and TSH alone?
A TSH test is a first-line screen, while a full TFT also measures T3 and T4 for a more complete assessment.
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