Blood collection at collection point
- You receive a test kit with tubes and referral letter
- Visit one of 800+ collection locations in the Netherlands
- Experienced staff professionally draw your blood
- Receive your results digitally by email
Free T3 (FT3)
Free T3; for thyroid function.
€19.95EUR
€20.00EUR
€5.95EUR
Costs are per order
- TrustPilot 4.6/5 sterren
- No GP referral needed
- Reviewed by BIG-registered physician
- ISO 15189 Certified laboratory
- Results within 1 week
- Order today, ships today
What is FT3?
Free Triiodothyronine, abbreviated FT3, is a thyroid hormone in the blood that is essential for regulating metabolism, heart function, digestion, and brain development.
Why should FT3 be tested?
Testing FT3 is useful for evaluating thyroid function. It is particularly helpful in diagnosing hyperthyroidism or hypothyroidism, especially if other tests, such as those for TSH or FT4, show abnormal results.
What does it indicate?
FT3 levels provide information about how active the thyroid gland is. It aids in the diagnosis of thyroid diseases and in monitoring the treatment of thyroid conditions.
What does a high FT3 level mean?
A high FT3 level may indicate hyperthyroidism (an overactive thyroid gland), which can lead to symptoms such as weight loss, palpitations, increased anxiety, insomnia, and hand tremors.
What does a low FT3 level mean?
A low FT3 level may suggest hypothyroidism (an underactive thyroid gland), which can result in symptoms such as weight gain, fatigue, depression, cold intolerance, and dry skin.
