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  • Thyroid supplementary (Free T4 and Free T3)

Thyroid supplementary (Free T4 and Free T3)

    Do you have a too slow or too fast working thyroid are you constantly tired or just can't manage to lose weight? Test your values today.


    + 21.90 one-time piercing fee per order
    Watch the video for more information


    This test requires a blood draw from a vein. Collection is done through a blood collection center near you. Each order requires only 1 blood draw, even if you order multiple tests.

    The cost of blood collection at the blood collection station including test kit and shipping costs is €21.90.

    Can't figure it out? Then contact ourcustomer service.

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    • No referral needed from your family doctor
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    • Puncture points throughout the Netherlands

    1853 reviews



    Very nice agency. I have a full check done annually and am very satisfied. Result of the test comes quickly and customer service is easily accessible.



    Super fast, received results of extensive blood test after only one week

    Product Description

    Thyroid supplementary (Free T4 and Free T3)

    This test is intended to supplement a test where standard TSH is measured.
    With this test, the blood values T4 free and Free T3 are tested, even though your TSH is good.

    Free T4 (FT4, free T4, free thyroxine) is a thyroid hormone. This hormone ensures that all kinds of processes in the body run fast enough. A value that is too low indicates a thyroid that works too slowly. Too high a value of FT4 indicates a thyroid that works too fast.

    Free T3 (FT3) is the hormone that arises from T4 and causes the final effect of thyroid hormone. So actually, T3 is more important than T4, but we measure T4 to examine changes in thyroid function.

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      Thyroid supplementary (Free T4 and Free T3)

      Thyroid supplementary (Free T4 and Free T3)

      € 39,-