Skip to product information
Thyroid Function Blood Test Kit
  • Thyroid Function Blood Test Kit
Thyroid Function Blood Test Kit

Thyroid Function Blood Test Kit

£43.00

Biomarkers (0)

Including thyroid hormone markers (FT3, FT4, TSH). Alternatively, upgrade to our Advanced Thyroid Function Blood Test for a deeper analysis.

What’s in the box

  • Pre-labelled sample tube(s)
  • Sterile single-use lancet(s)
  • Alcohol wipes
  • Plasters
  • Absorbent pad & sealable biohazard bag
  • Protective tube holder
  • Barcode labels & lab request form
  • Instruction leaflet
  • Prepaid tracked return envelope (UN3373 compliant)
  • Discreet outer packaging
    Description

    This product is a home blood test kit that checks key thyroid hormones, typically measuring TSH (Thyroid Stimulating Hormone) and free T4 (thyroxine), to evaluate thyroid activity. It helps you understand whether your thyroid is underactive, overactive, or within normal range.

    Why choose this product

    • Screens essential thyroid hormone levels for routine checks

    • Useful if you experience symptoms like fatigue, weight changes, or temperature sensitivity

    • Helps guide medical follow-up or adjustments in thyroid treatment

    • Convenient at-home collection with laboratory analysis

    Important information

    • Abnormal thyroid results do not diagnose disease on their own; clinical evaluation is essential

    • Thyroid levels can be affected by medications, stress, illness, or nutritional factors

    • This test is for informational purposes and should not replace professional medical diagnosis

    • Results should be reviewed by a qualified healthcare professional

    • All samples are processed by accredited endocrinology / biochemistry laboratories

    Reliable Home Test Kits for Every Need

    At MeditestDirect, we offer a wide range of trusted home testing kits from general health and wellness to more specific medical checks. Whether you're monitoring your body or taking control of your health journey, we've got a test that fits. Your results are processed securely and kept completely confidential, giving you peace of mind every step of the way.

    Left Image
    Right Image
    Left Image
    Right Image

    Your Health, Your Terms, Fast & Private Testing

    With MeditestDirect, you're in control. Choose from a full range of easy-to-use home test kits, all designed to give you accurate results without the wait. From everyday check-ups to targeted health concerns, every test comes with full privacy and secure result delivery—because your health information should stay yours.

    Explore Our Most Popular Tests.

     Shop Now

    What's in the test?

    • Thyroid hormones

      TSH

      Thyroid stimulating hormone (TSH) is produced in the pituitary gland in order to regulate the production of thyroid hormones thyroxine (T4) and triiodothyronine (T3) by the thyroid gland. If thyroid hormones in the blood are low, then more TSH is produced to stimulate the thyroid gland to produce more of them. If thyroid hormone levels are high, then the pituitary produces less TSH to slow the production of thyroid hormones. If TSH is too high or too low, it normally signifies that there is a problem with the thyroid gland which is causing it to under or over produce thyroid hormones. Sometimes a disorder of the pituitary gland can also cause abnormal TSH levels.

      Free T3

      Triiodothyronine (T3) is the more active of the two thyroid hormones produced by the thyroid gland. Most T3 is bound to protein in the blood. Free T3 measures the level of T3 that is free, or unbound to protein, and is available to regulate metabolism.

      Free thyroxine

      Thyroxine (T4) is one of two hormones produced by the thyroid gland. It works to speed up the rate of your metabolism. Most T4 is bound to carrier proteins in the blood - it is only the free, or unbound, T4 that is active in the body, which is measured in this test. Free T4 is the less active of the two main thyroid hormones. To have an impact on your cells it needs to convert to the more active T3 when your body needs it.

    You may also like