- Thyroid
Thyroid Function Test
A thyroid blood test measuring TSH, free T4 and free T3, the three core thyroid markers. It suits adults curious about energy, weight or mood, or tracking thyroid levels.
What this test is for
This thyroid function test measures the three core markers of how your thyroid is working. TSH (thyroid stimulating hormone) is the signal from your brain telling the thyroid how hard to work. Free T4 and free T3 are the thyroid hormones that set the pace at which your body uses energy.
People who feel tired, cold or restless, notice weight changes or have a family history of thyroid problems often choose it. It also suits anyone rechecking levels after a change in medicine. Choose a finger prick kit at home, our Hull clinic or a nurse visit.
Your report sets each hormone against its reference range and shows how they fit together. A result outside the range can prompt a repeat test or a talk with your GP. For thyroid antibodies too, see our Thyroid Profile with Antibodies.
- 24–48h turnaround
- Free return postage
- NHS-standard laboratory
Finger-prick at home
£62
One-off purchase · no subscription
How would you like to take your sample?
- Free tracked delivery
- Free return postage included
- Results in 24–48h
- Digital results with explanation
Your results are reviewed by our clinical team and delivered securely. All tests use NHS-standard laboratories.
Biomarkers included
3 markers measured
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