Advanced Thyroid Blood Test

6 Biomarkers | Venous or Capillary Blood Test | CE-marked | UKAS-accredited | Doctor-reviewed results with personalised interpretation.

A detailed thyroid panel checking thyroid hormones and thyroid antibodies. Designed for people who want deeper thyroid insight including autoimmune markers, this test gives clear, clinically reviewed insight so you can understand your results and know what to do next.

Results are typically available within 2 working days from when your sample reaches the laboratory (excluding weekends and bank holidays).

£89.00

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Choose your sample collection method: Book a venous draw at our Livingston clinic Book a venous draw at home with a nurse +£63 Self-arrange a professional sample collection Partner clinic visit + £35.00 Finger Prick

Thyroid Peroxidase Antibodies
Thyroglobulin Antibodies

Free Thyroxine, FT4
Free Triiodothyronine, FT3
Thyroid Stimulating Hormone
Thyroxine, T4

Fasting required 8–12 h before the test (water only) recommended for glucose, cholesterol/triglyceride accuracy
Sample timing: between 7:00 AM – 10:00 AM
Stay hydrated; avoid strenuous exercise, heavy meals, and supplements (iron, B12, multivitamins, biotin) for 48 hours prior
Continue prescribed medications unless otherwise directed

Frequently asked questions

It is for adults who need a complete thyroid assessment, including those with persistent symptoms despite normal basic results, a family history of thyroid disease, or a suspected autoimmune cause. It includes TSH, free T4, free T3 and thyroid antibodies.

Raised antibodies indicate an autoimmune process, usually Hashimoto's thyroiditis or Graves' disease. This can explain why symptoms persist even when TSH sits within range, and it means your thyroid function should be monitored over time, as it may change.

TSH and T4 alone can miss problems with converting T4 into the active hormone T3. Some people have normal TSH and T4 but low T3, which can explain ongoing symptoms. Measuring all three gives the fuller picture.

Stop biotin supplements for at least 48 hours, as they interfere with every marker in this panel. If you take levothyroxine, sample before your daily dose. Fasting is not required, but consistent timing helps when comparing results over time.

Yes. Early autoimmune thyroid disease often shows raised antibodies while TSH remains normal, and problems with T3 conversion are invisible on TSH alone. This is precisely why the advanced panel exists.