One layer deeper into thyroid health
Thyroid Function with Antibodies
When thyroid symptoms persist, the question is often less how the gland is performing than why. This panel measures the three core hormones (TSH, free T4 and free T3) alongside two antibodies, anti-thyroid peroxidase and anti-thyroglobulin. Their presence can point to an autoimmune process such as Hashimoto’s or Graves' disease driving the change.
Knowing whether antibodies are involved adds important context. Symptoms can appear even when hormone levels still sit within range, and antibodies sometimes rise years before the thyroid itself drifts. Seeing the fuller picture helps you and your doctor understand what may be happening and how closely it is worth watching.
Your sample is a single venous draw taken in our private Leigh-on-Sea clinic and analysed by an accredited UK laboratory, with every result reviewed and explained in a doctor’s report.
Preparation: No fasting required. If you take thyroid medication, book your draw before your morning dose where possible and note the timing for your report. Biotin supplements can affect thyroid results, so consider pausing them for 48 hours beforehand.
Inside this panel
5 biomarkers in 2 areas
- Thyroid hormones3 markers
- TSH (thyroid-stimulating hormone)
- Free T4 (thyroxine)
- Free T3 (triiodothyronine)
- Thyroid antibodies2 markers
- Anti-thyroid peroxidase antibodies (anti-TPO)
- Anti-thyroglobulin antibodies
Worth considering if
- Persistent tiredness despite normal hormone tests
- Unexplained weight change
- Feeling unusually cold or warm
- Low mood, anxiety or restlessness
- Dry skin, hair thinning or brittle nails
- A family history of thyroid or autoimmune conditions
Who this test suits
- Anyone with thyroid symptoms that persist despite normal hormone levels
- People with a personal or family history of autoimmune conditions
- Those already diagnosed who want to understand the underlying cause
- Anyone wanting a complete thyroid picture in a single test
- 1
Book your time
Choose a slot that suits you. Appointments only, so the clinic is yours.
- 2
A gentle draw
Demi takes your venous sample in minutes, in a calm private room.
- 3
Doctor-reviewed report
Your results arrive within 5–7 working days, explained marker by marker.
About this test
They indicate whether your immune system is acting against your thyroid, which can point to conditions such as Hashimoto’s or Graves'. This helps explain symptoms and guides how closely your thyroid may need monitoring.
If autoimmune thyroid disease runs in your family, or symptoms persist despite normal hormone levels, this panel adds that layer. For a first look at how your thyroid is performing, the standard panel is often enough.
Most reports are returned within 5–7 working days of your sample reaching the laboratory.
