Advanced Thyroid Blood Test

Unexplained fatigue, weight changes, or mood swings that won’t resolve? This advanced panel checks TSH, FT4, FT3 and thyroid antibodies to screen for autoimmune thyroid conditions like Hashimoto’s or Graves’ disease.
A doctor-written report.
Doctor-written reports and free doctor consultations on selected tests.
- Your blood test — processed by a UKAS-accredited UK laboratory.
- A doctor-written report — your results reviewed personally by Dr James Coleman, a practising GMC-registered GP, and explained in plain English.
- Clear next steps — what your results may mean, and what to do next where appropriate.
- Optional GP appointment — want to talk it through? You can book a private appointment to discuss your results.
Choose how you'd like your sample taken
Pick the option that suits you. The test is the same. Only the way we collect your sample changes.
- Doctor-reviewed report
- Free tracked delivery
- Results in 2–3 working days
- Actionable next steps

Dr James Coleman
“Every Brooksby report is written personally. You get a plain-English interpretation and a clear next step — not just numbers on a page.”
Simple from start to finish
Order your test
Choose online in minutes. Your kit is dispatched and on its way to you.
Collect your sample
Finger-prick or Venous collection
Post it back
Drop your pre-paid, tracked envelope in any postbox. We take it from there.
Your doctor-written report
Reviewed by a practising doctor. Delivered to your secure portal within 2–3 working days.
Follow-up if you need it
If anything in your report needs discussing, you can request a follow-up with our GP from your account — free, and entirely optional.
Your results, explained in a written report
What you actually get in this test
5 biomarkers, analysed by a UKAS-accredited UK laboratory and personally reviewed by Dr Coleman.
A GP-led service, not a lab with a website
Written interpretation, not a PDF
Your results come with Dr Coleman's written interpretation — what each marker means and what to do about it, in plain English.
doctor-written report included
Every report is written by Dr Coleman, a practising GP — not auto-generated and not outsourced.
A named doctor, not a team
Your report is signed by Dr Coleman personally. Not an anonymous review pool.
UKAS-accredited UK lab
Same accreditation standard used by NHS hospitals. Consistent, reliable analysis.
One-off, no subscription
You order the test, you get the report, you own the data. No ongoing fees.
Common questions
Everything you need to know before ordering your Advanced Thyroid Blood Test.
What does the Advanced Thyroid test include?
This panel measures TSH, Free T4, Free T3 and thyroid antibodies (TPO and TG). It goes beyond a basic thyroid check to detect autoimmune thyroid conditions such as Hashimoto's thyroiditis and Graves' disease.
How is this different from the standard thyroid test?
The standard thyroid test measures TSH, FT4 and FT3. This advanced panel adds thyroid antibodies, which can detect autoimmune thyroid disease even when hormone levels still look normal. This is important because antibodies can be present for years before thyroid function actually changes.
When should I take this test?
Collect your sample between 6 and 10 AM when thyroid hormones are most stable. If you take thyroid medication (levothyroxine), take it as normal but delay liothyronine until after the sample. Avoid biotin supplements for 48 hours before testing.
Who should consider this test?
Anyone with a family history of thyroid disease, those with symptoms suggesting thyroid dysfunction (fatigue, weight changes, hair loss), women with fertility concerns, or anyone whose standard thyroid test was borderline and wants a more detailed assessment.
How will I receive my results?
Secure online results with a GP-written explanation from Brooksby Medical in 2 to 3 working days.
More about Brooksby
Is my report reviewed by a doctor?
How accurate are the results?
Who writes the reports?
How long do results take?
Do I need a GP referral?
Can I share my results with my NHS GP?
What happens if something is abnormal?
What is the difference between venous and fingerprick?
Is my data kept private?
Drop us a message — a real person will reply.
We usually get back within one working day. Anything you want to ask before ordering — collection, what's included, fasting, your report, results timing — go ahead.
Ready to order?
A simple sample, a UKAS-accredited lab, and a doctor-written report personally interpreted by Dr Coleman.
Order my Advanced Thyroid Blood Test →