Thyroid function check
Tired, cold, or unexplained weight change?
Answer a few questions. If this is the right test, we post the kit. A clinician reviews the report in your account.
Find my test
- Kits usually dispatched within 48 hours
- Collect at home, prepaid return pack
- A UK lab processes your sample
- Every report reviewed by a PrivateDoc clinician
How it works
How at-home blood tests work
Tell us why you want a test
Share your symptoms and history. PrivateDoc users: we use that record too.
We send the matched kit
We match you to the right kit and post it. Most go out within 48 hours.
Collect at home, post it back
Collect your sample using the kit. Return it in the prepaid pack - no clinic.
Read the reviewed report
A PrivateDoc clinician reviews it in your account. We message you if follow-up is needed.
Why people use this instead of a walk-in test
- Collect at home with step-by-step instructions. No clinic visit.
- Post it back in the pack we send. No clinic, no drop-off queue.
- Processed in the UK. You get a clinician message when the report is ready, not a raw PDF in isolation.
- A PrivateDoc clinician reviews every report.
- If you already use PrivateDoc, the report lands in the same account. If you are new, you create that account during the questionnaire.
- You skip guessing a kit from a product list.
What this thyroid check is for
This check looks at thyroid hormones. It can help explain tiredness, feeling too cold or too hot, or unexplained weight change. A clinician reviews the report with your history, in your PrivateDoc account.
This test typically includes
- Free Thyroxine
- Thyroid Stimulating Hormone
This test typically costs £38, including home collection and clinician review.
The photo shows the kit. It is not a checkout. Answer a few questions. If this is the right test, we send it.
Frequently asked questions about blood tests
How do at-home blood tests work?
You answer a short health questionnaire so we can match you to the right kit. We post that kit to you. You collect a sample at home, return it in the prepaid pack, and a clinician reviews the laboratory report in your PrivateDoc account.
Which blood test will I receive?
You will not pick one from this website. After a few questions, we send the kit that fits, for example a thyroid check, a heart-health profile, or a core health check.
What does it cost?
Kits start from £38, including home collection and clinician review. Exact prices sit on each kit page. The questionnaire confirms the match before you order, so you are not checking out a named kit from this page.
Where do my results appear?
If you already use PrivateDoc, the report lands in the same account. If you are new, you create that account during the questionnaire. We will message you when the report is ready, including any recommended next steps.
What if a result is abnormal?
A clinician reviews every report and messages you if follow-up is needed.
Is this instead of my GP?
This does not replace your GP. It is an at-home panel with clinician review. If you have urgent symptoms, contact your GP or emergency services.
Will I manage the sample at home?
Kits include step-by-step instructions for collecting the sample at home. You do not need to visit a clinic or a drop-off point.
Can I buy a named kit from this page?
No. You cannot check out this kit from this page. Find my test starts a few questions. If this is the right test, we send it.
How quickly will the kit arrive?
Test kits are typically delivered within 48 hours. The laboratory then processes your sample and a clinician reviews the report, usually with a short turnaround once the sample has been received.
Do I need a new account?
No. If you already use PrivateDoc, use that account. If you are new, you create the account during the questionnaire. The questionnaire, kit order, and clinician-reviewed report all sit in the same account.
Ready to see which test you need?
A few questions, then we match the kit. No kit checkout on this page.