Baseline thyroid function blood test

A basic thyroid check covering TSH and FT4, the two hormones most commonly used as a first screen for an underactive or overactive thyroid. It suits anyone wanting a quick initial check.

  • At-home test
  • Doctor reviewed
  • Subscription available
Sample
Blood
Collection
At-home finger-prick or nurse-taken venous sample (£60 extra)
Results in
2 days
Biomarkers
2
Doctor reviewed
Yes
Tests for
  • Free thyroxine (FT4)
  • Thyroid-stimulating hormone (TSH)

Test specifications

Provider
Thriva
Sample type
blood
Collection method
at-home finger-prick or nurse-taken venous sample (£60 extra)
Turnaround time
2 days
Biomarkers tested
2
At-home test
Yes
Doctor reviewed
Yes
Gender focus
Both

What's tested

2 biomarkers as listed by Thriva.

Advanced Thyroid Profile (with antibodies)

  • Free thyroxine (FT4)
  • Thyroid-stimulating hormone (TSH)

About this test

This is a basic thyroid check covering two markers: thyroid-stimulating hormone (TSH) and free thyroxine (FT4). These are the two hormones most commonly used as a first check for an underactive or overactive thyroid, which can affect weight, energy, mood, heart and bone health.

Against the nine tests in this comparison group, this test's two markers sit at the lower end of what's on offer, since several competitors include a third marker for a similar or lower price. YorkTest's two-marker test costs £41 and MyHealthChecked's costs £45, both cheaper than Thriva's £54.90 for the same two markers. Medichecks includes a third marker for £45, and Monitor My Health includes three markers for £32.

Its value for money score reflects sitting right at the group's median price despite offering only the group's minimum marker count. It still scores well for collection convenience and results and follow-up, given the sampling options, two-day turnaround and doctor review.

Who is it for?

This suits people who want a quick first check on TSH and FT4, for example if you have possible thyroid symptoms and want an initial screen before considering something more detailed. If symptoms are ongoing, see your GP as well. If you want the same two markers for less, YorkTest (£41) and MyHealthChecked (£45) are cheaper, and Medichecks includes a third marker for around the same price as those. If you want antibody testing too, Thriva's own advanced thyroid test covers six markers for £80.10.

How it works

The sample is taken as an at-home finger-prick, or a nurse-taken venous draw for an extra £60. The lab measures TSH and FT4, and a doctor reviews the results, typically within two days.

Pros & cons

Pros

  • Doctor-reviewed results within two days.
  • At-home, venous or home nurse collection options.
  • A straightforward first check if you only need TSH and FT4.

Cons

  • YorkTest and MyHealthChecked offer the same two markers for £41 and £45, both cheaper.
  • Only covers two markers, when some similarly priced tests include a third.
  • No thyroid antibody markers; Thriva's own advanced version adds those for £80.10.

Our editorial score

Compare Health Test Score Same two markers as rivals, but not the cheapest
Editorial confidence: 10.0/10

Just two markers, TSH and FT4, make up this baseline thyroid check, priced at £54.90, exactly the median for this comparison group. YorkTest (£41) and MyHealthChecked (£45) offer the same two markers for less, while tests with three markers, like Medichecks (£45), often cost less too. Results include a doctor's review within two days.

Score breakdown

  • Clarity and documentation 9.0/10

    The listing publishes a detailed description, the full biomarker list, a stated turnaround, clear collection options, the sample type; it does not state what the report looks like.

  • Clinical depth 7.1/10

    2 biomarkers against a median of 2 across the 9 tests in its comparison group.

  • Collection convenience 9.0/10

    A finger-prick sample you take at home; with a venous or clinic option as well; a home nurse visit is offered; results in around 2 days, in line with or faster than similar tests.

  • Results and follow-up 7.0/10

    Results are reviewed by a doctor; the provider does not describe the report format.

  • Trust signals 10.0/10

    Trustpilot 4.6 from 3,195 reviews; accredited lab (UKAS ISO 15189 / ISO 17025 partner labs); CQC registered; doctor review as standard; trading 11+ years.

  • Value for money 6.5/10

    £54.90 against a comparison-group median of £54.90 (-0%).

Calculated 13 September 2026 from the facts we hold about this test and provider, using our published scoring formula. Scores are not hand-edited.

Compare with similar tests

This test belongs to our Thyroid function (TSH, FT4, FT3) comparison group. See how it stacks up against equivalent tests from other providers.

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Full TSH, FT4 and FT3 panel at the group median price

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8.6 / 10

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TSH/FT4 test beaten on price only by Monitor My Health

An at-home finger-prick test measuring TSH and FT4, two markers commonly used to check thyroid function. Suited to people with symptoms such as fatigue, weight changes or mood changes.

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