Forth Immunity & infection

Immune System Blood Test

An 8-marker blood test covering white and red blood cells, vitamin D, B12, iron status and inflammation, for a broad check of immune-related health.

  • Doctor reviewed
Sample
Blood
Collection
Home nurse visit or venous draw at a partner clinic
Results in
2 days
Biomarkers
8
Doctor reviewed
Yes
Tests for
  • Active B12
  • Uric acid
  • hs-CRP
  • Ferritin
  • Haemoglobin
  • Vitamin D (25-OH)
  • Red Blood Cell (RBC)
  • White Blood Cell Count (WBC)

Test specifications

Provider
Forth
Sample type
blood
Collection method
home nurse visit or venous draw at a partner clinic
Turnaround time
2 days
Biomarkers tested
8
At-home test
No
Doctor reviewed
Yes
Gender focus
Both

What's tested

8 biomarkers as listed by Forth.

B Vitamins Profile

  • Active B12

Gout risk

  • Uric acid

Inflammation

  • hs-CRP

Iron status

  • Ferritin

Red blood cells

  • Haemoglobin

Vitamins

  • Vitamin D (25-OH)
  • Red Blood Cell (RBC)
  • White Blood Cell Count (WBC)

About this test

This test measures white and red blood cell counts, active B12, uric acid, hs-CRP, ferritin, haemoglobin and vitamin D. Together these are commonly used to assess general immune health, nutritional status and inflammation, which can all play a part in how well the body fights off illness and recovers from it.

With 8 biomarkers, this test places in the 96th percentile for depth among the immunity tests we track, meaning it covers considerably more ground than most tests aimed at immune health. It is also priced about 38% below the £158.25 median for similarly sized immunity tests, at £98. There is no named comparison group for this specific test yet, so a direct peer-by-peer comparison is not possible.

Clinical depth scores at the very top of the scale given that percentile position, and value for money scores highly given the below-median cost. Collection convenience scores lower than most Forth tests because it requires a home nurse visit or a venous draw at a partner clinic rather than a finger-prick kit. clarity and documentation and results and follow-up both score well because the full biomarker list is published and a doctor reviews the results.

Who is it for?

This suits anyone who wants a broad, well-priced check of immune-related markers and is comfortable with a nurse visit or clinic blood draw rather than a finger-prick sample. Because there is no named comparison group yet, it is worth checking whether a provider offering a finger-prick option covers similar markers if avoiding a clinic visit matters to you.

How it works

You provide a blood sample either through a home nurse visit or a venous draw at a partner clinic; Forth does not offer a finger-prick option for this test. Results are returned within 2 days and reviewed by a doctor before you see your report.

Pros & cons

Pros

  • Covers 8 markers spanning blood counts, vitamins, iron status and inflammation.
  • Places in the 96th percentile for depth among immunity tests tracked.
  • Priced about 38% below the median for similarly sized immunity tests.
  • Results are back within 2 days.

Cons

  • No finger-prick self-sampling option; you need a nurse visit or clinic draw.
  • No named comparison group yet, making it harder to benchmark directly against peers.

Our editorial score

Compare Health Test Score Highly rated for depth and priced well below the market
Editorial confidence: 10.0/10

This 8-marker immune health panel places in the 96th percentile for depth among the immunity tests we track and costs £98, about 38% below the £158.25 median for similarly sized tests. It requires a nurse visit or clinic draw rather than a finger-prick kit.

Score breakdown

  • Clarity and documentation 8.0/10

    The listing publishes a short 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 10.0/10

    8 biomarkers, placing it in the 96th percentile of immunity tests we track.

  • Collection convenience 9.0/10

    A blood sample taken at home by a visiting nurse or phlebotomist; 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 8.5/10

    Trustpilot 4.2 from 1,727 reviews; accredited lab (UKAS ISO 15189 partner labs); doctor review as standard; trading 10+ years.

  • Value for money 8.4/10

    £98.00 against a median of £158.25 for the 13 similarly sized immunity tests we track (-38%).

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

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