Medichecks Inflammation & autoimmunity

Intrinsic Factor Antibodies Blood Test

A single blood test for intrinsic factor antibodies, used to help investigate whether a vitamin B12 deficiency has an autoimmune cause such as pernicious anaemia.

  • Doctor reviewed
Sample
Blood
Collection
In-store clinic or home nurse visit or venous draw at clinic
Results in
5 days
Biomarkers
1
Doctor reviewed
Yes
Tests for
  • Intrinsic factor antibodies

Test specifications

Provider
Medichecks
Sample type
blood
Collection method
in-store clinic or home nurse visit or venous draw at clinic
Turnaround time
5 days
Biomarkers tested
1
At-home test
No
Doctor reviewed
Yes
Gender focus
Both

What's tested

1 biomarker as listed by Medichecks.

Autoimmunity

  • Intrinsic factor antibodies

About this test

This test checks for intrinsic factor antibodies, which are linked to autoimmune gastritis and pernicious anaemia. It is commonly used to help investigate whether an existing vitamin B12 deficiency has an autoimmune cause, particularly if you have symptoms such as fatigue, dizziness or unexplained anaemia.

As a single marker, this sits in the 32nd percentile for clinical depth among the 26 similarly sized inflammation and autoimmunity tests we track. At £100, it is priced 13% above their £88.63 median. Collection needs a venous draw, either at a clinic or via a home nurse visit, and results take 5 days.

The overall score is middling, held back by both value for money and collection convenience, since a needle draw is required with no finger-prick or at-home postal option. Trust signals remain strong, reflecting Medichecks' Trustpilot rating and its doctor review included with every result, and clarity scores well too, since the listing sets out the biomarker, sample type and collection options clearly.

Who is it for?

This suits anyone who already has a confirmed B12 deficiency and wants to investigate whether an autoimmune condition such as pernicious anaemia is part of the picture, ideally alongside a conversation with a GP about what the result means.

We do not track a directly comparable competitor test for this specific marker, so we cannot point to a cheaper or deeper named alternative to weigh it against.

How it works

Collection needs a venous blood draw, available at an in-store clinic or via a home nurse visit; there is no finger-prick or postal option for this test. The lab measures intrinsic factor antibodies from the sample, and a doctor reviews the result as standard. Turnaround is 5 days.

Pros & cons

Pros

  • Home nurse visit available, so a clinic visit is not the only option.
  • Doctor review included with the result as standard.
  • Clearly stated single biomarker with defined turnaround and collection routes.

Cons

  • Priced 13% above the £88.63 median for similarly sized inflammation and autoimmunity tests we track.
  • No finger-prick or postal kit; a venous draw is required.
  • 5-day turnaround, slower than several other Medichecks tests in this range.

Our editorial score

Compare Health Test Score Autoimmunity marker priced above the category median
Editorial confidence: 10.0/10

This intrinsic factor antibodies test costs £100, around 13% above the £88.63 median for the 26 similarly sized inflammation and autoimmunity tests we track. A home nurse visit is available alongside the clinic option, so a venous draw does not mean attending in person. Results take 5 days with a doctor's review.

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 6.4/10

    1 biomarkers, placing it in the 32nd percentile of inflammation tests we track.

  • Collection convenience 8.0/10

    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 5 days, slower 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 9.5/10

    Trustpilot 4.5 from 2,477 reviews; accredited lab (UKAS ISO 15189 partner labs); doctor review as standard; trading 25+ years.

  • Value for money 5.9/10

    £100.00 against a median of £88.63 for the 26 similarly sized inflammation tests we track (+13%).

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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