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Intrinsic Factor Antibodies Blood Test
Intrinsic Factor Antibodies Blood Test
Intrinsic Factor Antibodies Blood Test
Intrinsic Factor Antibodies Blood Test
Intrinsic Factor Antibodies Blood Test

Intrinsic Factor Antibodies Blood Test

Intrinsic factor is produced in the stomach and is necessary to extract vitamin B12 from the foods we eat. This test identifies whether antibodies to instrinsic factor are present in your blood, which would indicate pernicious anaemia, an autoimmune condition.
Blood sample 1 biomarker included 4 working days turnaround
from sample receipt at lab

What's included?

Biomarker profile

  • Autoimmunity

Autoimmunity (1 Biomarker)

Special instructions

Do not take vitamin B12 supplements for one week prior to this test. If you are taking B12 supplements prescribed by your doctor you should ask them whether you should stop before testing.
Intrinsic factor is a glycoprotein produced by the parietal cells in the stomach and is necessary for the absorption of vitamin B12 from the food we eat. Interference in the production or activity of intrinsic factor can reduce the absorption of vitamin B12 in the small bowel resulting in anaemia.
This blood test identifies whether antibodies to intrinsic factor are present which would indicate pernicious anaemia, an autoimmune condition.

Pernicious anaemia causes a deficiency in vitamin B12, an essential water-soluble vitamin found in virtually all meat products and certain algae such as seaweed. It helps maintain healthy nerve cells and red blood cells and is also required to make DNA, the genetic material in all cells. Symptoms of pernicious anaemia include, fatigue, shortness of breath, brittle nails, pins and needles and cognitive difficulties (brain fog). Symptoms of pernicious anaemia can become debilitating and can cause lasting damage if not caught early enough. Pernicious anaemia can be treated by regular vitamin B12 injections.

Dr Sam Rodgers MBBS, MRCGP

Why take this test?

  • You have a vitamin B12 deficiency and wish to investigate whether it is caused by an autoimmune disorder

How it works

  • Take the test

    Collect your sample at home, visit a partner clinic, or we can even send a nurse to you.
  • Post your sample

    Send your sample back on the same day you take it in the freepost pack to our laboratory.
  • Get your results

    View your results with doctor's advice on your personal dashboard.
Laboratories you can trust

Laboratories you can trust

Trusted by the NHS and private clinics alike, you can be sure of the highest testing standards from our fully accredited partner laboratories.

Expert interpretation <br>
of your results

Expert interpretation
of your results

One of our team of doctors will review your results and give you personalised advice based on your medical history, lifestyle and health and fitness goals.

Your personal<br>
health centre

Your personal
health centre

Discover the easy way to track your health through our online portal, my.medichecks.com. View your results with doctor's advice, monitor any changes over time and see the improvements you can make to your health with simple lifestyle changes.

Questions? Let us help

Questions? Let us help

Our customer care team is on-hand to help you find the test that's right for you. Get in touch via phone, live chat or email.

What our customers say

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Important

Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.