Intrinsic Factor Antibodies Blood Test


A test for pernicious anaemia, an autoimmune condition which prevents the body from extracting and absorbing vitamin B12.

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Intrinsic Factor Antibodies Blood Test

About this test

Intrinsic factor is produced by the parietal cells in the stomach and is necessary to extract vitamin B12 from the food we eat. This test identifies whether antibodies to instrinsic factor are present which would indicate an autoimmune condition called pernicious anaemia. 

Pernicious anaemia causes vitamin B12 deficiency, affecting the brain, the manufacture of red blood cells and the nervous system.

Symptoms of perncious anaemia can become extremely debilitating and can cause lasting damage if not caught early enough. Symptoms include, fatigue, shortness of breath, brittle nails, pins and needles and cognitive difficulties (brain fog). 

Pernicious anaemia can be treated by regular vitamin B12 injections which must be administered for life. 

Who is this test for?

This test is for individuals who have a vitamin B12 deficiency and wish to investigate whether it is caused by an autoimmune disorder. 

How it works

Collect Sample

We send you an easy-to-use kit to collect your blood sample.

Post Sample

Post your sample to our lab in the prepaid envelope provided.

View Results

View results securely in your own personal dashboard.

Important Information

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.

Tests Included

Blood sample collection kit

We will send you your Intrinsic Factor Antibodies Blood Test blood sample collection kit together with the details of a convenient clinic where you can go and have your sample taken.

Postage & packaging

Your Intrinsic Factor Antibodies Blood Test includes 1st class postage and packaging for you to send your blood sample directly to our laboratory for analysis. If you live in an area where you cannot rely on the post or you simply want to ensure that your sample arrives at the laboratory the following day, you may wish to send your blood sample guaranteed next day delivery for extra reassurance.

Private laboratory analysis

Your blood sample will be analysed at one of our chosen laboratories. You can be assured of fast, accurate results from one of our accredited independent providers of clinical diagnostic tests.

Interpretation of results

Our medical team will comment on out-of-range blood results and give you follow-up advice where necessary. If you need it, a PDF copy of your Intrinsic Factor Antibodies Blood Test results can be downloaded for your doctor.

Secure online account

Once you have placed your order you can visit where you can manage your account, track your orders and view your Intrinsic Factor Antibodies Blood Test results.

Health and Lifestyle tracker

Stay motivated by filling in your online health and lifestyle questionnaire and seeing how improvements in your lifestyle can influence your results. Your medical and family history gives us vital information when interpreting your results.

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