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Anaemia Autoimmune

Intrinsic Factor Antibodies LIS Code: IF Ab

Detect intrinsic factor antibodies with a private blood test for vitamin B12 deficiency and anaemia.

→ 7 days → UKAS-accredited lab → No GP referral needed
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Test Price
£60
Results in
7 days
from sample receipt at lab
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Sample
Blood
£60
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⏱ Results in 7 days · LIS: IF Ab
ℹ️ TAT begins when your sample is received at our lab.
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Phlebotomy Fee: £25
A one-off £25 phlebotomy fee applies per visit — this covers your blood draw regardless of how many tests you book in the same appointment.

Test Categories

Anaemia Autoimmune Autoimmune Anemia Vitamin Deficiencies General Health Neurology Blood Disorders

About this test

What Are Intrinsic Factor Antibodies (IF Ab)?
Intrinsic Factor Antibodies (IF Ab) are immune proteins that target intrinsic factor—a substance produced in the stomach that is essential for the absorption of vitamin B12. When these antibodies are present, they can interfere with vitamin B12 absorption, leading to deficiency.

Role of Intrinsic Factor in Vitamin B12 Absorption
Intrinsic factor is produced by specialized cells in the stomach lining. It binds to vitamin B12 from food and enables its absorption in the small intestine. Without sufficient intrinsic factor, the body cannot properly absorb this vital nutrient.

IF Ab Testing and Pernicious Anemia
Testing for intrinsic factor antibodies is commonly used to diagnose pernicious anemia—a condition in which the body fails to produce adequate intrinsic factor. This leads to a deficiency in vitamin B12, which can have serious health consequences if left untreated.

Symptoms of Pernicious Anemia
Pernicious anemia can present with a variety of symptoms, including:

Chronic fatigue

General weakness

Shortness of breath

Numbness or tingling in the hands and feet

Memory loss or cognitive difficulties

Private IF Ab Testing in Slough and Surrounding Areas
Private blood testing for intrinsic factor antibodies is available in Slough, Windsor, Maidenhead, and nearby Berkshire areas. Early detection of pernicious anemia through IF Ab testing allows for timely treatment and prevention of long-term complications related to vitamin B12 deficiency.

Our Professional Services Our diagnostic testing is carried out by Medical Diagnosis, a UKAS ISO 15189 accredited laboratory, ensuring all results meet the highest UK standards of quality and accuracy. Clinical consultations and treatments, including Testosterone Replacement Therapy (TRT) and Weight Management programmes, are delivered through Medical Diagnosis Victoria, which is registered with the Care Quality Commission (CQC). All clinical services are provided by GMC-registered doctors with extensive experience, following thorough medical assessment in line with UK regulatory standards.
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