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Intrinsic Factor Antibody

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Also known as: IF Antibody; IF Antibody Type I or Type II; Intrinsic Factor Binding Antibody; Intrinsic Factor Blocking Antibody; Anti-intrinsic Factor
Formal name: Intrinsic Factor Antibody

At a Glance

Why Get Tested?

To help diagnose pernicious anemia

When to Get Tested?

As part of an investigation, when you have anemia and/or neuropathy that may be due to a vitamin B12 deficiency; when you have red blood cells that are much larger than normal (macrocytic)

Sample Required?

A blood sample drawn from a vein in your arm

Test Preparation Needed?

You should wait at least 48 hours after receiving a vitamin B12 injection to have a blood sample taken. The doctor may prefer not to draw a blood sample for the test within 2 weeks of an injection.