Also known as: IF Antibody; IF Antibody Type 1 or Type 2; Intrinsic Factor Binding Antibody; Intrinsic Factor Blocking Antibody; Anti-Intrinsic Factor
Formal name: Intrinsic Factor Antibody
At a Glance
Why Get Tested?
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)
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. Some healthcare providers may prefer not to draw a blood sample for the test within 2 weeks of an injection.