Intrinsic Factor Blocking Antibody, Serum:
Fasting Required: No
Specimen: Blood
Special Instructions: Discontinue B12 shots and/or supplements for 1 week prior to testing.
Results: Average processing time 3-5 days
Description: Intrinsic factor blocking antibody, which prevents the binding of vitamin B12 to the intrinsic factor molecule, is present in >50% of all patients with pernicious anemia and only rarely encountered in other conditions.
Pernicious anemia is one of the major causes of vitamin B12 deficiency.
Methodology: Immunoassay
Alternative Name(s): IF Antibody, IF Antibody Type 1 or Type 2, Intrinsic Factor Binding Antibody, Intrinsic Factor Blocking Antibody, Anti-Intrinsic Factor
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.