Intrinsic Factor, IgG Antibody

Intrinsic Factor IgG Antibody (IF antibodies) test checks for the antibodies produced against intrinsic factor produced by parietal cells in the stomach. Intrinsic factor is mandatory for the absorption of vitamin B12 in the body. Presence of IF antibodies is an indication of an autoimmune disorder resulting in pernicious anemia. This test is recommended by a doctor if he suspects a vitamin B12/ folate deficiency symptoms such as paleness, fatigue, numbness or tingling in the limbs and larger than normal RBCs observed in a CBC count test.

The Intrinsic factor normal range is 1.21 to 1.52 AU/mL.

Intake of Vitamin B12 rich foods and intramuscular injections can help to cure the condition.

Please note: This is an outsourced test. The sample for this test is collected by TATA 1MG and processed at a NABL accredited partnered lab.