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Intrinsic factor antibodies

Category Immunology
Test background

Antibodies against intrinsic factor are present in 50-60 % of patients with pernicious anaemia. Their presence may pre-date the development of B12 deficiency.

This test is performed by ELISA.

Clinical Indications

Differential diagnosis of vitamin B12 deficiency.

Reference range


Sample & container required Serum (RST rust top)
Sample volume 5-10 mL blood (1 mL serum)
Turnaround time 14 days