Intrinsic Factor Blocking Ab

• CPT Code: 86340
• LOINC:
• Specimen Type: Red or SST
• Frequency: Setup: Mon-Sat; analytic time 1 days
• Instructions: 1.0mL serum from red or SST. Refrig. Min 0.5mL. Should not be ordered on patients who received Vit B12 injection during the 2 weeks. May freeze.
• Text: Useful For: Confirming the diagnosis of pernicious anemia. The aim of the work-up of patients with suspected vitamin B12 deficiency is to first confirm the presence of deficiency and then to establish its most likely etiology. Components: Z0351 Intrinsic Factor Block Ab; Z0352 IFB Ab Comment.
• Methodology: Immunoenzymatic Assay