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Test Name:
Intrinsic Factor Blocking Antibody


  • SBMF No:
    44084
  • Performance Lab Name:
    ARUP Laboratories
  • Test Mnemonic:
    IFBA-
  • ABN:
    Not required
  • CPT Code:
    86340
  • LOINC Code:
    9537-2
  • Ref Lab Test No:
    0070210
  • Also Known As:
    IFBA
  • Spec Type:
    Serum
  • Spec Container:
    Gold top (SST) or red top (serum) tube
  • Pref Vol:
    1.0 mL
  • Min Vol:
    0.3 mL
    Pediatric Collection: 0.15 mL
  • Fasting:
    No
  • Spec Collect:
    Routine venipuncture
  • Spec Process:
    Clot 30 minutes
    Promptly centrifuge 15 minutes
    Immediately transfer serum to separate plastic tube and freeze
  • Spec Store Transport:
    Frozen
  • Spec Stability:
    After separation from cells
    8 hours room temperature (20-30°C)
    2 days refrigerated (2-8°C)
    1 month frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles
  • Methodology:
    Enzyme-Linked Immunosorbent Assay (ELISA)
  • Clinical Significance:
    Refer to:
    ARUP Consult | The Physician's Guide to Laboratory Test Selection and Interpretation
  • Reference Range:
    Negative
  • Day Run:
    Mon, Wed, Fri
  • Time Reported:
    2-5 days
  • Test Type:
    IMMUNOLOGY