Days Set Up
Monday - Friday
Analytic Time
2 - 5 days
MiChart Code
Intrinsic Factor Blocking Antibody
Soft Order Code
IFBA
Test Updated:
Synonyms
INTRINSIC FACTOR BLOCKING AB
IFB AB
IFBA TEXT
IFBA COMMENTS
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Test Overview
Test Methodology
Competitive Binding Immunoenzymatic Assay
Test Usage
Positive in 50% of persons with pernicious anemia.
Reference Range
Negative (reported as positive, negative, or indeterminate).
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Billing Information
CPT Code
86340
Pro Fee Code
LOINC
31444-3