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| Allergen specific immunoglobulin E antibody measurement (procedure) | | Allergen specific IgE antibody measurement | | Allergen specific immunoglobulin E antibody measurement
| | Laboratory test that measures the presence or concentration of immunoglobulin E (IgE) specific to an allergen of interest and is widely used in the diagnosis of allergic diseases. The test is based upon interactions between antigens and antigen-specific antibodies. The assay is often incorrectly referred to as 'radioallergosorbent test' or 'RAST' because radioallergosorbent tests were the earliest technique to be used extensively. |
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