Which lab tests are used in the diagnosis of allergic rhinitis (hay fever)?

Updated: Dec 26, 2018
  • Author: Javed Sheikh, MD; Chief Editor: Michael A Kaliner, MD  more...
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Answer

Laboratory tests used in the diagnosis of allergic rhinitis include the following:

  • Allergy skin tests (immediate hypersensitivity testing): An in vivo method of determining immediate (IgE-mediated) hypersensitivity to specific allergens

  • Fluorescence enzyme immunoassay (FEIA): Indirectly measures the quantity of immunoglobulin E (IgE) serving as an antibody to a particular antigen

  • Total serum IgE: Neither sensitive nor specific for allergic rhinitis, but the results can be helpful in some cases when combined with other factors

  • Total blood eosinophil count: Neither sensitive nor specific for the diagnosis, but, as with total serum IgE, can sometimes be helpful when combined with other factors


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