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Diagnostic Tests in Allergy

  • Dennis R. Ownby
Part of the Current Clinical Practice book series (CCP)

Abstract

Many physicians have the mistaken impression that allergic disease is diagnosed by allergy testing. The diagnosis of allergic disease is primarily dependent on the patient’s history of signs and symptoms typical of allergic disease during or shortly after allergen exposure. A common clinical example is a patient who states that every time he or she visits a home with a pet cat, he or she develops red, itchy eyes and sneezing. The ocular and nasal symptoms are typical of allergic disease, and the onset of symptoms when in homes with pet cats suggests that the symptoms are related to exposure to cat allergen. Two additional factors to consider when evaluating a history are the number of times the patient has noted the association between allergen exposure and symptoms, and whether similar symptoms occur at other times. If the symptoms are exclusively related to cat exposure and have occurred on multiple occasions, the diagnosis is relatively certain. The final step in confirming a diagnosis of cat allergy would be demonstration that the patient has detectable cat-specific IgE antibodies.

Keywords

Skin Test Allergic Disease Eosinophil Cationic Protein Allergen Exposure Intradermal Test 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Dennis R. Ownby

There are no affiliations available

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