Allergen Testing

Allergy testing should be considered for all pets suspected of Atopic dermatitis (environmental allergies). Serological testing for food allergies does exist however these are generally not recommended as results are unreliable and does not replace the importance of a “food trial”.

Below are testing methods for Atopic dermatitis (environmental allergies).

Rise in antibody levels to environmental allergens occurs in allergic dogs and cats. This makes it possible for laboratories to identify what our pets are allergic to. These tests are readily available and is easily performed via blood sampling.

In general, the patient does not have to be withdrawn from medications that would interfere with traditional intradermal allergy testing, however, because these tests measure a component of the immune response, anti-inflammatory medications (e.g. prednisone) can alter the results. Discuss with your veterinarian whether medications should be withdrawn before completing serological testing.

For many years, intradermal allergy testing has been considered the “gold standard” for diagnosing and treating canine atopy, and it has remained the primary testing method used by most veterinary dermatologists. Intradermal allergy testing allows skin testing at the place where the allergic response is occurring. Most animals tolerate the procedure well and results are immediately available. Sedation is required to minimize anxiety and stress. Patients should be withdrawn from antihistamines for at least 10-14 days, and from all steroid-containing medications for at least 4 weeks.