Allergy testing, in vivo
In vivo allergy testing is performed in/on the body in persons with suspected allergic diseases for the purpose of diagnosing immunoglobulin E (IgE)-mediated allergic disorders. The most common form of diagnostic in vivo allergy testing is skin testing, which involves direct introduction of antigen, or allergen, into the skin either by the percutaneous route (pricked, punctured, or scratched into the skin surface) or by the intradermal, or intracutaneous, route (injection within the dermal layer). Skin tests are used in addition to a directed medical history and physical examination to exclude or confirm IgE-mediated diseases such as allergic rhinitis, allergic asthma, and anaphylaxis to airborne allergens, foods, insect venoms, and certain drugs.
- Allergens
- Hypersensitivity