What is Involved in an Allergy Test?
An allergy test is used to diagnose food and environmental allergies. There are two types of allergy tests: the skin, or prick, test and the blood test. A doctor or nurse practitioner should administer these tests. An allergy is a disorder of the immune system, causing it to overreact to harmless substances. The skin test is the most common of all the allergy testing methods. The patient completes a questionnaire to help determine the food, airborne and contact allergies they have noticed. The questionnaire is usually quite detailed, asking for the number of allergic reactions, intensity, and frequency in the last 12 to 18 months.