Allergy Testing

Allergy tests are used to determine which substances trigger allergic reactions in an individual. Two types of tests can be used to confirm an allergy diagnosis:

Blood tests - a small sample of blood is taken and tested for dozens of different allergens. Also called RAST tests or in-vitro tests.

Skin tests - applying suspected allergens to the skin to see if they elicit an allergic reaction (raised or irritated skin). Also called scratch tests or skin-prick tests.

Skin testing is usually done on the arm or upper back. For blood testing, blood is drawn from the arm.

Allergy tests are used to determine which substances trigger allergic reactions in an individual. Once allergic triggers are identified, a person can take the necessary steps to avoid or lessen contact with the offending substance and reduce the chances of an allergic reaction

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Prior to Procedure - Keep a diary of your allergy symptoms. When you experience symptoms, write down the time of day, where you are, what you ate, and what you have come in contact with that could trigger the allergic reaction. Make sure to bring the diary with you to your doctors appointment.

During Procedure

Once specific allergens have been identified, steps can be taken to avoid these triggers and lessen allergic symptoms. Ask your doctor to give you detailed information on ways to take control of your allergies. Tailor your activities to avoid exposure to allergens that bother you, such as tree and grass pollens, dust mites, molds, specific foods, latex, or environmental and household irritants. Once you are diagnosed, pay close attention to possible triggers and discuss these with your doctor.