RAST Test (Radioallergosorbent Test) is a type of allergy test that is used to determine if a person has an allergy to a particular substance. It is a blood test that measures the levels of specific antibodies in the blood that are produced in response to an allergy.
RAST tests are typically used to diagnose allergies to substances such as pollen, dust mites, animal dander, and certain foods. They are generally considered to be more accurate than skin prick tests, which involve introducing the substance in question to the skin and observing the reaction. RAST tests are often used for people who cannot have a skin test due to skin conditions or certain medications.
RAST tests are usually ordered by a healthcare provider and are performed in a laboratory. The results of the test are typically available within a few days. It is important to interpret the results of a RAST test in conjunction with a person’s medical history and other relevant information.« Back to Glossary Index