Have you come across the case where skin prick test was inclusive or contradictory? The blood test may be necessary to confirm the allergy. The RAST test is one such test to detect the allergies. This article will provide a brief insight about this popular test soon to be replaced with more advanced fluorescence enzyme-labeled assays. RAST test (Radioallergosorbent test), is one of the common blood tests performed to identify the allergens. RAST is used to detect allergen specific IgE (Immunoglobin E).
The most common reason for using RAST test is the unavailability or insufficiency of skin prick test. The RAST provides good results, however, better tests are now available to detect IgE. It is important not use results of RAST tests alone. The results should always be used with clinical presentations, physical examination. Why is RAST test done? The main motive of using RAST test is to…
