Elizabeth Otero, M.D.

Which allergy test is more accurate?

Most of IgE/RAST tests (blood test) are not as accurate as skin tests. They also cost more and the results are not available as rapidly as skin tests. Blood testing for allergies are generally used only in cases in which skin tests cannot be performed, such as on patients taking certain medications that block the results of the skin test, or those patients with skin conditions that may interfere with skin testing.




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