Use

The test is useful for establishing a diagnosis of an allergy to mesquite and defining the allergen responsible for eliciting signs and symptoms. It identifies allergens responsible for allergic response and/or anaphylactic episodes, confirms sensitization prior to beginning immunotherapy, and investigates the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens. However, testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists or in patients in whom the medical management does not depend upon identification of allergen specificity.