Know the difference between the different types of allergy testing, such as intradermal test, scratch test, patch test and radioallergosorbent test?
Intradermal Test- is performed by introducing dilute solutions of allergens into the skin of the inner foreman or upper back with a fine-gauge needle.
Scratch Test- is performed to test the patients specific allergies. Extracts of suspected allergens are applied to the patient's skin, usually on the arm or back
Patch Test- you perform it by placing a linen or paper patch on uninvoled skin and then using a dropper to soak the patch with te suspected allergen
Radioallergosorbent Test- the RAST measures blood levels of antibodies to specific allergens