MEA 150 CH 42 QUESTIONS AND
ANSWERS WITH SOLUTIONS 2024
scratch test - ANSWER tests the patient for specific allergies
extracts of suspected allergens are applied to the patient's skin, usually on the arms or back
one site is always a negative control—a solution like the
one used to carry the allergens but containing no allergen is applied
skin is scratched to allow the extracts to penetrate
needle on arm or back or land sets
patch test - ANSWER allergy test in which a gauze patch soaked with a suspected allergen is taped onto
the skin with non-allergenic tape; used to discover the cause of contact dermatitis
intradermal test - ANSWER allergy test in which dilute solutions of allergens are introduced into the skin
of the inner forearm or upper back with a fine-gauge needle
RAST test - ANSWER blood test used to determine the substances a subject is allergic to
different from a skin allergy test, which determines allergy by the reaction of a person's skin to different
substances
needle biopsy - ANSWER performed by removing tissue with a needle inserted through the skin into the
growth or area
M.A. role in assisting with a needle biopsy - ANSWER Prepare the sterile field and instruments.
Position and drape the patient.
Cleanse the biopsy site. Prepare the patient's skin.
Perform a surgical scrub and don sterile gloves if you will be handing the physician's sterile instruments.
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