Crucial Exams

AAMA CMA Practice Question

A medical assistant administers a scratch test to a patient who has a history of mild environmental allergies. To ensure a reliable test outcome, the medical assistant should compare the test site reactions primarily to which of the following?

  • A clear test area located far from the allergen application sites to evaluate baseline skin conditions.

  • The area with the most intense reaction regardless of the substance applied, to determine the highest sensitivity.

  • Previous scratch test results, assuming the patient's condition has remained unchanged since the last test.

  • The histamine control, which provides a positive benchmark indicating an allergic reaction.

AAMA CMA
Clinical Competency
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