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Question: 1 / 400

Which of the following is a sign of an allergic reaction during a patch test?

Itching, redness, or swelling in the test area

An allergic reaction during a patch test is indicated by symptoms such as itching, redness, or swelling in the area where the allergy-inducing substance was applied. These signs are the body's immune response to a substance it perceives as harmful, reflecting that the skin is reacting to allergens. Itching indicates irritation, while redness and swelling are typical signs of inflammation.

In contrast, changes such as immediate color change in the hair, increased hair growth, or improved scalp sensitivity do not typically reflect an allergic reaction. Instead, they may suggest other types of changes or responses that don't involve an allergy. Therefore, the presence of itching, redness, or swelling serves as crucial indicators for professionals conducting patch tests to assess potential allergies effectively.

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Immediate color change in the hair

Increased hair growth

Improved scalp sensitivity

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