Occupational and Environmental Health: Recognizing and Preventing Disease and Injury - Multiple Choice Questions - Learn & Prevent

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What kind of reaction does allergic contact dermatitis involve?

  1. Type III immune reaction

  2. Cell-mediated immune reaction

  3. Antibody-mediated immune reaction

  4. Non-immunologic reaction

The correct answer is: Cell-mediated immune reaction

Allergic contact dermatitis is a type of skin reaction caused by exposure to an allergen. This exposure triggers an immune response in the body, specifically a cell-mediated immune reaction. This means that the immune system activates specific cells to attack the allergen, resulting in inflammation and other symptoms. Option A, a Type III immune reaction, involves the formation of immune complexes that can damage tissues and is not typically involved in allergic contact dermatitis. Option C, an antibody-mediated immune reaction, also does not accurately describe the immune response involved in allergic contact dermatitis. Option D, a non-immunologic reaction, suggests a reaction that does not involve the immune system, which is not the case in allergic contact dermatitis. Therefore, option B, a cell-mediated immune reaction, is the most appropriate answer.

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