Contact dermatitis: practice question

A Dermatology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Dermatology · Contact dermatitis

Sample item

What is the mechanism of allergic contact dermatitis?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

A. Delayed type IV hypersensitivity

The relevant Contact dermatitis principle supports Delayed type IV hypersensitivity; it is the option that best explains the mechanism, physical finding, investigation, or safe management priority in the question.

Option by option

  • A. Delayed type IV hypersensitivity (correct)

    Correct. Delayed type IV hypersensitivity directly addresses the essential clue in this sample.

  • B. IgE-mediated type I response

    IgE-mediated type I response does not correspond to the stated contact dermatitis finding.

  • C. Antibody-mediated type II response

    Antibody-mediated type II response is not supported by the clinical description or management aim.

  • D. Immune-complex type III response

    Immune-complex type III response may apply to a different condition but is not the best response here.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

More Dermatology questions

Questions about this Dermatology question

What is the answer to this Dermatology question?

The best answer is A, Delayed type IV hypersensitivity. The relevant Contact dermatitis principle supports Delayed type IV hypersensitivity; it is the option that best explains the mechanism, physical finding, investigation, or safe management priority in the question.

Why is "IgE-mediated type I response" not the answer?

IgE-mediated type I response does not correspond to the stated contact dermatitis finding.

Why is "Antibody-mediated type II response" not the answer?

Antibody-mediated type II response is not supported by the clinical description or management aim.

Why is "Immune-complex type III response" not the answer?

Immune-complex type III response may apply to a different condition but is not the best response here.

What concept does this question test?

It tests Contact dermatitis in Dermatology. The correct option holds because: Correct. Delayed type IV hypersensitivity directly addresses the essential clue in this sample.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Contact dermatitis?

Learn each condition by its primary lesion, site and signature sign. Then use the flashcards and the other Dermatology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.