Dermatology: practice question

A General Medicine 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.

Try it

General Medicine · Dermatology

Sample item

What simple feature distinguishes a nonblanching purpuric rash?

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

The answer and the reasoning

B. It does not fade with pressure

Purpura represents blood extravasated into the skin and therefore does not blanch when pressure is applied, unlike erythematous vasodilation.

Option by option

  • A. It occurs only on palms

    Purpura can occur at many skin sites.

  • B. It does not fade with pressure (correct)

    Correct: extravasated blood remains visible under pressure.

  • C. It always itches

    Purpura may or may not itch.

  • D. It becomes whiter with pressure

    Blanching is typical of vasodilatory erythema.

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 General Medicine questions

Questions about this General Medicine question

What is the answer to this General Medicine question?

The best answer is B, It does not fade with pressure. Purpura represents blood extravasated into the skin and therefore does not blanch when pressure is applied, unlike erythematous vasodilation.

Why is "It occurs only on palms" not the answer?

Purpura can occur at many skin sites.

Why is "It always itches" not the answer?

Purpura may or may not itch.

Why is "It becomes whiter with pressure" not the answer?

Blanching is typical of vasodilatory erythema.

What concept does this question test?

It tests Dermatology in General Medicine. The correct option holds because: Correct: extravasated blood remains visible under pressure.

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 Dermatology?

For each disease know the classic presentation, the best test, and the first-line treatment. Then use the flashcards and the other General Medicine 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.