STI: Amsel criteria: 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 · STI: Amsel criteria

Sample item

Which finding is not part of the Amsel criteria for diagnosing bacterial vaginosis?

AVaginal pH above 4.5BClue cells on wet mountCThick curdy white discharge adherent to the vaginal wallDPositive whiff test with potassium hydroxide

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

The answer and the reasoning

C. Thick curdy white discharge adherent to the vaginal wall

Amsel criteria are a thin homogeneous discharge, vaginal pH above 4.5, a positive whiff test and clue cells; three of four make the diagnosis. A thick curdy white discharge is the picture of candidiasis.

Option by option

A. Vaginal pH above 4.5
A raised pH is one of the Amsel criteria.
B. Clue cells on wet mount
Clue cells are one of the Amsel criteria.
C. Thick curdy white discharge adherent to the vaginal wall (correct)
Correct. A curdy adherent discharge belongs to candidiasis, not to the Amsel criteria.
D. Positive whiff test with potassium hydroxide
The whiff test is one of the Amsel criteria.

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.

Questions about this Dermatology question

What is the answer to this Dermatology question?

The best answer is C, Thick curdy white discharge adherent to the vaginal wall. Amsel criteria are a thin homogeneous discharge, vaginal pH above 4.

Why is "Vaginal pH above 4.5" not the answer?

A raised pH is one of the Amsel criteria.

Why is "Clue cells on wet mount" not the answer?

Clue cells are one of the Amsel criteria.

Why is "Positive whiff test with potassium hydroxide" not the answer?

The whiff test is one of the Amsel criteria.

What concept does this question test?

It tests STI: Amsel criteria in Dermatology. 5, a positive whiff test and clue cells; three of four make the diagnosis. A thick curdy white discharge is the picture of candidiasis.

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 STI: Amsel criteria?

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.