Ultrasound: practice question

A Radiology 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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Radiology · Ultrasound

Sample item

What Doppler change is expected distal to a severe arterial stenosis?

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

The answer and the reasoning

D. Turbulent high-velocity flow at stenosis

A stenosis narrows the lumen and accelerates flow at the lesion with spectral broadening and turbulence distal to it on Doppler interrogation.

Option by option

  • A. Bright posterior enhancement

    Enhancement is B-mode acoustic physics.

  • B. No spectral waveform change ever

    Waveforms do change with significant narrowing.

  • C. Uniform low velocity before stenosis only

    Prestenotic flow is not the defining finding.

  • D. Turbulent high-velocity flow at stenosis (correct)

    Correct: velocity rise and turbulence support stenosis.

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 Radiology questions

Questions about this Radiology question

What is the answer to this Radiology question?

The best answer is D, Turbulent high-velocity flow at stenosis. A stenosis narrows the lumen and accelerates flow at the lesion with spectral broadening and turbulence distal to it on Doppler interrogation.

Why is "Bright posterior enhancement" not the answer?

Enhancement is B-mode acoustic physics.

Why is "No spectral waveform change ever" not the answer?

Waveforms do change with significant narrowing.

Why is "Uniform low velocity before stenosis only" not the answer?

Prestenotic flow is not the defining finding.

What concept does this question test?

It tests Ultrasound in Radiology. The correct option holds because: Correct: velocity rise and turbulence support stenosis.

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 Ultrasound?

Learn signs with the image, and the disease they point to. Then use the flashcards and the other Radiology 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.