Doppler ultrasound: DVT: 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 · Doppler ultrasound: DVT

Sample item

What is the key compression-ultrasound criterion for proximal deep-vein thrombosis?

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

The answer and the reasoning

D. Failure of the vein to compress fully

A normal vein should collapse completely under probe pressure. Noncompressibility is the central ultrasound sign of deep-vein thrombosis.

Option by option

  • A. Complete venous coaptation under probe pressure

    Complete coaptation is the expected finding in a normal compressible vein.

  • B. Arterial pulsatility in the vein

    Pulsatility is not the defining compression criterion.

  • C. Increased portal venous velocity after meals

    Portal venous velocity concerns hepatic Doppler assessment rather than leg-vein compression.

  • D. Failure of the vein to compress fully (correct)

    Correct. Thrombus prevents complete venous coaptation.

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.

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Questions about this Radiology question

What is the answer to this Radiology question?

The best answer is D, Failure of the vein to compress fully. A normal vein should collapse completely under probe pressure.

Why is "Complete venous coaptation under probe pressure" not the answer?

Complete coaptation is the expected finding in a normal compressible vein.

Why is "Arterial pulsatility in the vein" not the answer?

Pulsatility is not the defining compression criterion.

Why is "Increased portal venous velocity after meals" not the answer?

Portal venous velocity concerns hepatic Doppler assessment rather than leg-vein compression.

What concept does this question test?

It tests Doppler ultrasound: DVT in Radiology. Noncompressibility is the central ultrasound sign of deep-vein thrombosis.

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 Doppler ultrasound: DVT?

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.