Haemodynamics: practice question

A Pathology 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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Pathology · Haemodynamics

Sample item

Which haemodynamic process makes inflamed tissue red and warm through active arteriolar dilation?

AIntravascular thrombosisBComplete cessation of perfusionCPassive venous congestionDHyperaemia

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

The answer and the reasoning

D. Hyperaemia

Hyperaemia is active arteriolar dilation that increases blood flow and produces red warm tissue, unlike passive congestion from impaired venous drainage.

Option by option

A. Intravascular thrombosis
Clot formation is thrombosis.
B. Complete cessation of perfusion
No perfusion is ischaemia.
C. Passive venous congestion
Congestion is passive venous accumulation.
D. Hyperaemia (correct)
Correct: active arterial inflow defines hyperaemia.

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 Pathology question

What is the answer to this Pathology question?

The best answer is D, Hyperaemia. Hyperaemia is active arteriolar dilation that increases blood flow and produces red warm tissue, unlike passive congestion from impaired venous drainage.

Why is "Intravascular thrombosis" not the answer?

Clot formation is thrombosis.

Why is "Complete cessation of perfusion" not the answer?

No perfusion is ischaemia.

Why is "Passive venous congestion" not the answer?

Congestion is passive venous accumulation.

What concept does this question test?

It tests Haemodynamics in Pathology. The correct option holds because: Correct: active arterial inflow defines hyperaemia.

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 Haemodynamics?

Learn each disease as a bundle: cause, key histology, markers, and the clinical hallmark. Then use the flashcards and the other Pathology 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.