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

What mechanism causes oedema in nephrotic syndrome?

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

The answer and the reasoning

A. Reduced plasma oncotic pressure from albumin loss

Heavy urinary protein loss lowers serum albumin and plasma oncotic pressure, allowing fluid to leave vessels and accumulate in tissues.

Option by option

  • A. Reduced plasma oncotic pressure from albumin loss (correct)

    Correct: low albumin reduces intravascular oncotic pull.

  • B. Excess red-cell production

    Erythrocytosis is unrelated.

  • C. Vasoconstriction of afferent arterioles

    Afferent vasoconstriction is not the primary mechanism.

  • D. Increased arterial oxygen content

    Oxygen content does not cause nephrotic oedema.

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 Pathology question

What is the answer to this Pathology question?

The best answer is A, Reduced plasma oncotic pressure from albumin loss. Heavy urinary protein loss lowers serum albumin and plasma oncotic pressure, allowing fluid to leave vessels and accumulate in tissues.

Why is "Excess red-cell production" not the answer?

Erythrocytosis is unrelated.

Why is "Vasoconstriction of afferent arterioles" not the answer?

Afferent vasoconstriction is not the primary mechanism.

Why is "Increased arterial oxygen content" not the answer?

Oxygen content does not cause nephrotic oedema.

What concept does this question test?

It tests Haemodynamics in Pathology. The correct option holds because: Correct: low albumin reduces intravascular oncotic pull.

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.