Cardiovascular physiology: practice question

A Physiology 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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Physiology · Cardiovascular physiology

Sample item

What are major determinants of arterial pressure?

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

The answer and the reasoning

A. Cardiac output and peripheral resistance

Mean arterial pressure is strongly determined by cardiac output and systemic vascular resistance, with blood volume and arterial compliance also influencing pressure.

Option by option

  • A. Cardiac output and peripheral resistance (correct)

    Correct: output and resistance are primary pressure determinants.

  • B. Glucose and sodium

    Glucose and sodium are not the principal immediate determinants.

  • C. Hemoglobin and platelets

    Hemoglobin and platelets do not directly determine arterial pressure.

  • D. Lung volume and pupil size

    Lung volume and pupil size do not define systemic arterial pressure.

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 Physiology question

What is the answer to this Physiology question?

The best answer is A, Cardiac output and peripheral resistance. Mean arterial pressure is strongly determined by cardiac output and systemic vascular resistance, with blood volume and arterial compliance also influencing pressure.

Why is "Glucose and sodium" not the answer?

Glucose and sodium are not the principal immediate determinants.

Why is "Hemoglobin and platelets" not the answer?

Hemoglobin and platelets do not directly determine arterial pressure.

Why is "Lung volume and pupil size" not the answer?

Lung volume and pupil size do not define systemic arterial pressure.

What concept does this question test?

It tests Cardiovascular physiology in Physiology. The correct option holds because: Correct: output and resistance are primary pressure determinants.

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 Cardiovascular physiology?

For each system, sketch the key graph (pressure–volume loop, oxygen dissociation curve, nephron handling) and explain it aloud. Then use the flashcards and the other Physiology 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.