Levels of prevention: practice question

A PSM 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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PSM · Levels of prevention

Sample item

Which intervention is an example of primary prevention?

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

The answer and the reasoning

D. Immunization before disease occurs

Primary prevention acts before disease develops by reducing exposure or increasing resistance, as with vaccination, tobacco control, safe water, and health-promoting environments.

Option by option

  • A. Providing dialysis for renal failure

    Dialysis limits complications of established disease rather than preventing onset.

  • B. Detecting cervical changes on screening

    Screening detects early disease and is secondary prevention.

  • C. Rehabilitation after stroke

    Stroke rehabilitation is tertiary prevention.

  • D. Immunization before disease occurs (correct)

    Correct: immunization prevents disease before it starts.

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 PSM questions

Questions about this PSM question

What is the answer to this PSM question?

The best answer is D, Immunization before disease occurs. Primary prevention acts before disease develops by reducing exposure or increasing resistance, as with vaccination, tobacco control, safe water, and health-promoting environments.

Why is "Providing dialysis for renal failure" not the answer?

Dialysis limits complications of established disease rather than preventing onset.

Why is "Detecting cervical changes on screening" not the answer?

Screening detects early disease and is secondary prevention.

Why is "Rehabilitation after stroke" not the answer?

Stroke rehabilitation is tertiary prevention.

What concept does this question test?

It tests Levels of prevention in PSM. The correct option holds because: Correct: immunization prevents disease before it starts.

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 Levels of prevention?

Practise biostatistics with small calculations until sensitivity, predictive values and risk measures are automatic. Then use the flashcards and the other PSM 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.