Epidemiology: 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.

Try it

PSM · Epidemiology

Sample item

What describes constant usual presence of a disease in an area?

AOutbreakBEndemicityCPandemicDSporadic extinction

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

The answer and the reasoning

B. Endemicity

This Epidemiology item is answered by Endemicity, which directly follows the principle relevant to the observation, documentation, or public-health action described.

Option by option

A. Outbreak
Outbreak may be associated with another setting but is not the best fit here.
B. Endemicity (correct)
Correct. Endemicity most directly matches the defining clue in this item.
C. Pandemic
Pandemic does not establish the requested epidemiology conclusion.
D. Sporadic extinction
Sporadic extinction does not explain the stated finding or appropriate intervention.

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 PSM question

What is the answer to this PSM question?

The best answer is B, Endemicity. This Epidemiology item is answered by Endemicity, which directly follows the principle relevant to the observation, documentation, or public-health action described.

Why is "Outbreak" not the answer?

Outbreak may be associated with another setting but is not the best fit here.

Why is "Pandemic" not the answer?

Pandemic does not establish the requested epidemiology conclusion.

Why is "Sporadic extinction" not the answer?

Sporadic extinction does not explain the stated finding or appropriate intervention.

What concept does this question test?

It tests Epidemiology in PSM. The correct option holds because: Correct. Endemicity most directly matches the defining clue in this item.

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 Epidemiology?

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.