Radiation protection: practice question

A Radiology 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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Radiology · Radiation protection

Sample item

What does the ALARA principle require in diagnostic imaging?

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

The answer and the reasoning

B. Keep radiation exposure as low as reasonably achievable

ALARA requires justified examinations and dose optimization so radiation exposure is minimized while preserving sufficient diagnostic image quality.

Option by option

  • A. Use the maximum exposure for every study

    Higher exposure is not automatically better or justified.

  • B. Keep radiation exposure as low as reasonably achievable (correct)

    Correct: optimization balances image adequacy with the lowest practical dose.

  • C. Avoid shielding and dose optimization

    Protection and optimization remain important.

  • D. Repeat all images regardless of quality

    Repeat imaging should be avoided unless clinically necessary.

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 Radiology question

What is the answer to this Radiology question?

The best answer is B, Keep radiation exposure as low as reasonably achievable. ALARA requires justified examinations and dose optimization so radiation exposure is minimized while preserving sufficient diagnostic image quality.

Why is "Use the maximum exposure for every study" not the answer?

Higher exposure is not automatically better or justified.

Why is "Avoid shielding and dose optimization" not the answer?

Protection and optimization remain important.

Why is "Repeat all images regardless of quality" not the answer?

Repeat imaging should be avoided unless clinically necessary.

What concept does this question test?

It tests Radiation protection in Radiology. The correct option holds because: Correct: optimization balances image adequacy with the lowest practical dose.

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 Radiation protection?

Learn signs with the image, and the disease they point to. Then use the flashcards and the other Radiology 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.