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.

Try it

Radiology · Radiation protection

Sample item

What is the greatest source of radiation exposure in fluoroscopy?

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

The answer and the reasoning

C. Prolonged beam-on time

Fluoroscopy dose rises with beam-on time, so pulsed fluoroscopy, collimation, and efficient technique are central dose-reduction strategies.

Option by option

  • A. Wearing a lead apron

    Aprons reduce staff exposure.

  • B. Viewing images after procedure

    Image review adds little exposure.

  • C. Prolonged beam-on time (correct)

    Correct: beam time is a major modifiable dose driver.

  • D. Using collimation

    Collimation reduces exposed field.

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 Radiology questions

Questions about this Radiology question

What is the answer to this Radiology question?

The best answer is C, Prolonged beam-on time. Fluoroscopy dose rises with beam-on time, so pulsed fluoroscopy, collimation, and efficient technique are central dose-reduction strategies.

Why is "Wearing a lead apron" not the answer?

Aprons reduce staff exposure.

Why is "Viewing images after procedure" not the answer?

Image review adds little exposure.

Why is "Using collimation" not the answer?

Collimation reduces exposed field.

What concept does this question test?

It tests Radiation protection in Radiology. The correct option holds because: Correct: beam time is a major modifiable dose driver.

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.