Contrast media: 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 · Contrast media

Sample item

What contrast agent class is used for MRI enhancement?

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

The answer and the reasoning

A. Gadolinium-based agent

Gadolinium-based agents alter local magnetic relaxation properties and can highlight perfusion, inflammation, blood-brain barrier disruption, and vascularized lesions on MRI.

Option by option

  • A. Gadolinium-based agent (correct)

    Correct: gadolinium agents are used for MRI contrast enhancement.

  • B. Technetium tracer

    Technetium is used in nuclear medicine imaging.

  • C. Iodinated oral contrast only

    Iodinated agents are primarily CT and fluoroscopic contrast agents.

  • D. Barium sulfate

    Barium sulfate is used for gastrointestinal fluoroscopy.

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 A, Gadolinium-based agent. Gadolinium-based agents alter local magnetic relaxation properties and can highlight perfusion, inflammation, blood-brain barrier disruption, and vascularized lesions on MRI.

Why is "Technetium tracer" not the answer?

Technetium is used in nuclear medicine imaging.

Why is "Iodinated oral contrast only" not the answer?

Iodinated agents are primarily CT and fluoroscopic contrast agents.

Why is "Barium sulfate" not the answer?

Barium sulfate is used for gastrointestinal fluoroscopy.

What concept does this question test?

It tests Contrast media in Radiology. The correct option holds because: Correct: gadolinium agents are used for MRI contrast enhancement.

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 Contrast media?

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.