Nuclear medicine: 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 · Nuclear medicine

Sample item

What imaging principle is used by PET scans?

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

The answer and the reasoning

B. Detection of positron-emitting tracer activity

The essential Nuclear medicine principle supports Detection of positron-emitting tracer activity; it is the option that most directly explains the image characteristic, safe modality choice, or oral-health finding described.

Option by option

  • A. Plain X-ray absorption only

    Plain X-ray absorption only can be useful elsewhere but is not the best answer here.

  • B. Detection of positron-emitting tracer activity (correct)

    Correct. Detection of positron-emitting tracer activity matches the decisive detail in this sample.

  • C. Reflection of ultrasound waves

    Reflection of ultrasound waves does not fit the stated nuclear medicine feature.

  • D. Magnetic field alignment only

    Magnetic field alignment only is unsupported by the imaging or dental information provided.

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, Detection of positron-emitting tracer activity. The essential Nuclear medicine principle supports Detection of positron-emitting tracer activity; it is the option that most directly explains the image characteristic, safe modality choice, or oral-health finding described.

Why is "Plain X-ray absorption only" not the answer?

Plain X-ray absorption only can be useful elsewhere but is not the best answer here.

Why is "Reflection of ultrasound waves" not the answer?

Reflection of ultrasound waves does not fit the stated nuclear medicine feature.

Why is "Magnetic field alignment only" not the answer?

Magnetic field alignment only is unsupported by the imaging or dental information provided.

What concept does this question test?

It tests Nuclear medicine in Radiology. The correct option holds because: Correct. Detection of positron-emitting tracer activity matches the decisive detail in this sample.

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 Nuclear medicine?

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.