Nuclear medicine: MUGA scan: 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: MUGA scan

Sample item

A woman with breast cancer is to receive trastuzumab and needs a reproducible baseline left ventricular ejection fraction. Which nuclear study provides this?

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

The answer and the reasoning

C. Gated blood pool (MUGA) scan with technetium-labelled red cells

A gated equilibrium blood pool study counts the radioactivity in the ventricle across the cardiac cycle and calculates the ejection fraction with little geometric assumption. It is used to monitor cardiotoxic chemotherapy.

Option by option

  • A. Hepatobiliary scan

    A hepatobiliary scan evaluates bile flow.

  • B. Thyroid uptake scan

    A thyroid scan evaluates the thyroid.

  • C. Gated blood pool (MUGA) scan with technetium-labelled red cells (correct)

    Correct. MUGA gives a reproducible ejection fraction.

  • D. Bone scan with technetium-MDP

    A bone scan evaluates the skeleton.

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 C, Gated blood pool (MUGA) scan with technetium-labelled red cells. A gated equilibrium blood pool study counts the radioactivity in the ventricle across the cardiac cycle and calculates the ejection fraction with little geometric assumption.

Why is "Hepatobiliary scan" not the answer?

A hepatobiliary scan evaluates bile flow.

Why is "Thyroid uptake scan" not the answer?

A thyroid scan evaluates the thyroid.

Why is "Bone scan with technetium-MDP" not the answer?

A bone scan evaluates the skeleton.

What concept does this question test?

It tests Nuclear medicine: MUGA scan in Radiology. It is used to monitor cardiotoxic chemotherapy.

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: MUGA scan?

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.