Rheumatology: practice question

A General Medicine 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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General Medicine · Rheumatology

Sample item

A 24-year-old woman has a malar rash, symmetrical arthralgia and new proteinuria. Which autoantibody best correlates with lupus nephritis and disease activity?

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

The answer and the reasoning

C. Anti-double-stranded DNA antibody

The picture is systemic lupus erythematosus with renal involvement. Anti-dsDNA antibodies are specific for lupus, rise with disease activity and are associated with nephritis, so titres are followed along with complement levels.

Option by option

  • A. Anti-centromere antibody

    Anti-centromere antibodies are linked to limited cutaneous systemic sclerosis.

  • B. Anti-Jo-1 antibody

    Anti-Jo-1 antibodies are seen in polymyositis with interstitial lung disease and the antisynthetase syndrome.

  • C. Anti-double-stranded DNA antibody (correct)

    Correct. Rising anti-dsDNA titres with low complement track lupus activity and nephritis.

  • D. Anti-histone antibody

    Anti-histone antibodies characterise drug-induced lupus, which spares the kidney.

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 General Medicine questions

Questions about this General Medicine question

What is the answer to this General Medicine question?

The best answer is C, Anti-double-stranded DNA antibody. The picture is systemic lupus erythematosus with renal involvement.

Why is "Anti-centromere antibody" not the answer?

Anti-centromere antibodies are linked to limited cutaneous systemic sclerosis.

Why is "Anti-Jo-1 antibody" not the answer?

Anti-Jo-1 antibodies are seen in polymyositis with interstitial lung disease and the antisynthetase syndrome.

Why is "Anti-histone antibody" not the answer?

Anti-histone antibodies characterise drug-induced lupus, which spares the kidney.

What concept does this question test?

It tests Rheumatology in General Medicine. Anti-dsDNA antibodies are specific for lupus, rise with disease activity and are associated with nephritis, so titres are followed along with complement levels.

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 Rheumatology?

For each disease know the classic presentation, the best test, and the first-line treatment. Then use the flashcards and the other General Medicine 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.