Rh prophylaxis: practice question

A OBG 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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OBG · Rh prophylaxis

Sample item

Why is anti-D immunoglobulin given to eligible Rh-negative pregnant patients?

ATo reduce Rh sensitizationBTo treat iron deficiencyCTo induce labourDTo prevent all infections

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

The answer and the reasoning

A. To reduce Rh sensitization

Anti-D reduces maternal sensitization to Rh-positive fetal red cells, lowering risk of hemolytic disease in a future Rh-positive pregnancy when given according to local protocols.

Option by option

A. To reduce Rh sensitization (correct)
Correct: anti-D prevents maternal Rh alloimmunization.
B. To treat iron deficiency
Iron deficiency needs iron replacement, not anti-D.
C. To induce labour
Anti-D is not a labour-induction medicine.
D. To prevent all infections
It does not prevent infections.

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.

Questions about this OBG question

What is the answer to this OBG question?

The best answer is A, To reduce Rh sensitization. Anti-D reduces maternal sensitization to Rh-positive fetal red cells, lowering risk of hemolytic disease in a future Rh-positive pregnancy when given according to local protocols.

Why is "To treat iron deficiency" not the answer?

Iron deficiency needs iron replacement, not anti-D.

Why is "To induce labour" not the answer?

Anti-D is not a labour-induction medicine.

Why is "To prevent all infections" not the answer?

It does not prevent infections.

What concept does this question test?

It tests Rh prophylaxis in OBG. The correct option holds because: Correct: anti-D prevents maternal Rh alloimmunization.

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 Rh prophylaxis?

Learn management algorithms as steps: PPH, eclampsia, ectopic pregnancy. Then use the flashcards and the other OBG 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.