Antenatal care: 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 · Antenatal care

Sample item

A woman's last menstrual period began on 10 January 2026. Using Naegele's rule, what is her expected date of delivery?

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

The answer and the reasoning

B. 17 October 2026

Naegele's rule: add 7 days to the first day of the last menstrual period and subtract 3 months (or add 9). 10 January plus 7 days is 17 January; adding 9 months gives 17 October 2026. It assumes a regular 28-day cycle.

Option by option

  • A. 24 October 2026

    24 October adds 14 days.

  • B. 17 October 2026 (correct)

    Correct.

  • C. 10 October 2026

    10 October forgets to add 7 days.

  • D. 3 October 2026

    3 October subtracts 7 days instead of adding.

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 OBG questions

Questions about this OBG question

What is the answer to this OBG question?

The best answer is B, 17 October 2026. Naegele's rule: add 7 days to the first day of the last menstrual period and subtract 3 months (or add 9).

Why is "24 October 2026" not the answer?

24 October adds 14 days.

Why is "10 October 2026" not the answer?

10 October forgets to add 7 days.

Why is "3 October 2026" not the answer?

3 October subtracts 7 days instead of adding.

What concept does this question test?

It tests Antenatal care in OBG. 10 January plus 7 days is 17 January; adding 9 months gives 17 October 2026. It assumes a regular 28-day cycle.

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 Antenatal care?

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.