Labour: Robson classification: 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 · Labour: Robson classification

Sample item

A labour ward audit uses the Robson ten-group classification. Which patients make up group 1?

AAll women with breech presentationBAll women with a previous caesarean sectionCMultiparous women without a previous scar in spontaneous labourDNulliparous women with a single cephalic pregnancy at 37 weeks or more in spontaneous labour

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

The answer and the reasoning

D. Nulliparous women with a single cephalic pregnancy at 37 weeks or more in spontaneous labour

The Robson classification groups women by parity, previous caesarean, onset of labour, fetal lie, number of fetuses and gestation. Group 1 is nulliparous, singleton, cephalic, term, spontaneous labour, and the caesarean rate in this group is a sensitive indicator of labour management. Group 5, previous caesarean at term, is usually the largest contributor to the overall rate.

Option by option

A. All women with breech presentation
Breech presentations are groups 6 and 7 depending on parity.
B. All women with a previous caesarean section
Women with a previous caesarean are in group 5.
C. Multiparous women without a previous scar in spontaneous labour
Multiparous women without a scar in spontaneous labour form group 3.
D. Nulliparous women with a single cephalic pregnancy at 37 weeks or more in spontaneous labour (correct)
Correct. Group 1 is nulliparous term singleton cephalic spontaneous labour.

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 D, Nulliparous women with a single cephalic pregnancy at 37 weeks or more in spontaneous labour. The Robson classification groups women by parity, previous caesarean, onset of labour, fetal lie, number of fetuses and gestation.

Why is "All women with breech presentation" not the answer?

Breech presentations are groups 6 and 7 depending on parity.

Why is "All women with a previous caesarean section" not the answer?

Women with a previous caesarean are in group 5.

Why is "Multiparous women without a previous scar in spontaneous labour" not the answer?

Multiparous women without a scar in spontaneous labour form group 3.

What concept does this question test?

It tests Labour: Robson classification in OBG. Group 1 is nulliparous, singleton, cephalic, term, spontaneous labour, and the caesarean rate in this group is a sensitive indicator of labour management. Group 5, previous caesarean at term, is usually the largest contributor to the overall rate.

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 Labour: Robson classification?

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.