Antenatal care: uterine artery Doppler: 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: uterine artery Doppler

Sample item

Persistent bilateral uterine artery notching at 20 to 24 weeks is a marker for:

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

The answer and the reasoning

A. Increased risk of pre-eclampsia and growth restriction

Failure of trophoblastic invasion leaves high-resistance spiral arteries, giving raised uterine artery pulsatility index and an early diastolic notch. It identifies women at higher risk of pre-eclampsia, fetal growth restriction and placental abruption, who may benefit from low-dose aspirin.

Option by option

  • A. Increased risk of pre-eclampsia and growth restriction (correct)

    Correct. Notching reflects impaired placentation.

  • B. Fetal anaemia

    Fetal anaemia is detected by MCA Doppler.

  • C. Neural tube defects

    Neural tube defects are detected by AFP and anatomy scan.

  • D. Placenta praevia

    Placenta praevia is diagnosed by ultrasound location, not Doppler notching.

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 A, Increased risk of pre-eclampsia and growth restriction. Failure of trophoblastic invasion leaves high-resistance spiral arteries, giving raised uterine artery pulsatility index and an early diastolic notch.

Why is "Fetal anaemia" not the answer?

Fetal anaemia is detected by MCA Doppler.

Why is "Neural tube defects" not the answer?

Neural tube defects are detected by AFP and anatomy scan.

Why is "Placenta praevia" not the answer?

Placenta praevia is diagnosed by ultrasound location, not Doppler notching.

What concept does this question test?

It tests Antenatal care: uterine artery Doppler in OBG. It identifies women at higher risk of pre-eclampsia, fetal growth restriction and placental abruption, who may benefit from low-dose aspirin.

How hard is this question?

We tag it as a multi-step question: it asks you to combine more than one idea. 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: uterine artery Doppler?

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.