Complications of pregnancy: oligohydramnios: 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 · Complications of pregnancy: oligohydramnios

Sample item

A mid-trimester scan shows no amniotic fluid, absent fetal bladder and non-visualised kidneys. What is the most important cause of death in the newborn with this condition?

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

The answer and the reasoning

B. Pulmonary hypoplasia

Bilateral renal agenesis causes anhydramnios, and fetal lungs need amniotic fluid for normal development. Pulmonary hypoplasia is therefore the usual cause of death, as in Potter sequence.

Option by option

  • A. Neonatal sepsis

    Sepsis is not the main cause here.

  • B. Pulmonary hypoplasia (correct)

    Correct. Lack of fluid prevents lung development.

  • C. Intraventricular haemorrhage

    Intraventricular haemorrhage relates to prematurity, not to renal agenesis.

  • D. Necrotising enterocolitis

    Necrotising enterocolitis relates to prematurity and feeding.

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, Pulmonary hypoplasia. Bilateral renal agenesis causes anhydramnios, and fetal lungs need amniotic fluid for normal development.

Why is "Neonatal sepsis" not the answer?

Sepsis is not the main cause here.

Why is "Intraventricular haemorrhage" not the answer?

Intraventricular haemorrhage relates to prematurity, not to renal agenesis.

Why is "Necrotising enterocolitis" not the answer?

Necrotising enterocolitis relates to prematurity and feeding.

What concept does this question test?

It tests Complications of pregnancy: oligohydramnios in OBG. Pulmonary hypoplasia is therefore the usual cause of death, as in Potter sequence.

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 Complications of pregnancy: oligohydramnios?

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.