Diarrhea: practice question

A Pediatrics 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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Pediatrics · Diarrhea

Sample item

Which solute in oral rehydration solution enables glucose-coupled water absorption?

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

The answer and the reasoning

D. Sodium

Sodium and glucose are co-transported across intestinal epithelium, drawing water with them and making oral rehydration solution effective during diarrheal dehydration.

Option by option

  • A. Calcium

    Calcium is not the critical ORS co-transport solute.

  • B. Bilirubin

    Bilirubin is a heme-breakdown pigment, not an ORS ingredient.

  • C. Iron

    Iron does not drive the glucose-sodium absorption mechanism.

  • D. Sodium (correct)

    Correct: sodium is coupled with glucose to promote water absorption.

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 Pediatrics questions

Questions about this Pediatrics question

What is the answer to this Pediatrics question?

The best answer is D, Sodium. Sodium and glucose are co-transported across intestinal epithelium, drawing water with them and making oral rehydration solution effective during diarrheal dehydration.

Why is "Calcium" not the answer?

Calcium is not the critical ORS co-transport solute.

Why is "Bilirubin" not the answer?

Bilirubin is a heme-breakdown pigment, not an ORS ingredient.

Why is "Iron" not the answer?

Iron does not drive the glucose-sodium absorption mechanism.

What concept does this question test?

It tests Diarrhea in Pediatrics. The correct option holds because: Correct: sodium is coupled with glucose to promote water absorption.

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 Diarrhea?

Memorise milestones and the vaccine schedule as tables and revise them often. Then use the flashcards and the other Pediatrics 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.