Paediatric anaesthesia: practice question

A Anaesthesia 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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Anaesthesia · Paediatric anaesthesia

Sample item

Why do infants desaturate rapidly during apnoea?

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

The answer and the reasoning

B. High oxygen consumption with low functional residual capacity

Infants have high metabolic oxygen demand and a small oxygen reserve, making preoxygenation and airway management time critical.

Option by option

  • A. Low oxygen consumption

    Their oxygen use is relatively high.

  • B. High oxygen consumption with low functional residual capacity (correct)

    Correct. Demand is high and reserve is small.

  • C. Slow metabolic rate

    Metabolic rate is high.

  • D. Large oxygen reserve

    Functional reserve is small.

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 Anaesthesia questions

Questions about this Anaesthesia question

What is the answer to this Anaesthesia question?

The best answer is B, High oxygen consumption with low functional residual capacity. Infants have high metabolic oxygen demand and a small oxygen reserve, making preoxygenation and airway management time critical.

Why is "Low oxygen consumption" not the answer?

Their oxygen use is relatively high.

Why is "Slow metabolic rate" not the answer?

Metabolic rate is high.

Why is "Large oxygen reserve" not the answer?

Functional reserve is small.

What concept does this question test?

It tests Paediatric anaesthesia in Anaesthesia. The correct option holds because: Correct. Demand is high and reserve is small.

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 Paediatric anaesthesia?

Make a table of each agent, its key advantage and its main side effect. Then use the flashcards and the other Anaesthesia 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.