Complications, recovery, and safety culture: curriculum recognition: 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 · Complications, recovery, and safety culture: curriculum recognition

Sample item

While running on pipeline gas, the oxygen failure alarm sounds on the anaesthesia machine, the pipeline oxygen pressure reads zero and the flow of nitrous oxide stops automatically. What is the first action?

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

The answer and the reasoning

C. Open the reserve oxygen cylinder and disconnect the pipeline

A pipeline failure is managed by switching to the machine's reserve oxygen cylinder and disconnecting the pipeline, so oxygen is not lost back through the system. The fail-safe device cuts off nitrous oxide when oxygen pressure falls. The patient should be checked for adequate oxygenation, and the failure reported to the engineers.

Option by option

  • A. Switch off the vaporiser and wake the patient immediately

    Waking the patient is neither necessary nor possible immediately, and the oxygen source is the priority.

  • B. Silence the alarm and carry on with the present settings

    Ignoring the alarm leaves the patient without an oxygen source.

  • C. Open the reserve oxygen cylinder and disconnect the pipeline (correct)

    Correct. The cylinder supplies oxygen, and disconnecting the pipeline prevents loss of gas.

  • D. Increase the flow of air through the pipeline and continue

    Pipeline air depends on the same failing system and does not restore oxygen.

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.

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Questions about this Anaesthesia question

What is the answer to this Anaesthesia question?

The best answer is C, Open the reserve oxygen cylinder and disconnect the pipeline. A pipeline failure is managed by switching to the machine's reserve oxygen cylinder and disconnecting the pipeline, so oxygen is not lost back through the system.

Why is "Switch off the vaporiser and wake the patient immediately" not the answer?

Waking the patient is neither necessary nor possible immediately, and the oxygen source is the priority.

Why is "Silence the alarm and carry on with the present settings" not the answer?

Ignoring the alarm leaves the patient without an oxygen source.

Why is "Increase the flow of air through the pipeline and continue" not the answer?

Pipeline air depends on the same failing system and does not restore oxygen.

What concept does this question test?

It tests Complications, recovery, and safety culture: curriculum recognition in Anaesthesia. The fail-safe device cuts off nitrous oxide when oxygen pressure falls. The patient should be checked for adequate oxygenation, and the failure reported to the engineers.

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, recovery, and safety culture: curriculum recognition?

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.