Special anaesthesia: MRI suite: 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 · Special anaesthesia: MRI suite

Sample item

A child needs general anaesthesia in the MRI suite. Which precaution is essential?

ATake the usual steel oxygen cylinder into the scanner roomBUse the standard theatre ventilator placed next to the magnetCUse MR-conditional monitors, ventilator and non-ferromagnetic equipmentDUse standard ECG electrodes with long looped cables

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

The answer and the reasoning

C. Use MR-conditional monitors, ventilator and non-ferromagnetic equipment

The strong magnetic field turns ferromagnetic objects, such as steel cylinders and laryngoscopes, into dangerous projectiles. Equipment must be MR-conditional, and monitoring cables should be short and not looped to avoid burns. Pacemakers and implants should be screened before entry.

Option by option

A. Take the usual steel oxygen cylinder into the scanner room
A steel cylinder can become a projectile in the magnetic field.
B. Use the standard theatre ventilator placed next to the magnet
A standard ventilator contains ferromagnetic parts and may malfunction near the magnet.
C. Use MR-conditional monitors, ventilator and non-ferromagnetic equipment (correct)
Correct. MR-conditional equipment prevents projectile injury and malfunction.
D. Use standard ECG electrodes with long looped cables
Looped cables can heat and cause burns.

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.

Questions about this Anaesthesia question

What is the answer to this Anaesthesia question?

The best answer is C, Use MR-conditional monitors, ventilator and non-ferromagnetic equipment. The strong magnetic field turns ferromagnetic objects, such as steel cylinders and laryngoscopes, into dangerous projectiles.

Why is "Take the usual steel oxygen cylinder into the scanner room" not the answer?

A steel cylinder can become a projectile in the magnetic field.

Why is "Use the standard theatre ventilator placed next to the magnet" not the answer?

A standard ventilator contains ferromagnetic parts and may malfunction near the magnet.

Why is "Use standard ECG electrodes with long looped cables" not the answer?

Looped cables can heat and cause burns.

What concept does this question test?

It tests Special anaesthesia: MRI suite in Anaesthesia. Equipment must be MR-conditional, and monitoring cables should be short and not looped to avoid burns. Pacemakers and implants should be screened before entry.

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 Special anaesthesia: MRI suite?

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.