Larynx and airway: Myer-Cotton grading: practice question

A ENT 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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ENT · Larynx and airway: Myer-Cotton grading

Sample item

In a child with post-intubation subglottic stenosis, sizing with endotracheal tubes shows about 60 percent luminal obstruction. What is the Myer-Cotton grade?

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

The answer and the reasoning

B. Grade II

Myer-Cotton grades subglottic stenosis by luminal obstruction: grade I up to 50 percent, grade II 51 to 70 percent, grade III 71 to 99 percent, and grade IV no detectable lumen. Grade guides the choice between endoscopic dilatation and open reconstruction.

Option by option

  • A. Grade III

    Grade III is 71 to 99 percent obstruction.

  • B. Grade II (correct)

    Correct. A 51 to 70 percent obstruction is grade II.

  • C. Grade I

    Grade I is up to 50 percent obstruction.

  • D. Grade IV

    Grade IV means complete obstruction with no lumen.

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 ENT question

What is the answer to this ENT question?

The best answer is B, Grade II. Myer-Cotton grades subglottic stenosis by luminal obstruction: grade I up to 50 percent, grade II 51 to 70 percent, grade III 71 to 99 percent, and grade IV no detectable lumen.

Why is "Grade III" not the answer?

Grade III is 71 to 99 percent obstruction.

Why is "Grade I" not the answer?

Grade I is up to 50 percent obstruction.

Why is "Grade IV" not the answer?

Grade IV means complete obstruction with no lumen.

What concept does this question test?

It tests Larynx and airway: Myer-Cotton grading in ENT. Grade guides the choice between endoscopic dilatation and open reconstruction.

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 Larynx and airway: Myer-Cotton grading?

Learn tuning fork results and audiogram patterns by sketching them. Then use the flashcards and the other ENT 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.