Malignant hyperthermia: 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 · Malignant hyperthermia

Sample item

Which sign should raise concern for malignant hyperthermia during anesthesia?

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

The answer and the reasoning

A. Rapid rise in carbon dioxide with rigidity

Malignant hyperthermia causes uncontrolled skeletal-muscle metabolism with rising CO2, rigidity, acidosis, hyperthermia, and hyperkalemia after susceptible trigger exposure.

Option by option

  • A. Rapid rise in carbon dioxide with rigidity (correct)

    Correct: rising CO2 and rigidity are major warning signs.

  • B. Isolated rash from tape

    Tape rash is local contact irritation.

  • C. Mild hunger

    Hunger is nonspecific.

  • D. Gradual presbyopia

    Presbyopia is age-related near-focus loss.

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 A, Rapid rise in carbon dioxide with rigidity. Malignant hyperthermia causes uncontrolled skeletal-muscle metabolism with rising CO2, rigidity, acidosis, hyperthermia, and hyperkalemia after susceptible trigger exposure.

Why is "Isolated rash from tape" not the answer?

Tape rash is local contact irritation.

Why is "Mild hunger" not the answer?

Hunger is nonspecific.

Why is "Gradual presbyopia" not the answer?

Presbyopia is age-related near-focus loss.

What concept does this question test?

It tests Malignant hyperthermia in Anaesthesia. The correct option holds because: Correct: rising CO2 and rigidity are major warning signs.

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 Malignant hyperthermia?

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.