Complications: malignant hyperthermia treatment: 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.

Try it

Anaesthesia · Complications: malignant hyperthermia treatment

Sample item

Why should calcium channel blockers not be given together with dantrolene during MH treatment?

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

The answer and the reasoning

A. Risk of hyperkalaemia and cardiovascular collapse

Concurrent verapamil and dantrolene has caused hyperkalaemia and myocardial depression in animal and clinical reports. Arrhythmias are treated with amiodarone or beta blockers instead.

Option by option

  • A. Risk of hyperkalaemia and cardiovascular collapse (correct)

    Correct. The combination risks hyperkalaemia and collapse.

  • B. They cause malignant hyperthermia

    Calcium channel blockers do not trigger MH.

  • C. They reduce the potency of dantrolene

    Potency of dantrolene is not reduced.

  • D. They slow dantrolene metabolism

    Dantrolene metabolism is not the issue.

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, Risk of hyperkalaemia and cardiovascular collapse. Concurrent verapamil and dantrolene has caused hyperkalaemia and myocardial depression in animal and clinical reports.

Why is "They cause malignant hyperthermia" not the answer?

Calcium channel blockers do not trigger MH.

Why is "They reduce the potency of dantrolene" not the answer?

Potency of dantrolene is not reduced.

Why is "They slow dantrolene metabolism" not the answer?

Dantrolene metabolism is not the issue.

What concept does this question test?

It tests Complications: malignant hyperthermia treatment in Anaesthesia. Arrhythmias are treated with amiodarone or beta blockers instead.

How hard is this question?

We tag it as a multi-step question: it asks you to combine more than one idea. 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: malignant hyperthermia treatment?

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.