Local anesthetics: 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 · Local anesthetics

Sample item

How do local anesthetics primarily block nerve conduction?

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

The answer and the reasoning

C. Block voltage-gated sodium channels

The defining Local anesthetics feature supports Block voltage-gated sodium channels; this conclusion most directly matches the clinical presentation and the usual principle being assessed.

Option by option

  • A. Activate potassium pumps

    Activate potassium pumps does not fit the central local anesthetics clue.

  • B. Increase myelin growth

    Increase myelin growth is inconsistent with the priority or diagnosis described.

  • C. Block voltage-gated sodium channels (correct)

    Correct. Block voltage-gated sodium channels is supported by the key finding in this scenario.

  • D. Destroy acetylcholine

    Destroy acetylcholine may be relevant in another setting but is not the best answer here.

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 C, Block voltage-gated sodium channels. The defining Local anesthetics feature supports Block voltage-gated sodium channels; this conclusion most directly matches the clinical presentation and the usual principle being assessed.

Why is "Activate potassium pumps" not the answer?

Activate potassium pumps does not fit the central local anesthetics clue.

Why is "Increase myelin growth" not the answer?

Increase myelin growth is inconsistent with the priority or diagnosis described.

Why is "Destroy acetylcholine" not the answer?

Destroy acetylcholine may be relevant in another setting but is not the best answer here.

What concept does this question test?

It tests Local anesthetics in Anaesthesia. The correct option holds because: Correct. Block voltage-gated sodium channels is supported by the key finding in this scenario.

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 Local anesthetics?

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.