Regional anaesthesia: Bier's block tourniquet: 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 · Regional anaesthesia: Bier's block tourniquet

Sample item

What is the minimum tourniquet time before cuff deflation after Bier's block, to minimise toxicity?

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

The answer and the reasoning

D. 20 to 30 minutes

After 20 to 30 minutes enough drug has bound to the tissues that its release into the circulation is slow. Cuff deflation is staged, and the cuff should never be released earlier than 20 minutes.

Option by option

  • A. No minimum

    A minimum is mandatory.

  • B. 5 minutes

    5 minutes is too short.

  • C. 2 minutes

    2 minutes would release a toxic bolus.

  • D. 20 to 30 minutes (correct)

    Correct. 20 to 30 minutes is the minimum.

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 D, 20 to 30 minutes. After 20 to 30 minutes enough drug has bound to the tissues that its release into the circulation is slow.

Why is "No minimum" not the answer?

A minimum is mandatory.

Why is "5 minutes" not the answer?

5 minutes is too short.

Why is "2 minutes" not the answer?

2 minutes would release a toxic bolus.

What concept does this question test?

It tests Regional anaesthesia: Bier's block tourniquet in Anaesthesia. Cuff deflation is staged, and the cuff should never be released earlier than 20 minutes.

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 Regional anaesthesia: Bier's block tourniquet?

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.