Critical care: burns fluid resuscitation: 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 · Critical care: burns fluid resuscitation

Sample item

A 70 kg adult has 40 percent total body surface area burns. Using the Parkland formula (4 mL/kg/%TBSA), what volume is given in the first 8 hours?

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

The answer and the reasoning

A. 5600 mL

The Parkland formula gives 4 mL times weight in kg times percent burn over 24 hours, which is 4 times 70 times 40, or 11,200 mL. Half is given in the first 8 hours from the time of burn, which equals 5600 mL. Lactated Ringer's is used and the rate is titrated to urine output.

Option by option

  • A. 5600 mL (correct)

    Correct. Half of 11,200 mL is given in the first 8 hours.

  • B. 2800 mL

    This is a quarter of the total volume.

  • C. 11,200 mL

    This is the total for 24 hours.

  • D. 1120 mL

    This is one tenth of the 24-hour total and has no basis in the formula.

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 Anaesthesia question

What is the answer to this Anaesthesia question?

The best answer is A, 5600 mL. The Parkland formula gives 4 mL times weight in kg times percent burn over 24 hours, which is 4 times 70 times 40, or 11,200 mL.

Why is "2800 mL" not the answer?

This is a quarter of the total volume.

Why is "11,200 mL" not the answer?

This is the total for 24 hours.

Why is "1120 mL" not the answer?

This is one tenth of the 24-hour total and has no basis in the formula.

What concept does this question test?

It tests Critical care: burns fluid resuscitation in Anaesthesia. Half is given in the first 8 hours from the time of burn, which equals 5600 mL. Lactated Ringer's is used and the rate is titrated to urine output.

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 Critical care: burns fluid resuscitation?

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.