Regional anaesthesia: dermatomal levels: 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 · Regional anaesthesia: dermatomal levels

Sample item

Which sensory level is required for lower segment caesarean section under spinal anaesthesia?

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

The answer and the reasoning

D. T4

A block to T4 (nipple line) covers peritoneal traction and uterine manipulation. T10 (umbilicus) is adequate for TURP and lower limb surgery with some visceral coverage.

Option by option

  • A. S2

    S2 is for perineal surgery.

  • B. L1

    L1 is for inguinal region only.

  • C. T10

    T10 is adequate for TURP and hip surgery.

  • D. T4 (correct)

    Correct. T4 is required for caesarean section.

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 D, T4. A block to T4 (nipple line) covers peritoneal traction and uterine manipulation.

Why is "S2" not the answer?

S2 is for perineal surgery.

Why is "L1" not the answer?

L1 is for inguinal region only.

Why is "T10" not the answer?

T10 is adequate for TURP and hip surgery.

What concept does this question test?

It tests Regional anaesthesia: dermatomal levels in Anaesthesia. T10 (umbilicus) is adequate for TURP and lower limb surgery with some visceral coverage.

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 Regional anaesthesia: dermatomal levels?

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.