Toxicology: practice question

A Forensic Medicine 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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Forensic Medicine · Toxicology

Sample item

What coloring is classically associated with carbon monoxide poisoning?

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

The answer and the reasoning

D. Cherry-red appearance

Carboxyhemoglobin may produce a cherry-red coloration, though this finding is inconsistent and diagnosis depends on exposure history and blood testing.

Option by option

  • A. Blue sclera

    Blue sclera has other connective-tissue associations.

  • B. Black tongue

    Black tongue is not a classic carbon monoxide sign.

  • C. Green nails

    Green nails do not indicate carbon monoxide poisoning.

  • D. Cherry-red appearance (correct)

    Correct: carboxyhemoglobin can create cherry-red coloration.

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 Forensic Medicine questions

Questions about this Forensic Medicine question

What is the answer to this Forensic Medicine question?

The best answer is D, Cherry-red appearance. Carboxyhemoglobin may produce a cherry-red coloration, though this finding is inconsistent and diagnosis depends on exposure history and blood testing.

Why is "Blue sclera" not the answer?

Blue sclera has other connective-tissue associations.

Why is "Black tongue" not the answer?

Black tongue is not a classic carbon monoxide sign.

Why is "Green nails" not the answer?

Green nails do not indicate carbon monoxide poisoning.

What concept does this question test?

It tests Toxicology in Forensic Medicine. The correct option holds because: Correct: carboxyhemoglobin can create cherry-red coloration.

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 Toxicology?

Learn postmortem changes with their timelines, and toxicology as poison, sign, test and antidote. Then use the flashcards and the other Forensic Medicine 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.