Laboratory biochemistry: practice question

A Biochemistry 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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Biochemistry · Laboratory biochemistry

Sample item

Which biomarker is most specific for myocardial injury in acute coronary syndrome?

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

The answer and the reasoning

D. Cardiac troponin

Cardiac troponin is highly specific for myocardial injury and is interpreted with symptoms, ECG findings, timing, and serial changes.

Option by option

  • A. Alanine aminotransferase

    ALT indicates hepatocellular injury.

  • B. Creatine alone

    Creatine alone is not a specific cardiac marker.

  • C. Serum amylase

    Amylase is associated with pancreatic disease.

  • D. Cardiac troponin (correct)

    Correct: troponin is the key myocardial injury biomarker.

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 Biochemistry question

What is the answer to this Biochemistry question?

The best answer is D, Cardiac troponin. Cardiac troponin is highly specific for myocardial injury and is interpreted with symptoms, ECG findings, timing, and serial changes.

Why is "Alanine aminotransferase" not the answer?

ALT indicates hepatocellular injury.

Why is "Creatine alone" not the answer?

Creatine alone is not a specific cardiac marker.

Why is "Serum amylase" not the answer?

Amylase is associated with pancreatic disease.

What concept does this question test?

It tests Laboratory biochemistry in Biochemistry. The correct option holds because: Correct: troponin is the key myocardial injury biomarker.

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 Laboratory biochemistry?

Build one table of enzyme deficiency, disease, inheritance and key finding, then revise it by spaced recall. Then use the flashcards and the other Biochemistry 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.