Pharmacodynamics: practice question

A Pharmacology 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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Pharmacology · Pharmacodynamics

Sample item

What is a drug that binds a receptor and produces a response called?

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

The answer and the reasoning

A. Agonist

The key Pharmacodynamics principle identifies Agonist as the best answer because it most directly accounts for the mechanism, use, or laboratory finding described.

Option by option

  • A. Agonist (correct)

    Correct. Agonist matches the decisive principle in this item.

  • B. Antagonist

    Antagonist does not fit the stated pharmacodynamics relationship.

  • C. Diuretic

    Diuretic is inconsistent with the requested mechanism or identification.

  • D. Chelator

    Chelator may have another clinical role but is not supported by this clue.

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 Pharmacology questions

Questions about this Pharmacology question

What is the answer to this Pharmacology question?

The best answer is A, Agonist. The key Pharmacodynamics principle identifies Agonist as the best answer because it most directly accounts for the mechanism, use, or laboratory finding described.

Why is "Antagonist" not the answer?

Antagonist does not fit the stated pharmacodynamics relationship.

Why is "Diuretic" not the answer?

Diuretic is inconsistent with the requested mechanism or identification.

Why is "Chelator" not the answer?

Chelator may have another clinical role but is not supported by this clue.

What concept does this question test?

It tests Pharmacodynamics in Pharmacology. The correct option holds because: Correct. Agonist matches the decisive principle in this item.

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 Pharmacodynamics?

Learn drugs as classes, then the exception in each class that an examiner would pick. Then use the flashcards and the other Pharmacology 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.