Anticoagulants: 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.

Try it

Pharmacology · Anticoagulants

Sample item

What reverses unfractionated heparin?

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

The answer and the reasoning

D. Protamine sulfate

Protamine sulfate binds and neutralizes unfractionated heparin, providing reversal when clinically significant heparin-associated bleeding occurs.

Option by option

  • A. Naloxone

    Naloxone reverses opioid toxicity.

  • B. Vitamin K

    Vitamin K reverses vitamin K antagonist effects.

  • C. Flumazenil

    Flumazenil reverses benzodiazepine effects.

  • D. Protamine sulfate (correct)

    Correct: protamine neutralizes unfractionated heparin.

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 D, Protamine sulfate. Protamine sulfate binds and neutralizes unfractionated heparin, providing reversal when clinically significant heparin-associated bleeding occurs.

Why is "Naloxone" not the answer?

Naloxone reverses opioid toxicity.

Why is "Vitamin K" not the answer?

Vitamin K reverses vitamin K antagonist effects.

Why is "Flumazenil" not the answer?

Flumazenil reverses benzodiazepine effects.

What concept does this question test?

It tests Anticoagulants in Pharmacology. The correct option holds because: Correct: protamine neutralizes unfractionated heparin.

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 Anticoagulants?

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.