Cardiovascular drugs: 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 · Cardiovascular drugs

Sample item

What is the main effect of adenosine in regular AV-nodal re-entry tachycardia?

APermanent sinus-node ablationBLong-term anticoagulationCIncreased ventricular contractilityDTransient AV-node block

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

The answer and the reasoning

D. Transient AV-node block

Adenosine transiently blocks AV-nodal conduction and can terminate AV-node-dependent supraventricular tachycardia while rhythm monitoring is performed.

Option by option

A. Permanent sinus-node ablation
It does not ablate sinus node.
B. Long-term anticoagulation
It is not anticoagulant.
C. Increased ventricular contractility
It does not increase inotropy as goal.
D. Transient AV-node block (correct)
Correct: brief AV block interrupts re-entry.

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.

Questions about this Pharmacology question

What is the answer to this Pharmacology question?

The best answer is D, Transient AV-node block. Adenosine transiently blocks AV-nodal conduction and can terminate AV-node-dependent supraventricular tachycardia while rhythm monitoring is performed.

Why is "Permanent sinus-node ablation" not the answer?

It does not ablate sinus node.

Why is "Long-term anticoagulation" not the answer?

It is not anticoagulant.

Why is "Increased ventricular contractility" not the answer?

It does not increase inotropy as goal.

What concept does this question test?

It tests Cardiovascular drugs in Pharmacology. The correct option holds because: Correct: brief AV block interrupts re-entry.

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 Cardiovascular drugs?

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.