Autonomic pharmacology: 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 · Autonomic pharmacology

Sample item

What effect follows alpha-1 receptor stimulation?

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

The answer and the reasoning

B. Peripheral vasoconstriction

Alpha-1 receptor activation contracts vascular smooth muscle, increasing peripheral vascular resistance and supporting blood pressure in selected clinical situations.

Option by option

  • A. Increased gut motility

    Gut motility is promoted by parasympathetic activity.

  • B. Peripheral vasoconstriction (correct)

    Correct: alpha-1 stimulation constricts peripheral blood vessels.

  • C. Reduced heart rate

    Reduced heart rate is not the primary alpha-1 effect.

  • D. Bronchodilation

    Bronchodilation is mediated mainly by beta-2 receptors.

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 B, Peripheral vasoconstriction. Alpha-1 receptor activation contracts vascular smooth muscle, increasing peripheral vascular resistance and supporting blood pressure in selected clinical situations.

Why is "Increased gut motility" not the answer?

Gut motility is promoted by parasympathetic activity.

Why is "Reduced heart rate" not the answer?

Reduced heart rate is not the primary alpha-1 effect.

Why is "Bronchodilation" not the answer?

Bronchodilation is mediated mainly by beta-2 receptors.

What concept does this question test?

It tests Autonomic pharmacology in Pharmacology. The correct option holds because: Correct: alpha-1 stimulation constricts peripheral blood vessels.

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 Autonomic pharmacology?

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.