Local anesthesia: practice question

A Dentistry 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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Dentistry · Local anesthesia

Sample item

Why is epinephrine added to many local anesthetic solutions?

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

The answer and the reasoning

D. Prolongs action by vasoconstriction

The defining Local anesthesia principle supports Prolongs action by vasoconstriction; it is the answer that best accounts for the finding or clinical aim described.

Option by option

  • A. Dissolves dental plaque

    Dissolves dental plaque may be useful in another context but is not supported by this scenario.

  • B. Produces systemic anticoagulation

    Produces systemic anticoagulation does not provide the expected imaging or dental conclusion here.

  • C. Causes immediate sedation

    Causes immediate sedation is less appropriate because it does not match the stated local anesthesia feature.

  • D. Prolongs action by vasoconstriction (correct)

    Correct. Prolongs action by vasoconstriction is the most appropriate interpretation of the key information.

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 Dentistry questions

Questions about this Dentistry question

What is the answer to this Dentistry question?

The best answer is D, Prolongs action by vasoconstriction. The defining Local anesthesia principle supports Prolongs action by vasoconstriction; it is the answer that best accounts for the finding or clinical aim described.

Why is "Dissolves dental plaque" not the answer?

Dissolves dental plaque may be useful in another context but is not supported by this scenario.

Why is "Produces systemic anticoagulation" not the answer?

Produces systemic anticoagulation does not provide the expected imaging or dental conclusion here.

Why is "Causes immediate sedation" not the answer?

Causes immediate sedation is less appropriate because it does not match the stated local anesthesia feature.

What concept does this question test?

It tests Local anesthesia in Dentistry. The correct option holds because: Correct. Prolongs action by vasoconstriction is the most appropriate interpretation of the key information.

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 Local anesthesia?

Learn the dental formula, eruption ages and tooth structure once, as tables. Then use the flashcards and the other Dentistry 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.