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

Which complication can follow inadvertent intravascular injection of a local anesthetic containing adrenaline?

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

The answer and the reasoning

D. Palpitations and tachycardia

Intravascular adrenaline can produce transient palpitations, tremor, anxiety, and tachycardia. Aspiration, incremental injection, and observation reduce risk.

Option by option

  • A. Painless pulp necrosis

    Pulp necrosis is not an immediate adrenergic injection effect.

  • B. Permanent tooth eruption

    Tooth eruption is a developmental process.

  • C. Immediate enamel remineralization

    Enamel remineralization is a fluoride-related process.

  • D. Palpitations and tachycardia (correct)

    Correct. Catecholamine exposure produces cardiovascular stimulation.

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.

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Questions about this Dentistry question

What is the answer to this Dentistry question?

The best answer is D, Palpitations and tachycardia. Intravascular adrenaline can produce transient palpitations, tremor, anxiety, and tachycardia.

Why is "Painless pulp necrosis" not the answer?

Pulp necrosis is not an immediate adrenergic injection effect.

Why is "Permanent tooth eruption" not the answer?

Tooth eruption is a developmental process.

Why is "Immediate enamel remineralization" not the answer?

Enamel remineralization is a fluoride-related process.

What concept does this question test?

It tests Local anesthesia in Dentistry. Aspiration, incremental injection, and observation reduce risk.

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.