Psychiatric 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 · Psychiatric drugs

Sample item

Why must lithium concentration be monitored?

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

The answer and the reasoning

A. Narrow therapeutic range and renal clearance

Lithium is cleared by kidneys and has a narrow range between efficacy and toxicity; dehydration and interacting drugs can raise concentrations.

Option by option

  • A. Narrow therapeutic range and renal clearance (correct)

    Correct: renal handling and narrow range require monitoring.

  • B. It has no drug interactions

    Many interactions affect lithium levels.

  • C. It permanently binds platelets

    Platelet binding is not its key property.

  • D. It is absorbed only through skin

    Lithium is administered systemically, not only through skin.

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 A, Narrow therapeutic range and renal clearance. Lithium is cleared by kidneys and has a narrow range between efficacy and toxicity; dehydration and interacting drugs can raise concentrations.

Why is "It has no drug interactions" not the answer?

Many interactions affect lithium levels.

Why is "It permanently binds platelets" not the answer?

Platelet binding is not its key property.

Why is "It is absorbed only through skin" not the answer?

Lithium is administered systemically, not only through skin.

What concept does this question test?

It tests Psychiatric drugs in Pharmacology. The correct option holds because: Correct: renal handling and narrow range require monitoring.

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 Psychiatric 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.