Community ophthalmology: Vitamin A prophylaxis: practice question

A Ophthalmology 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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Ophthalmology · Community ophthalmology: Vitamin A prophylaxis

Sample item

In the national vitamin A prophylaxis schedule, how much vitamin A is given at 9 months with the measles vaccine?

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

The answer and the reasoning

C. 100,000 IU orally

The first dose is 1 lakh IU at 9 months, followed by 2 lakh IU every 6 months from 16 months up to 5 years. Dosing is oral and doses are spaced at least 1 month apart.

Option by option

  • A. 50,000 IU orally

    50,000 IU is the dose for young infants in therapy.

  • B. 200,000 IU orally

    2 lakh IU is the later dose.

  • C. 100,000 IU orally (correct)

    Correct. 1 lakh IU is the first dose.

  • D. 25,000 IU intramuscularly

    The route is oral.

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 Ophthalmology question

What is the answer to this Ophthalmology question?

The best answer is C, 100,000 IU orally. The first dose is 1 lakh IU at 9 months, followed by 2 lakh IU every 6 months from 16 months up to 5 years.

Why is "50,000 IU orally" not the answer?

50,000 IU is the dose for young infants in therapy.

Why is "200,000 IU orally" not the answer?

2 lakh IU is the later dose.

Why is "25,000 IU intramuscularly" not the answer?

The route is oral.

What concept does this question test?

It tests Community ophthalmology: Vitamin A prophylaxis in Ophthalmology. Dosing is oral and doses are spaced at least 1 month apart.

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 Community ophthalmology: Vitamin A prophylaxis?

Group the red eye by what to examine and what the pupil does. Then use the flashcards and the other Ophthalmology 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.