Sterilization: practice question

A Microbiology 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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Microbiology · Sterilization

Sample item

What is biological indicator testing used for in autoclave validation?

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

The answer and the reasoning

D. Confirm conditions can kill resistant spores

Biological indicators use resistant spores to verify that sterilization cycles achieve lethal conditions; they complement mechanical and chemical monitoring.

Option by option

  • A. Measure room temperature only

    Room temperature is insufficient.

  • B. Replace mechanical monitoring

    Mechanical monitoring remains useful.

  • C. Identify patient pathogen

    It does not identify clinical organisms.

  • D. Confirm conditions can kill resistant spores (correct)

    Correct: spore killing tests sterilizer effectiveness.

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 Microbiology questions

Questions about this Microbiology question

What is the answer to this Microbiology question?

The best answer is D, Confirm conditions can kill resistant spores. Biological indicators use resistant spores to verify that sterilization cycles achieve lethal conditions; they complement mechanical and chemical monitoring.

Why is "Measure room temperature only" not the answer?

Room temperature is insufficient.

Why is "Replace mechanical monitoring" not the answer?

Mechanical monitoring remains useful.

Why is "Identify patient pathogen" not the answer?

It does not identify clinical organisms.

What concept does this question test?

It tests Sterilization in Microbiology. The correct option holds because: Correct: spore killing tests sterilizer effectiveness.

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 Sterilization?

Make a one-line identity card for each organism: shape and stain, defining test, toxin, disease and drug. Then use the flashcards and the other Microbiology 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.