Epidemiology: concurrent disinfection: practice question

A PSM 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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PSM · Epidemiology: concurrent disinfection

Sample item

Disinfection of the patient's excreta, soiled linen and discharges carried out continuously throughout the course of illness is called:

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

The answer and the reasoning

D. Concurrent disinfection

Concurrent disinfection is applied at once and repeatedly while the patient is still a source of infection. Terminal disinfection is done after the patient has recovered or died, and disinfestation targets arthropods.

Option by option

  • A. Terminal disinfection

    Terminal disinfection is performed once at the end of illness.

  • B. Precurrent disinfection

    Precurrent (preventive) disinfection is applied before contamination, for example of water or milk, and is not done during illness.

  • C. Disinfestation

    Disinfestation is the destruction of insects and rodents.

  • D. Concurrent disinfection (correct)

    Correct. Ongoing disinfection during illness is concurrent.

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 PSM questions

Questions about this PSM question

What is the answer to this PSM question?

The best answer is D, Concurrent disinfection. Concurrent disinfection is applied at once and repeatedly while the patient is still a source of infection.

Why is "Terminal disinfection" not the answer?

Terminal disinfection is performed once at the end of illness.

Why is "Precurrent disinfection" not the answer?

Precurrent (preventive) disinfection is applied before contamination, for example of water or milk, and is not done during illness.

Why is "Disinfestation" not the answer?

Disinfestation is the destruction of insects and rodents.

What concept does this question test?

It tests Epidemiology: concurrent disinfection in PSM. Terminal disinfection is done after the patient has recovered or died, and disinfestation targets arthropods.

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 Epidemiology: concurrent disinfection?

Practise biostatistics with small calculations until sensitivity, predictive values and risk measures are automatic. Then use the flashcards and the other PSM 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.