Which of the following does NOT help prevent spread of respiratory infections?

UP NHM CHO 7 Sept 2022 (Shift-2)

Applied Microbiology & Infection control

Easy

Appeared in: UP NHM CHO 7 Sept 2022 (Shift-2)

Explanation

Staying in poorly ventilated rooms allows infectious respiratory droplets and aerosols to accumulate and remain suspended in the air.
This increases the concentration of the pathogen within the enclosed space, significantly raising the risk of transmission to others who share the same air.
Proper ventilation is a key engineering control measure that dilutes and removes airborne pathogens, thereby reducing the risk of spread.

Option A: Washing hands is a fundamental and highly effective measure to prevent the spread of pathogens, including respiratory viruses, that are transmitted through direct or indirect contact.
Option C: Covering the nose and mouth, also known as respiratory etiquette, is a crucial source control measure that blocks the dispersion of infectious droplets into the environment when a person coughs or sneezes.
Option D: Using tissues to contain respiratory secretions and then disposing of them properly is an important practice that minimizes environmental contamination and reduces the risk of transmission via fomites (contaminated objects).

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Infection control and prevention of respiratory diseases as background academic context rather than a clinical decision trigger.
Nurses play a vital role in educating patients, families, and the community about standard precautions and respiratory hygiene to limit the spread of infections in both healthcare and home settings.
In a hospital, nurses are responsible for implementing infection control policies, which include ensuring appropriate patient placement based on transmission risk and educating on the importance of environmental controls like ventilation.
What if? If a patient has a confirmed airborne disease like tuberculosis or measles, simply staying 6 feet apart is insufficient. They require placement in an Airborne Infection Isolation Room (AIIR) with specialized negative-pressure ventilation, and staff must use N95 respirators.

How to Approach the Question

First, identify the keywords in the question: 'NOT', 'help prevent', and 'respiratory infections'.
The word 'NOT' is critical. It inverts the question, meaning you are looking for the option that is an incorrect or harmful action, rather than a correct preventive measure.
Evaluate each option to determine if it is a recommended practice for preventing infection.
Recognize that washing hands (A), covering coughs (C), and using tissues (D) are all standard, effective infection control practices.
Identify that staying in a poorly ventilated room (B) is the opposite of a preventive measure; it actually increases the risk of transmission.
Conclude that the action that does NOT help is staying in a poorly ventilated room, making it the correct answer.

Concept Tested & Keywords

Concept Tested: Infection control and prevention of respiratory diseases
Stem keywords: prevent spread, respiratory infections
Lead-in keywords: NOT
Negative lead-in flag: The question asks to identify the action that does NOT prevent the spread of infection, which is a negative framing.

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