Answer :
Final answer:
Pathogens can be transmitted from contaminated surfaces through direct contact, making statements a and b true. Touching a surface does not require a minimum duration for pathogenic transfer, and many pathogens can survive longer than just a few minutes. Understanding these transmission methods is key to preventing infections.
Explanation:
Transmission of Pathogens from Environmental Surfaces
Pathogens, which are microorganisms that can cause disease, can easily be transmitted from contaminated surfaces in our environment. It is important to understand the various ways that these pathogens can spread to effectively prevent infections and maintain health.
True Statements Regarding Pathogen Transmission
- a. Pathogens can be spread by contact with contaminated surfaces.
- b. Placing a resident in a room previously occupied by a C. diff positive resident increases the risk for acquiring C. diff.
Both statements a and b are true because pathogens can survive on surfaces for varying lengths of time and can be transmitted through direct contact with these surfaces. For example, Clostridium difficile (C. diff) spores can persist on surfaces for long periods and can lead to infections if proper cleaning measures are not followed.
False Statements Regarding Pathogen Transmission
- c. You must touch a surface for at least 3 minutes for pathogenic transfer to occur.
- d. Most pathogens can only survive on surfaces for a few minutes.
Statements c and d are false because pathogenic transfer can occur in a matter of seconds upon contact with contaminated surfaces, and many pathogens are capable of surviving on surfaces for hours, days, or even longer depending on the type of pathogen and the environmental conditions.
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