infectious agents

Questions and Answers

What distinguishes resident microorganisms from transient microorganisms on the skin?

Resident microorganisms survive without causing harm and are difficult to remove. (correct)

Resident microorganisms are more pathogenic than transient microorganisms.

Transient microorganisms are native to the skin and multiply in deep layers.

Transient microorganisms are permanent residents of the skin.

Which factor does NOT contribute to the potential of microorganisms to cause disease?

The ability to enter and survive in the host.

Virulence, or the ability to produce disease.

The presence of antimicrobial soaps. (correct)

A sufficient number of organisms.

How can transient microorganisms be effectively removed from the skin?

By applying physical pressure to the skin.

Through hand hygiene practices such as proper handwashing. (correct)

With the natural oils produced by the skin.

By using antimicrobial agents regularly.

Which of the following is a characteristic of Staphylococcus aureus?

<p>It is a resident microorganism found on the skin.</p> Signup and view all the answers

Which microorganism is an example of a transient bacterium typically found on the skin?

<p>Escherichia coli</p> Signup and view all the answers

Study Notes

Types of Microorganisms

Microorganisms include bacteria, viruses, fungi, and protozoa.
Skin microorganisms are classified into resident and transient flora.

Resident Microorganisms

Permanent residents of the skin that survive and multiply without causing harm.
Difficult to remove through regular hand-washing unless significant friction is applied.
Deep skin layers require antimicrobial products for effective removal.
Staphylococcus aureus is a common resident microorganism of the skin.

Transient Microorganisms

Temporary organisms that adhere to the skin after contact with people or objects.
Example of contact leading to transient microorganisms: touching a bedpan or contaminated dressing.
These organisms are loosely attached and can easily be transmitted if not properly removed.
Escherichia coli (E. coli), typically found in the bowel, is an example of a transient bacterium affecting the skin.

Factors Influencing Disease Potential

Sufficient quantity of microorganisms is necessary for disease.
Virulence: The organism's ability to cause disease.
Organism's capacity to enter and survive within the host.
Susceptibility of the host plays a critical role in infection risk.

Description

Explore the world of infectious agents including bacteria, viruses, fungi, and protozoa. This quiz will test your understanding of the roles and behaviors of resident and transient flora on the skin. Learn about how these microorganisms survive and the importance of hand hygiene.