CIC Infectious Disease Processes 2

Question 1

Which component of the chain of infection refers to the reservoir's ability to exit and reach a susceptible host?

Accepted Answer

Portal of exit

Answer

The portal of exit is the pathway by which a pathogen leaves its reservoir to be transmitted to a new host.

Question 2

A patient develops fever, chills, and bacteremia 48 hours after a central line insertion. This represents which type of infection?

Accepted Answer

Healthcare-associated infection

Answer

An infection occurring more than 48 hours after admission that was not present on admission is classified as a healthcare-associated infection (HAI).

Question 3

Which term describes the ability of a pathogen to cause disease in a susceptible host?

Accepted Answer

Pathogenicity

Answer

Pathogenicity is the ability of an organism to cause disease, while virulence refers to the degree or severity of that disease.

Question 4

Clostridium difficile spores persist on environmental surfaces primarily because they are resistant to:

Accepted Answer

Alcohol-based hand rubs

Answer

C. difficile spores are not killed by alcohol-based hand rubs, which is why soap-and-water handwashing is required for C. difficile patient care.

Question 5

Which of the following best defines 'colonization' in the context of infectious disease?

Accepted Answer

Pathogen present without causing signs or symptoms of infection

Answer

Colonization means a microorganism is present and may be multiplying on or in a host without producing clinical signs or symptoms of infection.

CIC - Certification in Infection Prevention and Control Practice Test