BSN 205 INFECTION CONTROL EXAM
2026 CHAIN OF INFECTION PREVENTION
PRACTICES QUESTIONS SOLUTIONS
GRADED A+
◉ What factors influence whether an organism causes disease?
Answer: Number of organisms, virulence, competence of the
immune system, and length/extent of contact.
◉ What are the six components of the infection cycle?
Answer: Infectious agents, reservoir, portal of exit, mode of
transmission, portal of entry, and susceptible host.
◉ What are the main types of infectious agents?
Answer: Bacteria, viruses, fungi, parasites, and protozoa.
◉ What is the significance of bacteria in hospital settings?
Answer: Bacteria are the most significant and prevalent infectious
agents in hospitals.
◉ What distinguishes aerobic bacteria from anaerobic bacteria?
, Answer: Aerobic bacteria require oxygen to grow, while anaerobic
bacteria do not.
◉ What is the role of antivirals in infection control?
Answer: Antivirals can shorten the duration of illness if given during
the prodromal stage of certain viruses.
◉ What are common examples of fungal infections?
Answer: Molds, yeast, ringworm, candidiasis, athlete's foot, and jock
itch.
◉ What factors increase a patient's risk for developing an infection?
Answer: Alteration of skin integrity, immune system function, age,
sex, race, heredity, and use of invasive devices.
◉ What is the incubation period in the context of infection?
Answer: The interval between pathogen invasion and the
appearance of the first symptoms.
◉ What characterizes the prodromal stage of infection?
Answer: Early signs and symptoms of the disease, where the person
is most infectious.
2026 CHAIN OF INFECTION PREVENTION
PRACTICES QUESTIONS SOLUTIONS
GRADED A+
◉ What factors influence whether an organism causes disease?
Answer: Number of organisms, virulence, competence of the
immune system, and length/extent of contact.
◉ What are the six components of the infection cycle?
Answer: Infectious agents, reservoir, portal of exit, mode of
transmission, portal of entry, and susceptible host.
◉ What are the main types of infectious agents?
Answer: Bacteria, viruses, fungi, parasites, and protozoa.
◉ What is the significance of bacteria in hospital settings?
Answer: Bacteria are the most significant and prevalent infectious
agents in hospitals.
◉ What distinguishes aerobic bacteria from anaerobic bacteria?
, Answer: Aerobic bacteria require oxygen to grow, while anaerobic
bacteria do not.
◉ What is the role of antivirals in infection control?
Answer: Antivirals can shorten the duration of illness if given during
the prodromal stage of certain viruses.
◉ What are common examples of fungal infections?
Answer: Molds, yeast, ringworm, candidiasis, athlete's foot, and jock
itch.
◉ What factors increase a patient's risk for developing an infection?
Answer: Alteration of skin integrity, immune system function, age,
sex, race, heredity, and use of invasive devices.
◉ What is the incubation period in the context of infection?
Answer: The interval between pathogen invasion and the
appearance of the first symptoms.
◉ What characterizes the prodromal stage of infection?
Answer: Early signs and symptoms of the disease, where the person
is most infectious.
