
An instructor is discussing the worldwide distribution of AIDS. Which term would the
instructor use to describe this situation?
Pandemic is the term used to describe an epidemic that is distributed worldwide. An
epidemic refers to a disease occurrence that clearly exceeds the normal or expected
frequency in a community or region. Endemic is used to describe the continuing
presence of a disease or infectious agent in a given geographic area. Pathogenicity refers
to an agent's capacity to cause disease in a host.
After a class describing the contributions of Florence Nightingale to epidemiology, the
instructor determines that the class needs additional instruction when they state which of
the following is associated with Nightingale?
Establishment of the need for a clean environment
A sophisticated coding system for medical conditions
Proper wound cleansing and bandaging techniques
Separation of infected individuals from those injured
Nightingale's colleague, William Farr, is credited for developing a more sophisticated
system for coding medical conditions. Nightingale's contributions included establishing
the need for a clean environment, properly cleaning wounds and bandaging them, and
separating infected soldiers from those who were injured.
When applying the epidemiologic triad model to a community's plan of care, which of
the following would the community health nurse address?
Incidence, prevalence, and case fatality
Health, illness, and injury
Host, agent, and environment
Immunity, causation, and risk
The purpose of this model is to demonstrate the relationship among host, agent, and
environment. Each component has to be present to a certain degree in order for any
disease, illness, or injury to exist or happen. If one component is missing, illness or
injury will not occur. Incidence, prevalence, case fatality, health, illness, injury,
immunity, causation, and risk are terms used in epidemiology but do not refer to the
epidemiologic triad model.