NSG 263 EXAM 2 EXAM STUDY SHEET
INCLUDING ALL ACTUAL EXAM QUESTIONS
AND SOLUTIONS 2026.
⫸ epidemiological triangle Answer: causative agent, susceptible
person or host, environment
⫸ causative agent Answer: biological, physical, chemical
⫸ susceptible person or host Answer: living species
⫸ environment Answer: anything external to person or agent
⫸ epidemiological triangle TB example Answer: agent: TB organism
host: poor nutrition, concurrent disease, low immunity
environment: crowding, poor ventilation, bad sanitation
⫸ first epidemiological tool used Answer: line list
⫸ line list used to Answer: investigate "person"
⫸ line list aids in Answer: keeping track of cases, organizing data,
and looking for possible relationships
,⫸ line list may be Answer: hand written on scrap paper, on-site,
spreadsheet or sophisticated computer program
⫸ line list is considered ___________ epi Answer: descriptive:
personal demographics (age, gender), risk factors, symptoms,
outcomes
⫸ line list example Answer:
⫸ line list is an easy way to Answer: look at people involved in
outbreak
⫸ line list specifically looks at the Answer: person
⫸ data analysis by person Answer: hospitalized: more elderly, males
and females equally affected
⫸ epidemic curve (epi curve) used to investigate Answer: time
⫸ epi curve y axis Answer: number of cases
⫸ epi curve x axis Answer: onset (weeks, days, hours)
⫸ epi curve establishes temporality (timing) of Answer: onset,
incubation period, beginning, middle, end of outbreak
, ⫸ epi curve gives clues as to cause: Answer: point source or person
to person
⫸ when looking at epi curve, look for Answer: pattern of spread,
magnitude, outliers
⫸ epi curve is helpful when you dont know Answer: what illness is
causing something
⫸ point source example Answer: food poisoning
⫸ person to person spread example Answer: flu
⫸ epi curve specifically relates to Answer: time
⫸ epi curve example Answer:
⫸ point source outbreak Answer: persons are exposed over a brief
time to the same source, such as a single meal or event. the number of
cases rises rapidly to a peak and falls gradually. the majority of cases
occur within one incubation period of the disease
⫸ person to person/ propagated outbreak Answer: there is no
common source because the outbreak spreads from person to person.
INCLUDING ALL ACTUAL EXAM QUESTIONS
AND SOLUTIONS 2026.
⫸ epidemiological triangle Answer: causative agent, susceptible
person or host, environment
⫸ causative agent Answer: biological, physical, chemical
⫸ susceptible person or host Answer: living species
⫸ environment Answer: anything external to person or agent
⫸ epidemiological triangle TB example Answer: agent: TB organism
host: poor nutrition, concurrent disease, low immunity
environment: crowding, poor ventilation, bad sanitation
⫸ first epidemiological tool used Answer: line list
⫸ line list used to Answer: investigate "person"
⫸ line list aids in Answer: keeping track of cases, organizing data,
and looking for possible relationships
,⫸ line list may be Answer: hand written on scrap paper, on-site,
spreadsheet or sophisticated computer program
⫸ line list is considered ___________ epi Answer: descriptive:
personal demographics (age, gender), risk factors, symptoms,
outcomes
⫸ line list example Answer:
⫸ line list is an easy way to Answer: look at people involved in
outbreak
⫸ line list specifically looks at the Answer: person
⫸ data analysis by person Answer: hospitalized: more elderly, males
and females equally affected
⫸ epidemic curve (epi curve) used to investigate Answer: time
⫸ epi curve y axis Answer: number of cases
⫸ epi curve x axis Answer: onset (weeks, days, hours)
⫸ epi curve establishes temporality (timing) of Answer: onset,
incubation period, beginning, middle, end of outbreak
, ⫸ epi curve gives clues as to cause: Answer: point source or person
to person
⫸ when looking at epi curve, look for Answer: pattern of spread,
magnitude, outliers
⫸ epi curve is helpful when you dont know Answer: what illness is
causing something
⫸ point source example Answer: food poisoning
⫸ person to person spread example Answer: flu
⫸ epi curve specifically relates to Answer: time
⫸ epi curve example Answer:
⫸ point source outbreak Answer: persons are exposed over a brief
time to the same source, such as a single meal or event. the number of
cases rises rapidly to a peak and falls gradually. the majority of cases
occur within one incubation period of the disease
⫸ person to person/ propagated outbreak Answer: there is no
common source because the outbreak spreads from person to person.
