HESI Community Health PRACTICE TEST 2026 |
QUESTIONS WITH ANSWERS & DETAILED
EXPLANATIONS STUDY GUIDE LATEST UPDATE
THIS YEAR INSTANT DOWNLOAD PDF
Epidemiology & Biostatistics
,1. A community health nurse is investigating an outbreak of gastroenteritis. Which
measure best describes the proportion of people who became ill after eating at a
church picnic?
- A) Incidence rate
- B) Attack rate
- C) Prevalence rate
- D) Mortality rate
Answer: B
Rationale: An attack rate is the proportion of persons exposed to an agent who
develop the disease. It is used during outbreaks to measure the risk of illness in
a specific group exposed to a common source.
,2. Which term describes the number of existing cases of a disease in a
population at a specific point in time?
- A) Incidence
- B) Prevalence
- C) Attack rate
- D) Relative risk
Answer: B
Rationale: Prevalence measures all existing cases (old and new) at a given time.
Incidence measures only new cases over a period.
3. A nurse calculates that the infant mortality rate in a community is 8 per 1,000
live births. This is an example of:
, - A) Crude rate
- B) Specific rate
- C) Adjusted rate
- D) Proportional rate
Answer: B
Rationale: Infant mortality rate is a specific rate because it applies to a specific
subgroup (infants) rather than the entire population.
4. The epidemiological triangle consists of:
- A) Host, agent, environment
- B) Person, place, time
- C) Primary, secondary, tertiary
QUESTIONS WITH ANSWERS & DETAILED
EXPLANATIONS STUDY GUIDE LATEST UPDATE
THIS YEAR INSTANT DOWNLOAD PDF
Epidemiology & Biostatistics
,1. A community health nurse is investigating an outbreak of gastroenteritis. Which
measure best describes the proportion of people who became ill after eating at a
church picnic?
- A) Incidence rate
- B) Attack rate
- C) Prevalence rate
- D) Mortality rate
Answer: B
Rationale: An attack rate is the proportion of persons exposed to an agent who
develop the disease. It is used during outbreaks to measure the risk of illness in
a specific group exposed to a common source.
,2. Which term describes the number of existing cases of a disease in a
population at a specific point in time?
- A) Incidence
- B) Prevalence
- C) Attack rate
- D) Relative risk
Answer: B
Rationale: Prevalence measures all existing cases (old and new) at a given time.
Incidence measures only new cases over a period.
3. A nurse calculates that the infant mortality rate in a community is 8 per 1,000
live births. This is an example of:
, - A) Crude rate
- B) Specific rate
- C) Adjusted rate
- D) Proportional rate
Answer: B
Rationale: Infant mortality rate is a specific rate because it applies to a specific
subgroup (infants) rather than the entire population.
4. The epidemiological triangle consists of:
- A) Host, agent, environment
- B) Person, place, time
- C) Primary, secondary, tertiary
