ATI RN
Epidemiology Multiple Choice Questions Questions
Question 1 of 5
The Iowa Women's Health Study, in which researchers enrolled 41,837 women in 1986 and collected exposure and lifestyle information to assess the relationship between these factors and subsequent occurrence of cancer, is an example of which type(s) of study? (Choose one wrong answer)
Correct Answer: A
Rationale: This prospective study of exposures is observational (B) and cohort-based (C). No randomization (A) or case-control comparison (D) applies.
Question 2 of 5
In a state that did not require varicella (chickenpox) vaccination, a boarding school experienced a prolonged outbreak of varicella among its students that began in September and continued through December. To calculate the probability or risk of illness among the students, which denominator would you use?
Correct Answer: C
Rationale: Risk (cumulative incidence) uses the initial number of susceptibles (C) to reflect those at risk at the outbreak’s start.
Question 3 of 5
On an arithmetic-scale line graph, the x-axis and y-axis each should: (Choose one wrong answer)
Correct Answer: D
Rationale: Labels (B) and proportional scaling (C) are essential. Starting at zero (A) is optional, and uniform spacing (D) is not required.
Question 4 of 5
Public health surveillance is only conducted by public health agencies.
Correct Answer: B
Rationale: Hospitals and other entities also contribute to surveillance, not just public health agencies.
Question 5 of 5
The primary reason for preparing and distributing periodic surveillance summaries is which of the following?
Correct Answer: B
Rationale: Summaries aim to inform stakeholders about current disease trends and patterns.