ATI RN
Epidemiology Final Exams Questions and Answers Questions
Question 1 of 5
All proportions are ratios, but not all ratios are proportions.
Correct Answer: A
Rationale: Proportions are ratios bounded 0-1, while ratios can exceed 1 (e.g., odds), making this true.
Question 2 of 5
Public health surveillance can be described primarily as which of the following?
Correct Answer: A
Rationale: Surveillance is fundamentally about monitoring health problem occurrences.
Question 3 of 5
One week, a state health department received substantially more case reports of a disease in one county than had been reported during the previous 2 weeks. No increase was reported in neighboring counties. Possible explanations for this increase include which of the following? (Choose one wrong answer)
Correct Answer: D
Rationale: Outbreak (A), batching (B), or duplicates (C) explain a sudden rise. Population increase (D) is unlikely in one week.
Question 4 of 5
Once a case definition for an outbreak investigation has been established, it should not be changed.
Correct Answer: B
Rationale: Definitions can be refined as new information emerges.
Question 5 of 5
The hallmark feature of an analytic epidemiologic study is: (Choose one best answer)
Correct Answer: A
Rationale: Analytic studies rely on comparison groups to test hypotheses.