ATI RN
Epidemiology NCLEX Questions Questions
Question 1 of 5
British investigators conducted a study to compare measles-mumps-rubella (MMR) vaccine history among 1,294 children with pervasive development disorder (e.g., autism and Asperger's syndrome) and 4,469 children without such disorders. (They found no association.) This is an example of which type(s) of study? (Choose one wrong answer)
Correct Answer: C
Rationale: Comparing cases (disorder) to controls (no disorder) is observational (B) and case-control (D). Cohort (C) follows exposure over time, not applicable here.
Question 2 of 5
The units for the quantity you calculated in Question 8 could be expressed as:
Correct Answer: B
Rationale: Secondary attack rate, a risk measure, is expressed as a percentage of susceptibles affected.
Question 3 of 5
Which of the following shapes of a population pyramid is most consistent with a young population?
Correct Answer: C
Rationale: A broad base (triangle base down) indicates high birth rates, typical of a young population.
Question 4 of 5
Common uses and applications of public health surveillance include which of the following? (Choose one wrong answer)
Correct Answer: A
Rationale: Surveillance supports resource allocation (B), trend tracking (C), and policy evaluation (D). Individual detection (A) is clinical, not surveillance.
Question 5 of 5
Underreporting is not a problem for detecting outbreaks of notifiable diseases because the proportion of cases reported tends to remain relatively stable over time.
Correct Answer: B
Rationale: Underreporting can obscure outbreaks if case numbers drop below detection thresholds.