ATI RN
Epidemiologic Question Questions
Question 1 of 5
Who is known as the father of modern epidemiology?
Correct Answer: A
Rationale: John Snow (A) is credited as the father of modern epidemiology for his cholera outbreak investigation in 1854, linking water sources to disease spread. Koch (B) and Pasteur (C) advanced microbiology, while Jenner (D) pioneered vaccination.
Question 2 of 5
Which term describes the occurrence of more cases of a disease than expected in a given area or among a specific group of people?
Correct Answer: B
Rationale: Epidemic (B) is excess cases beyond expected (e.g., flu outbreak). A is normal, C is global, D is occasional.
Question 3 of 5
The term 'natural history of disease' refers to:
Correct Answer: A
Rationale: Natural history (A) is disease progression without intervention (e.g., HIV stages). B, C, and D are unrelated aspects.
Question 4 of 5
Which of the following is a limitation of cross-sectional studies?
Correct Answer: C
Rationale: Cross-sectional studies (C) can’t determine causality due to simultaneous exposure-outcome measurement. A, B, and D may apply but aren’t primary.
Question 5 of 5
Which of the following best describes a cross-sectional study?
Correct Answer: C
Rationale: Cross-sectional studies (C) survey at one time (e.g., prevalence snapshot). A is cohort, B is case-control, D is RCT.