NR503 - Epidemiology Midterm UPDATED ACTUAL Exam Questions and CORECT Answers

NR503 - Epidemiology Midterm UPDATED
ACTUAL Exam Questions and CORECT
Answers
prevalence - CORRECT ANSWER - number of existing cases / number of population



incidence - CORRECT ANSWER - number of new cases / number of persons at risk of
developing disease


relationship between incidence and prevalence - CORRECT ANSWER - prevalence =
incidenceXduration


relationship between incidence rate and mortality rate - CORRECT ANSWER - mortality
rate easier to obtain than incidence
- use when case-fatality rate is high
- use when duration of disease is short


importance of surveillance - CORRECT ANSWER - - monitor changes in disease
frequency
- monitor changes in levels of risk factors
- conducted for infectious disease


passive surveillance - CORRECT ANSWER - - disease reporting is mandated or requested
with responsibility for reporting often falling on health care provider or health officer
- depends on individual and staff
- relatively inexpensive
- easy to develop initally