NRSG 320 Epidemiology Questions With Complete Solutions

Define epidemiology correct answer: Epidemiology is the study of the distribution and determinants of health states or events in specified populations, and the application of this study to control health problem What are 2 fundamental assumptions of epidemiology? correct answer: 1. Diseases do not occur by chance 2. Diseases are not randomly distributed • Disease distribution indicates something: • The epidemiologists' job is to find the 'something' through systematic investigation! Define distribution, determinants, health related states, and control correct answer: • Distribution (frequency/pattern of who, when & where?) • Determinants: CAUSES (how & why?) • Health-related states: DISEASES (what?) • Application of findings to CONTROL health problems (development & evaluation of interventions) Describe the epidemiology triad correct answer: Transmission occurs when the agent leaves its reservoir or host through a portal of exit, is conveyed by a mode of transmission to enter through an appropriate portal of entry to infect a susceptible host. What is the difference between epidemic, endemic and pandemic? correct answer: Epidemic: occurs when the incidence rate (i.e. new cases in a given human population, during a given period) of a certain d