Nur 404 Exam 2 (With A+ Graded answers)

What is epidemiology? correct answers Investigation of patterns of health events in populations (distribution)* what is the definition of an agent? correct answers An animate or inanimate factor that must be present or lacking for a disease or condition to develop what is the definition of a host? correct answers a living species (human or animal) capable of being infected or affected by an agent what is the definition of an environment? correct answers all that is internal/external to a given host/agent and that influences the host and/or agent what is the web of causality? correct answers Complex interrelationships of many factors interacting, sometimes in subtle ways, to increase (or decrease) the risk of disease what is the aim of screening? correct answers early detection and treatment when these result in a more favorable prognosis is a screening test a diagnostic test? correct answers no what does an effecting screening program include? correct answers referrals for diagnostic evaluation for those who screen positive what is descriptive epidemiology? correct answers describes a disease according to its person (who), place (where) or time (when) what does analytical epidemiology ask? correct answers asks how and why? how does it occur? why are some people affected more than others? what are clinical trials? correct answers (treating) -randomization to groups -masking or blinding treatment what are community trials? correct answers similar to clinical except deal more with disease prevention and health promotion rather than treatment of existing disease when looking at case control studies for odds ration, how do you compare two similar groups? correct answers one with a health problem and one without the same health problem when looking at cross sectional studies/prevalence studies, what should be examined within the relationship? correct answers between the health problem and factors of interest