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NR 503 Midterm Chamberlain Questions and Answers 100% Solved
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NR 503 Midterm Chamberlain
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NR 503 Midterm ChamberlainEpidemiology - answer The study of disease distribution within populations and the risk
factors that affect increases or decreases in distribution.
Population Health - answer Focuses on risk, data, demographics and outcomes
Outcome - answer The end result that follows an intervention
Aggregate - answer A group of persons who share one or more traits or characteristics
without necessarily having had any direct social connection.
Examples:
Female doctors (all are female, all are doctors, all are both)
Community - answer Composed of multiple aggregates
Data - answer Compiled information
Prevalence - answer Measures the existence of all current cases within a time frame
Think: Prev-A-lance = ALL or (P)presence
Incidence - answer Measures the appearance of new cases
Think: What is "in" is "new"
Surveillance - answer Is the ongoing, systematic collection, analysis, interpretation, and
dissemination of health data to help guide public health decision making and action.
High Risk - answer Increased chance of poor health outcome
Morbidity - answer The presence of disease/illness in a population or aggregate
Morbidity = disease
The 2 primary measures are incidence and prevalence.
Mortality - answer Related to the tracking of deaths within a population or aggregate
Mortality = deaths
Primary Prevention - answer The prevention of disease before it occurs
Examples: Immunization. Healthy diet. Exercise.
Secondary Prevention - answer Screening and diagnosis of disease
, Examples: Mammogram. Colonoscopy. Imaging (CT, X-ray, MRI).
Tertiary Prevention - answer Consists of interventions aimed to facilitate the
rehabilitation of the patient to the highest level of functioning while addressing the risk
factors that could further result in the deterioration of the patient's health
Examples: Cardiac or stroke rehabilitation programs.
Screening Tool - answer Instruments with the goal of reducing and/or preventing
morbidity and mortality.
Screening Test - answer Detect early disease indicators or risk factors for disease in
large numbers of apparently healthy individuals
Results indicate a suspicion of disease
Examples: pap smear, mammogram, colonoscopy, endoscopy,
Diagnostic Test - answer Confirms the presence of disease.
Typically used in a symptomatic individual to establish diagnosis, or asymptomatic
individuals with a positive screening test
Examples: biopsy, MRI, X-ray, nuclear medicine scan, CT scan
Validity - answer The ability of that test to distinguish correctly who has a disease.
Based on the specificity and sensitivity of the screening or diagnostic test
Internal Validity - answer Depends mostly on how well a study is conducted.
Does the study measure what it was supposed to measure?
External Validity - answerThrow applicable the study findings are to the real world.
Can the generalizability of the results be applied to other populations?
Specificity - answerability of a test to correctly identify those who do not have the
disease
True negatives!
Sensitivity - answer Ability of a test to correctly identify those who have a disease
True positives!
Measures of Morbidity - answerThe two primary measures of morbidity are incidence
and prevalence.
Measures of Frequency - answerIncidence, prevalence, and mortality rates are three
frequency measures that are used to characterize the occurrence of health events in a
population
Prevalence Rate - answerThe number of affected persons present in the population at a
specific time divided by the number of persons in the population at that same time.
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