SAR HS 300 Midterm: Part 1 Exam 3 Study Guide
3 Jan 2017
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Screening tests: not a diagnostic test, determines where there is evidence enough to warrant for diagnostic tests. Prevention of morbidity and mortality by targeting large numbers of asymptomatic people (instead of just paying attention to those who are sick). Now limit who gets screened to limit false positives. Primary: to remove or avoid risk (vaccine) no disease present. Secondary: detect a disease before symptoms appear (screening) Tertiary: interventions to minimize disability from disease (rehab) Basic principles of mass screening (social, scientific, ethical) Social: condition is important to public health, effective treatment is available, adequate diagnosis and treatment facilities available, favorable cost-benefit ratio. Wouldn"t necessarily screen for huntingtons, no treatment. Scientific: natural history of the disease is understood, an identifiable early asymptomatic phase. Ethical: suitable screening test available, test acceptable to the population, screening program should be an ongoing continuous process, screening program shown to be effective in reducing morbidity or mortality from the disease.
