B3 Prev Med Lectures 8-9. Diagnostic And Screening Tests Questions & Answers

B3 Prev Med Lectures 8-9. Diagnostic and Screening Tests Questions & Answers 1 / 6 1. What is a screening test? identifies asymptomatic people who may have a disease 2. What is a diagnostic test? determines the presence or absence of disease when a patient shows sign or symptoms 3. How do clinicians reduce continuous data to make them simpler? dichotomy (present/absent, nor- mal/abnormal) ordianl (grades I-IV) 4. In a 2x2 table, disease is located... on the top 5. In a 2x2 table, test result is located... on the side 6. a - 2x2 table true positive 7. b - 2x2 table false positive 8. c - 2x2 table false negative 9. d - 2x2 table true negative 10. Pros of screening early detection - early treatment - decrease morbidity/mortality - break chain of transmission - cost-effective 11. Cons/critical considerations of screening hidden costs and risks anxiety, morbidity created biases invasive 12. 3 criteria for screening suitable disease suitable test suitable screening program 13. What is meant by a "suitable dis- ease"? The disease... - has serious consequences2 / 6 - is progressive - treatment is effective at earlier stage - prevalence is high 14. What is meant by a