NR 503 Epi Midterm EXAM WITH ANSWERS

NR 503 Epi Midterm EXAM WITH ANSWERS Internal Validity - ANS Whether the study measures what it was supposed to measure External Validity - ANS The generalizability of the results to other populations Reliability - ANS The ability of test results being replicated if the test is repeated Probability - ANS Study of the laws of chance Sensitivity - ANS The tests' ability to yield a positive result when the person actually has the condition, disease, or disorder Specificity - ANS The tests' ability to yield a negative result when the person does not have the condition Gold Standard - ANS Tests with 100% sensitivity and specificity Positive predictive value - ANS Probability the person actually having the disease when the screening test or diagnostic test is positive Negative Predictive Value (NPV) - ANS The probability of the person being free of disease when the screening test or diagnostic test is negative Clinically significant - ANS Referring to results that have clinical significance Natural history of disease - ANS Nature of the disease and how it progresses primary prevention - ANS Interventions aimed at preventing the condition, disorder or disease secondary prevention - ANS Interventions aimed at detecting a disease early in its course Tertiary prevention - ANS Limiting the effects of the disease once it is established True Positive (TP) - ANS Occurs when the test correctly reports disease presence when disease is in fact present False positive - ANS Occurs when the test incorrectly reports disease presence when disease is, in fact absent False negative - ANS Occurs when the test incorrectly reports the abscence of disease when disease is in fact present Campaign for action - ANS Encouraged by Robert Wood, focuses on specific aspects of health and healthcare based on the Institute of Medicine's recommendations. They aim to improve health through nursing. Morbidity and mortality weekly report (MMWR) - ANS Provisional weekly updates of reportable diseases can be accessed electronically National health and nutrition examination survey (NHANES) - ANS Major surgery source conducted through mobile examination centers held at randomly selected sites throughout the US