Nr 503 Week 2 |49 Questions| With Correct Answers.

5 W's of descriptive epidemiology {Ans: } Diagnosis or health event (what), Person (who), Place (where), Time (when) and Modes of Transmission (why/how)primary prevention {Ans: } Efforts to prevent an injury or illness from ever occurring.how does primary prevention occur {Ans: } through application of epidemiological concepts and database to assess risk factors.secondary prevention {Ans: } screening for diseasewhat is the most cost-effective strategy to improve health status {Ans: } secondary preventiontertiary prevention {Ans: } Interventions that would prevent complications from chronic conditions and prevent further illness, injury, or disability.natural history of disease {Ans: } nature of the disease and how it progressesprimary prevention {Ans: } interventions aimed at preventing that condition disease or disordersecondary prevention {Ans: } interventions aimed at detecting a disease early in the coursetertiary prevention {Ans: } limiting the effect of the disease once it's establishedtrue positive {Ans: } hookers when do they test correctly reports disease presents when disease is in fact presentfalse positive test {Ans: } occurs when the test incorrectly reports disease presents when disease is in fact absent.false negative {Ans: } occurs when the test incorrectly reports the absence of a disease when the disease is in fact presentinternal validity {Ans: }