AUA med 1 (block 1,2&3) EBM Dr George Mansoor Questions With Complete Solutions

describe the step in EBP process correct answer: assess pt ask question acquire evidence appraise that evidence for its validity apply: talk with pt self evaluation describe PICO correct answer: P-- patient's characteristics and his problem problem I- Intervention or prognosis you're considering C-- compare standard medical care O-- what you hope to accomplish for pt what is a type 1 error in statistic correct answer: is rejecting a correct or true null hypothesis in favor of Ha a correct or true null hypothesis will have p <.05 what is type 2 error in statistic correct answer: failed to reject a null hypothesis a correct or true null hypothesis will have p <.05 (to be continued ) describe the type of study to acquire info correct answer: => case control studies--> (efficient for rare disease but have high bias) studies made by comparing pt who have a specific condition with people who don't have that condition based on past exposure ex: pt w/ lung cancer vs pt w/o lung cancer and ask the if both group use to smoke => cohort studies--.> (low bias, not efficent for rare disease) identify pts on a specific treatment or exposure-follow them forward over time, then compare their outcome with similar group that has not been affected by treatment or exposure being studied => cross sectional study is observing at snapshot where exposure & outcome are assedd at the same time ex: line everybody up and take their bp and hr what's the difference between accuracy and precision correct answer: accuracy is the deviation of a measurement result from its true value