Siff Clinical Informatics Boards study set 1 (A+ Guaranteed)

Clinical Informatics correct answers Is the intersection between Information technology and Health Care. Sensitivity correct answers Given the patient has the disease what is the probability of a positive test. Is a characteristic of the test. Not impacted by prevalence SN = TP/TP+FN = True positive rate Minimizes the false negatives called *recall* in information theory called *frequency* in systems approach like INTERNIST-1 "Recall that I'm frequently sensitive" Specificity correct answers Given the patient does not have the disease wha tis the probability of a negative test. A characteristic of the test not impacted by prevalence SP = TN / TN+ FP minimizes false positives Informatics definitions all.. correct answers revolve around the idea that its about the use of information not just the data itself. Bayes Theorem in words correct answers The relationship between the probabilities of A and B and the conditional probability of A given B and B given A. The Greek Oracle Problem correct answers The finding that computers were not good at replacing people which led to the current efforts as outlined by Freidman that the goal of informatics is to augment people not replace them. The Fundamental Theorem of Biomedical Informatics by Freidman correct answers "A person working in partnership with an information resource is 'better' than the same person unassisted" 3 corollaries 1. Informatics is more about people than technology 2. In order for the theorem to hold the resource must offer something the person does not already have - it must increment the persons knowledge in some way. 3. Whether the theorem holds depends on an interaction between the person and resource, the results of which cannot be predicted in advance.