You have diagnosed a Patient clinically as having SLE and ordered 6 tests out of which 4 tests have come positive and 2 are negative. Which of the following values are required to determine the probability of SLE at this point?
Correct Answer: Prior probability of SLE, sensitivity and specificity of each test
Description: In this point where the diagnosis of SLE has to be determined, the application of Baye's theorem will come to aid. According to this theorem, by assessing the post-test probability of each test that has been done on this patient, the probability of SLE can be known. In return, the post-test probability is calculated by the following three parameters: i. Prior probability of SLE ii. Sensitivity of each test done iii. Specificity of each test done Ref: Park's Texbook of Preventive and Social Medicine 19th Edition; Pages 705; 119 - 122; Biomedical Informatics: Computer Applications in Health Care And Biomedicine By Edward Hance Sholiffe; 3rd Edition; Pages 99 - 100; Harrisons Textbook of Internal Medicine 16th Edition; Pages 09; The Cleveland Clinic Cardiology Board Review By Brian P. Griffin, Cuis M. Rimmerman, Eric J. Topol; 2007 Edition; Page 44
Category:
Social & Preventive Medicine
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