This application lists over 400 laboratory tests, physical exam findings, history findings,and radiological studies for the most frequent diseases encountered in the primary caresetting. For each entry, measures of the tests efficacy found in the medical literatureare reported. These metrics include: Sensitivity, Specificity, Positive Predictive Value,Negative Predictive Value, Positive Likelihood Ratio, and Negative Likelihood Ratio.It also includes a calculator that will translate the Pre-test Probability into a Post-testProbability in the event of either a positive or negative test result.The database is categorized both by test and by disease. The tests are further divided intothree categories: Laboratory, History/Physical Exam, and Radiology. The Pubmed entrywhere the data was found is listed with each result, along with a brief description of thepaper.A short explanation of the evidence-based metrics is also available in the Informationsection.