How useful of a medical test ??Created by:
In our routine daily job in healthcare settling, we do order a lot of different medical tests to investigates a variety of different symptoms. But how do we determine whether is that particular test will be useful to be done ?? A good medical investigation test must have the quality of accuracy, feasibility,and reproducibility. It must have an effect on clinical decisions and the outcomes of patients. "How accurate is the test ?" is a very important question for every medical test. The sensitivity, specificity, positive predictive value, negative predictive value, receiver operating characteristic curves, and likelihood ratio are the important considerations of a medical test, with regards to its accuracy in diagnosing a specific medical disease. Another aspect to be considered will be the cost, risks and acceptability of the tests to the patients. So, we should always think about the necessity of the any medical test before ordering it, and try to avoid doing a routine test without any purpose or any clinical question to answer.