Basics of diagnostic evaluation part 2

Basics of diagnostic evaluation part 2

Blog Article

Despite a long tradition of reporting diagnostic accuracy in terms of sensitivity and specificity, only a minority of physicians correctly interprets and applies this information.Likelihood ratios (LRs) are more intelligible and more meaningful because it connects the preprobability of a person to postprobability that guide the physician to MAGNESIUM 1:1 make the right decision about further procedures.Using Fagan Nomogram, makes the application of the LRs more customized HEMO FACTORS to each case.In case of testing a continuous diagnostic test, receiver operating curve is used to set a cut-off value that will be the line between disease and nondisease persons.

When determining the cut-off, the trade-offs between increasing the sensitivity with lowering specificity and vise-versa depends on the nature of the disease, as well as whether this test will be used as screening or as diagnostic.