background iran has a widespread diagnostics and clinical support services (dcss) network that plays a crucial role in providing diagnostic and clinical support services to both inpatient and outpatient care. however, very little is known on the application of quality assurance (qa) policies in dcss units. this study explores the extent of application of eleven qa strategies in dcss units withi...

In recent years, quality assurance (QA) and good manufacturing practice (GMP) have become increasingly important in the pharmaceutical industry. They are of particular importance in the manufacture of veterinary vaccines since such products have the following specific characteristics: The active ingredients are almost always produced by the manufacturer (and not as is generally the case by anot...

If clinical quality assurance and cost-effectiveness of diagnostic testing are to be measured, some sort of measurement of the clinical value of a test result is needed. The predictive value of a test result is not a real measure of its clinical value, and, particularly, when used in the later stages of a diagnostic workup, it can be misleading. Using the same data that go into a calculation of...