Sigma metrics constitute a quantitative approach that integrates bias, imprecision and total allowable error to evaluate the performance of clinical laboratory assays ...

Internal quality control is an integral process of laboratory testing. A clinical laboratory's coagulation quality control (QC) program is a critical component of its quality assessment program. The ...

Many assays have integrated, built-in, or internal controls to demonstrate their operability at specific procedural steps. What role do these built-in controls play in quality control to assure ...