Guest Essay
Dr. Carmen Ricos and colleagues discuss the new additions and updates to the increasingly vital biologic variation database. Now in its 7th edition, the database provides the largest source of information on biological variation, allowable bias and imprecision, and desirable specifications for total allowable error.
Designing QC for a single test can be a challenge. Imagine the task of selecting the appropriate QC for more than 70 tests on multiple instruments across multiple laboratories. In this essay, Nuthar Jassam and colleagues describe how this was actually done at a network of laboratories in the UK.
Dr. Dietmar Stockl continues his series on quality control. This article discusses the need for stability and its relationship to the quality requirement.
Putting Sigma-metrics into action can have tangible results in the laboratory. This guest essay highlights the impact of redesigning QC based on Six Sigma concept in several hospitals in the Netherlands
Part three of an ongoing series on Internal Quality Control (IQC) by Dietmar Stockl. Dr. Stockl looks again at QC data examples from the real world of the laboratory, this time looking at the case when a laboratory purposes uses the wrong standard deviation.