CHEM 110 Lecture Notes - Lecture 8: Statistical Process Control, Standard Deviation, Quality Management
17 Oct 2015
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Document Summary
Introduction to quality control in the clinical chemistry laboratory. A crucial part of laboratory quality management referred to as quality control procedures (or more formally, statistical process control) and involves: Analyzing qc material with known analyte values. Using a systematic process applying a set of standardized rules that assess the accuracy and precision of qc material. With the validity and reproducibility of the qc material established, the technologist can have confidence in the same for the patient values produced at the same time. Derived from human or animal biological fluids. Contains multiple analytes e. g. all analytes measured on a general chemistry platform: wbc, rbc and platelets as present in human whole blood for hematology, other specialized analytes (blood gas qc material) A laboratory control range is established for each type of qc material and graphed manually (on a levey-jennings chart) or held within the laboratory automation/lis. Both normal and abnormal qc material are analyzed at regular intervals.
