Basic and Intermediate Systems of Quality Control for the Clinical Laboratory



What is Quality Control?
Quality Control in the clinical laboratory is a system designed to increase the probability that each result rep o rted by the laboratory is valid and can be used with confidence by the physician making a diagnostic or therapeutic decision. Quality control (QC)procedures function by detecting analytical errors; ideally any error large enough to invalidate the medical usefulness of laboratory results should be detected. In practice, many QC procedures operate by submitting controls (sample materials well characterized by previous testing) to the laboratory testing process, and comparing the results of current testing to an expected range of values derived from previous testing

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