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Learn about Levey Jennings charts, Gaussian distribution, accuracy, precision, and reliability in maintaining quality control for laboratory testing. Discover the importance of precise and accurate results in patient testing.
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Accuracy • The closeness of the measured result to the true value
Precision • Reproducibility or closeness of results to each other
Reliability • The ability to maintain both precision and accuracy
Quality Control • Quality control is used to test the analytical phase of patient testing. • It is a process or system for monitoring the quality of laboratory testing, and the accuracy and precision of results
Quality Control • Quality control samples are tested along with patient samples to monitor the validity of the analysis. • If quality control samples which have a known concentration do not give expected results, it can often mean an error occurred that affected patient results as well.