Which plot is recognized for detecting all types of QC errors?

The Levy-Jennings plot is widely recognized for its effectiveness in detecting various types of quality control (QC) errors in laboratory settings. This graphical representation plots the control values against time, allowing for the visualization of trends, shifts, and any points that fall outside the established control limits.

One key feature of the Levy-Jennings chart is that it displays both the mean and the standard deviation of the control measurements, providing a clear framework to identify deviations from expected performance. By observing how data points behave relative to the control limits, laboratory personnel can quickly recognize potential problems that may arise from systematic errors, random errors, or shifts in performance.

Using a Levy-Jennings plot is beneficial because it facilitates the continuous monitoring of the analytical process, allowing for early intervention before a systematic issue affects patient results. As such, it helps maintain the reliability and accuracy of laboratory testing.