What is the purpose of quality control in laboratory testing?

The purpose of quality control in laboratory testing is fundamentally tied to ensuring the accuracy and reliability of test results. Quality control involves systematic measures and protocols that monitor and evaluate the testing processes. This includes checks for precision (the consistency of test results over time) and accuracy (how close the test results are to the true value). By implementing these quality control measures, laboratories can confidently report results that clinicians depend on for diagnosing conditions, choosing treatment plans, and making clinical decisions. The reliability of these results directly impacts patient safety and treatment outcomes.

While minimizing costs, expediting processes, and improving patient care can be potential benefits stemming from effective quality control measures, they are secondary outcomes. The primary focus of quality control is establishing robust testing methods and processes to maintain integrity in laboratory results.