What is the main purpose of using a control sample in lab testing?

The main purpose of using a control sample in lab testing is to verify the accuracy of results. Control samples are standardized samples with known values that are used as a benchmark. By comparing the results from the test samples to those from control samples, laboratory personnel can assess whether the test is performing correctly and producing reliable results. This verification is essential for ensuring that any deviations in the measured values are due to the test sample itself and not due to errors in the testing process.

Control samples help identify potential sources of error and maintain the quality of the testing procedure. If the results from the test samples fall within the expected range determined by the control samples, the accuracy of the test method is confirmed. This practice is crucial in a clinical laboratory setting, where precise and accurate results are necessary for diagnosing and treating patients.

While enhancing sample collection, reducing testing time, and increasing patient comfort are important aspects of laboratory practices, they do not directly relate to the primary use of control samples. The focus of control samples is specifically on the accuracy and reliability of the testing assays, thus solidifying their critical role in laboratory testing protocols.