What is the purpose of collecting a control specimen?

The purpose of collecting a control specimen is to verify test accuracy and reliability. Control specimens are samples that have a known value or specific concentration of the analyte being tested. By comparing the results of the control specimen to established ranges or values, the technician can determine whether the testing methods and equipment are functioning correctly and producing valid results. This is essential in maintaining the integrity of laboratory tests and ensuring they yield accurate information for patient diagnosis and treatment.

In clinical settings, control specimens play a critical role in quality control processes, allowing labs to detect any discrepancies in testing conditions that may influence outcomes. Proper adherence to protocols involving control specimens contributes to patient safety and improves the overall reliability of laboratory testing.