Evaluation of the Impact of Changing Quality Control Rules and Frequency on the Risk Management Index: Results from the Clinical Routine of a Medical Laboratory.

Objective: The consideration of the principles of risk management in the analytical process is a current trend. The aim of this study was to evaluate whether the risk management index (RMI) for various laboratory parameters can be influenced by interventions that change the internal quality control (IQC) strategy.

Methods: We selected 10 laboratory parameters associated with cardiovascular disease for the study (myoglobin, N-terminal fragment of the pro B-type natriuretic polypeptide, cardiac troponin T, creatinine kinase, lactate dehydrogenase, glucose, triglycerides, total cholesterol, and low-density lipoprotein and high-density lipoprotein cholesterol).