What is the primary purpose of the Minimum Effective Concentration (MEC) test?

The primary purpose of the Minimum Effective Concentration (MEC) test is to determine the potential dilution of the high-level disinfectant. This test assesses the lowest concentration of the disinfectant that is still effective in achieving the desired level of microbial inactivation. Understanding this dilution is critical because it informs the proper preparation and use of disinfectants in healthcare settings, ensuring that reprocessing procedures for flexible endoscopes are effective while minimizing waste and cost. Proper concentrations must be maintained to ensure that the disinfectants are performing at their intended efficacy, which is essential for infection control and patient safety.