Which sterilization method should be used to disinfect a flexible endoscope used on a patient with TB?

The recommended method for disinfecting a flexible endoscope used on a patient with tuberculosis (TB) is typically through a process known as high-level disinfection, which is best achieved using liquid chemical sterilization. The use of high-level disinfectants like peracetic acid or glutaraldehyde provides effective microbial kill necessary for items exposed to pathogens, particularly in the case of highly infectious diseases such as TB.

While steam sterilization is an effective method, it may not be suitable for all types of flexible endoscopes, as the heat and moisture can potentially damage the equipment. Cold sterilization is often applied to items that can tolerate minimal sterilization and are not viable for high-risk pathogens. It may lack the efficacy needed for thorough disinfection in this scenario.

By using methods designed specifically for the type of endoscope and the pathogenic threat level, healthcare professionals can maintain the efficacy of the instruments while ensuring patient safety. Using the Steris system is an advanced method for high-level disinfection that is widely accepted in the medical community for reusable instruments, making it appropriate for scenarios involving TB.