Which of the following is the MOST effective method for reprocessing endoscopes used during a colonoscopy?

The most effective method for reprocessing endoscopes used during a colonoscopy is glutaraldehyde. This chemical agent has a long history of use in the healthcare field as a high-level disinfectant, particularly for heat-sensitive medical equipment like flexible endoscopes. Glutaraldehyde is effective at killing a wide range of pathogens, making it suitable for reprocessing instruments that cannot withstand high temperatures or steam sterilization.

Endoscopes require meticulous cleaning and disinfection due to their intricate designs and the potential for contamination during the procedures. Using glutaraldehyde allows for thorough disinfection, ensuring that any residual biological material is eliminated, which is crucial for patient safety.

Other methods, while effective in certain situations, are not the most appropriate for endoscopes. Gravity displacement sterilizers are typically used for steam sterilization of surgical instruments that can tolerate high heat and pressure, but they are not suitable for delicate endoscopes. Ethylene oxide is a gaseous chemical sterilant that is effective for heat-sensitive items; however, the long exposure times and the need for aeration can complicate the reprocessing of endoscopes. Cobalt-60 radiation is a method used primarily for sterilizing bulk supplies and is not practical for individual flexible end