What type of cleaning is essential after using an endoscope for a procedure?

Cleansing and high-level disinfection are crucial steps following the use of an endoscope after a procedure. This process ensures that all biological contaminants, including pathogens, are effectively removed from the endoscope's surfaces.

Cleansing involves physically removing organic material, such as blood or mucus, using appropriate cleaning agents and techniques. This preliminary step is vital since any organic debris can shield microorganisms from the action of disinfectants. Following cleansing, high-level disinfection (HLD) is employed to eliminate nearly all microorganisms, with the exception of large numbers of bacterial spores. This is especially important in flexible endoscopy due to the potential risk of infection transmission through inadequate cleaning protocols.

While sterilization may be discussed in some contexts, it is not typically feasible or required for flexible endoscopes that contact mucous membranes rather than sterile tissues. The emphasis on drying is also important, as moisture can promote microbial growth if the endoscope is not properly dried after cleaning. However, without proper cleansing and high-level disinfection, the risk of cross-contamination and infections increases significantly. This makes option C the most comprehensive and relevant choice for maintaining patient safety and endoscopic equipment integrity.