Which solution is recommended for flushing flexible endoscopes after they are disinfected?

The recommended solution for flushing flexible endoscopes after they are disinfected is 70% alcohol. This concentration is typically effective in helping to ensure the endoscope is free from remaining moisture, which can be a breeding ground for microbial growth.

Using 70% alcohol strikes a balance that maximizes its antimicrobial properties while reducing the potential for damage to the delicate components of the endoscope. At this concentration, alcohol is effective because it denatures proteins and disrupts cell membranes of bacteria, viruses, and fungi, effectively reducing microbial load significantly.

In comparison, other options like 80% alcohol might not offer any additional antimicrobial benefits and can risk damaging some materials within the endoscope. Hydrogen peroxide is another potent disinfectant but, in higher concentrations, can also compromise the integrity of endoscope materials if not used properly. Sodium hypochlorite, while effective for disinfection, is highly corrosive and can cause significant damage to the internal mechanisms of flexible endoscopes. Thus, 70% alcohol remains the most appropriate and widely recommended option for this purpose.