MDRAO Practice Exam 2025 – Complete Exam Prep Resource

The proper technique for cleaning lumens in medical devices involves utilizing brushes, specifically designed for the lumen's diameter and characteristics. This technique is effective because brushing mechanically removes debris, biofilm, and contaminants from the internal surfaces of the lumen, ensuring a thorough cleaning process. Brushing three times is a common practice to ensure that all residue is adequately dislodged, thus enhancing the effectiveness of the cleaning process. This mechanical action is essential in preparing the device for further disinfection or sterilization.

While rinsing with hot water, suctioning out debris, or soaking in disinfectant may be components of a cleaning protocol, they are not the primary methods for addressing the intricate and narrow structures of lumens effectively. Hot water can aid in loosening debris, but without the mechanical action of brushing, it may not suffice. Suctioning is useful for removing particles but may not reach all surfaces adequately. Soaking in disinfectant serves a different purpose, focusing on microbial reduction rather than physical cleaning. Hence, brushing remains the most reliable technique for achieving the cleanliness required in lumens of medical devices.