Certified Endoscope Reprocessor (CER) Practice Test 2025 - Free Endoscope Reprocessing Practice Questions and Study Guide

The necessity of brushing all internal and external surfaces of endoscopes during manual cleaning is crucial for effective decontamination. Endoscopes are complex instruments that feature intricate internal channels and components where biological debris, proteins, and other contaminants can accumulate. If only external surfaces are addressed, harmful microorganisms can remain, posing a risk of infection when the endoscope is reused.

Brushing the internal surfaces helps to dislodge any residual matter that might not be adequately removed through rinsing or flushing alone. High-pressure flushing, while beneficial, may not reach or clean all areas effectively, especially within the narrow and convoluted channels of the endoscope. Therefore, comprehensive cleaning that includes both internal and external surfaces is essential to ensure the high standards of infection control required in healthcare settings. This thorough approach is vital in maintaining patient safety and preventing cross-contamination between procedures.