Certified Endoscope Reprocessor (CER) Practice Test 2025 – Complete Exam Prep

The ideal contact time of 20 to 30 minutes for an endoscope to remain submerged in high-level disinfectant is based on the efficacy of the chemical agent being used. High-level disinfection is crucial for ensuring that all microorganisms, including bacteria, viruses, and fungi, are effectively killed, especially when dealing with instruments that have been in contact with mucous membranes or sterile body areas.

Studies and guidelines from leading health organizations dictate this contact time as optimal to achieve the required level of disinfection. It ensures that the disinfectant has adequate time to penetrate and act on all surfaces of the endoscope, minimizing the risk of infection transmission during procedures.

Shorter contact times may not allow sufficient time for the disinfectant to work effectively, potentially leading to inadequate disinfection and increased risk of infections from reused endoscopes. Therefore, understanding and adhering to the recommended contact time is critical for healthcare professionals involved in reprocessing endoscopes.