CER Study Guide 2026
Everything you need to pass the CER exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CER Exam Format at a Glance
📚 CER Topics to Study (131)
✍️ Sample CER Questions & Answers
1. What is the significance of maintaining adequate ventilation (minimum 10 ACH) in an endoscope reprocessing room?
HLD chemicals like glutaraldehyde release toxic fumes; OSHA and AORN require a minimum of 10 air changes per hour in reprocessing rooms to protect staff from vapor inhalation.
2. Which of the following is a key preventive maintenance practice performed by reprocessing staff to avoid costly repairs to the light guide connector?
The waterproof cap is essential for protecting the sensitive electrical contacts and components within the light guide connector from fluid invasion during cleaning and disinfection. Failure to secure the cap properly is a leading cause of major, expensive repairs due to fluid damage.
3. What is the primary purpose of performing biological monitoring (e.g., spore testing) on sterilization equipment used in endoscopy units?
Biological indicators containing resistant spores confirm that the sterilization process achieved sufficient lethality to kill the hardest-to-kill organisms, validating cycle efficacy.
4. What corrective action is required when a sterilization cycle experiences a confirmed parameter deviation, such as an unplanned temperature drop during the cycle?
Any cycle parameter deviation requires quarantine of the affected load until a thorough investigation is completed, because compromised parameters may result in inadequate sterilization.
5. How should a reprocessing 'near-miss' event be handled?
Near-miss events provide valuable learning opportunities and must be formally documented and investigated to prevent future failures that could harm patients.
6. What is the primary purpose of the water-resistant (leak-test) cap applied to the light guide connector before reprocessing?
The water-resistant cap seals the light guide connector, allowing complete immersion of the scope body in detergent and high-level disinfectant solutions.