MDRAO (Medical Device Reprocessing Association of Ontario Exam with Questions and Solutions

It covers key domains which include; Decontamination and Cleaning Principles, High-Level Disinfection (HLD) and Sterilization, Quality Assurance and Monitoring, Instrument Assembly and Packaging, Infection Prevention and Control (IPAC), Professional Standards and Education and Facility Design and Workflow Management. Which of the following best explains why immediate point-of-use cleaning is emphasized in medical device reprocessing according to MDRAO principles? a. It reduces the need for sterilization b. It prevents organic soil from drying and becoming harder to remove c. It eliminates all microorganisms instantly d. It replaces the need for manual cleaning Correct Answer: b Rationale: MDRAO emphasizes that allowing soil such as blood or tissue to dry on instruments makes cleaning significantly more difficult and less effective. Immediate removal or moistening at point-of-use prevents adhesion of contaminants and supports subsequent decontamination steps. It does not replace sterilization or eliminate microorganisms by itself. A technician selects a detergent with a neutral pH for cleaning surgical instruments. What is the primary reason for this choice? a. Neutral detergents are always cheaper b. They are universally compatible with all sterilization methods c. They minimize damage to delicate instruments and materials d. They disinfect while cleaning Correct Answer: c Rationale: Neutral pH detergents are preferred because they are less corrosive and safer for a wide range of instrument materials, including delicate devices. While they aid in soil removal, they are not disinfectants, and their selection is based on compatibility and preservation of device integrity.