Medical Device Reprocessing Association of Ontario (MDRAO) Practice Exam

Which type of lubricant is NOT recommended for reprocessing instruments?

1. Silicone spray

2. Petroleum-based oils

3. Greaseless, water-soluble lubricant

4. Vegetable oils

The correct answer is: Petroleum-based oils

Petroleum-based oils are not recommended for reprocessing instruments primarily due to their potential to leave a residue that can be difficult to remove. Such residues may interfere with the sterilization process, potentially allowing microorganisms to survive. This is critical in the context of medical device reprocessing, where ensuring the complete removal of all contaminants is essential for patient safety. Additionally, petroleum-based lubricants can degrade certain materials commonly used in surgical instruments, compromising their integrity and longevity. This deterioration may lead to malfunction or create additional risks during use. In contrast, silicone sprays are sometimes used because they are non-toxic and can provide a good level of lubrication without leaving harmful residues. Greaseless, water-soluble lubricants are designed to wash away easily and not leave behind residues, making them suitable for use in medical device reprocessing. Vegetable oils, while they may have some lubricating properties, are also typically avoided because they can spoil over time and create additional cleaning challenges. However, the primary concern remains the potential negative impact of petroleum-based oils on instruments and patient safety during procedures.