Certified Ophthalmic Medical Technologist (COMT) Practice Exam

What are the main causes of corrosion in surgical instruments?

1. Inadequate sterilization and excessive handling

2. Overlong exposure to sterilization chemicals and inadequate cleaning and drying

3. Poor quality of materials and aging of instruments

4. Improper storage and lack of maintenance

The correct answer is: Overlong exposure to sterilization chemicals and inadequate cleaning and drying

The primary cause of corrosion in surgical instruments often stems from prolonged exposure to sterilization chemicals and insufficient cleaning and drying processes. When instruments are not adequately cleaned after procedures, residues can remain on their surfaces, which can react with sterilants during the sterilization process. This reaction can lead to corrosion. Furthermore, if instruments are not dried properly after sterilization, moisture can remain, creating an environment conducive to corrosion, particularly with the presence of certain chemicals used during sterilization. Inadequate cleaning means that organic materials or salts can trap moisture on the instruments, promoting corrosion. Maintaining proper cleaning protocols and ensuring thorough drying following disinfection or sterilization are essential practices to mitigate the risk of corrosion in surgical instruments. While other factors can contribute to corrosion, they are often secondary to the effects of chemical exposure and improper cleaning. For instance, poor storage may lead to environmental conditions that could accelerate corrosion, but without the initial issues of chemical exposure and cleaning, the instruments may remain in good condition.