Surgical Tech Practice Exam

What is commonly added to sterile water before placing soiled instruments in a basin for decontamination?

1. Chlorine bleach

2. Enzyme detergent

3. Povidone-iodine

4. Sodium bicarbonate

The correct answer is: Enzyme detergent

Adding enzyme detergent to sterile water before placing soiled instruments in a basin for decontamination is a common practice in surgical settings. Enzyme detergents are specifically designed to break down and remove organic materials such as blood, tissue, and other bioburden that may be present on surgical instruments. This is particularly important because it not only assists in cleaning but also helps to prevent the formation of biofilms and ensures that the instruments can be properly sterilized afterward. By using enzyme detergents, the process of cleaning becomes more effective, as these detergents work at a molecular level to digest contaminants, making them easier to rinse away. The use of sterile water as a solvent ensures that no additional contaminants are introduced into the cleaning process, maintaining a sterile environment as much as possible during decontamination. While other substances mentioned may have their uses in various contexts, they do not serve the same specific purpose of enzymatic breakdown of organic materials in the cleaning process of surgical instruments.