If contaminated instruments cannot be washed immediately, what should be done to maintain their condition?

• A. Leave them dry and uncovered
• B. Spray them with enzymatic foam and cover with a moistened towel
• C. Submerge them in saline solution
• D. Wrap them in a dry towel

Answer: (B)

To properly maintain contaminated instruments that cannot be washed immediately, spraying them with enzymatic foam and covering them with a moistened towel is the ideal approach. Enzymatic foams are designed to break down organic material, such as blood and tissue, which helps prevent the drying and hardening of contaminants on the instruments. By keeping the instruments moist with the foamed enzymatic solution, it allows for easier cleaning later and reduces the risk of infection.

Covering the instruments with a moistened towel further helps to maintain moisture levels and protects them from environmental contaminants. This method effectively prepares the instruments for proper cleaning and sterilization when the opportunity arises.

Other options, like leaving instruments dry and uncovered or wrapping them in a dry towel, do not provide the necessary moisture, which can lead to the drying and bonding of contaminants to the instrument surfaces, making later cleaning more difficult. Submerging them in saline solution is not recommended as it does not effectively address the bio-burden and may introduce additional contaminants.