When an assistant receives a percutaneous injury to the finger while cleaning contaminated instruments, what should they do FIRST?

In the event of a percutaneous injury, such as a needle stick or cut from a contaminated instrument, the first action taken is to wash the wound thoroughly with soap and water. This step is crucial because it helps to remove any potentially infectious materials from the surface of the skin, reducing the risk of infection. Proper handwashing is one of the most effective methods to clean the wound and minimize the chances of pathogens entering the body.

Following the initial washing of the wound, other steps can be taken, such as notifying a supervisor or applying antiseptic, but the immediate priority is to clean the area effectively. Additionally, covering the wound with a bandage can be important for protection but is not the first step to take when dealing with a contamination risk.

Thus, washing hands with soap and water is the appropriate first response in managing a percutaneous injury, ensuring that the risk of infection is addressed promptly.