When should masks be worn in the OR?

Wearing masks in the operating room is essential to maintaining a sterile environment and preventing surgical site infections. Masks should be used when open sterile supplies are present because this scenario poses a risk of contamination. The primary purpose of wearing masks is to protect the sterile field from any potential droplets or aerosols that might be expelled, particularly from the mouths and noses of surgical staff.

Additionally, during surgery, there is a potential for airborne pathogens to compromise sterility, especially when working close to the surgical site. Masks serve as a barrier, significantly reducing the risk of microbial transmission.

While it may seem that masks would only be necessary during active surgeries or for specific high-risk procedures, the overarching focus is on maintaining sterility for all tasks that involve open supplies. This includes preparation and setup, as well as the actual performance of surgical procedures. Thus, wearing masks at all times when open sterile items are present is a standard best practice in the OR.