Final answer:
The surgeon, nurse, and anesthesia professional are the 2-3 team members that typically "open" the room to create the sterile environment.
Step-by-step explanation:
The 2-3 team members that typically "open" the room to create the sterile environment are the surgeon, nurse, and anesthesia professional. Before the surgery begins, these team members perform a series of checks and confirmations to ensure the patient's identity, the surgical site, and procedure. They also review critical events, such as unexpected steps, operative duration, and anticipated blood loss. The nursing staff also reviews confirmation of sterility and equipment availability.
A sterile environment is a clean room where the possibility of this is entirely ruled out, since the system is closed, microorganism cannot be found. Sterile environments are common in the pharmaceutical and medical field where the presence of microorganism would bear great risk.