What is the purpose of pass-through windows in the OR?

• A. To allow surgeons to see the traffic in the hallways.
• B. To provide an area for taking breaks.
• C. To let dirt pass through to contaminated areas.
• D. To transfer instruments and supplies with reduced traffic through the sterile field, maintaining sterility.

Answer: (D)

Pass-through windows are designed to move instruments and supplies between the sterile field and adjacent nonsterile areas without heavily disturbing the sterile zone. By providing a controlled channel for transfer, they minimize door openings and air currents that can carry contaminants, helping to preserve sterility and protect the patient. This makes workflow more efficient while keeping the sterile field intact. They’re not meant for monitoring hallway traffic, taking breaks, or allowing dirt to pass into the sterile area.