Final answer:
The gown and gloves for the first scrub surgical technologist should be opened on the back table in the operating room to maintain sterility.
Step-by-step explanation:
When opening sterile supplies and instruments, the gown and gloves for the first scrub surgical technologist should be opened on the back table. The back table is a large, stainless steel table located in the operating room (OR) that is solely used for sterile supplies and instrumentation. It is crucial to maintain sterility throughout the procedure to prevent infection, which is why specific protocols on where to open and how to handle sterile items are followed.