Once instruments are scrubbed, rinsed, dried and wrapped, the surgery pack is placed in which of the following to complete the sterilization process?

Using an autoclave to complete the sterilization process for surgical instruments is the most effective method. Autoclaving employs high-pressure steam to achieve temperatures that can kill all forms of microorganisms, including bacteria, viruses, and spores. This method not only ensures that the instruments are sterile but also penetrates through wraps and packaging, allowing for effective sterilization of the entire surgical pack.

In contrast, other methods mentioned do not provide the same level of sterilization. A dry heat oven requires longer exposure times and higher temperatures, which may not be suitable for all types of surgical instruments, especially those sensitive to heat. A chemical sterilizer uses liquid chemicals to disinfect, which may not be as reliable for instruments that require thorough sterility. An ultrasonic cleaner is primarily used for cleaning instruments by removing debris and contaminants rather than sterilizing them.

Therefore, utilizing the autoclave for sterilization is the most appropriate choice to ensure that surgical instruments are completely sterilized and ready for safe use in surgical procedures.