Describe the rescue techniques and considerations necessary when dealing with a non-responsive worker found inside a confined space, factoring in the hazards present and the limitations of different methods.

When a worker is found unresponsive inside a confined space, a swift and well-executed rescue is critical. However, the rescue operation must carefully consider the unique hazards of the confined space and the limitations of different rescue techniques to ensure the safety of both the victim and the rescuers. The primary goal is to remove the worker from the hazardous environment as quickly and safely as possible, while avoiding further risk. The first consideration in any confined space rescue is that the attendant should never enter the confined space to rescue the unresponsive worker. The primary responsibility of the attendant is to monitor conditions inside the confined space, and to call for rescue help, and any entrance into the space, by the attendant, would place two people at risk. Instead, non-entry rescue should be attempted first. Non-entry rescue techniques involve using equipment from outside the confined space to remove the unresponsive worker. For example, if the unresponsive worker is wearing a harness and retrieval line, the attendant can try to pull the worker out, taking care to avoid causing further injury. This technique has limitations, since the path of retrieval must be clear, without obstructions or narrow areas that could cause the line to snag, or cause injuries from contact with objects while being pulled out. Also, this non-entry technique will not be possible if the worker has not been wearing a harness. All confined space workers should wear a harness with a retrieval line whenever working in an entry confined space. Non-entry retrieval, while quick and easy, may not be suitable in all situations. The attendant should be aware of the limitat....