In which situation is it least likely that an EMT would immobilize a patient's spine?

In the scenario where there are no distracting injuries or evidence of intoxication, it is least likely that an EMT would immobilize a patient's spine because both distracting injuries and intoxication can significantly mask the presence of a spinal injury. When a patient displays no distractions from their primary injury, the risk of spinal damage is often considered lower.

In contrast, the other scenarios indicate reasons for concern regarding potential spinal injury. Tingling in the extremities suggests possible nerve involvement, which raises the likelihood of a spine injury that would necessitate immobilization. An unresponsive patient who is still moving all extremities equally could indicate a serious neurological condition or an altered level of consciousness, warranting spine immobilization. Finally, pain in the cervical spine without numbness or tingling could still indicate an injury, as pain itself is a significant factor in determining the need for spinal immobilization. Therefore, the absence of distracting injuries or intoxication makes spinal immobilization less likely in that particular situation.