In which circumstance should a cervical collar be used?

A cervical collar should be used when there is suspicion of a spinal injury. This device is specifically designed to stabilize the cervical spine and prevent any further movement that could exacerbate an existing injury. The spine is a critical part of the central nervous system, and any damage could lead to significant complications, including paralysis.

By utilizing a cervical collar, EMS personnel can provide support to the neck and limit motion, which is essential in preventing further injury. This practice aligns with the protocol of managing potential spinal cord injuries, thereby ensuring patient safety and optimizing outcomes.

In scenarios involving immediate transport or unconsciousness without injuries, other protocols are more appropriate, and the risk of spinal injury would not be the primary concern. Similarly, while a fracture may require immobilization, not all fractures necessitate the use of a cervical collar, particularly if they are not spinal in nature.