In a suspected spinal injury scenario, what vital sign should be monitored closely?

In a suspected spinal injury scenario, closely monitoring the respiratory rate is critical due to the potential risks associated with spinal injuries, particularly those impacting the cervical spine. The cervical spine houses the spinal cord, which controls respiratory function through various nerves. If the spinal cord is compromised, it can lead to respiratory muscle paralysis, resulting in hypoventilation or respiratory failure.

Changes in the respiratory rate can provide vital clues about the patient's condition. For example, an increased respiratory rate might indicate distress or hypoxia, while a decreased rate could signify impaired respiratory function due to spinal cord injury. By monitoring this vital sign carefully, responders can assess the need for intervention, such as supplemental oxygen or advanced airway management.